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Monthly climate in Gelu, Romania

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Gelu features a oceanic climate (Cfb). Temperatures typically range between 0 °C (33 °F) and 24 °C (75 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 39 °C (103 °F). The average annual precipitation amounts to about 638 mm (25.1 inches) and receives 107 rainy days on the 1 mm (0.04 inches) threshold annually. Gelu enjoys an average of 3693 hours of sunshine throughout the year, and daylight varies from 8 hours 41 minutes to 15 hours 41 minutes per day.

Monthly average temperatures in Gelu, Romania

The warmest months in Gelu are June, July and August, with daily mean temperatures ranging from 22 to 24 °C (71 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 4 °C (33 - 39 °F) throughout the day. On average each year, Gelu experiences 89 days above 25 °C (77.0 °F) and 59 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Gelu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(59°F)		20°C
(68°F)		25°C
(77°F)		29°C
(84°F)		31°C
(88°F)		37°C
(100°F)		37°C
(99°F)		39°C
(103°F)		33°C
(92°F)		27°C
(82°F)		25°C
(76°F)		16°C
(61°F)
Mean maximum11°C
(51°F)		16°C
(62°F)		22°C
(71°F)		26°C
(79°F)		29°C
(84°F)		32°C
(90°F)		34°C
(94°F)		36°C
(97°F)		32°C
(90°F)		26°C
(79°F)		20°C
(69°F)		14°C
(57°F)
Average high3°C
(38°F)		8°C
(47°F)		12°C
(54°F)		18°C
(65°F)		22°C
(72°F)		27°C
(81°F)		29°C
(84°F)		30°C
(87°F)		25°C
(77°F)		19°C
(67°F)		12°C
(54°F)		6°C
(43°F)
Daily mean0°C
(33°F)		4°C
(39°F)		7°C
(45°F)		12°C
(54°F)		17°C
(63°F)		22°C
(71°F)		23°C
(74°F)		24°C
(75°F)		18°C
(65°F)		13°C
(56°F)		8°C
(47°F)		3°C
(38°F)
Average low-2°C
(28°F)		0°C
(33°F)		2°C
(35°F)		6°C
(44°F)		11°C
(53°F)		16°C
(61°F)		17°C
(63°F)		18°C
(64°F)		13°C
(55°F)		8°C
(47°F)		5°C
(41°F)		1°C
(34°F)
Mean minimum-10°C
(15°F)		-7°C
(20°F)		-6°C
(21°F)		0°C
(33°F)		5°C
(42°F)		10°C
(51°F)		11°C
(52°F)		11°C
(52°F)		6°C
(42°F)		2°C
(35°F)		-2°C
(29°F)		-6°C
(21°F)
Minimum-16°C
(4°F)		-10°C
(13°F)		-17°C
(2°F)		-3°C
(27°F)		3°C
(38°F)		7°C
(45°F)		9°C
(49°F)		10°C
(50°F)		3°C
(38°F)		-0°C
(32°F)		-4°C
(26°F)		-9°C
(16°F)

Compare climate in Gelu with other places

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

Monthly average precipitation in Gelu, Romania

Gelu usually has the most precipitation in May, June and December, with an average of 12 rainy days and 75 mm (3.0 inches) of precipitation per month. The driest months in Gelu are January, April and October. On average, 40 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Gelu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)39 (1.5)49 (1.9)50 (2.0)37 (1.5)77 (3.0)86 (3.4)57 (2.2)46 (1.8)44 (1.7)43 (1.7)48 (1.9)64 (2.5)
Average precipitation days (≥ 1 mm)899713148667911

Monthly sunshine hours in Gelu, Romania

The sunniest months in Gelu are June, July and August, when the sun shines an average of 13 hours 30 minutes a day. Least sunny months in Gelu: January, February and December receive an average of 6 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Gelu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours172216299341389408432401335287217190
Mean daily daylight hours9h 4m10h 20m11h 56m13h 34m14h 58m15h 41m15h 18m14h 4m12h 29m10h 52m9h 25m8h 41m

Solar UV radiation in Gelu, Romania

Gelu 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 Gelu UV Index data.

Average daily maximum UV levels by month for Gelu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689987532