Climate and average weather in Īstgāh-e Rāh Āhan-e Garmsār
In Īstgāh-e Rāh Āhan-e Garmsār, the summers are sweltering, dry, and clear and the winters are cool, snowy, and mostly clear.
Over the course of the year, the temperature in Īstgāh-e Rāh Āhan-e Garmsār typically varies from 0°C to 38°C, and is rarely below -4°C or above 42°C. July is the hottest month of the year, while January is the coldest.
Based on the travel score, the best times of year to visit Īstgāh-e Rāh Āhan-e Garmsār for warm-weather activities are from late March to early May and late September to early November.
- Hottest
- Jul
- 38°
- Coldest
- Jan
- 0°
- Wettest
- Mar
- 29 mm
- Driest
- Aug
- 1 mm
- Rain / yr
- 151 mm
- 34 wet days
- Daylight
- 9.6–14.4 h
- shortest–longest
- Elevation
- 848 m
- 35.2°N
- Clearest
- Aug
- 5% cloud
Īstgāh-e Rāh Āhan-e Garmsār weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late March to early May.
Temperature through the year
Daily average highs and lows in Īstgāh-e Rāh Āhan-e Garmsār, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 4.1 months, from May 22 to September 22, with daily high temperatures above 31°C. The hottest month of the year in Īstgāh-e Rāh Āhan-e Garmsār is July, with an average high of 38°C and low of 27°C.
The cool season lasts 3.4 months, from November 20 to March 1, with daily high temperatures below 15°C. The coldest month of the year in Īstgāh-e Rāh Āhan-e Garmsār is January, with an average low of 0°C and high of 10°C.
Days typically run about 11°C warmer than nights, with the widest day–night swing (around 13°C) in September.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 10 | 12 | 18 | 24 | 30 | 36 | 38 | 37 | 33 | 26 | 17 | 11 |
| Avg low (°C) | 0 | 2 | 7 | 13 | 19 | 24 | 27 | 25 | 20 | 14 | 7 | 2 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 10 | 0 |
| Feb | 12 | 2 |
| Mar | 18 | 7 |
| Apr | 24 | 13 |
| May | 30 | 19 |
| Jun | 36 | 24 |
| Jul | 38 | 27 |
| Aug | 37 | 25 |
| Sep | 33 | 20 |
| Oct | 26 | 14 |
| Nov | 17 | 7 |
| Dec | 11 | 2 |
How hot and cold Īstgāh-e Rāh Āhan-e Garmsār really feels
The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.
On the hottest afternoons, once humidity is folded in, Īstgāh-e Rāh Āhan-e Garmsār feels like about 39°C (around July 10). About 118 days a year carry some heat stress, peaking in July.
On the coldest nights, wind chill pulls the feels-like down to about -3°C (around January 19), with roughly 63 freezing days a year (feels-like at or below 0°C), worst in January.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 10 | 12 | 18 | 24 | 30 | 36 | 38 | 37 | 33 | 25 | 17 | 11 |
| Air high (°C) | 10 | 12 | 18 | 24 | 30 | 36 | 38 | 37 | 33 | 26 | 17 | 11 |
| Feels-like low (°C) | -2 | 0 | 5 | 13 | 19 | 24 | 27 | 25 | 20 | 13 | 5 | 0 |
| Air low (°C) | 0 | 2 | 7 | 13 | 19 | 24 | 27 | 25 | 20 | 14 | 7 | 2 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 10 | 10 | -2 | 0 |
| Feb | 12 | 12 | 0 | 2 |
| Mar | 18 | 18 | 5 | 7 |
| Apr | 24 | 24 | 13 | 13 |
| May | 30 | 30 | 19 | 19 |
| Jun | 36 | 36 | 24 | 24 |
| Jul | 38 | 38 | 27 | 27 |
| Aug | 37 | 37 | 25 | 25 |
| Sep | 33 | 33 | 20 | 20 |
| Oct | 25 | 26 | 13 | 14 |
| Nov | 17 | 17 | 5 | 7 |
| Dec | 11 | 11 | 0 | 2 |
Average hourly temperature in Īstgāh-e Rāh Āhan-e Garmsār
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on July afternoons, near 38°C, and coldest before dawn in January, near 0°C.
