Climate and average weather in Zheleznogorsk-Ilimskiy
In Zheleznogorsk-Ilimskiy, the summers are warm, showery, and partly cloudy and the winters are frigid, snowy, and mostly cloudy.
Over the course of the year, the temperature in Zheleznogorsk-Ilimskiy typically varies from -26°C to 23°C, and is rarely below -40°C or above 29°C. July is the hottest month of the year, while January is the coldest.
Based on the travel score, the best time of year to visit Zheleznogorsk-Ilimskiy for warm-weather activities is from late May to late August.
- Hottest
- Jul
- 23°
- Coldest
- Jan
- -26°
- Wettest
- Aug
- 69 mm
- Driest
- Feb
- 13 mm
- Rain / yr
- 455 mm
- 108 wet days
- Daylight
- 6.5–17.5 h
- shortest–longest
- Elevation
- 392 m
- 56.6°N
- Clearest
- Jun
- 65% cloud
Zheleznogorsk-Ilimskiy is human settlement in Nizhneilimsky District, Irkutsk Oblast, Russia.
- Density
- 279/km²
- people per km²
- Founded
- 1948
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Zheleznogorsk-Ilimskiy 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 May to late August.
Temperature through the year
Daily average highs and lows in Zheleznogorsk-Ilimskiy, 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 13 to September 13, with daily high temperatures above 13°C. The hottest month of the year in Zheleznogorsk-Ilimskiy is July, with an average high of 23°C and low of 13°C.
The cool season lasts 3.2 months, from November 18 to February 22, with daily high temperatures below -11°C. The coldest month of the year in Zheleznogorsk-Ilimskiy is January, with an average low of -26°C and high of -19°C.
Days typically run about 10°C warmer than nights, with the widest day–night swing (around 12°C) in June.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | -18 | -13 | -4 | 5 | 14 | 21 | 23 | 20 | 12 | 2 | -9 | -17 |
| Avg low (°C) | -26 | -23 | -15 | -6 | 2 | 9 | 13 | 10 | 3 | -5 | -17 | -24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | -18 | -26 |
| Feb | -13 | -23 |
| Mar | -4 | -15 |
| Apr | 5 | -6 |
| May | 14 | 2 |
| Jun | 21 | 9 |
| Jul | 23 | 13 |
| Aug | 20 | 10 |
| Sep | 12 | 3 |
| Oct | 2 | -5 |
| Nov | -9 | -17 |
| Dec | -17 | -24 |
How hot and cold Zheleznogorsk-Ilimskiy 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 coldest nights, wind chill pulls the feels-like down to about -34°C (around January 6), with roughly 246 freezing days a year (feels-like at or below 0°C) — 184 of them bitterly cold — worst in January.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | -18 | -13 | -4 | 5 | 14 | 21 | 23 | 20 | 12 | 2 | -9 | -17 |
| Air high (°C) | -18 | -13 | -4 | 5 | 14 | 21 | 23 | 20 | 12 | 2 | -9 | -17 |
| Feels-like low (°C) | -34 | -30 | -21 | -11 | -1 | 8 | 13 | 9 | 0 | -10 | -24 | -33 |
| Air low (°C) | -26 | -23 | -15 | -6 | 2 | 9 | 13 | 10 | 3 | -5 | -17 | -24 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | -18 | -18 | -34 | -26 |
| Feb | -13 | -13 | -30 | -23 |
| Mar | -4 | -4 | -21 | -15 |
| Apr | 5 | 5 | -11 | -6 |
| May | 14 | 14 | -1 | 2 |
| Jun | 21 | 21 | 8 | 9 |
| Jul | 23 | 23 | 13 | 13 |
| Aug | 20 | 20 | 9 | 10 |
| Sep | 12 | 12 | 0 | 3 |
| Oct | 2 | 2 | -10 | -5 |
| Nov | -9 | -9 | -24 | -17 |
| Dec | -17 | -17 | -33 | -24 |
Average hourly temperature in Zheleznogorsk-Ilimskiy
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 23°C, and coldest before dawn in January, near -26°C.
