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Monthly climate in Koblenz, Aargau, Switzerland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Koblenz features a oceanic climate (Cfb).Temperatures typically range between 1 °C (34 °F) and 20 °C (68 °F) through the year, but rarely can drop to -15 °C (6 °F) or can rise to as high as 35 °C (95 °F).The average annual precipitation amounts to about 1216 mm (47.9 inches) and receives 164 rainy days on the 1 mm (0.04 inches) threshold annually.Koblenz enjoys an average of 3495 hours of sunshine throughout the year, and daylight varies from 8 hours 28 minutes to 15 hours 54 minutes per day.

Monthly average temperatures in Koblenz, Aargau, Switzerland §

The warmest months in Koblenz are June, July and August, with daily mean temperatures ranging from 19 to 20 °C (66 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 3 °C (34 - 39 °F) throughout the day. On average each year, Koblenz experiences 44 days above 25 °C (77.0 °F) and 68 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Koblenz, Aargau, Switzerland.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 16°C
(61°F)		 18°C
(65°F)		 21°C
(70°F)		 26°C
(80°F)		 30°C
(86°F)		 34°C
(94°F)		 35°C
(95°F)		 34°C
(94°F)		 29°C
(84°F)		 23°C
(73°F)		 20°C
(68°F)		 14°C
(57°F)
Mean maximum 10°C
(51°F)		 15°C
(60°F)		 18°C
(66°F)		 24°C
(75°F)		 27°C
(81°F)		 29°C
(85°F)		 32°C
(89°F)		 32°C
(89°F)		 27°C
(81°F)		 21°C
(70°F)		 16°C
(61°F)		 13°C
(55°F)
Average high 4°C
(39°F)		 7°C
(45°F)		 11°C
(52°F)		 16°C
(60°F)		 18°C
(65°F)		 24°C
(75°F)		 25°C
(78°F)		 25°C
(77°F)		 20°C
(69°F)		 15°C
(59°F)		 8°C
(46°F)		 5°C
(41°F)
Daily mean 1°C
(34°F)		 3°C
(39°F)		 6°C
(43°F)		 10°C
(50°F)		 13°C
(56°F)		 19°C
(66°F)		 20°C
(68°F)		 19°C
(67°F)		 15°C
(60°F)		 10°C
(51°F)		 5°C
(41°F)		 3°C
(37°F)
Average low -1°C
(30°F)		 1°C
(33°F)		 2°C
(35°F)		 5°C
(41°F)		 9°C
(48°F)		 14°C
(57°F)		 15°C
(59°F)		 15°C
(59°F)		 11°C
(52°F)		 7°C
(44°F)		 2°C
(37°F)		 0°C
(33°F)
Mean minimum -7°C
(20°F)		 -5°C
(23°F)		 -4°C
(24°F)		 -2°C
(28°F)		 3°C
(38°F)		 8°C
(47°F)		 10°C
(50°F)		 9°C
(48°F)		 4°C
(40°F)		 1°C
(35°F)		 -2°C
(28°F)		 -5°C
(24°F)
Minimum -15°C
(6°F)		 -10°C
(14°F)		 -12°C
(11°F)		 -4°C
(25°F)		 -1°C
(31°F)		 6°C
(44°F)		 8°C
(47°F)		 7°C
(45°F)		 2°C
(35°F)		 -1°C
(31°F)		 -4°C
(26°F)		 -6°C
(21°F)

Compare climate in Koblenz with other places

Compare temperature, precipitation, sunshine, UV index in Koblenz, Aargau, Switzerland with other places around the world.

Monthly average precipitation in Koblenz, Aargau, Switzerland §

Koblenz usually has the most precipitation in May, June and August, with an average of 15 rainy days and 135 mm (5.3 inches) of precipitation per month.The driest months in Koblenz are February, April and November. On average, 68 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Koblenz, Aargau, Switzerland.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) 91 (3.6) 76 (3.0) 88 (3.5) 60 (2.4) 132 (5.2) 133 (5.2) 128 (5.1) 141 (5.5) 82 (3.2) 92 (3.6) 67 (2.7) 125 (4.9)
Average precipitation days (≥ 1 mm) 11 11 14 10 16 16 16 15 12 13 12 18

Monthly sunshine hours in Koblenz, Aargau, Switzerland §

The sunniest months in Koblenz are June, July and August, when the sun shines an average of 12 hours 46 minutes a day.Least sunny months in Koblenz: January, November and December receive an average of 5 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Koblenz, Aargau, Switzerland.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 144 215 287 355 362 383 412 379 321 269 198 165
Mean daily daylight hours 8h 54m 10h 14m 11h 56m 13h 39m 15h 8m 15h 54m 15h 30m 14h 10m 12h 31m 10h 48m 9h 16m 8h 28m

Solar UV radiation in Koblenz, Aargau, Switzerland §

Koblenz experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure.January, November 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 Koblenz UV Index data.

Average daily maximum UV levels by month for Koblenz, Aargau, Switzerland.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) 2 3 5 6 8 9 9 8 6 4 2 1