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Monthly climate in Olen, Flanders, Belgium

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Olen features a oceanic climate (Cfb).Temperatures typically range between 4 °C (40 °F) and 19 °C (67 °F) through the year, but rarely can drop to -11 °C (13 °F) or can rise to as high as 40 °C (104 °F).The average annual precipitation amounts to about 823 mm (32.4 inches) and receives 147 rainy days on the 1 mm (0.04 inches) threshold annually.Olen enjoys an average of 3359 hours of sunshine throughout the year, and daylight varies from 7 hours 55 minutes to 16 hours 30 minutes per day.

Monthly average temperatures in Olen, Flanders, Belgium §

The warmest months in Olen are June, July and August, with daily mean temperatures ranging from 19 to 19 °C (66 - 67 °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, Olen experiences 29 days above 25 °C (77.0 °F) and 26 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Olen, Flanders, Belgium.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)		 19°C
(66°F)		 23°C
(73°F)		 28°C
(83°F)		 32°C
(89°F)		 33°C
(92°F)		 40°C
(104°F)		 35°C
(96°F)		 33°C
(92°F)		 26°C
(79°F)		 19°C
(66°F)		 15°C
(59°F)
Mean maximum 12°C
(54°F)		 15°C
(60°F)		 19°C
(66°F)		 24°C
(75°F)		 27°C
(81°F)		 29°C
(84°F)		 32°C
(89°F)		 32°C
(90°F)		 28°C
(83°F)		 23°C
(73°F)		 16°C
(62°F)		 14°C
(57°F)
Average high 6°C
(44°F)		 8°C
(47°F)		 11°C
(52°F)		 15°C
(59°F)		 19°C
(66°F)		 23°C
(74°F)		 23°C
(75°F)		 23°C
(74°F)		 20°C
(68°F)		 16°C
(61°F)		 10°C
(51°F)		 8°C
(46°F)
Daily mean 4°C
(40°F)		 5°C
(42°F)		 7°C
(45°F)		 10°C
(51°F)		 14°C
(57°F)		 19°C
(66°F)		 19°C
(67°F)		 19°C
(66°F)		 16°C
(60°F)		 12°C
(55°F)		 7°C
(46°F)		 6°C
(42°F)
Average low 2°C
(36°F)		 3°C
(37°F)		 4°C
(39°F)		 5°C
(42°F)		 9°C
(48°F)		 14°C
(57°F)		 14°C
(58°F)		 15°C
(59°F)		 11°C
(53°F)		 10°C
(49°F)		 5°C
(41°F)		 4°C
(39°F)
Mean minimum -3°C
(27°F)		 -4°C
(25°F)		 -3°C
(28°F)		 -1°C
(30°F)		 2°C
(36°F)		 9°C
(48°F)		 9°C
(49°F)		 10°C
(50°F)		 6°C
(43°F)		 4°C
(39°F)		 -1°C
(30°F)		 -3°C
(28°F)
Minimum -6°C
(21°F)		 -11°C
(13°F)		 -7°C
(20°F)		 -4°C
(26°F)		 1°C
(34°F)		 8°C
(46°F)		 7°C
(46°F)		 8°C
(47°F)		 3°C
(39°F)		 2°C
(36°F)		 -2°C
(28°F)		 -5°C
(24°F)

Compare climate in Olen with other places

Compare temperature, precipitation, sunshine, UV index in Olen, Flanders, Belgium with other places around the world.

Monthly average precipitation in Olen, Flanders, Belgium §

Olen usually has the most precipitation in August, October and December, with an average of 14 rainy days and 85 mm (3.3 inches) of precipitation per month.The driest months in Olen are April, September and November. On average, 50 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Olen, Flanders, Belgium.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) 65 (2.5) 72 (2.8) 72 (2.8) 38 (1.5) 65 (2.6) 66 (2.6) 77 (3.0) 78 (3.1) 56 (2.2) 84 (3.3) 57 (2.2) 93 (3.7)
Average precipitation days (≥ 1 mm) 12 12 14 8 13 11 12 14 10 13 12 16

Monthly sunshine hours in Olen, Flanders, Belgium §

The sunniest months in Olen are May, June and July, when the sun shines an average of 12 hours 52 minutes a day.Least sunny months in Olen: January, November and December receive an average of 4 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Olen, Flanders, Belgium.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 118 198 268 340 391 389 402 376 315 235 185 134
Mean daily daylight hours 8h 25m 9h 59m 11h 55m 13h 53m 15h 36m 16h 30m 16h 1m 14h 29m 12h 34m 10h 37m 8h 51m 7h 55m

Solar UV radiation in Olen, Flanders, Belgium §

Olen 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 Olen UV Index data.

Average daily maximum UV levels by month for Olen, Flanders, Belgium.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