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Monthly climate in Belvaux, Luxembourg

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Belvaux features a oceanic climate (Cfb). Temperatures typically range between 2 °C (36 °F) and 19 °C (67 °F) through the year, but rarely can drop to -11 °C (12 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 902 mm (35.5 inches) and receives 144 rainy days on the 1 mm (0.04 inches) threshold annually. Belvaux enjoys an average of 3305 hours of sunshine throughout the year, and daylight varies from 8 hours 12 minutes to 16 hours 12 minutes per day.

Monthly average temperatures in Belvaux, Luxembourg

The warmest months in Belvaux are June, July and August, with daily mean temperatures ranging from 18 to 19 °C (65 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 4 °C (36 - 39 °F) throughout the day. On average each year, Belvaux experiences 32 days above 25 °C (77.0 °F) and 47 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Belvaux. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(54°F)		19°C
(66°F)		22°C
(72°F)		26°C
(80°F)		31°C
(88°F)		34°C
(93°F)		38°C
(100°F)		34°C
(94°F)		32°C
(90°F)		25°C
(77°F)		20°C
(68°F)		14°C
(58°F)
Mean maximum10°C
(51°F)		14°C
(58°F)		18°C
(65°F)		23°C
(74°F)		26°C
(79°F)		28°C
(83°F)		31°C
(89°F)		31°C
(88°F)		28°C
(83°F)		22°C
(72°F)		16°C
(62°F)		13°C
(55°F)
Average high4°C
(40°F)		7°C
(45°F)		10°C
(51°F)		15°C
(58°F)		18°C
(64°F)		23°C
(73°F)		24°C
(75°F)		24°C
(75°F)		20°C
(68°F)		15°C
(58°F)		8°C
(47°F)		6°C
(43°F)
Daily mean2°C
(36°F)		4°C
(39°F)		6°C
(43°F)		10°C
(50°F)		13°C
(56°F)		18°C
(65°F)		19°C
(67°F)		19°C
(66°F)		15°C
(59°F)		11°C
(52°F)		6°C
(43°F)		4°C
(39°F)
Average low0°C
(33°F)		1°C
(34°F)		2°C
(37°F)		5°C
(41°F)		8°C
(47°F)		13°C
(56°F)		14°C
(58°F)		14°C
(58°F)		10°C
(51°F)		8°C
(46°F)		3°C
(38°F)		2°C
(36°F)
Mean minimum-6°C
(22°F)		-5°C
(23°F)		-3°C
(26°F)		-2°C
(29°F)		2°C
(35°F)		8°C
(46°F)		9°C
(49°F)		9°C
(48°F)		5°C
(42°F)		2°C
(36°F)		-2°C
(29°F)		-4°C
(25°F)
Minimum-9°C
(15°F)		-9°C
(15°F)		-11°C
(12°F)		-3°C
(27°F)		0°C
(32°F)		6°C
(44°F)		7°C
(46°F)		7°C
(44°F)		4°C
(39°F)		1°C
(33°F)		-3°C
(27°F)		-6°C
(22°F)

Compare climate in Belvaux with other places

Compare temperature, precipitation, sunshine, UV index in Belvaux, Luxembourg with other places around the world.

Monthly average precipitation in Belvaux, Luxembourg

Belvaux usually has the most precipitation in March, October and December, with an average of 15 rainy days and 97 mm (3.8 inches) of precipitation per month. The driest months in Belvaux are April, August and September. On average, 55 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Belvaux. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)74 (2.9)79 (3.1)81 (3.2)40 (1.6)74 (2.9)76 (3.0)70 (2.8)60 (2.4)66 (2.6)82 (3.2)72 (2.8)128 (5.0)
Average precipitation days (≥ 1 mm)111214913129129121219

Monthly sunshine hours in Belvaux, Luxembourg

The sunniest months in Belvaux are June, July and August, when the sun shines an average of 13 hours 3 minutes a day. Least sunny months in Belvaux: January, November and December receive an average of 4 hours 13 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Belvaux. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours105187247346384409407384315233173109
Mean daily daylight hours8h 39m10h 6m11h 55m13h 46m15h 22m16h 12m15h 46m14h 20m12h 32m10h 42m9h 4m8h 12m

Solar UV radiation in Belvaux, Luxembourg

Belvaux experiences the highest level of ultraviolet (UV) radiation in May, June 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 Belvaux UV Index data.

Average daily maximum UV levels by month for Belvaux. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)234689886421