Īstgāh-e Rāh Āhan-e Garmsār weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 10° / 0° | 21 | 4.8 | 1.2 | 9.9 | 2.5 |
| Feb | 12° / 2° | 22 | 4.9 | 1 | 10.7 | 3.9 |
| Mar | 18° / 7° | 29 | 5.8 | 0.4 | 11.7 | 6.5 |
| Apr | 24° / 13° | 18 | 3.7 | 0 | 12.9 | 8.0 |
| May | 30° / 19° | 7 | 1.8 | 0 | 13.8 | 6.2 |
| Jun | 36° / 24° | 1 | 0.3 | 0 | 14.3 | 2.8 |
| Jul | 38° / 27° | 1 | 0.2 | 0 | 14.1 | 1.2 |
| Aug | 37° / 25° | 1 | 0.2 | 0 | 13.3 | 2.2 |
| Sep | 33° / 20° | 1 | 0.3 | 0 | 12.2 | 5.2 |
| Oct | 26° / 14° | 7 | 1.6 | 0 | 11.1 | 8.6 |
| Nov | 17° / 7° | 22 | 4.6 | 0.2 | 10.1 | 6.1 |
| Dec | 11° / 2° | 22 | 5.3 | 0.3 | 9.7 | 3.1 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Īstgāh-e Rāh Āhan-e Garmsār gets about 151 mm of precipitation a year. On a typical day the chance of rain is mostly dry, but that rises and falls sharply with the seasons.
The wetter season lasts 6.3 months, from around Oct 26 to May 5, peaking in December at about 20% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 21.
March is the wettest month by volume, with 29 mm over about 6 wet days; August is the driest, with 1 mm. Some of the cold-season precipitation falls as snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 16 | 17 | 18 | 13 | 6 | 1 | 1 | 0 | 1 | 6 | 15 | 17 |
| Rain days | 5 | 5 | 6 | 4 | 2 | 0 | 0 | 0 | 0 | 2 | 5 | 5 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 16 | 5 |
| Feb | 17 | 5 |
| Mar | 18 | 6 |
| Apr | 13 | 4 |
| May | 6 | 2 |
| Jun | 1 | 0 |
| Jul | 1 | 0 |
| Aug | 0 | 0 |
| Sep | 1 | 0 |
| Oct | 6 | 2 |
| Nov | 15 | 5 |
| Dec | 17 | 5 |
Monthly rainfall
Over a full year, Īstgāh-e Rāh Āhan-e Garmsār collects about 151 mm of rain across 34 wet days — roughly 13 mm in an average month.
It doesn’t fall evenly. March is the wettest month with 29 mm, while August is the driest at just 1 mm. The three wettest months alone bring about 48% of the year’s total, and some of the cold-season precipitation falls as snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 21 | 22 | 29 | 18 | 7 | 1 | 1 | 1 | 1 | 7 | 22 | 22 |
| Rain days | 5 | 5 | 6 | 4 | 2 | 0 | 0 | 0 | 0 | 2 | 5 | 5 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainfall (mm) | Rain days | Snow days | |
|---|---|---|---|
| Jan | 21 | 5 | 1 |
| Feb | 22 | 5 | 1 |
| Mar | 29 | 6 | 0 |
| Apr | 18 | 4 | 0 |
| May | 7 | 2 | 0 |
| Jun | 1 | 0 | 0 |
| Jul | 1 | 0 | 0 |
| Aug | 1 | 0 | 0 |
| Sep | 1 | 0 | 0 |
| Oct | 7 | 2 | 0 |
| Nov | 22 | 5 | 0 |
| Dec | 22 | 5 | 0 |
Snow in Īstgāh-e Rāh Āhan-e Garmsār
Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.
Īstgāh-e Rāh Āhan-e Garmsār averages about 3 snowy days a year. Snow season runs roughly Dec 19 to Mar 16 — about 2.9 months.
