Climate Insights for Bol’shaya Rechka

, Irkutsk Oblast, Russia

Hottest
July
21°C peak
Coldest
January
-21°C low
Wettest
August
97mm rain
Best to Visit
July, August
Mild temps & low rain

Climate Overview

The climate in Bol’shaya Rechka is cold. The average annual temperature is 1°C and approximately 456mm of precipitation falls per year. August is the wettest month, receiving around 97mm of rainfall. Bol’shaya Rechka is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -21°C. Snowfall occurs from January to December, with around 65cm accumulating over the season.

Temperature

-30° -20° -10° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: -14° Average: -17° Min: -21° Feb Max: -11° Average: -15° Min: -19° Mar Max: 0° Average: -5° Min: -10° Apr Max: 7° Average: 2° Min: -2° May Max: 12° Average: 8° Min: 3° Jun Max: 18° Average: 13° Min: 9° Jul Max: 21° Average: 17° Min: 13° Aug Max: 20° Average: 17° Min: 14° Sep Max: 15° Average: 11° Min: 8° Oct Max: 8° Average: 4° Min: 0° Nov Max: -3° Average: -5° Min: -9° Dec Max: -11° Average: -14° Min: -17°
Max
Average
Min

Bol’shaya Rechka has a wide annual temperature range, spanning 42°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 21°C with a mean of 17°C. January brings the harshest conditions, with lows dropping to -21°C and an average temperature of -17°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between February and March, with a 10°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 7mm Snow: 8mm Feb Precipitation: 7mm Snow: 7mm Mar Precipitation: 13mm Snow: 10mm Apr Precipitation: 21mm Snow: 9mm May Precipitation: 46mm Snow: 3mm Jun Precipitation: 61mm Snow: 0mm Jul Precipitation: 93mm Snow: 0mm Aug Precipitation: 97mm Snow: 0mm Sep Precipitation: 66mm Snow: 1mm Oct Precipitation: 21mm Snow: 8mm Nov Precipitation: 13mm Snow: 11mm Dec Precipitation: 10mm Snow: 10mm
Precipitation
Snow

Bol’shaya Rechka is a relatively dry area, receiving approximately 456mm of precipitation annually, which averages out to around 38mm per month. The wettest month is August, averaging 97mm of rainfall. July and September also tend to see above-average precipitation. The driest month is February, with just 7mm. That's 90mm less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 65cm accumulating over the season. November typically sees the most snow at around 11cm.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 11km/h Feb Wind Speed: 11km/h Mar Wind Speed: 13km/h Apr Wind Speed: 15km/h May Wind Speed: 16km/h Jun Wind Speed: 12km/h Jul Wind Speed: 12km/h Aug Wind Speed: 13km/h Sep Wind Speed: 16km/h Oct Wind Speed: 15km/h Nov Wind Speed: 15km/h Dec Wind Speed: 12km/h
Wind Speed

Bol’shaya Rechka is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

89 days until Summer

It is currently spring in Bol’shaya Rechka, which began on March 20, 2026. Bol’shaya Rechka is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 21°C, while the coldest stretch bottoms out in January near -21°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from -10 to 12°C. Rainfall is relatively light, with around 80mm over the season and a monthly average of 27mm. Winds are generally light, averaging 15km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 9 to 21°C. Precipitation is moderate at around 251mm for the season, averaging 84mm per month. Winds are generally light, averaging 13km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from -9 to 15°C. Rainfall is relatively light, with around 101mm over the season and a monthly average of 34mm. Expect around 19cm of snow accumulation during this period. Winds are moderate at around 15km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.

Winter

Temperatures range from -21 to -11°C. Precipitation is minimal, with only around 24mm for the entire season. Expect around 24cm of snow accumulation during this period. Winds are generally light, averaging 11km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.

Best Time to Visit

Jan -17°
Feb -15°
Mar -5°
Apr
May
Jun 13°
Jul 17°
Aug 17°
Sep 11°
Oct
Nov -5°
Dec -14°

The best time to visit Bol’shaya Rechka is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 95mm per month. By contrast, January can be quite cold with temperatures dropping to -21°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Bol’shaya Rechka based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-21 °C
-14 °C
11 km/h
7 mm
8 cm
Feb
-19 °C
-11 °C
11 km/h
7 mm
7 cm
Mar Current
-10 °C
0 °C
13 km/h
13 mm
10 cm
Apr
-2 °C
7 °C
15 km/h
21 mm
9 cm
May
3 °C
12 °C
16 km/h
46 mm
3 cm
Jun
9 °C
18 °C
12 km/h
61 mm
0 cm
Jul
13 °C
21 °C
12 km/h
93 mm
0 cm
Aug
14 °C
20 °C
13 km/h
97 mm
0 cm
Sep
8 °C
15 °C
16 km/h
66 mm
1 cm
Oct
0 °C
8 °C
15 km/h
21 mm
8 cm
Nov
-9 °C
-3 °C
15 km/h
13 mm
11 cm
Dec
-17 °C
-11 °C
12 km/h
10 mm
10 cm
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Metric (°C, km/h)