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Monthly climate in Istok, Russian Federation

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Istok features a humid continental climate (Dwb). Temperatures typically range between -17 °C (2 °F) and 17 °C (63 °F) through the year, but rarely can drop to -35 °C (-32 °F) or can rise to as high as 26 °C (79 °F). The average annual precipitation amounts to about 478 mm (18.8 inches) and receives 92 rainy days on the 1 mm (0.04 inches) threshold annually. Istok enjoys an average of 3530 hours of sunshine throughout the year, and daylight varies from 7 hours 48 minutes to 16 hours 37 minutes per day.

Monthly average temperatures in Istok, Russian Federation

The warmest months in Istok are June, July and August, with daily mean temperatures ranging from 12 to 17 °C (54 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -17 to -11 °C (2 - 12 °F) throughout the day. On average each year, Istok experiences 0 days above 25 °C (77.0 °F) and 173 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Istok. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum-6°C
(21°F)		-0°C
(32°F)		10°C
(50°F)		17°C
(64°F)		22°C
(72°F)		24°C
(76°F)		24°C
(76°F)		26°C
(79°F)		24°C
(75°F)		18°C
(64°F)		9°C
(48°F)		5°C
(42°F)
Mean maximum-8°C
(19°F)		-4°C
(25°F)		7°C
(44°F)		14°C
(57°F)		18°C
(65°F)		20°C
(69°F)		23°C
(74°F)		25°C
(76°F)		21°C
(71°F)		14°C
(57°F)		7°C
(46°F)		-0°C
(32°F)
Average high-14°C
(7°F)		-12°C
(10°F)		-2°C
(28°F)		6°C
(42°F)		10°C
(50°F)		15°C
(60°F)		19°C
(66°F)		20°C
(68°F)		15°C
(59°F)		8°C
(46°F)		-1°C
(30°F)		-9°C
(17°F)
Daily mean-17°C
(2°F)		-16°C
(4°F)		-6°C
(22°F)		2°C
(35°F)		6°C
(44°F)		12°C
(54°F)		16°C
(62°F)		17°C
(63°F)		12°C
(54°F)		4°C
(40°F)		-4°C
(25°F)		-11°C
(12°F)
Average low-20°C
(-3°F)		-19°C
(-2°F)		-10°C
(15°F)		-2°C
(29°F)		3°C
(37°F)		9°C
(48°F)		14°C
(57°F)		15°C
(59°F)		9°C
(49°F)		2°C
(35°F)		-7°C
(20°F)		-14°C
(7°F)
Mean minimum-26°C
(-15°F)		-28°C
(-19°F)		-19°C
(-1°F)		-7°C
(19°F)		-3°C
(28°F)		4°C
(40°F)		10°C
(51°F)		11°C
(51°F)		4°C
(39°F)		-3°C
(27°F)		-15°C
(6°F)		-26°C
(-15°F)
Minimum-32°C
(-26°F)		-35°C
(-32°F)		-24°C
(-11°F)		-10°C
(14°F)		-5°C
(24°F)		3°C
(38°F)		10°C
(49°F)		5°C
(41°F)		1°C
(34°F)		-6°C
(22°F)		-21°C
(-5°F)		-31°C
(-24°F)

Compare climate in Istok with other places

Compare temperature, precipitation, sunshine, UV index in Istok, Russian Federation with other places around the world.

Monthly average precipitation in Istok, Russian Federation

Istok usually has the most precipitation in July, August and September, with an average of 11 rainy days and 88 mm (3.5 inches) of precipitation per month. The driest months in Istok are January, February and April. On average, 12 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Istok. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)12 (0.5)11 (0.4)14 (0.6)13 (0.5)34 (1.3)33 (1.3)85 (3.3)84 (3.3)94 (3.7)37 (1.4)27 (1.1)33 (1.3)
Average precipitation days (≥ 1 mm)434387912148911

Monthly sunshine hours in Istok, Russian Federation

The sunniest months in Istok are May, June and July, when the sun shines an average of 12 hours 20 minutes a day. Least sunny months in Istok: January, November and December receive an average of 6 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Istok. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours171248315341372386376341296274224182
Mean daily daylight hours8h 19m9h 55m11h 53m13h 55m15h 41m16h 37m16h 8m14h 33m12h 36m10h 36m8h 47m7h 48m

Solar UV radiation in Istok, Russian Federation

Istok experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 7 - 8, which corresponds to the High / Very High category of sun exposure. January, February and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Istok UV Index data.

Average daily maximum UV levels by month for Istok. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)124578875321