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Monthly climate in Raiu, Romania

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Raiu features a oceanic climate (Cfb). Temperatures typically range between 0 °C (32 °F) and 24 °C (75 °F) through the year, but rarely can drop to -15 °C (6 °F) or can rise to as high as 37 °C (98 °F). The average annual precipitation amounts to about 504 mm (19.8 inches) and receives 86 rainy days on the 1 mm (0.04 inches) threshold annually. Raiu enjoys an average of 3660 hours of sunshine throughout the year, and daylight varies from 8 hours 39 minutes to 15 hours 42 minutes per day.

Monthly average temperatures in Raiu, Romania

The warmest months in Raiu are June, July and August, with daily mean temperatures ranging from 22 to 24 °C (72 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 2 °C (32 - 36 °F) throughout the day. On average each year, Raiu experiences 84 days above 25 °C (77.0 °F) and 71 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Raiu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(57°F)		19°C
(66°F)		24°C
(75°F)		29°C
(85°F)		31°C
(88°F)		34°C
(93°F)		36°C
(97°F)		37°C
(98°F)		35°C
(95°F)		28°C
(82°F)		24°C
(75°F)		16°C
(61°F)
Mean maximum11°C
(51°F)		16°C
(61°F)		21°C
(70°F)		25°C
(77°F)		29°C
(85°F)		32°C
(90°F)		35°C
(94°F)		35°C
(95°F)		32°C
(89°F)		25°C
(78°F)		19°C
(67°F)		12°C
(54°F)
Average high3°C
(37°F)		6°C
(43°F)		10°C
(51°F)		17°C
(63°F)		22°C
(73°F)		27°C
(81°F)		28°C
(83°F)		30°C
(86°F)		25°C
(77°F)		18°C
(65°F)		10°C
(50°F)		5°C
(41°F)
Daily mean-0°C
(32°F)		2°C
(36°F)		6°C
(43°F)		11°C
(53°F)		17°C
(63°F)		22°C
(72°F)		23°C
(74°F)		24°C
(75°F)		19°C
(66°F)		12°C
(55°F)		7°C
(44°F)		2°C
(36°F)
Average low-3°C
(27°F)		-1°C
(30°F)		1°C
(35°F)		6°C
(42°F)		11°C
(53°F)		17°C
(63°F)		18°C
(64°F)		18°C
(64°F)		13°C
(56°F)		8°C
(47°F)		4°C
(39°F)		-0°C
(32°F)
Mean minimum-11°C
(13°F)		-9°C
(16°F)		-6°C
(22°F)		-1°C
(30°F)		5°C
(42°F)		11°C
(53°F)		12°C
(55°F)		13°C
(55°F)		5°C
(42°F)		2°C
(35°F)		-3°C
(26°F)		-7°C
(20°F)
Minimum-15°C
(6°F)		-14°C
(7°F)		-13°C
(10°F)		-4°C
(24°F)		4°C
(39°F)		8°C
(47°F)		11°C
(53°F)		9°C
(49°F)		1°C
(34°F)		-2°C
(30°F)		-6°C
(21°F)		-10°C
(14°F)

Compare climate in Raiu with other places

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

Monthly average precipitation in Raiu, Romania

Raiu usually has the most precipitation in June, July and December, with an average of 10 rainy days and 66 mm (2.6 inches) of precipitation per month. The driest months in Raiu are January, September and November. On average, 27 mm (1.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Raiu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)26 (1.0)34 (1.4)35 (1.4)43 (1.7)47 (1.9)90 (3.5)58 (2.3)29 (1.1)28 (1.1)36 (1.4)28 (1.1)49 (1.9)
Average precipitation days (≥ 1 mm)478610138455610

Monthly sunshine hours in Raiu, Romania

The sunniest months in Raiu are June, July and August, when the sun shines an average of 13 hours 30 minutes a day. Least sunny months in Raiu: January, November and December receive an average of 5 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Raiu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours161221293345401403429408339289201165
Mean daily daylight hours9h 3m10h 19m11h 56m13h 35m14h 59m15h 42m15h 19m14h 4m12h 29m10h 51m9h 24m8h 39m

Solar UV radiation in Raiu, Romania

Raiu 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 Raiu UV Index data.

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