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Monthly climate in Viljandi, Estonia

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Viljandi features a humid continental climate (Dfb).Temperatures typically range between -3 °C (27 °F) and 18 °C (64 °F) through the year, but rarely can drop to -24 °C (-11 °F) or can rise to as high as 31 °C (88 °F).The average annual precipitation amounts to about 763 mm (30.0 inches) and receives 142 rainy days on the 1 mm (0.04 inches) threshold annually.Viljandi enjoys an average of 3247 hours of sunshine throughout the year, and daylight varies from 6 hours 29 minutes to 18 hours 7 minutes per day.

Monthly average temperatures in Viljandi, Estonia §

The warmest months in Viljandi are June, July and August, with daily mean temperatures ranging from 17 to 18 °C (62 - 64 °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, Viljandi 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 Viljandi, Estonia.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 8°C
(46°F)		 8°C
(47°F)		 13°C
(55°F)		 22°C
(73°F)		 28°C
(82°F)		 31°C
(88°F)		 31°C
(88°F)		 31°C
(87°F)		 26°C
(79°F)		 19°C
(67°F)		 12°C
(54°F)		 9°C
(48°F)
Mean maximum 5°C
(41°F)		 6°C
(42°F)		 10°C
(51°F)		 19°C
(66°F)		 24°C
(76°F)		 25°C
(77°F)		 28°C
(83°F)		 27°C
(80°F)		 24°C
(75°F)		 16°C
(62°F)		 11°C
(52°F)		 6°C
(43°F)
Average high -0°C
(32°F)		 -1°C
(31°F)		 4°C
(39°F)		 9°C
(49°F)		 15°C
(60°F)		 21°C
(70°F)		 22°C
(71°F)		 21°C
(69°F)		 16°C
(61°F)		 10°C
(51°F)		 5°C
(41°F)		 0°C
(33°F)
Daily mean -2°C
(28°F)		 -3°C
(27°F)		 0°C
(33°F)		 5°C
(42°F)		 11°C
(52°F)		 17°C
(62°F)		 18°C
(64°F)		 17°C
(62°F)		 12°C
(55°F)		 7°C
(46°F)		 3°C
(38°F)		 -1°C
(30°F)
Average low -4°C
(24°F)		 -5°C
(23°F)		 -3°C
(26°F)		 1°C
(34°F)		 5°C
(42°F)		 11°C
(53°F)		 13°C
(56°F)		 12°C
(54°F)		 9°C
(48°F)		 5°C
(41°F)		 1°C
(35°F)		 -3°C
(27°F)
Mean minimum -16°C
(4°F)		 -15°C
(5°F)		 -13°C
(9°F)		 -6°C
(22°F)		 -2°C
(29°F)		 4°C
(40°F)		 7°C
(46°F)		 6°C
(44°F)		 1°C
(34°F)		 -2°C
(28°F)		 -6°C
(22°F)		 -10°C
(13°F)
Minimum -21°C
(-6°F)		 -24°C
(-11°F)		 -23°C
(-9°F)		 -8°C
(18°F)		 -5°C
(24°F)		 3°C
(38°F)		 5°C
(42°F)		 5°C
(42°F)		 -2°C
(28°F)		 -5°C
(23°F)		 -10°C
(14°F)		 -24°C
(-11°F)

Compare climate in Viljandi with other places

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

Monthly average precipitation in Viljandi, Estonia §

Viljandi usually has the most precipitation in July, August and October, with an average of 13 rainy days and 88 mm (3.4 inches) of precipitation per month.The driest months in Viljandi are January, February and April. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Viljandi, Estonia.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 38 (1.5) 47 (1.9) 53 (2.1) 51 (2.0) 51 (2.0) 76 (3.0) 82 (3.2) 99 (3.9) 75 (3.0) 82 (3.2) 57 (2.2) 52 (2.1)
Average precipitation days (≥ 1 mm) 10 10 12 11 10 12 12 13 14 14 11 13

Monthly sunshine hours in Viljandi, Estonia §

The sunniest months in Viljandi are May, June and July, when the sun shines an average of 14 hours 49 minutes a day.Least sunny months in Viljandi: January, November and December receive an average of 2 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Viljandi, Estonia.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 60 137 263 348 435 466 461 391 300 208 110 62
Mean daily daylight hours 7h 12m 9h 20m 11h 52m 14h 27m 16h 48m 18h 7m 17h 24m 15h 15m 12h 44m 10h 11m 7h 49m 6h 29m

Solar UV radiation in Viljandi, Estonia §

Viljandi 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 Viljandi UV Index data.

Average daily maximum UV levels by month for Viljandi, Estonia.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 1 2 3 4 5 7 7 6 4 2 1 1