Irkutsk in Spring

In spring (March, April and May), Irkutsk sees average daytime highs around 8°C and overnight lows near -4°C, with 71 mm of precipitation over about 18 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.

Over the season highs climb from about -5°C in early March to 18°C by late May. The sky is clear or mostly clear about 27% of the time across spring, and the air most often feels dry.

Spring is Irkutsk's 2nd-best season to visit on our travel score. For the whole year in context, see Irkutsk's year-round climate.

Avg daytime high: 8°C; 2nd-warmest season
Avg overnight low: -4°C
Precipitation: 71 mm; 18 wet days
Avg wind: 10 km/h
Travel score: 2.2; 2nd-best season
Months: Mar · Apr · May

← Winter Irkutsk year-round climate Summer →

Spring Summer Fall Winter

Temperature in Irkutsk in Spring

Average highAverage lowShaded bands: 10–90% of days

Over the season highs climb from about -5°C in early March to 18°C by late May.

A typical spring day in Irkutsk reaches about 8°C and drops to -4°C overnight. The warmest of the three months is May, the coolest March.

How spring really feels in Irkutsk

Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 73 that feel at or below 0°C.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

33 feel bitter (≤ -10°C)

The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.

Irkutsk weather by month

How the three spring months (March, April and May) 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	-15° / -24°	5	1.8	3.3	8	0.0
Feb	-10° / -21°	5	1.8	3.2	9.5	0.0
Mar	-0° / -13°	10	3.4	4.4	11.5	0.0
Apr	9° / -3°	22	5.7	3.6	13.6	1.7
May	16° / 4°	38	8.9	1.4	15.4	5.0
Jun	21° / 10°	65	10.3	0	16.4	6.4
Jul	23° / 14°	94	12.2	0	16	6.5
Aug	21° / 12°	101	11.6	0	14.5	6.3
Sep	15° / 6°	61	10.2	0.6	12.4	4.6
Oct	7° / -2°	23	5.7	3.9	10.3	1.1
Nov	-4° / -11°	13	4	5.3	8.5	0.0
Dec	-13° / -20°	10	3.5	5.2	7.5	0.0

Cloud cover in Spring

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time across spring.

Chance of precipitation in Spring

Any precipitationSnow

Irkutsk gets around 71 mm of rain and snow over 18 wet days across spring. The line is the day-by-day chance of measurable precipitation.

Humidity in Spring

DryComfortableHumidMuggyOppressiveMiserable

Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

Wind in Spring

Winds average 10 km/h across spring.

Sunrise & sunset in Spring

DaylightNight

Daylight runs from about 10 h 30 min in early March to 16 h 06 min by late May. The lit band spans sunrise to sunset each day.

Solar energy in Spring

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across spring, about 5.0 kWh/m².

Planning a trip in spring

Is spring a good time to visit Irkutsk?

Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

2.2

Sightseeing

2nd-best month of the year

0.3

Beach & pool

2nd-best month of the year

spring is a weaker month for outdoor sightseeing in Irkutsk.

What to pack for Irkutsk in Spring

From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In spring, Irkutsk sees daytime highs around 8°C and nights near -4°C. Pack a warm layer, a heavy coat and sun protection. Worth having: rain gear. About 18 days see rain.

a warm layera heavy coatsun protectionrain gear

UV index in Irkutsk in Spring

LowModerateHighVery highExtreme

Clear-sky midday UV across spring averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Irkutsk peaks around July 12 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (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)	1	1	2	5	5	6	7	5	4	2	1	1
Level	Low	Low	Moderate	Moderate	High	High	High	Moderate	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	1	Low
Mar	2	Moderate
Apr	5	Moderate
May	5	High
Jun	6	High
Jul	7	High
Aug	5	Moderate
Sep	4	Moderate
Oct	2	Low
Nov	1	Low
Dec	1	Low

Air quality in Irkutsk in Spring

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.

Air quality in Irkutsk is worst in May — around 22 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 10 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)	15	15	13	17	22	16	18	18	11	12	10	12
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	15	Moderate
Feb	15	Moderate
Mar	13	Moderate
Apr	17	Moderate
May	22	Moderate
Jun	16	Moderate
Jul	18	Moderate
Aug	18	Moderate
Sep	11	Good
Oct	12	Good
Nov	10	Good
Dec	12	Good

Location & terrain

Where is Irkutsk?

Irkutsk sits at 52.3°N, 104.3°E, 415 m above sea level, in Russia. The nearest listed city is Markova, 11 km away.

Topography around Irkutsk

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Irkutsk.

Within 3 km, the terrain around Irkutsk has only modest variations in elevation — a maximum elevation change of 104 m around an average of 442 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 204 m; within 80 km, large variations in elevation — a maximum elevation change of 1,089 m.

The land around Irkutsk is covered by artificial surfaces (54%) and trees (27%) within 3 km, trees (58%) within 16 km, and trees (69%) within 80 km.

3 km

104 m

artificial surfaces 54%

16 km

204 m

trees 58%

80 km

1,089 m

trees 69%

treesgrasslandcroplandartificial surfacesbare terrainwater

← Winter Irkutsk year-round climate Summer →

Spring weather nearby: Markova 11 km · Shelekhov 16 km · Angarsk 39 km · Usol’ye-Sibirskoye 67 km · Slyudyanka 81 km · Baykal’sk 87 km · Cheremkhovo 125 km · Gusinoozyorsk 189 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 Irkutsk (52.2957°, 104.2908°, elevation 415 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.