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Monthly climate in Costisa, Romania

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Costisa features a humid continental climate (Dfb). Temperatures typically range between -1 °C (30 °F) and 22 °C (72 °F) through the year, but rarely can drop to -24 °C (-11 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 581 mm (22.9 inches) and receives 101 rainy days on the 1 mm (0.04 inches) threshold annually. Costisa enjoys an average of 3654 hours of sunshine throughout the year, and daylight varies from 8 hours 36 minutes to 15 hours 46 minutes per day.

Monthly average temperatures in Costisa, Romania

The warmest months in Costisa are June, July and August, with daily mean temperatures ranging from 20 to 22 °C (68 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 1 °C (30 - 34 °F) throughout the day. On average each year, Costisa experiences 69 days above 25 °C (77.0 °F) and 92 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Costisa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(57°F)		19°C
(67°F)		24°C
(75°F)		27°C
(80°F)		30°C
(85°F)		33°C
(92°F)		34°C
(93°F)		36°C
(97°F)		34°C
(93°F)		26°C
(79°F)		23°C
(73°F)		16°C
(61°F)
Mean maximum10°C
(49°F)		15°C
(60°F)		20°C
(69°F)		24°C
(75°F)		28°C
(83°F)		31°C
(88°F)		33°C
(91°F)		34°C
(93°F)		31°C
(87°F)		25°C
(77°F)		19°C
(66°F)		12°C
(54°F)
Average high2°C
(36°F)		5°C
(42°F)		10°C
(50°F)		16°C
(61°F)		21°C
(70°F)		25°C
(78°F)		27°C
(80°F)		28°C
(83°F)		23°C
(74°F)		17°C
(63°F)		9°C
(49°F)		4°C
(40°F)
Daily mean-1°C
(30°F)		1°C
(34°F)		5°C
(41°F)		10°C
(50°F)		16°C
(60°F)		20°C
(68°F)		21°C
(70°F)		22°C
(72°F)		17°C
(63°F)		11°C
(52°F)		5°C
(42°F)		1°C
(34°F)
Average low-5°C
(24°F)		-3°C
(27°F)		0°C
(32°F)		4°C
(40°F)		10°C
(50°F)		15°C
(59°F)		16°C
(60°F)		16°C
(61°F)		11°C
(52°F)		6°C
(43°F)		2°C
(37°F)		-1°C
(30°F)
Mean minimum-15°C
(6°F)		-10°C
(14°F)		-7°C
(20°F)		-3°C
(28°F)		3°C
(38°F)		10°C
(50°F)		11°C
(51°F)		11°C
(51°F)		3°C
(38°F)		1°C
(34°F)		-4°C
(25°F)		-8°C
(18°F)
Minimum-24°C
(-11°F)		-19°C
(-2°F)		-15°C
(6°F)		-6°C
(22°F)		1°C
(34°F)		7°C
(44°F)		8°C
(47°F)		8°C
(46°F)		-1°C
(31°F)		-2°C
(29°F)		-7°C
(20°F)		-14°C
(8°F)

Compare climate in Costisa with other places

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

Monthly average precipitation in Costisa, Romania

Costisa usually has the most precipitation in May, June and July, with an average of 12 rainy days and 77 mm (3.0 inches) of precipitation per month. The driest months in Costisa are January, October and November. On average, 31 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Costisa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)26 (1.0)38 (1.5)41 (1.6)38 (1.5)64 (2.5)103 (4.0)63 (2.5)48 (1.9)38 (1.5)35 (1.4)33 (1.3)53 (2.1)
Average precipitation days (≥ 1 mm)679812151176569

Monthly sunshine hours in Costisa, Romania

The sunniest months in Costisa are June, July and August, when the sun shines an average of 13 hours 25 minutes a day. Least sunny months in Costisa: January, November and December receive an average of 5 hours 59 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Costisa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours161219289341396403422408335286214174
Mean daily daylight hours9h 0m10h 18m11h 56m13h 36m15h 2m15h 46m15h 23m14h 6m12h 30m10h 50m9h 22m8h 36m

Solar UV radiation in Costisa, Romania

Costisa 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 Costisa UV Index data.

Average daily maximum UV levels by month for Costisa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689987432