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Monthly climate in Riddes, Valais, Switzerland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Riddes features a ice cap climate ET).Temperatures typically range between -8 °C (18 °F) and 14 °C (58 °F) through the year, but rarely can drop to -29 °C (-21 °F) or can rise to as high as 28 °C (83 °F).The average annual precipitation amounts to about 1752 mm (69.0 inches) and receives 177 rainy days on the 1 mm (0.04 inches) threshold annually.Riddes enjoys an average of 3649 hours of sunshine throughout the year, and daylight varies from 8 hours 40 minutes to 15 hours 42 minutes per day.

Monthly average temperatures in Riddes, Valais, Switzerland §

The warmest months in Riddes are June, July and August, with daily mean temperatures ranging from 13 to 14 °C (55 - 58 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -4 °C (18 - 26 °F) throughout the day. On average each year, Riddes experiences 3 days above 25 °C (77.0 °F) and 173 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Riddes, Valais, 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 8°C
(46°F)		 12°C
(55°F)		 16°C
(60°F)		 19°C
(66°F)		 24°C
(75°F)		 28°C
(83°F)		 28°C
(82°F)		 27°C
(80°F)		 23°C
(73°F)		 18°C
(65°F)		 16°C
(61°F)		 8°C
(46°F)
Mean maximum 3°C
(38°F)		 9°C
(49°F)		 12°C
(54°F)		 15°C
(60°F)		 20°C
(68°F)		 23°C
(73°F)		 25°C
(78°F)		 26°C
(79°F)		 21°C
(70°F)		 17°C
(62°F)		 12°C
(53°F)		 5°C
(42°F)
Average high -2°C
(28°F)		 2°C
(35°F)		 4°C
(40°F)		 9°C
(48°F)		 12°C
(54°F)		 18°C
(64°F)		 19°C
(67°F)		 19°C
(67°F)		 15°C
(60°F)		 11°C
(52°F)		 4°C
(39°F)		 -2°C
(28°F)
Daily mean -8°C
(18°F)		 -4°C
(26°F)		 -0°C
(31°F)		 4°C
(39°F)		 7°C
(45°F)		 13°C
(55°F)		 14°C
(58°F)		 14°C
(57°F)		 10°C
(50°F)		 6°C
(43°F)		 -1°C
(31°F)		 -6°C
(21°F)
Average low -12°C
(10°F)		 -8°C
(17°F)		 -5°C
(22°F)		 -2°C
(29°F)		 2°C
(36°F)		 7°C
(45°F)		 8°C
(47°F)		 8°C
(47°F)		 5°C
(41°F)		 1°C
(34°F)		 -5°C
(23°F)		 -10°C
(13°F)
Mean minimum -22°C
(-7°F)		 -17°C
(2°F)		 -15°C
(5°F)		 -10°C
(14°F)		 -5°C
(23°F)		 1°C
(34°F)		 4°C
(39°F)		 2°C
(37°F)		 -1°C
(30°F)		 -4°C
(25°F)		 -14°C
(7°F)		 -22°C
(-7°F)
Minimum -26°C
(-15°F)		 -21°C
(-5°F)		 -24°C
(-11°F)		 -17°C
(3°F)		 -14°C
(7°F)		 -3°C
(27°F)		 1°C
(35°F)		 2°C
(36°F)		 -6°C
(22°F)		 -6°C
(22°F)		 -20°C
(-4°F)		 -29°C
(-21°F)

Compare climate in Riddes with other places

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

Monthly average precipitation in Riddes, Valais, Switzerland §

Riddes usually has the most precipitation in May, July and December, with an average of 17 rainy days and 195 mm (7.7 inches) of precipitation per month.The driest months in Riddes are February, April and November. On average, 99 mm (3.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Riddes, Valais, 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) 140 (5.5) 108 (4.3) 135 (5.3) 87 (3.4) 191 (7.5) 177 (7.0) 182 (7.2) 173 (6.8) 113 (4.5) 131 (5.2) 101 (4.0) 213 (8.4)
Average precipitation days (≥ 1 mm) 10 11 15 12 20 18 17 17 15 13 13 16

Monthly sunshine hours in Riddes, Valais, Switzerland §

The sunniest months in Riddes are June, July and August, when the sun shines an average of 12 hours 56 minutes a day.Least sunny months in Riddes: January, November and December receive an average of 6 hours 32 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Riddes, Valais, 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 171 233 299 354 354 390 416 384 325 288 231 199
Mean daily daylight hours 9h 4m 10h 20m 11h 56m 13h 34m 14h 59m 15h 42m 15h 19m 14h 4m 12h 29m 10h 51m 9h 25m 8h 40m

Solar UV radiation in Riddes, Valais, Switzerland §

Riddes 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 Riddes UV Index data.

Average daily maximum UV levels by month for Riddes, Valais, 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