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Monthly climate in Sisterea, Romania

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sisterea features a oceanic climate (Cfb). Temperatures typically range between 0 °C (32 °F) and 23 °C (74 °F) through the year, but rarely can drop to -17 °C (1 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 717 mm (28.2 inches) and receives 121 rainy days on the 1 mm (0.04 inches) threshold annually. Sisterea enjoys an average of 3689 hours of sunshine throughout the year, and daylight varies from 8 hours 32 minutes to 15 hours 50 minutes per day.

Monthly average temperatures in Sisterea, Romania

The warmest months in Sisterea are June, July and August, with daily mean temperatures ranging from 21 to 23 °C (71 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 3 °C (32 - 38 °F) throughout the day. On average each year, Sisterea experiences 83 days above 25 °C (77.0 °F) and 63 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sisterea. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(56°F)		18°C
(65°F)		24°C
(75°F)		30°C
(86°F)		30°C
(86°F)		37°C
(99°F)		36°C
(98°F)		38°C
(100°F)		34°C
(94°F)		28°C
(83°F)		24°C
(76°F)		16°C
(62°F)
Mean maximum9°C
(49°F)		15°C
(59°F)		20°C
(69°F)		25°C
(78°F)		28°C
(84°F)		32°C
(89°F)		34°C
(93°F)		35°C
(96°F)		32°C
(90°F)		26°C
(80°F)		20°C
(68°F)		13°C
(55°F)
Average high3°C
(37°F)		7°C
(45°F)		12°C
(53°F)		18°C
(64°F)		22°C
(71°F)		27°C
(80°F)		28°C
(83°F)		30°C
(86°F)		24°C
(76°F)		19°C
(66°F)		12°C
(53°F)		5°C
(42°F)
Daily mean-0°C
(32°F)		3°C
(38°F)		7°C
(44°F)		12°C
(54°F)		16°C
(62°F)		21°C
(71°F)		23°C
(73°F)		23°C
(74°F)		18°C
(65°F)		13°C
(55°F)		7°C
(46°F)		3°C
(38°F)
Average low-3°C
(27°F)		0°C
(32°F)		2°C
(35°F)		6°C
(44°F)		11°C
(52°F)		16°C
(62°F)		17°C
(63°F)		17°C
(63°F)		12°C
(55°F)		8°C
(46°F)		4°C
(40°F)		1°C
(33°F)
Mean minimum-11°C
(12°F)		-7°C
(19°F)		-5°C
(23°F)		0°C
(33°F)		5°C
(41°F)		10°C
(51°F)		11°C
(53°F)		12°C
(53°F)		6°C
(43°F)		2°C
(35°F)		-2°C
(28°F)		-6°C
(21°F)
Minimum-17°C
(1°F)		-10°C
(15°F)		-11°C
(12°F)		-4°C
(25°F)		3°C
(37°F)		8°C
(47°F)		9°C
(49°F)		11°C
(51°F)		3°C
(37°F)		-1°C
(30°F)		-4°C
(25°F)		-10°C
(15°F)

Compare climate in Sisterea with other places

Compare temperature, precipitation, sunshine, UV index in Sisterea, Romania with other places around the world.

Monthly average precipitation in Sisterea, Romania

Sisterea usually has the most precipitation in May, June and December, with an average of 13 rainy days and 85 mm (3.3 inches) of precipitation per month. The driest months in Sisterea are January, August and September. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sisterea. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)46 (1.8)58 (2.3)49 (1.9)51 (2.0)80 (3.2)97 (3.8)65 (2.6)47 (1.9)44 (1.7)50 (2.0)53 (2.1)77 (3.0)
Average precipitation days (≥ 1 mm)911810131511778913

Monthly sunshine hours in Sisterea, Romania

The sunniest months in Sisterea are June, July and August, when the sun shines an average of 13 hours 36 minutes a day. Least sunny months in Sisterea: January, February and December receive an average of 6 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sisterea. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours165213295346387415431404337283218188
Mean daily daylight hours8h 57m10h 16m11h 56m13h 37m15h 5m15h 50m15h 26m14h 8m12h 30m10h 49m9h 19m8h 32m

Solar UV radiation in Sisterea, Romania

Sisterea experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very 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 2. For more detailed information, check out our hourly Sisterea UV Index data.

Average daily maximum UV levels by month for Sisterea. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689987422