Zheleznogorsk-Ilimskiy 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 | -19° / -26° | 15 | 5.7 | 9 | 7.2 | 0.0 |
| Feb | -13° / -23° | 13 | 4.7 | 7.2 | 9.1 | 0.0 |
| Mar | -4° / -15° | 18 | 5.8 | 8.5 | 11.4 | 0.0 |
| Apr | 5° / -6° | 27 | 8.3 | 6.4 | 13.9 | 0.4 |
| May | 14° / 2° | 45 | 11.5 | 1.9 | 16.1 | 3.7 |
| Jun | 21° / 9° | 57 | 11 | 0 | 17.3 | 6.2 |
| Jul | 23° / 13° | 67 | 11.4 | 0 | 16.8 | 6.6 |
| Aug | 20° / 10° | 69 | 11.4 | 0 | 14.9 | 6.1 |
| Sep | 12° / 3° | 53 | 11.6 | 1.2 | 12.5 | 3.0 |
| Oct | 2° / -5° | 38 | 10.2 | 8.7 | 10 | 0.1 |
| Nov | -10° / -17° | 30 | 9.3 | 12 | 7.9 | 0.0 |
| Dec | -17° / -24° | 23 | 7.5 | 11 | 6.6 | 0.0 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Zheleznogorsk-Ilimskiy gets about 455 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.
The wetter season lasts 6.8 months, from around Apr 20 to Nov 12, peaking in September at about 40% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 2.
August is the wettest month by volume, with 69 mm over about 11 wet days; February is the driest, with 13 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 (%) | 18 | 17 | 19 | 28 | 37 | 37 | 36 | 37 | 38 | 34 | 30 | 25 |
| Rain days | 6 | 5 | 6 | 8 | 12 | 11 | 11 | 11 | 12 | 10 | 9 | 8 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 18 | 6 |
| Feb | 17 | 5 |
| Mar | 19 | 6 |
| Apr | 28 | 8 |
| May | 37 | 12 |
| Jun | 37 | 11 |
| Jul | 36 | 11 |
| Aug | 37 | 11 |
| Sep | 38 | 12 |
| Oct | 34 | 10 |
| Nov | 30 | 9 |
| Dec | 25 | 8 |
Monthly rainfall
Over a full year, Zheleznogorsk-Ilimskiy collects about 455 mm of rain across 108 wet days — roughly 38 mm in an average month.
It doesn’t fall evenly. August is the wettest month with 69 mm, while February is the driest at just 13 mm. The three wettest months alone bring about 42% 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) | 15 | 13 | 18 | 27 | 45 | 57 | 67 | 69 | 53 | 38 | 30 | 23 |
| Rain days | 6 | 5 | 6 | 8 | 12 | 11 | 11 | 11 | 12 | 10 | 9 | 8 |
| Snow days | 9 | 7 | 9 | 6 | 2 | 0 | 0 | 0 | 1 | 9 | 12 | 11 |
| Rainfall (mm) | Rain days | Snow days | |
|---|---|---|---|
| Jan | 15 | 6 | 9 |
| Feb | 13 | 5 | 7 |
| Mar | 18 | 6 | 9 |
| Apr | 27 | 8 | 6 |
| May | 45 | 12 | 2 |
| Jun | 57 | 11 | 0 |
| Jul | 67 | 11 | 0 |
| Aug | 69 | 11 | 0 |
| Sep | 53 | 12 | 1 |
| Oct | 38 | 10 | 9 |
| Nov | 30 | 9 | 12 |
| Dec | 23 | 8 | 11 |
Snow in Zheleznogorsk-Ilimskiy
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.
Zheleznogorsk-Ilimskiy averages about 66 snowy days a year. Snow season runs roughly Sep 7 to May 28 — about 8.7 months.
November is snowiest, with roughly 12 days of snow and an estimated 35 cm of snowfall. Over the year that adds up to an estimated 195 cm of snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snow days | 9 | 7 | 9 | 6 | 2 | 0 | 0 | 0 | 1 | 9 | 12 | 11 |
| Snowfall (cm) | 23 | 22 | 24 | 22 | 4 | 0 | 0 | 0 | 4 | 26 | 35 | 35 |
| Snow days | Snowfall (cm) | |
|---|---|---|
| Jan | 9 | 23 |
| Feb | 7 | 22 |
| Mar | 9 | 24 |
| Apr | 6 | 22 |
| May | 2 | 4 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 0 | 0 |
| Sep | 1 | 4 |
| Oct | 9 | 26 |
| Nov | 12 | 35 |
| Dec | 11 | 35 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Zheleznogorsk-Ilimskiy, 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 13 and lasts for 4.4 months, ending around September 24. The clearest month is June, when the sky is clear, mostly clear, or partly cloudy 40% of the time on average.
