10-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Mainly clear
-2°
Feels like -6°
Wind↑ SE 9 km/h
Gusts31 km/h
Humidity 93 %
Afternoon
Partly cloudy
2°
Feels like 0°
Wind↑ NW 5 km/h
Gusts11 km/h
Humidity 79 %
11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Mainly clear
-6°
Feels like -6°
Wind↑ W 4 km/h
Humidity 98 %
Afternoon
Overcast
-1°
Feels like -1°
Wind↑ WNW 2 km/h
Humidity 93 %
💧 0.1 mm
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Overcast
-2°
Feels like -2°
Wind↑ ESE 4 km/h
Humidity 97 %
Afternoon
Clear sky
3°
Feels like 1°
Wind↑ SE 10 km/h
Gusts26 km/h
Humidity 82 %
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Light snow
-1°
Feels like -6°
Wind↑ WNW 18 km/h
Gusts44 km/h
Humidity 96 %
💧 0.2 mm
Afternoon
Mainly clear
0°
Feels like 0°
Wind↑ E 4 km/h
Humidity 75 %
Irkutsk forecast in charts · next 7 days
The week ahead: highs and lows
▼ This week runs -3.0° cooler than usual
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Irkutsk climate: what a normal year looks like
Nights typically freeze from October to April, the coldest averaging −25 °C in January.
The hottest stretch is July, when afternoons average 23 °C; the coldest is January, when nights average −25 °C. Between those two months the average temperature changes by 39 °C.
From 16 h 47 min of daylight in late June to 7 h 41 min in late December.
A normal year brings roughly 490 mm of rain — less than 87% of the towns of 20,000+ people we compared it with.
Forecast highs for the coming week average −3 °C, 10 °C cooler than a normal October (7 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
−16 °C
−25 °C
11 mm
Feb
−10 °C
−21 °C
10 mm
Mar
0 °C
−12 °C
15 mm
Apr
9 °C
−2 °C
26 mm
May
17 °C
5 °C
42 mm
Jun
22 °C
10 °C
68 mm
Jul
23 °C
14 °C
95 mm
Aug
21 °C
13 °C
101 mm
Sep
14 °C
6 °C
63 mm
Oct
7 °C
−2 °C
26 mm
Nov
−5 °C
−12 °C
18 mm
Dec
−13 °C
−21 °C
16 mm
Whole year
6 °C
−4 °C
490 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 52.30° N, 104.29° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Irkutsk: pollution and pollen
1/6
Good
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.50µg/m³
PM100µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Irkutsk
Rain observed over the last two hours by official weather radars around Irkutsk, followed by the radar forecast for the next hour where the weather service provides one.
Rain radarLast two hours, then forecast where available · drag the timeline
No open weather radar covers Irkutsk yet: the map shows our hour-by-hour rain forecast (ICON, GFS).
Moon over Irkutsk
Waning gibbous
79 % illuminated · 19.3 days
Rise 17:09 Set 10:17
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Wed11/113%
Moonrise and moonset in local time (Asia/Irkutsk); phase and lit fraction from a synodic calculation.
Look up a past day in Irkutsk
Curious about the weather in Irkutsk on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Irkutsk weather at a glance
This page gathers everything about the weather in Irkutsk, Irkutsk Oblast: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “clear sky”, it is -12 °C (feels like -12 °C) and the wind blows at 2 km/h.
Expected range today: -11 °C to -3 °C and a dry sky. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.
Use the Irkutsk forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
