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Monthly climate in Sulina, Romania

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sulina features a humid subtropical climate (Cfa). Temperatures typically range between 2 °C (35 °F) and 25 °C (77 °F) through the year, but rarely can drop to -13 °C (8 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 432 mm (17.0 inches) and receives 80 rainy days on the 1 mm (0.04 inches) threshold annually. Sulina enjoys an average of 3726 hours of sunshine throughout the year, and daylight varies from 8 hours 48 minutes to 15 hours 33 minutes per day.

Monthly average temperatures in Sulina, Romania

The warmest months in Sulina are June, July and August, with daily mean temperatures ranging from 22 to 25 °C (72 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 5 °C (35 - 42 °F) throughout the day. On average each year, Sulina experiences 73 days above 25 °C (77.0 °F) and 34 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sulina. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(56°F)		15°C
(59°F)		19°C
(66°F)		24°C
(76°F)		27°C
(80°F)		32°C
(89°F)		33°C
(91°F)		34°C
(94°F)		31°C
(88°F)		25°C
(77°F)		21°C
(70°F)		16°C
(60°F)
Mean maximum11°C
(52°F)		13°C
(56°F)		17°C
(62°F)		20°C
(68°F)		26°C
(78°F)		30°C
(86°F)		32°C
(89°F)		32°C
(90°F)		29°C
(85°F)		23°C
(73°F)		18°C
(64°F)		13°C
(56°F)
Average high4°C
(40°F)		6°C
(44°F)		9°C
(48°F)		14°C
(57°F)		20°C
(68°F)		25°C
(78°F)		28°C
(82°F)		28°C
(83°F)		24°C
(75°F)		18°C
(64°F)		11°C
(53°F)		7°C
(46°F)
Daily mean2°C
(35°F)		4°C
(39°F)		6°C
(43°F)		11°C
(51°F)		17°C
(62°F)		22°C
(72°F)		24°C
(76°F)		25°C
(77°F)		20°C
(69°F)		15°C
(59°F)		9°C
(49°F)		5°C
(42°F)
Average low-1°C
(31°F)		1°C
(34°F)		3°C
(38°F)		7°C
(46°F)		14°C
(57°F)		19°C
(66°F)		21°C
(69°F)		21°C
(70°F)		17°C
(63°F)		12°C
(54°F)		7°C
(46°F)		3°C
(38°F)
Mean minimum-8°C
(18°F)		-6°C
(22°F)		-3°C
(27°F)		3°C
(37°F)		9°C
(49°F)		14°C
(58°F)		17°C
(63°F)		17°C
(64°F)		11°C
(51°F)		7°C
(45°F)		1°C
(33°F)		-3°C
(27°F)
Minimum-13°C
(8°F)		-9°C
(17°F)		-10°C
(15°F)		1°C
(34°F)		8°C
(47°F)		11°C
(52°F)		16°C
(61°F)		15°C
(60°F)		8°C
(46°F)		5°C
(42°F)		-2°C
(29°F)		-6°C
(21°F)

Compare climate in Sulina with other places

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

Monthly average precipitation in Sulina, Romania

Sulina usually has the most precipitation in January, June and December, with an average of 8 rainy days and 51 mm (2.0 inches) of precipitation per month. The driest months in Sulina are August, September and October. On average, 23 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sulina. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)43 (1.7)37 (1.4)35 (1.4)34 (1.3)35 (1.4)57 (2.3)32 (1.3)13 (0.5)26 (1.0)31 (1.2)38 (1.5)51 (2.0)
Average precipitation days (≥ 1 mm)7886786345711

Monthly sunshine hours in Sulina, Romania

The sunniest months in Sulina are May, June and July, when the sun shines an average of 13 hours 44 minutes a day. Least sunny months in Sulina: January, November and December receive an average of 5 hours 52 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sulina. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours156219301356407419437407342294205179
Mean daily daylight hours9h 10m10h 23m11h 56m13h 31m14h 52m15h 33m15h 11m14h 0m12h 28m10h 54m9h 31m8h 48m

Solar UV radiation in Sulina, Romania

Sulina 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, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Sulina UV Index data.

Average daily maximum UV levels by month for Sulina. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235789987532