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Monthly climate in Ardu, Estonia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ardu 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 -27 °C (-17 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 746 mm (29.4 inches) and receives 149 rainy days on the 1 mm (0.04 inches) threshold annually. Ardu enjoys an average of 3316 hours of sunshine throughout the year, and daylight varies from 6 hours 16 minutes to 18 hours 22 minutes per day.

Monthly average temperatures in Ardu, Estonia

The warmest months in Ardu are June, July and August, with daily mean temperatures ranging from 16 to 18 °C (61 - 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, Ardu experiences 14 days above 25 °C (77.0 °F) and 120 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ardu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(46°F)		7°C
(45°F)		12°C
(53°F)		21°C
(70°F)		27°C
(81°F)		31°C
(88°F)		31°C
(88°F)		30°C
(86°F)		25°C
(77°F)		18°C
(65°F)		12°C
(54°F)		8°C
(46°F)
Mean maximum5°C
(41°F)		5°C
(41°F)		9°C
(49°F)		18°C
(64°F)		24°C
(76°F)		25°C
(77°F)		28°C
(82°F)		26°C
(80°F)		23°C
(73°F)		16°C
(61°F)		11°C
(52°F)		6°C
(43°F)
Average high-0°C
(31°F)		-1°C
(31°F)		3°C
(38°F)		9°C
(48°F)		15°C
(59°F)		21°C
(69°F)		22°C
(71°F)		20°C
(69°F)		16°C
(61°F)		10°C
(50°F)		5°C
(41°F)		0°C
(33°F)
Daily mean-2°C
(28°F)		-3°C
(27°F)		-0°C
(32°F)		5°C
(41°F)		10°C
(51°F)		16°C
(61°F)		18°C
(64°F)		16°C
(61°F)		12°C
(54°F)		7°C
(45°F)		3°C
(38°F)		-1°C
(30°F)
Average low-5°C
(24°F)		-6°C
(22°F)		-4°C
(25°F)		0°C
(33°F)		5°C
(41°F)		11°C
(51°F)		13°C
(55°F)		12°C
(54°F)		9°C
(48°F)		5°C
(41°F)		1°C
(35°F)		-3°C
(27°F)
Mean minimum-15°C
(5°F)		-16°C
(4°F)		-15°C
(5°F)		-6°C
(21°F)		-2°C
(28°F)		4°C
(40°F)		7°C
(45°F)		6°C
(43°F)		1°C
(34°F)		-3°C
(27°F)		-5°C
(22°F)		-11°C
(12°F)
Minimum-22°C
(-8°F)		-27°C
(-17°F)		-23°C
(-10°F)		-8°C
(17°F)		-5°C
(24°F)		2°C
(37°F)		5°C
(41°F)		4°C
(40°F)		-0°C
(32°F)		-5°C
(23°F)		-8°C
(17°F)		-24°C
(-12°F)

Compare climate in Ardu with other places

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

Monthly average precipitation in Ardu, Estonia

Ardu usually has the most precipitation in July, August and October, with an average of 14 rainy days and 89 mm (3.5 inches) of precipitation per month. The driest months in Ardu 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 Ardu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)41 (1.6)46 (1.8)48 (1.9)47 (1.9)55 (2.2)66 (2.6)76 (3.0)104 (4.1)69 (2.7)86 (3.4)53 (2.1)55 (2.2)
Average precipitation days (≥ 1 mm)111013101011131514151215

Monthly sunshine hours in Ardu, Estonia

The sunniest months in Ardu are May, June and July, when the sun shines an average of 15 hours 16 minutes a day. Least sunny months in Ardu: January, November and December receive an average of 2 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ardu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours5714226636144648247640230420411357
Mean daily daylight hours7h 1m9h 15m11h 51m14h 31m16h 58m18h 22m17h 37m15h 22m12h 46m10h 8m7h 40m6h 16m

Solar UV radiation in Ardu, Estonia

Ardu 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 Ardu UV Index data.

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