nomadseason

Monthly climate in Iserlohn, North Rhine-Westphalia, Germany

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Iserlohn features a oceanic climate (Cfb).Temperatures typically range between 3 °C (38 °F) and 19 °C (66 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 37 °C (100 °F).The average annual precipitation amounts to about 913 mm (36.0 inches) and receives 160 rainy days on the 1 mm (0.04 inches) threshold annually.Iserlohn enjoys an average of 3280 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 Iserlohn, North Rhine-Westphalia, Germany §

The warmest months in Iserlohn 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 3 to 5 °C (38 - 40 °F) throughout the day. On average each year, Iserlohn experiences 30 days above 25 °C (77.0 °F) and 37 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Iserlohn, 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)		 20°C
(68°F)		 22°C
(73°F)		 27°C
(82°F)		 32°C
(90°F)		 34°C
(94°F)		 37°C
(100°F)		 36°C
(97°F)		 31°C
(88°F)		 26°C
(80°F)		 19°C
(67°F)		 15°C
(59°F)
Mean maximum 11°C
(53°F)		 15°C
(60°F)		 19°C
(66°F)		 24°C
(76°F)		 27°C
(81°F)		 29°C
(84°F)		 31°C
(88°F)		 31°C
(88°F)		 29°C
(84°F)		 22°C
(72°F)		 17°C
(62°F)		 13°C
(56°F)
Average high 5°C
(41°F)		 7°C
(45°F)		 10°C
(51°F)		 14°C
(58°F)		 18°C
(64°F)		 23°C
(74°F)		 23°C
(74°F)		 24°C
(75°F)		 19°C
(67°F)		 15°C
(59°F)		 9°C
(49°F)		 6°C
(44°F)
Daily mean 3°C
(38°F)		 4°C
(40°F)		 6°C
(44°F)		 10°C
(50°F)		 13°C
(56°F)		 18°C
(65°F)		 19°C
(66°F)		 19°C
(66°F)		 15°C
(59°F)		 12°C
(53°F)		 7°C
(44°F)		 5°C
(40°F)
Average low 1°C
(34°F)		 1°C
(35°F)		 3°C
(37°F)		 5°C
(41°F)		 9°C
(48°F)		 14°C
(57°F)		 14°C
(58°F)		 15°C
(59°F)		 11°C
(51°F)		 9°C
(48°F)		 4°C
(40°F)		 3°C
(37°F)
Mean minimum -4°C
(24°F)		 -5°C
(23°F)		 -4°C
(25°F)		 -2°C
(28°F)		 2°C
(36°F)		 8°C
(46°F)		 9°C
(48°F)		 9°C
(48°F)		 5°C
(41°F)		 2°C
(37°F)		 -2°C
(29°F)		 -4°C
(26°F)
Minimum -9°C
(16°F)		 -17°C
(2°F)		 -9°C
(15°F)		 -4°C
(25°F)		 0°C
(32°F)		 6°C
(43°F)		 8°C
(46°F)		 8°C
(46°F)		 1°C
(34°F)		 0°C
(33°F)		 -5°C
(24°F)		 -7°C
(20°F)

Compare climate in Iserlohn with other places

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

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

Iserlohn usually has the most precipitation in July, October and December, with an average of 16 rainy days and 95 mm (3.8 inches) of precipitation per month.The driest months in Iserlohn are April, September and November. On average, 54 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Iserlohn, 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) 80 (3.1) 82 (3.2) 84 (3.3) 42 (1.6) 73 (2.9) 67 (2.6) 93 (3.7) 80 (3.1) 63 (2.5) 91 (3.6) 57 (2.3) 102 (4.0)
Average precipitation days (≥ 1 mm) 14 12 15 9 13 11 13 15 11 16 12 19

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

The sunniest months in Iserlohn are May, June and July, when the sun shines an average of 12 hours 45 minutes a day.Least sunny months in Iserlohn: January, November and December receive an average of 4 hours 12 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Iserlohn, 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 100 195 257 345 385 384 403 378 314 228 171 115
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 Iserlohn, North Rhine-Westphalia, Germany §

Iserlohn 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 Iserlohn UV Index data.

Average daily maximum UV levels by month for Iserlohn, 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 4 2 1