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Monthly climate in Aristau, Aargau, Switzerland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Aristau features a oceanic climate (Cfb).Temperatures typically range between 1 °C (35 °F) and 20 °C (67 °F) through the year, but rarely can drop to -12 °C (11 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 1444 mm (56.8 inches) and receives 181 rainy days on the 1 mm (0.04 inches) threshold annually.Aristau enjoys an average of 3605 hours of sunshine throughout the year, and daylight varies from 8 hours 31 minutes to 15 hours 51 minutes per day.

Monthly average temperatures in Aristau, Aargau, Switzerland §

The warmest months in Aristau are June, July and August, with daily mean temperatures ranging from 18 to 20 °C (65 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 4 °C (35 - 39 °F) throughout the day. On average each year, Aristau experiences 39 days above 25 °C (77.0 °F) and 53 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Aristau, 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 15°C
(60°F)		 18°C
(65°F)		 20°C
(69°F)		 26°C
(79°F)		 30°C
(86°F)		 34°C
(93°F)		 34°C
(94°F)		 33°C
(91°F)		 28°C
(82°F)		 22°C
(72°F)		 21°C
(70°F)		 13°C
(56°F)
Mean maximum 10°C
(50°F)		 15°C
(59°F)		 18°C
(65°F)		 23°C
(74°F)		 26°C
(80°F)		 28°C
(84°F)		 31°C
(88°F)		 31°C
(88°F)		 26°C
(80°F)		 21°C
(70°F)		 17°C
(62°F)		 12°C
(55°F)
Average high 4°C
(39°F)		 7°C
(45°F)		 11°C
(52°F)		 15°C
(60°F)		 18°C
(64°F)		 23°C
(74°F)		 24°C
(76°F)		 24°C
(76°F)		 20°C
(68°F)		 15°C
(59°F)		 8°C
(47°F)		 5°C
(41°F)
Daily mean 1°C
(35°F)		 4°C
(39°F)		 6°C
(43°F)		 10°C
(50°F)		 13°C
(56°F)		 18°C
(65°F)		 20°C
(67°F)		 19°C
(67°F)		 15°C
(60°F)		 11°C
(52°F)		 5°C
(42°F)		 3°C
(38°F)
Average low -1°C
(31°F)		 1°C
(33°F)		 2°C
(36°F)		 4°C
(40°F)		 9°C
(48°F)		 14°C
(57°F)		 15°C
(59°F)		 15°C
(60°F)		 12°C
(53°F)		 8°C
(46°F)		 3°C
(39°F)		 1°C
(34°F)
Mean minimum -5°C
(23°F)		 -5°C
(23°F)		 -4°C
(25°F)		 -2°C
(29°F)		 3°C
(38°F)		 9°C
(48°F)		 11°C
(51°F)		 10°C
(50°F)		 6°C
(43°F)		 3°C
(38°F)		 -1°C
(31°F)		 -3°C
(26°F)
Minimum -11°C
(13°F)		 -12°C
(11°F)		 -11°C
(13°F)		 -3°C
(26°F)		 0°C
(33°F)		 7°C
(45°F)		 10°C
(50°F)		 8°C
(47°F)		 4°C
(39°F)		 1°C
(35°F)		 -2°C
(28°F)		 -4°C
(25°F)

Compare climate in Aristau with other places

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

Monthly average precipitation in Aristau, Aargau, Switzerland §

Aristau usually has the most precipitation in June, July and August, with an average of 17 rainy days and 160 mm (6.3 inches) of precipitation per month.The driest months in Aristau are February, April and November. On average, 81 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Aristau, 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) 107 (4.2) 87 (3.4) 102 (4.0) 77 (3.0) 146 (5.8) 154 (6.0) 164 (6.4) 162 (6.4) 106 (4.2) 122 (4.8) 78 (3.1) 137 (5.4)
Average precipitation days (≥ 1 mm) 12 12 17 11 17 18 18 17 13 14 13 19

Monthly sunshine hours in Aristau, Aargau, Switzerland §

The sunniest months in Aristau are June, July and August, when the sun shines an average of 12 hours 51 minutes a day.Least sunny months in Aristau: January, November and December receive an average of 6 hours 10 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Aristau, 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 164 227 299 357 369 384 414 383 320 278 218 184
Mean daily daylight hours 8h 56m 10h 16m 11h 56m 13h 38m 15h 6m 15h 51m 15h 27m 14h 9m 12h 30m 10h 48m 9h 18m 8h 31m

Solar UV radiation in Aristau, Aargau, Switzerland §

Aristau 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, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Aristau UV Index data.

Average daily maximum UV levels by month for Aristau, 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 3 2