February is snowiest, with roughly 1.0 day of snow and an estimated 3 cm of snowfall. Over the year that adds up to an estimated 11 cm of snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Snowfall (cm) | 5 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| Snow days | Snowfall (cm) | |
|---|---|---|
| Jan | 1 | 5 |
| Feb | 1 | 3 |
| Mar | 0 | 1 |
| Apr | 0 | 0 |
| May | 0 | 0 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 0 | 0 |
| Sep | 0 | 0 |
| Oct | 0 | 0 |
| Nov | 0 | 1 |
| Dec | 0 | 2 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Īstgāh-e Rāh Āhan-e Garmsār, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.
The clearer part of the year begins around May 18 and lasts for 5.3 months, ending around October 24. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 100% of the time on average.
The cloudier part of the year begins around October 25 and lasts for 6.7 months, ending around May 17. The cloudiest month is March, when it is overcast or mostly cloudy 32% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 73 | 72 | 68 | 69 | 81 | 97 | 100 | 100 | 99 | 88 | 74 | 73 |
| Cloudier (%) | 27 | 28 | 32 | 31 | 19 | 3 | 0 | 0 | 1 | 12 | 26 | 27 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 73 | 27 |
| Feb | 72 | 28 |
| Mar | 68 | 32 |
| Apr | 69 | 31 |
| May | 81 | 19 |
| Jun | 97 | 3 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 99 | 1 |
| Oct | 88 | 12 |
| Nov | 74 | 26 |
| Dec | 73 | 27 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 15, brings about 14 h 24 min of light; the shortest, around December 14, only 9 h 36 min — a swing of roughly 4 h 48 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.9 | 10.7 | 11.7 | 12.9 | 13.8 | 14.3 | 14.1 | 13.3 | 12.2 | 11.1 | 10.1 | 9.7 |
| Sunrise (AM) | 7:14 | 6:55 | 6:19 | 5:34 | 5:02 | 4:50 | 5:02 | 5:25 | 5:49 | 6:13 | 6:43 | 7:08 |
| Sunset (PM) | 5:06 | 5:36 | 6:02 | 6:28 | 6:52 | 7:12 | 7:11 | 6:45 | 6:02 | 5:19 | 4:49 | 4:46 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 9.9 | 7:14 | 5:06 |
| Feb | 10.7 | 6:55 | 5:36 |
| Mar | 11.7 | 6:19 | 6:02 |
| Apr | 12.9 | 5:34 | 6:28 |
| May | 13.8 | 5:02 | 6:52 |
| Jun | 14.3 | 4:50 | 7:12 |
| Jul | 14.1 | 5:02 | 7:11 |
| Aug | 13.3 | 5:25 | 6:45 |
| Sep | 12.2 | 5:49 | 6:02 |
| Oct | 11.1 | 6:13 | 5:19 |
| Nov | 10.1 | 6:43 | 4:49 |
| Dec | 9.7 | 7:08 | 4:46 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Īstgāh-e Rāh Āhan-e Garmsār averages about 22 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 16 and 30 days.
The sunnier stretch runs 5.0 months, from around May 22 to Oct 21. The sunniest month is August, with roughly 30 sunny days (brilliant).
The greyest month is April, down near 16 sunny days — about 46% fewer than the August peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 19 | 16 | 17 | 16 | 21 | 28 | 30 | 31 | 29 | 24 | 18 | 18 |
| Sky | Bright | Bright | Bright | Bright | Bright | Brilliant | Brilliant | Brilliant | Brilliant | Brilliant | Bright | Bright |
| Sunny days | Sky | |
|---|---|---|
| Jan | 19 | Bright |
| Feb | 16 | Bright |
| Mar | 17 | Bright |
| Apr | 16 | Bright |
| May | 21 | Bright |
| Jun | 28 | Brilliant |
| Jul | 30 | Brilliant |
| Aug | 31 | Brilliant |
| Sep | 29 | Brilliant |
| Oct | 24 | Brilliant |
| Nov | 18 | Bright |
| Dec | 18 | Bright |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
In Īstgāh-e Rāh Āhan-e Garmsār, the air stays dry or comfortable essentially all year. Even in July, the muggiest month, it feels humid or worse only about 0% of the time — humidity is not something you need to plan around here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 99 | 99 | 100 | 100 | 100 | 100 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| Jan | 100 | 0 |
| Feb | 100 | 0 |
| Mar | 100 | 0 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 99 | 1 |
| Aug | 99 | 1 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 100 | 0 |
| Dec | 100 | 0 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Across the year, average wind speed in Īstgāh-e Rāh Āhan-e Garmsār is typically calm, near 9 km/h, and varies moderately with the seasons.
