Semīrom in Summer
In summer (June, July and August), Semīrom sees average daytime highs around 29°C and overnight lows near 13°C, with 2 mm of rain over about 0 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 25°C in early June to 28°C by late August. The sky is clear or mostly clear about 79% of the time across summer, and the air most often feels dry.
Summer is Semīrom's best season of the year to visit on our travel score. For the whole year in context, see Semīrom's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 2 mm
- 0 wet days
- Avg wind
- 8 km/h
- Travel score
- 7.4
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Semīrom in Summer
Over the season highs climb from about 25°C in early June to 28°C by late August.
A typical summer day in Semīrom reaches about 29°C and drops to 13°C overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Semīrom
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Semīrom weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 1° / -9° | 63 | 6.8 | 6.9 | 10.2 | 0.0 |
| Feb | 3° / -8° | 52 | 6.2 | 5.7 | 10.9 | 0.0 |
| Mar | 9° / -3° | 52 | 6.8 | 3.5 | 11.8 | 1.9 |
| Apr | 15° / 3° | 28 | 5.5 | 0.3 | 12.7 | 5.3 |
| May | 21° / 8° | 8 | 2.3 | 0 | 13.6 | 8.2 |
| Jun | 27° / 12° | 1 | 0.2 | 0 | 14 | 8.4 |
| Jul | 30° / 15° | 1 | 0.2 | 0 | 13.8 | 6.5 |
| Aug | 29° / 13° | 0 | 0 | 0 | 13.1 | 7.2 |
| Sep | 26° / 10° | 0 | 0.1 | 0 | 12.2 | 9.2 |
| Oct | 20° / 5° | 3 | 1.1 | 0 | 11.2 | 8.2 |
| Nov | 12° / -1° | 32 | 4.1 | 1.3 | 10.4 | 3.7 |
| Dec | 5° / -6° | 48 | 5.5 | 4.7 | 10 | 0.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 79% of the time across summer.
Chance of precipitation in Summer
Semīrom gets around 2 mm of rain over 0 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 54 min in early June to 12 h 42 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.6 kWh/m².
Is summer a good time to visit Semīrom?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is one of the better times to visit Semīrom for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Semīrom in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Semīrom sees daytime highs around 29°C and nights near 13°C. Pack light clothes and sun protection.
UV index in Semīrom in Summer
Clear-sky midday UV across summer averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Semīrom peaks around July 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 7 | 8 | 8 | 12 | 12 | 13 | 12 | 9 | 8 | 5 | 4 |
| Level | Moderate | High | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 7 | High |
| Mar | 8 | Very high |
| Apr | 8 | Very high |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 13 | Extreme |
| Aug | 12 | Extreme |
| Sep | 9 | Very high |
| Oct | 8 | Very high |
| Nov | 5 | High |
| Dec | 4 | Moderate |
Air quality in Semīrom in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Semīrom is worst in April — around 35 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (August, 19 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) | 23 | 25 | 30 | 35 | 32 | 22 | 25 | 19 | 23 | 24 | 21 | 20 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 23 | Moderate |
| Feb | 25 | Moderate |
| Mar | 30 | Moderate |
| Apr | 35 | Moderate |
| May | 32 | Moderate |
| Jun | 22 | Moderate |
| Jul | 25 | Moderate |
| Aug | 19 | Moderate |
| Sep | 23 | Moderate |
| Oct | 24 | Moderate |
| Nov | 21 | Moderate |
| Dec | 20 | Moderate |
Where is Semīrom?
Semīrom sits at 31.4°N, 51.6°E, 2,425 m above sea level, in Iran. The nearest listed city is Dehāqān, 59 km away.
Topography around Semīrom
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Semīrom.
Within 3 km, the terrain around Semīrom has large variations in elevation — a maximum elevation change of 735 m around an average of 2,512 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,409 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,302 m.
The land around Semīrom is covered by grassland (33%), cropland (29%) and bare terrain (20%) within 3 km, grassland (48%), cropland (29%) and bare terrain (22%) within 16 km, and bare terrain (47%) and grassland (34%) 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 Semīrom (31.4167°, 51.5667°, elevation 2,425 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.