nomadseason

Monthly climate in Arosa, Grisons, Switzerland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Arosa features a ice cap climate ET).Temperatures typically range between -9 °C (16 °F) and 11 °C (53 °F) through the year, but rarely can drop to -30 °C (-21 °F) or can rise to as high as 26 °C (79 °F).The average annual precipitation amounts to about 1493 mm (58.8 inches) and receives 192 rainy days on the 1 mm (0.04 inches) threshold annually.Arosa enjoys an average of 3581 hours of sunshine throughout the year, and daylight varies from 8 hours 36 minutes to 15 hours 45 minutes per day.

Monthly average temperatures in Arosa, Grisons, Switzerland §

The warmest months in Arosa are June, July and August, with daily mean temperatures ranging from 10 to 11 °C (51 - 53 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -9 to -6 °C (16 - 22 °F) throughout the day. On average each year, Arosa experiences 0 days above 25 °C (77.0 °F) and 195 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Arosa, Grisons, 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 5°C
(40°F)		 9°C
(48°F)		 11°C
(52°F)		 15°C
(59°F)		 21°C
(69°F)		 26°C
(79°F)		 25°C
(78°F)		 23°C
(74°F)		 20°C
(68°F)		 16°C
(61°F)		 12°C
(55°F)		 4°C
(40°F)
Mean maximum 1°C
(35°F)		 6°C
(43°F)		 9°C
(48°F)		 12°C
(54°F)		 17°C
(62°F)		 20°C
(69°F)		 22°C
(72°F)		 22°C
(72°F)		 18°C
(65°F)		 13°C
(56°F)		 8°C
(47°F)		 4°C
(39°F)
Average high -4°C
(24°F)		 -1°C
(30°F)		 2°C
(35°F)		 6°C
(42°F)		 9°C
(49°F)		 16°C
(60°F)		 16°C
(62°F)		 16°C
(61°F)		 12°C
(55°F)		 8°C
(47°F)		 1°C
(35°F)		 -3°C
(26°F)
Daily mean -9°C
(16°F)		 -6°C
(22°F)		 -3°C
(27°F)		 1°C
(34°F)		 5°C
(41°F)		 10°C
(51°F)		 11°C
(53°F)		 11°C
(52°F)		 7°C
(46°F)		 3°C
(39°F)		 -3°C
(27°F)		 -7°C
(19°F)
Average low -13°C
(9°F)		 -10°C
(14°F)		 -8°C
(18°F)		 -4°C
(26°F)		 1°C
(33°F)		 5°C
(42°F)		 7°C
(44°F)		 7°C
(44°F)		 3°C
(38°F)		 -0°C
(32°F)		 -7°C
(20°F)		 -11°C
(12°F)
Mean minimum -23°C
(-8°F)		 -20°C
(-5°F)		 -18°C
(-1°F)		 -15°C
(6°F)		 -7°C
(21°F)		 -1°C
(31°F)		 2°C
(37°F)		 1°C
(34°F)		 -5°C
(23°F)		 -6°C
(22°F)		 -17°C
(2°F)		 -22°C
(-7°F)
Minimum -30°C
(-21°F)		 -26°C
(-14°F)		 -26°C
(-14°F)		 -24°C
(-11°F)		 -13°C
(9°F)		 -2°C
(28°F)		 2°C
(36°F)		 -0°C
(31°F)		 -11°C
(13°F)		 -9°C
(16°F)		 -21°C
(-5°F)		 -27°C
(-17°F)

Compare climate in Arosa with other places

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

Monthly average precipitation in Arosa, Grisons, Switzerland §

Arosa usually has the most precipitation in May, July and August, with an average of 21 rainy days and 170 mm (6.7 inches) of precipitation per month.The driest months in Arosa are January, February and April. On average, 82 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Arosa, Grisons, 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) 92 (3.6) 65 (2.6) 92 (3.6) 87 (3.4) 161 (6.3) 147 (5.8) 152 (6.0) 197 (7.8) 134 (5.3) 133 (5.3) 103 (4.0) 129 (5.1)
Average precipitation days (≥ 1 mm) 11 12 16 14 23 19 20 20 16 12 13 16

Monthly sunshine hours in Arosa, Grisons, Switzerland §

The sunniest months in Arosa are June, July and August, when the sun shines an average of 12 hours 37 minutes a day.Least sunny months in Arosa: January, November and December receive an average of 6 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Arosa, Grisons, 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 173 235 308 348 361 386 407 368 308 277 211 194
Mean daily daylight hours 9h 1m 10h 18m 11h 56m 13h 36m 15h 1m 15h 45m 15h 22m 14h 6m 12h 30m 10h 50m 9h 22m 8h 36m

Solar UV radiation in Arosa, Grisons, Switzerland §

Arosa experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure.January, November 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 Arosa UV Index data.

Average daily maximum UV levels by month for Arosa, Grisons, 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 4 7 8 9 10 10 9 7 5 3 2