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Monthly climate in Rijswijk, Netherlands

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Rijswijk features a oceanic climate (Cfb). Temperatures typically range between 4 °C (40 °F) and 19 °C (66 °F) through the year, but rarely can drop to -11 °C (13 °F) or can rise to as high as 39 °C (102 °F). The average annual precipitation amounts to about 817 mm (32.2 inches) and receives 146 rainy days on the 1 mm (0.04 inches) threshold annually. Rijswijk enjoys an average of 3460 hours of sunshine throughout the year, and daylight varies from 7 hours 51 minutes to 16 hours 34 minutes per day.

Monthly average temperatures in Rijswijk, Netherlands

The warmest months in Rijswijk are June, July and August, with daily mean temperatures ranging from 18 to 19 °C (65 - 66 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 6 °C (40 - 42 °F) throughout the day. On average each year, Rijswijk experiences 21 days above 25 °C (77.0 °F) and 24 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rijswijk. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(59°F)		18°C
(65°F)		22°C
(71°F)		28°C
(82°F)		32°C
(89°F)		33°C
(91°F)		39°C
(102°F)		34°C
(93°F)		32°C
(89°F)		26°C
(79°F)		19°C
(66°F)		15°C
(59°F)
Mean maximum12°C
(54°F)		15°C
(59°F)		18°C
(65°F)		23°C
(74°F)		26°C
(80°F)		28°C
(83°F)		31°C
(87°F)		31°C
(88°F)		27°C
(81°F)		22°C
(72°F)		16°C
(61°F)		14°C
(57°F)
Average high6°C
(44°F)		8°C
(47°F)		11°C
(52°F)		14°C
(58°F)		18°C
(65°F)		22°C
(72°F)		23°C
(73°F)		23°C
(74°F)		20°C
(68°F)		16°C
(60°F)		10°C
(51°F)		8°C
(46°F)
Daily mean4°C
(40°F)		5°C
(42°F)		7°C
(45°F)		10°C
(50°F)		14°C
(57°F)		18°C
(65°F)		19°C
(66°F)		19°C
(66°F)		15°C
(60°F)		12°C
(54°F)		8°C
(46°F)		6°C
(42°F)
Average low2°C
(36°F)		2°C
(37°F)		3°C
(38°F)		5°C
(42°F)		9°C
(48°F)		14°C
(57°F)		14°C
(58°F)		15°C
(58°F)		11°C
(53°F)		9°C
(49°F)		5°C
(41°F)		4°C
(39°F)
Mean minimum-3°C
(27°F)		-4°C
(25°F)		-3°C
(27°F)		-1°C
(30°F)		3°C
(37°F)		9°C
(48°F)		10°C
(49°F)		10°C
(50°F)		6°C
(42°F)		4°C
(39°F)		-1°C
(31°F)		-2°C
(28°F)
Minimum-8°C
(19°F)		-11°C
(13°F)		-7°C
(19°F)		-4°C
(26°F)		1°C
(35°F)		8°C
(47°F)		8°C
(47°F)		8°C
(47°F)		3°C
(38°F)		2°C
(35°F)		-2°C
(30°F)		-4°C
(25°F)

Compare climate in Rijswijk with other places

Compare temperature, precipitation, sunshine, UV index in Rijswijk, Netherlands with other places around the world.

Monthly average precipitation in Rijswijk, Netherlands

Rijswijk usually has the most precipitation in August, October and December, with an average of 14 rainy days and 84 mm (3.3 inches) of precipitation per month. The driest months in Rijswijk are January, April and November. On average, 50 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rijswijk. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)60 (2.4)68 (2.7)71 (2.8)37 (1.5)64 (2.5)71 (2.8)75 (2.9)78 (3.1)66 (2.6)86 (3.4)54 (2.1)86 (3.4)
Average precipitation days (≥ 1 mm)12111591210131310131216

Monthly sunshine hours in Rijswijk, Netherlands

The sunniest months in Rijswijk are May, June and July, when the sun shines an average of 13 hours 18 minutes a day. Least sunny months in Rijswijk: January, November and December receive an average of 4 hours 53 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rijswijk. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours119202274352404405414389323243192138
Mean daily daylight hours8h 22m9h 57m11h 55m13h 55m15h 40m16h 34m16h 5m14h 31m12h 35m10h 36m8h 49m7h 51m

Solar UV radiation in Rijswijk, Netherlands

Rijswijk experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 7 - 8, which corresponds to the High / Very High category of sun exposure. January, February 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 Rijswijk UV Index data.

Average daily maximum UV levels by month for Rijswijk. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)124578875321