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Monthly climate in Rotterdam, South Holland, Netherlands

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Rotterdam features a oceanic climate (Cfb).Temperatures typically range between 5 °C (41 °F) and 18 °C (65 °F) through the year, but rarely can drop to -9 °C (15 °F) or can rise to as high as 38 °C (101 °F).The average annual precipitation amounts to about 837 mm (32.9 inches) and receives 152 rainy days on the 1 mm (0.04 inches) threshold annually.Rotterdam enjoys an average of 3528 hours of sunshine throughout the year, and daylight varies from 7 hours 49 minutes to 16 hours 36 minutes per day.

Monthly average temperatures in Rotterdam, South Holland, Netherlands §

The warmest months in Rotterdam are June, July and August, with daily mean temperatures ranging from 17 to 18 °C (63 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 6 °C (41 - 43 °F) throughout the day. On average each year, Rotterdam experiences 15 days above 25 °C (77.0 °F) and 22 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rotterdam, South Holland, Netherlands.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 14°C
(58°F)		 18°C
(65°F)		 21°C
(71°F)		 27°C
(81°F)		 31°C
(87°F)		 32°C
(89°F)		 38°C
(101°F)		 33°C
(93°F)		 31°C
(87°F)		 25°C
(78°F)		 18°C
(65°F)		 14°C
(57°F)
Mean maximum 12°C
(54°F)		 14°C
(58°F)		 18°C
(64°F)		 23°C
(73°F)		 25°C
(78°F)		 27°C
(81°F)		 30°C
(87°F)		 30°C
(86°F)		 26°C
(79°F)		 22°C
(71°F)		 16°C
(61°F)		 13°C
(56°F)
Average high 7°C
(44°F)		 8°C
(47°F)		 10°C
(51°F)		 14°C
(57°F)		 17°C
(63°F)		 21°C
(70°F)		 22°C
(72°F)		 22°C
(72°F)		 19°C
(67°F)		 15°C
(60°F)		 10°C
(51°F)		 8°C
(46°F)
Daily mean 5°C
(41°F)		 5°C
(42°F)		 7°C
(45°F)		 10°C
(50°F)		 13°C
(56°F)		 17°C
(63°F)		 18°C
(65°F)		 18°C
(65°F)		 15°C
(60°F)		 12°C
(55°F)		 8°C
(46°F)		 6°C
(43°F)
Average low 3°C
(37°F)		 3°C
(37°F)		 3°C
(39°F)		 5°C
(42°F)		 9°C
(48°F)		 13°C
(56°F)		 14°C
(58°F)		 15°C
(58°F)		 12°C
(53°F)		 10°C
(50°F)		 5°C
(42°F)		 4°C
(39°F)
Mean minimum -3°C
(27°F)		 -4°C
(26°F)		 -3°C
(28°F)		 -0°C
(31°F)		 3°C
(37°F)		 8°C
(48°F)		 10°C
(50°F)		 10°C
(51°F)		 6°C
(43°F)		 4°C
(40°F)		 -0°C
(32°F)		 -2°C
(28°F)
Minimum -8°C
(19°F)		 -9°C
(15°F)		 -8°C
(18°F)		 -1°C
(30°F)		 1°C
(35°F)		 7°C
(45°F)		 8°C
(47°F)		 8°C
(48°F)		 4°C
(40°F)		 2°C
(36°F)		 -2°C
(29°F)		 -4°C
(25°F)

Compare climate in Rotterdam with other places

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

Monthly average precipitation in Rotterdam, South Holland, Netherlands §

Rotterdam usually has the most precipitation in August, October and December, with an average of 15 rainy days and 89 mm (3.5 inches) of precipitation per month.The driest months in Rotterdam are January, April and November. On average, 52 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rotterdam, South Holland, Netherlands.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 57 (2.3) 65 (2.6) 69 (2.7) 44 (1.7) 65 (2.5) 72 (2.8) 68 (2.7) 84 (3.3) 75 (3.0) 92 (3.6) 56 (2.2) 90 (3.5)
Average precipitation days (≥ 1 mm) 12 12 14 9 12 10 13 14 11 16 12 17

Monthly sunshine hours in Rotterdam, South Holland, Netherlands §

The sunniest months in Rotterdam are May, June and July, when the sun shines an average of 13 hours 38 minutes a day.Least sunny months in Rotterdam: January, November and December receive an average of 4 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rotterdam, South Holland, Netherlands.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 117 200 281 363 411 418 424 397 329 243 195 143
Mean daily daylight hours 8h 20m 9h 56m 11h 55m 13h 55m 15h 41m 16h 36m 16h 7m 14h 32m 12h 35m 10h 35m 8h 47m 7h 49m

Solar UV radiation in Rotterdam, South Holland, Netherlands §

Rotterdam 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 Rotterdam UV Index data.

Average daily maximum UV levels by month for Rotterdam, South Holland, Netherlands.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 1 2 4 5 7 8 8 7 5 3 2 1