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Monthly climate in Rueun, Grisons, Switzerland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Rueun features a ice cap climate ET).Temperatures typically range between -8 °C (19 °F) and 12 °C (55 °F) through the year, but rarely can drop to -26 °C (-15 °F) or can rise to as high as 27 °C (82 °F).The average annual precipitation amounts to about 1664 mm (65.5 inches) and receives 190 rainy days on the 1 mm (0.04 inches) threshold annually.Rueun enjoys an average of 3508 hours of sunshine throughout the year, and daylight varies from 8 hours 35 minutes to 15 hours 47 minutes per day.

Monthly average temperatures in Rueun, Grisons, Switzerland §

The warmest months in Rueun are June, July and August, with daily mean temperatures ranging from 11 to 12 °C (53 - 55 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -4 °C (19 - 25 °F) throughout the day. On average each year, Rueun experiences 1 days above 25 °C (77.0 °F) and 183 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rueun, 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 6°C
(44°F)		 9°C
(48°F)		 13°C
(56°F)		 15°C
(60°F)		 22°C
(72°F)		 27°C
(82°F)		 27°C
(80°F)		 24°C
(76°F)		 21°C
(70°F)		 17°C
(62°F)		 13°C
(56°F)		 6°C
(43°F)
Mean maximum 2°C
(36°F)		 7°C
(44°F)		 10°C
(50°F)		 13°C
(56°F)		 18°C
(65°F)		 22°C
(71°F)		 24°C
(75°F)		 23°C
(74°F)		 19°C
(67°F)		 14°C
(58°F)		 9°C
(48°F)		 4°C
(40°F)
Average high -3°C
(26°F)		 -0°C
(32°F)		 3°C
(37°F)		 6°C
(44°F)		 10°C
(51°F)		 17°C
(62°F)		 17°C
(64°F)		 17°C
(63°F)		 14°C
(57°F)		 9°C
(49°F)		 2°C
(37°F)		 -3°C
(27°F)
Daily mean -8°C
(19°F)		 -4°C
(25°F)		 -2°C
(29°F)		 2°C
(35°F)		 6°C
(43°F)		 11°C
(53°F)		 12°C
(55°F)		 12°C
(54°F)		 9°C
(48°F)		 5°C
(40°F)		 -1°C
(30°F)		 -6°C
(22°F)
Average low -11°C
(12°F)		 -8°C
(17°F)		 -6°C
(21°F)		 -3°C
(27°F)		 1°C
(35°F)		 6°C
(44°F)		 8°C
(46°F)		 8°C
(46°F)		 4°C
(40°F)		 1°C
(34°F)		 -5°C
(23°F)		 -9°C
(15°F)
Mean minimum -20°C
(-4°F)		 -19°C
(-1°F)		 -16°C
(4°F)		 -12°C
(10°F)		 -5°C
(23°F)		 0°C
(33°F)		 4°C
(39°F)		 2°C
(37°F)		 -3°C
(26°F)		 -4°C
(24°F)		 -16°C
(4°F)		 -20°C
(-3°F)
Minimum -26°C
(-15°F)		 -24°C
(-11°F)		 -24°C
(-11°F)		 -21°C
(-6°F)		 -10°C
(14°F)		 -2°C
(29°F)		 3°C
(38°F)		 1°C
(35°F)		 -10°C
(15°F)		 -8°C
(18°F)		 -20°C
(-4°F)		 -25°C
(-13°F)

Compare climate in Rueun with other places

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

Monthly average precipitation in Rueun, Grisons, Switzerland §

Rueun usually has the most precipitation in June, July and August, with an average of 19 rainy days and 191 mm (7.5 inches) of precipitation per month.The driest months in Rueun are January, February and April. On average, 92 mm (3.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rueun, 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) 107 (4.2) 73 (2.9) 109 (4.3) 95 (3.7) 150 (5.9) 158 (6.2) 180 (7.1) 234 (9.2) 152 (6.0) 153 (6.0) 108 (4.3) 145 (5.7)
Average precipitation days (≥ 1 mm) 11 12 16 13 21 19 20 20 15 12 13 18

Monthly sunshine hours in Rueun, Grisons, Switzerland §

The sunniest months in Rueun are June, July and August, when the sun shines an average of 12 hours 29 minutes a day.Least sunny months in Rueun: January, November and December receive an average of 6 hours 4 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rueun, 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 168 228 302 344 354 380 403 364 302 269 201 188
Mean daily daylight hours 9h 0m 10h 18m 11h 56m 13h 36m 15h 3m 15h 47m 15h 23m 14h 7m 12h 30m 10h 50m 9h 21m 8h 35m

Solar UV radiation in Rueun, Grisons, Switzerland §

Rueun 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 Rueun UV Index data.

Average daily maximum UV levels by month for Rueun, 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