Susten Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Susten.

Climate overview of Susten

Susten, Canton of Valais, Switzerland, experiences significant temperature variation throughout the year. Summers bring daytime highs of 18°C (64°F) in July, while winters cool to -5°C (23°F) in January.

Rain/snowfall is high, totalling around 1566 mm (62 in) per year. June is the wettest month and March the driest. The city also experiences mild summers and very cold winters. The sunniest month is July, with 9.0 hours of sunshine per day on average.

Susten Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Susten - and find the best time to visit.

Monthly Temperature in Susten

Depending on the time of the year, temperatures range from moderate to very cold in Susten. Average maximum daytime temperatures range from a moderate 18°C (64°F) in July, the warmest time of the year, to a very cold -5°C (23°F) during cooler months like January.

At night, you can expect temperatures ranging from 7°C (45°F) in July to around -13°C (9°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Susten

Susten has a relatively rain/snowy climate with high precipitation levels, averaging 1566 mm (62 in) of rain/snowfall annually. Year-round, Susten has a balanced climate with minimal variation in precipitation. The difference between the wettest month, June, with 151 mm (5.9 in), and the driest month, March, with 112 mm (4.4 in), is minimal. For more details, please visit our Susten Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Susten

Seasonal changes in sunshine hours are quite dramatic in Susten. While July receives considerable daily sunshine with up to 9.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.3 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Sion, Switzerland (25 KM, 15 Miles).

Daily hours of sunshine

Data from: Sion, Switzerland (25 KM, 15 Miles).

Humidity in Susten by Month

Best Time to Visit Susten

For the most comfortable conditions available during the year, consider visiting Susten in July and August. Conditions are usually least comfortable in January, February, March, April, May, October, November and December.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: July and August
  • Warmest weather: July and August
  • Most sunshine: July
  • Seasonal pattern: Mild summers and very cold winters
  • Coldest conditions: January, with freezing nights around -13°C (9°F).

Frequently asked questions about the climate in Susten

What is the best time to visit Susten?

July and August typically offer the most optimal weather in Susten. In contrast, January, February, March, April, May, October, November and December tend to have less optimal conditions. Susten has mild summers and very cold winters.

What temperatures can I expect in Susten?

Daytime highs range from -5°C (23°F) in January to 18°C (64°F) in July. Nighttime lows range from -13°C (9°F) to 7°C (45°F). Temperatures vary considerably through the year.

How much rain does Susten get?

Annual rainfall is around 1566 mm (62 in). June is the wettest month with 151 mm (5.9 in), while March is the driest with 112 mm (4.4 in).

How sunny is Susten?

Susten receives around 2,171 hours of sunshine per year. July is the sunniest month with 270 hours, while December is the cloudiest with just 70 hours. Overall, Susten enjoys abundant sunshine.

Susten 3-Day Forecast

Susten on the map

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