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Monthly climate in Sillamaee, Estonia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sillamaee 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 -19 °C (-2 °F) or can rise to as high as 28 °C (83 °F). The average annual precipitation amounts to about 930 mm (36.6 inches) and receives 180 rainy days on the 1 mm (0.04 inches) threshold annually. Sillamaee enjoys an average of 3286 hours of sunshine throughout the year, and daylight varies from 6 hours 10 minutes to 18 hours 28 minutes per day.

Monthly average temperatures in Sillamaee, Estonia

The warmest months in Sillamaee are June, July and August, with daily mean temperatures ranging from 16 to 18 °C (60 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from -3 to -1 °C (27 - 31 °F) throughout the day. On average each year, Sillamaee experiences 3 days above 25 °C (77.0 °F) and 86 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sillamaee. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(44°F)		7°C
(44°F)		7°C
(46°F)		17°C
(63°F)		20°C
(69°F)		27°C
(81°F)		28°C
(83°F)		26°C
(79°F)		23°C
(74°F)		16°C
(61°F)		11°C
(53°F)		7°C
(44°F)
Mean maximum4°C
(40°F)		3°C
(38°F)		6°C
(42°F)		12°C
(54°F)		18°C
(65°F)		22°C
(71°F)		24°C
(76°F)		23°C
(74°F)		20°C
(69°F)		14°C
(57°F)		10°C
(50°F)		5°C
(40°F)
Average high-0°C
(32°F)		-1°C
(30°F)		1°C
(34°F)		5°C
(42°F)		11°C
(52°F)		17°C
(64°F)		19°C
(67°F)		19°C
(66°F)		15°C
(59°F)		10°C
(49°F)		5°C
(42°F)		1°C
(34°F)
Daily mean-2°C
(29°F)		-3°C
(27°F)		-1°C
(31°F)		3°C
(39°F)		9°C
(48°F)		16°C
(60°F)		18°C
(65°F)		17°C
(64°F)		14°C
(57°F)		8°C
(47°F)		4°C
(40°F)		-0°C
(32°F)
Average low-3°C
(27°F)		-4°C
(25°F)		-2°C
(28°F)		2°C
(36°F)		7°C
(45°F)		14°C
(57°F)		16°C
(62°F)		16°C
(61°F)		12°C
(54°F)		7°C
(45°F)		3°C
(38°F)		-1°C
(30°F)
Mean minimum-10°C
(15°F)		-11°C
(12°F)		-10°C
(14°F)		-2°C
(29°F)		2°C
(36°F)		9°C
(48°F)		13°C
(56°F)		12°C
(55°F)		8°C
(47°F)		1°C
(35°F)		-2°C
(29°F)		-6°C
(21°F)
Minimum-13°C
(9°F)		-19°C
(-2°F)		-16°C
(3°F)		-5°C
(23°F)		1°C
(34°F)		6°C
(44°F)		11°C
(52°F)		11°C
(52°F)		7°C
(44°F)		0°C
(32°F)		-4°C
(25°F)		-15°C
(5°F)

Compare climate in Sillamaee with other places

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

Monthly average precipitation in Sillamaee, Estonia

Sillamaee usually has the most precipitation in August, September and October, with an average of 17 rainy days and 116 mm (4.6 inches) of precipitation per month. The driest months in Sillamaee are January, April and June. On average, 51 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sillamaee. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)54 (2.1)57 (2.2)55 (2.2)48 (1.9)62 (2.4)51 (2.0)79 (3.1)110 (4.3)106 (4.2)131 (5.2)92 (3.6)86 (3.4)
Average precipitation days (≥ 1 mm)151614111010111616212020

Monthly sunshine hours in Sillamaee, Estonia

The sunniest months in Sillamaee are May, June and July, when the sun shines an average of 15 hours 19 minutes a day. Least sunny months in Sillamaee: January, November and December receive an average of 2 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sillamaee. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours4912526335944548447940530321011148
Mean daily daylight hours6h 57m9h 13m11h 51m14h 33m17h 3m18h 28m17h 42m15h 24m12h 46m10h 6m7h 36m6h 10m

Solar UV radiation in Sillamaee, Estonia

Sillamaee 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, February and November 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 Sillamaee UV Index data.

Average daily maximum UV levels by month for Sillamaee. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113457764211