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Monthly climate in Issum, North Rhine-Westphalia, Germany

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Issum features a oceanic climate (Cfb).Temperatures typically range between 4 °C (39 °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 39 °C (103 °F).The average annual precipitation amounts to about 847 mm (33.4 inches) and receives 150 rainy days on the 1 mm (0.04 inches) threshold annually.Issum enjoys an average of 3376 hours of sunshine throughout the year, and daylight varies from 7 hours 53 minutes to 16 hours 33 minutes per day.

Monthly average temperatures in Issum, North Rhine-Westphalia, Germany §

The warmest months in Issum 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 5 °C (39 - 42 °F) throughout the day. On average each year, Issum experiences 34 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 Issum, North Rhine-Westphalia, Germany.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
(67°F)		 22°C
(72°F)		 28°C
(82°F)		 32°C
(91°F)		 35°C
(95°F)		 39°C
(103°F)		 36°C
(97°F)		 33°C
(91°F)		 27°C
(81°F)		 20°C
(67°F)		 15°C
(59°F)
Mean maximum 12°C
(54°F)		 15°C
(60°F)		 19°C
(66°F)		 24°C
(76°F)		 28°C
(82°F)		 30°C
(86°F)		 32°C
(89°F)		 32°C
(90°F)		 29°C
(84°F)		 23°C
(73°F)		 17°C
(62°F)		 14°C
(57°F)
Average high 6°C
(43°F)		 8°C
(47°F)		 11°C
(52°F)		 15°C
(59°F)		 19°C
(66°F)		 23°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 20°C
(68°F)		 16°C
(60°F)		 10°C
(50°F)		 7°C
(45°F)
Daily mean 4°C
(39°F)		 5°C
(41°F)		 7°C
(45°F)		 10°C
(51°F)		 14°C
(57°F)		 19°C
(66°F)		 19°C
(67°F)		 19°C
(67°F)		 15°C
(60°F)		 12°C
(54°F)		 7°C
(45°F)		 5°C
(42°F)
Average low 2°C
(36°F)		 2°C
(36°F)		 3°C
(38°F)		 5°C
(42°F)		 9°C
(49°F)		 14°C
(58°F)		 15°C
(59°F)		 15°C
(59°F)		 11°C
(53°F)		 9°C
(49°F)		 5°C
(41°F)		 3°C
(38°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
(50°F)		 10°C
(49°F)		 6°C
(43°F)		 3°C
(38°F)		 -1°C
(30°F)		 -3°C
(27°F)
Minimum -7°C
(19°F)		 -11°C
(13°F)		 -8°C
(19°F)		 -2°C
(28°F)		 1°C
(35°F)		 8°C
(46°F)		 8°C
(47°F)		 8°C
(46°F)		 3°C
(38°F)		 2°C
(36°F)		 -3°C
(27°F)		 -4°C
(24°F)

Compare climate in Issum with other places

Compare temperature, precipitation, sunshine, UV index in Issum, North Rhine-Westphalia, Germany with other places around the world.

Monthly average precipitation in Issum, North Rhine-Westphalia, Germany §

Issum usually has the most precipitation in July, October and December, with an average of 14 rainy days and 95 mm (3.7 inches) of precipitation per month.The driest months in Issum 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 Issum, North Rhine-Westphalia, Germany.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) 69 (2.7) 76 (3.0) 72 (2.8) 35 (1.4) 62 (2.4) 63 (2.5) 90 (3.5) 71 (2.8) 58 (2.3) 97 (3.8) 57 (2.2) 97 (3.8)
Average precipitation days (≥ 1 mm) 13 13 14 9 12 10 12 14 10 14 11 18

Monthly sunshine hours in Issum, North Rhine-Westphalia, Germany §

The sunniest months in Issum are May, June and July, when the sun shines an average of 12 hours 54 minutes a day.Least sunny months in Issum: January, November and December receive an average of 4 hours 47 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Issum, North Rhine-Westphalia, Germany.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 115 202 271 341 393 387 406 379 315 238 189 135
Mean daily daylight hours 8h 23m 9h 58m 11h 55m 13h 54m 15h 38m 16h 33m 16h 4m 14h 30m 12h 35m 10h 36m 8h 50m 7h 53m

Solar UV radiation in Issum, North Rhine-Westphalia, Germany §

Issum 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 Issum UV Index data.

Average daily maximum UV levels by month for Issum, North Rhine-Westphalia, Germany.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