The windier part of the year lasts 6.3 months, from around Mar 7 to Sep 14. The windiest month is July, averaging about 12 km/h (light breeze).
The calmer part of the year runs from around Sep 15 to Mar 6, with December the calmest month at about 6 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 7 | 8 | 9 | 10 | 10 | 11 | 12 | 11 | 9 | 7 | 7 | 6 |
| Feels | calm | calm | calm | calm | calm | calm | light breeze | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 7 | calm |
| Feb | 8 | calm |
| Mar | 9 | calm |
| Apr | 10 | calm |
| May | 10 | calm |
| Jun | 11 | calm |
| Jul | 12 | light breeze |
| Aug | 11 | calm |
| Sep | 9 | calm |
| Oct | 7 | calm |
| Nov | 7 | calm |
| Dec | 6 | calm |
Best time to visit Īstgāh-e Rāh Āhan-e Garmsār
To characterize how pleasant the weather is in Īstgāh-e Rāh Āhan-e Garmsār throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late April, Īstgāh-e Rāh Āhan-e Garmsār is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best times of year to visit Īstgāh-e Rāh Āhan-e Garmsār for general outdoor tourist activities run from late March to early May and again from late September to early November, with a peak score in the third week of October.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 2.5 | 3.9 | 6.5 | 8.0 | 6.2 | 2.8 | 1.2 | 2.2 | 5.2 | 8.4 | 6.1 | 3.2 |
| Rating | poor | fair | good | ideal | good | poor | poor | poor | fair | ideal | good | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 2.5 | poor |
| Feb | 3.9 | fair |
| Mar | 6.5 | good |
| Apr | 8.0 | ideal |
| May | 6.2 | good |
| Jun | 2.8 | poor |
| Jul | 1.2 | poor |
| Aug | 2.2 | poor |
| Sep | 5.2 | fair |
| Oct | 8.4 | ideal |
| Nov | 6.1 | good |
| Dec | 3.2 | poor |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Īstgāh-e Rāh Āhan-e Garmsār for hot-weather activities run from late April to early June and again from early September to late October, with a peak score in the last week of September.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for Īstgāh-e Rāh Āhan-e Garmsār, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
For a warm-season trip around July (highs near 38°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 10°C), pack a warm layer.
In July, Īstgāh-e Rāh Āhan-e Garmsār sees daytime highs around 38°C and nights near 27°C. Pack light clothes and sun protection.
UV index (midday) in Īstgāh-e Rāh Āhan-e Garmsār by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
Under clear skies, the midday UV index in Īstgāh-e Rāh Āhan-e Garmsār peaks around July 18 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 4 | 7 | 9 | 9 | 10 | 10 | 8 | 6 | 3 | 3 |
| Level | Moderate | Moderate | Moderate | Very high | Very high | Very high | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 4 | Moderate |
| Apr | 7 | Very high |
| May | 9 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Extreme |
| Aug | 10 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 3 | Moderate |
Average hourly UV index in Īstgāh-e Rāh Āhan-e Garmsār
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in July the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 0 | 4.5 | 4.5 | 7 | 8 | 8.5 | 8.5 | 8 | 6.5 | 5.5 | 2.5 | 0 |
| UV ≥ 6 (h/day) | 0 | 0 | 0 | 3.5 | 5 | 5.5 | 6 | 5.5 | 3.5 | 0 | 0 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 4.5 | 0 |
| Mar | 4.5 | 0 |
| Apr | 7 | 3.5 |
| May | 8 | 5 |
| Jun | 8.5 | 5.5 |
| Jul | 8.5 | 6 |
| Aug | 8 | 5.5 |
| Sep | 6.5 | 3.5 |
| Oct | 5.5 | 0 |
| Nov | 2.5 | 0 |
| Dec | 0 | 0 |
Air quality in Īstgāh-e Rāh Āhan-e Garmsār by month
Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.
