Ernen Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Ernen.
Climate overview of Ernen
The climate in Ernen, Canton of Valais, Switzerland, is marked by large temperature swings across the seasons, ranging from 16°C (61°F) in July to -5°C (23°F) in January.
Rain/snowfall is high, totalling around 1910 mm (75 in) per year. August is the wettest month and February the driest. The city also experiences a distinct rainy season from May to August. July is the sunniest month, averaging 7.3 hours of sunshine per day.
Ernen Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ernen — and find the best time to visit.
Monthly Temperature in Ernen
In Ernen, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a moderate 16°C (61°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 6°C (43°F) in July to around -12°C (10°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Ernen
Ernen experiences significant rain/snowfall throughout the year, averaging 1910 mm (75 in) of precipitation annually. While rainfall varies throughout the year, each season offers its own charm. August brings wetter days averaging 196 mm (7.7 in) of precipitation, spread over 19 rainy days.
In contrast, the driest month February experiences a drier climate, with about 116 mm (4.6 in) of snowfall spread across 15 snowy days. For more details, please visit our Ernen Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
Sunshine Hours in Ernen
Seasonal changes in sunshine hours are quite dramatic in Ernen. While July receives considerable daily sunshine with up to 7.3 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Ernen by Month
The relative humidity is high throughout the year in Ernen.
The city experiences its highest humidity in November, reaching 83%. In April, the humidity drops to its lowest level at 70%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Ernen
Be prepared for heavier rainfall during May, June, July, August, September, October and November, the wettest period of the year. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Ernen
What is the best time to visit Ernen?
Ernen has a distinct rainy season from May to August.
What temperatures can I expect in Ernen?
Daytime highs range from -5°C (23°F) in January to 16°C (61°F) in July. Nighttime lows range from -12°C (10°F) to 6°C (43°F). Temperatures vary considerably through the year.
How much rain does Ernen get?
Annual rainfall is around 1910 mm (75 in). August is the wettest month with 196 mm (7.7 in), while February is the driest with 116 mm (4.6 in).
How sunny is Ernen?
Ernen receives around 1,580 hours of sunshine per year. July is the sunniest month with 219 hours, while December is the cloudiest with just 51 hours.
Ernen 3-Day Forecast
Ernen 3-Day Forecast
Ernen on the map
Ernen is highlighted — select any city to see its climate.
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