The cloudier part of the year begins around September 25 and lasts for 5.9 months, ending around March 22. The cloudiest month is November, when it is overcast or mostly cloudy 86% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 17 | 21 | 24 | 23 | 28 | 40 | 40 | 38 | 27 | 19 | 14 | 14 |
| Cloudier (%) | 83 | 79 | 76 | 77 | 72 | 60 | 60 | 62 | 73 | 81 | 86 | 86 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 17 | 83 |
| Feb | 21 | 79 |
| Mar | 24 | 76 |
| Apr | 23 | 77 |
| May | 28 | 72 |
| Jun | 40 | 60 |
| Jul | 40 | 60 |
| Aug | 38 | 62 |
| Sep | 27 | 73 |
| Oct | 19 | 81 |
| Nov | 14 | 86 |
| Dec | 14 | 86 |
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 18, brings about 17 h 30 min of light; the shortest, around December 18, only 6 h 30 min — a swing of roughly 11 hours.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 7.2 | 9.1 | 11.4 | 13.9 | 16.1 | 17.3 | 16.8 | 14.9 | 12.5 | 10.0 | 7.9 | 6.6 |
| Sunrise (AM) | 9:38 | 8:45 | 7:31 | 6:06 | 4:56 | 4:21 | 4:42 | 5:40 | 6:44 | 7:47 | 8:55 | 9:43 |
| Sunset (PM) | 4:48 | 5:51 | 6:55 | 8:01 | 9:03 | 9:47 | 9:36 | 8:35 | 7:12 | 5:50 | 4:42 | 4:17 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 7.2 | 9:38 | 4:48 |
| Feb | 9.1 | 8:45 | 5:51 |
| Mar | 11.4 | 7:31 | 6:55 |
| Apr | 13.9 | 6:06 | 8:01 |
| May | 16.1 | 4:56 | 9:03 |
| Jun | 17.3 | 4:21 | 9:47 |
| Jul | 16.8 | 4:42 | 9:36 |
| Aug | 14.9 | 5:40 | 8:35 |
| Sep | 12.5 | 6:44 | 7:12 |
| Oct | 10.0 | 7:47 | 5:50 |
| Nov | 7.9 | 8:55 | 4:42 |
| Dec | 6.6 | 9:43 | 4:17 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Zheleznogorsk-Ilimskiy averages about 4 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 8 days.
The sunnier stretch runs 4.1 months, from around May 22 to Sep 22. The sunniest month is August, with roughly 7 sunny days (gloomy).
The greyest month is November, down near 3 sunny days — about 58% fewer than the August peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 3 | 4 | 5 | 4 | 4 | 6 | 7 | 7 | 5 | 3 | 3 | 3 |
| Sky | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 3 | Gloomy |
| Feb | 4 | Gloomy |
| Mar | 5 | Gloomy |
| Apr | 4 | Gloomy |
| May | 4 | Gloomy |
| Jun | 6 | Gloomy |
| Jul | 7 | Gloomy |
| Aug | 7 | Gloomy |
| Sep | 5 | Gloomy |
| Oct | 3 | Gloomy |
| Nov | 3 | Gloomy |
| Dec | 3 | Gloomy |
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 Zheleznogorsk-Ilimskiy, the air stays dry or comfortable essentially all year. Even in July, the muggiest month, it feels humid or worse only about 14% 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 | 83 | 57 | 79 | 99 | 100 | 100 | 100 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 14 | 29 | 18 | 1 | 0 | 0 | 0 |
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 4 | 14 | 3 | 0 | 0 | 0 | 0 |
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| Jan | 100 | 0 | 0 | 0 |
| Feb | 100 | 0 | 0 | 0 |
| Mar | 100 | 0 | 0 | 0 |
| Apr | 100 | 0 | 0 | 0 |
| May | 100 | 0 | 0 | 0 |
| Jun | 83 | 14 | 4 | 0 |
| Jul | 57 | 29 | 14 | 1 |
| Aug | 79 | 18 | 3 | 0 |
| Sep | 99 | 1 | 0 | 0 |
| Oct | 100 | 0 | 0 | 0 |
| Nov | 100 | 0 | 0 | 0 |
| Dec | 100 | 0 | 0 | 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 Zheleznogorsk-Ilimskiy is typically calm, near 10 km/h, and varies little with the seasons.
