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Monthly climate in Tartu, Estonia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Tartu features a humid continental climate (Dfb). Temperatures typically range between -3 °C (27 °F) and 18 °C (65 °F) through the year, but rarely can drop to -24 °C (-12 °F) or can rise to as high as 32 °C (89 °F). The average annual precipitation amounts to about 679 mm (26.7 inches) and receives 140 rainy days on the 1 mm (0.04 inches) threshold annually. Tartu enjoys an average of 3180 hours of sunshine throughout the year, and daylight varies from 6 hours 27 minutes to 18 hours 9 minutes per day.

Monthly average temperatures in Tartu, Estonia

The warmest months in Tartu are June, July and August, with daily mean temperatures ranging from 17 to 18 °C (62 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to -1 °C (27 - 30 °F) throughout the day. On average each year, Tartu experiences 16 days above 25 °C (77.0 °F) and 115 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Tartu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum8°C
(47°F)		9°C
(48°F)		13°C
(55°F)		23°C
(73°F)		27°C
(81°F)		32°C
(89°F)		32°C
(89°F)		31°C
(87°F)		26°C
(78°F)		19°C
(66°F)		12°C
(54°F)		8°C
(48°F)
Mean maximum5°C
(41°F)		5°C
(42°F)		10°C
(50°F)		19°C
(66°F)		24°C
(76°F)		25°C
(78°F)		28°C
(83°F)		27°C
(80°F)		23°C
(75°F)		16°C
(61°F)		11°C
(51°F)		5°C
(42°F)
Average high-1°C
(31°F)		-1°C
(31°F)		3°C
(39°F)		9°C
(49°F)		15°C
(60°F)		21°C
(70°F)		22°C
(72°F)		21°C
(70°F)		16°C
(61°F)		10°C
(50°F)		5°C
(41°F)		0°C
(32°F)
Daily mean-2°C
(28°F)		-3°C
(27°F)		0°C
(32°F)		5°C
(41°F)		11°C
(52°F)		17°C
(63°F)		18°C
(65°F)		17°C
(62°F)		13°C
(55°F)		7°C
(46°F)		3°C
(38°F)		-1°C
(30°F)
Average low-5°C
(24°F)		-5°C
(23°F)		-3°C
(26°F)		1°C
(33°F)		6°C
(43°F)		12°C
(53°F)		14°C
(57°F)		13°C
(55°F)		9°C
(49°F)		5°C
(41°F)		1°C
(35°F)		-3°C
(27°F)
Mean minimum-15°C
(5°F)		-15°C
(5°F)		-13°C
(9°F)		-6°C
(22°F)		-1°C
(30°F)		5°C
(41°F)		8°C
(47°F)		7°C
(46°F)		2°C
(36°F)		-2°C
(29°F)		-5°C
(23°F)		-10°C
(15°F)
Minimum-20°C
(-4°F)		-24°C
(-12°F)		-23°C
(-8°F)		-8°C
(18°F)		-3°C
(26°F)		3°C
(37°F)		6°C
(43°F)		7°C
(45°F)		-0°C
(32°F)		-4°C
(26°F)		-10°C
(15°F)		-21°C
(-5°F)

Compare climate in Tartu with other places

Compare temperature, precipitation, sunshine, UV index in Tartu, Estonia with other places around the world.

Monthly average precipitation in Tartu, Estonia

Tartu usually has the most precipitation in June, August and October, with an average of 12 rainy days and 72 mm (2.8 inches) of precipitation per month. The driest months in Tartu are January, February and March. On average, 42 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Tartu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)38 (1.5)42 (1.7)45 (1.8)49 (1.9)56 (2.2)65 (2.6)65 (2.6)79 (3.1)62 (2.4)72 (2.9)54 (2.1)54 (2.1)
Average precipitation days (≥ 1 mm)101012121110131411141013

Monthly sunshine hours in Tartu, Estonia

The sunniest months in Tartu are May, June and July, when the sun shines an average of 14 hours 40 minutes a day. Least sunny months in Tartu: January, November and December receive an average of 2 hours 23 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Tartu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours5612526033742946345738729520410557
Mean daily daylight hours7h 10m9h 19m11h 52m14h 27m16h 49m18h 9m17h 26m15h 16m12h 45m10h 11m7h 48m6h 27m

Solar UV radiation in Tartu, Estonia

Tartu experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 6 - 7, which corresponds to the High category of sun exposure. January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 1. For more detailed information, check out our hourly Tartu UV Index data.

Average daily maximum UV levels by month for Tartu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)123457764211