Air quality in Īstgāh-e Rāh Āhan-e Garmsār is worst in December — around 73 µg/m³ PM2.5 (unhealthy), about 2.6× the cleanest month (July, 28 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 69 | 64 | 56 | 56 | 47 | 32 | 28 | 29 | 39 | 49 | 62 | 73 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Moderate | Moderate | Moderate | Poor | Poor | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 69 | Unhealthy |
| Feb | 64 | Unhealthy |
| Mar | 56 | Unhealthy |
| Apr | 56 | Unhealthy |
| May | 47 | Poor |
| Jun | 32 | Moderate |
| Jul | 28 | Moderate |
| Aug | 29 | Moderate |
| Sep | 39 | Poor |
| Oct | 49 | Poor |
| Nov | 62 | Unhealthy |
| Dec | 73 | Unhealthy |
Growing season
The growing season in Īstgāh-e Rāh Āhan-e Garmsār typically lasts about 356 days, from around January 22 to January 12 — the span where a frost-free day is more likely than not. It is reliably frost-free from March 5 to November 29.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 52 | 72 | 95 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 97 | 74 |
| Frost nights | 31 | 28 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 31 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 52 | 31 |
| Feb | 72 | 28 |
| Mar | 95 | 3 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 97 | 2 |
| Dec | 74 | 31 |
Growing degree days
Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Īstgāh-e Rāh Āhan-e Garmsār banks about 3,542 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 0 | 0 | 73 | 253 | 447 | 593 | 696 | 643 | 485 | 293 | 58 | 0 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 73 |
| Apr | 253 |
| May | 447 |
| Jun | 593 |
| Jul | 696 |
| Aug | 643 |
| Sep | 485 |
| Oct | 293 |
| Nov | 58 |
| Dec | 0 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
Īstgāh-e Rāh Āhan-e Garmsār receives about 5.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.8 and 8.0 kWh/m².
The brighter stretch of the year lasts 6.3 months, from around Mar 21 to Sep 27. The brightest month is June, averaging about 8.0 kWh/m² (intense).
The dimmest month is December, down near 2.8 kWh/m² — roughly 64% less than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.2 | 4.2 | 5.4 | 6.6 | 7.5 | 8.0 | 7.8 | 7.3 | 6.2 | 4.7 | 3.3 | 2.8 |
| Level | Moderate | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 3.2 | Moderate |
| Feb | 4.2 | Bright |
| Mar | 5.4 | Bright |
| Apr | 6.6 | Intense |
| May | 7.5 | Intense |
| Jun | 8.0 | Intense |
| Jul | 7.8 | Intense |
| Aug | 7.3 | Intense |
| Sep | 6.2 | Intense |
| Oct | 4.7 | Bright |
| Nov | 3.3 | Moderate |
| Dec | 2.8 | Moderate |
Where is Īstgāh-e Rāh Āhan-e Garmsār?
Īstgāh-e Rāh Āhan-e Garmsār sits at 35.2°N, 52.3°E, 848 m above sea level, in Iran. The nearest listed city is Garmsār, 3.0 km away.
Topography around Īstgāh-e Rāh Āhan-e Garmsār
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Īstgāh-e Rāh Āhan-e Garmsār.
Within 3 km, the terrain around Īstgāh-e Rāh Āhan-e Garmsār has only modest variations in elevation — a maximum elevation change of 110 m around an average of 851 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,431 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,171 m.
The land around Īstgāh-e Rāh Āhan-e Garmsār is covered by bare terrain (62%) and cropland (21%) within 3 km, bare terrain (74%) and cropland (23%) within 16 km, and bare terrain (68%) and grassland (21%) within 80 km.
Iran travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / F
- 220 V · 50 Hz
- Prices
- ≈ 352% of US
- price level, 2025
- GDP per capita
- $3,924
- 2025
- Happiness
- 5.2 / 10
- World Happiness, 2025
- Safe drinking water
- 94%
- of population, 2024
- Homicide rate
- 2.4
- per 100k, 2014
- Road deaths
- 21.5
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 492
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Īstgāh-e Rāh Āhan-e Garmsār (35.2345°, 52.3094°, elevation 848 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).