The windier part of the year lasts 3.4 months, from around Feb 16 to May 30. The windiest month is April, averaging about 12 km/h (calm).
The calmer part of the year runs from around May 31 to Sep 25, with July the calmest month at about 8 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 10 | 10 | 11 | 12 | 11 | 9 | 8 | 9 | 10 | 11 | 11 | 11 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 10 | calm |
| Feb | 10 | calm |
| Mar | 11 | calm |
| Apr | 12 | calm |
| May | 11 | calm |
| Jun | 9 | calm |
| Jul | 8 | calm |
| Aug | 9 | calm |
| Sep | 10 | calm |
| Oct | 11 | calm |
| Nov | 11 | calm |
| Dec | 11 | calm |
Best time to visit Zheleznogorsk-Ilimskiy
To characterize how pleasant the weather is in Zheleznogorsk-Ilimskiy throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late August, Zheleznogorsk-Ilimskiy 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 time of year to visit Zheleznogorsk-Ilimskiy for general outdoor tourist activities is from late May to late August, with a peak score in the second week of July.
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) | 0.0 | 0.0 | 0.0 | 0.5 | 3.7 | 6.2 | 6.6 | 6.0 | 3.0 | 0.2 | 0.0 | 0.0 |
| Rating | poor | poor | poor | poor | fair | good | good | good | poor | poor | poor | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 0.0 | poor |
| Feb | 0.0 | poor |
| Mar | 0.0 | poor |
| Apr | 0.5 | poor |
| May | 3.7 | fair |
| Jun | 6.2 | good |
| Jul | 6.6 | good |
| Aug | 6.0 | good |
| Sep | 3.0 | poor |
| Oct | 0.2 | poor |
| Nov | 0.0 | poor |
| Dec | 0.0 | poor |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Zheleznogorsk-Ilimskiy for hot-weather activities is from late June to mid August, with a peak score in the third week of July.
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 Zheleznogorsk-Ilimskiy, 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 23°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near -19°C), pack a warm layer and a heavy coat.
In July, Zheleznogorsk-Ilimskiy sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.
UV index (midday) in Zheleznogorsk-Ilimskiy 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 Zheleznogorsk-Ilimskiy peaks around June 20 at about 6 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 0 | 1 | 2 | 4 | 5 | 6 | 5 | 5 | 3 | 1 | 1 | 0 |
| Level | Low | Low | Low | Moderate | Moderate | High | High | Moderate | Moderate | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 0 | Low |
| Feb | 1 | Low |
| Mar | 2 | Low |
| Apr | 4 | Moderate |
| May | 5 | Moderate |
| Jun | 6 | High |
| Jul | 5 | High |
| Aug | 5 | Moderate |
| Sep | 3 | Moderate |
| Oct | 1 | Low |
| Nov | 1 | Low |
| Dec | 0 | Low |
Average hourly UV index in Zheleznogorsk-Ilimskiy
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 June the burn window is concentrated in the middle of the day: about 7.5 hours a day reach index 3 (protection recommended). 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 | 0 | 0 | 3.5 | 6 | 7.5 | 7 | 6 | 1 | 0 | 0 | 0 |
| UV ≥ 6 (h/day) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 0 | 0 |
| Mar | 0 | 0 |
| Apr | 3.5 | 0 |
| May | 6 | 0 |
| Jun | 7.5 | 0 |
| Jul | 7 | 0 |
| Aug | 6 | 0 |
| Sep | 1 | 0 |
| Oct | 0 | 0 |
| Nov | 0 | 0 |
| Dec | 0 | 0 |
Air quality in Zheleznogorsk-Ilimskiy 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 Zheleznogorsk-Ilimskiy is worst in July — around 44 µg/m³ PM2.5 (poor), about 37.0× the cleanest month (December, 1 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) | 3 | 4 | 5 | 8 | 11 | 24 | 44 | 26 | 25 | 12 | 3 | 1 |
