Ernen Weather in September

September in Ernen typically sees daytime highs of 12°C (54°F) and nighttime lows of 2°C (36°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Ernen in September

Records from the past 30 years suggest around 15 days of rain, with 170 mm (6.7 in) average for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Ernen in September

September in Ernen brings typical temperatures with highs around 12°C (54°F) and lows of 2°C (36°F). Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. Nights drop to 2°C (36°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Ernen in September

The area experiences a moderate amount of sunshine, with approximately 149 hours of sunlight expected. This means a decent mix of sun and overcast.

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For a detailed overview over the year and the best time to visit Switzerland, check out our Ernen's climate page.

Ernen Temperature in September

Min Temperature 2°C (36°F)  

Max Temperature 12°C (54°F)  

Chance of Rain 50%  

Precipitation 170 mm (6.7 in)  

Rainy days 15 days  

Humidity 80% *  

Sunshine 149 hours *  

Percentage Sunshine 52% *  

* Data from: Interlaken, Switzerland (35 KM, 22 Miles).

What to Wear in Ernen in September

Pack for changing conditions in Ernen in September. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Ernen in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

5/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Switzerland, check out our Ernen's climate page.

More climate data for Ernen

Temperature Rainfall Sunshine Humidity

See the full Ernen climate overview or explore weather in Switzerland.