| Level | Good | Good | Good | Good | Good | Moderate | Poor | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 3 | Good |
| Feb | 4 | Good |
| Mar | 5 | Good |
| Apr | 8 | Good |
| May | 11 | Good |
| Jun | 24 | Moderate |
| Jul | 44 | Poor |
| Aug | 26 | Moderate |
| Sep | 25 | Moderate |
| Oct | 12 | Good |
| Nov | 3 | Good |
| Dec | 1 | Good |
Growing season
The growing season in Zheleznogorsk-Ilimskiy typically lasts about 141 days, from around May 9 to September 26 — the span where a frost-free day is more likely than not. It is reliably frost-free from May 28 to September 8.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 0 | 0 | 2 | 15 | 67 | 99 | 100 | 100 | 75 | 17 | 4 | 1 |
| Frost nights | 31 | 28 | 31 | 30 | 27 | 0 | 0 | 0 | 22 | 31 | 30 | 31 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 0 | 31 |
| Feb | 0 | 28 |
| Mar | 2 | 31 |
| Apr | 15 | 30 |
| May | 67 | 27 |
| Jun | 99 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 75 | 22 |
| Oct | 17 | 31 |
| Nov | 4 | 30 |
| Dec | 1 | 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. Zheleznogorsk-Ilimskiy banks about 578 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 | 0 | 0 | 6 | 158 | 247 | 162 | 5 | 0 | 0 | 0 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 0 |
| Apr | 0 |
| May | 6 |
| Jun | 158 |
| Jul | 247 |
| Aug | 162 |
| Sep | 5 |
| Oct | 0 |
| Nov | 0 |
| 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.
Zheleznogorsk-Ilimskiy receives about 3.1 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.4 and 6.0 kWh/m².
The brighter stretch of the year lasts 5.9 months, from around Mar 17 to Sep 11. The brightest month is June, averaging about 6.0 kWh/m² (bright).
The dimmest month is December, down near 0.5 kWh/m² — roughly 92% less than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 0.7 | 1.5 | 3.1 | 4.7 | 5.7 | 6.0 | 5.6 | 4.5 | 2.9 | 1.6 | 0.8 | 0.5 |
| Level | Dim | Dim | Moderate | Bright | Bright | Bright | Bright | Bright | Moderate | Dim | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 0.7 | Dim |
| Feb | 1.5 | Dim |
| Mar | 3.1 | Moderate |
| Apr | 4.7 | Bright |
| May | 5.7 | Bright |
| Jun | 6.0 | Bright |
| Jul | 5.6 | Bright |
| Aug | 4.5 | Bright |
| Sep | 2.9 | Moderate |
| Oct | 1.6 | Dim |
| Nov | 0.8 | Dim |
| Dec | 0.5 | Dim |
Where is Zheleznogorsk-Ilimskiy?
Zheleznogorsk-Ilimskiy sits at 56.6°N, 104.1°E, 392 m above sea level, in Russia. The nearest listed city is Ust’-Kut, 104 km away.
Topography around Zheleznogorsk-Ilimskiy
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Zheleznogorsk-Ilimskiy.
Within 3 km, the terrain around Zheleznogorsk-Ilimskiy has significant variations in elevation — a maximum elevation change of 579 m around an average of 489 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 609 m; within 80 km, large variations in elevation — a maximum elevation change of 821 m.
The land around Zheleznogorsk-Ilimskiy is covered by trees (71%) within 3 km, trees (91%) within 16 km, and trees (97%) within 80 km.
Russia travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 32% of US
- price level, 2025
- GDP per capita
- $17,547
- 2025
- Happiness
- 5.8 / 10
- World Happiness, 2025
- Safe drinking water
- 76%
- of population, 2024
- Homicide rate
- 6.8
- per 100k, 2021
- Road deaths
- 12
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 521
- 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 Zheleznogorsk-Ilimskiy (56.5767°, 104.1297°, elevation 392 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).