Thun Weather in September

Thun in September sees moderate temperatures, with highs around 17°C (63°F) and overnight lows of 7°C (45°F). Rainfall is fairly high at around 152 mm (6 in) on average, so pack waterproofs just in case.

Rainfall in Thun in September

The climate data from previous years indicates about 13 days of rain, averaging 152 mm (6 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Thun in September

Daytime temperatures in Thun reach 17°C (63°F) in September, dropping to 7°C (45°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 7°C (45°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Thun in September

The month brings about 149 hours of sunlight, offering a comfortable mix of sun and overcast.

For Thun itself, August generally stands out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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

Thun Temperature in September

Min Temperature 7°C (45°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 44%  

Precipitation 152 mm (6 in)  

Rainy days 13 days  

Humidity 80% *  

Sunshine 149 hours *  

Percentage Sunshine 52% *  

* Data from: Interlaken, Switzerland (21 KM, 13 Miles).

What to Wear in Thun in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. It's going to pour! Pack a good poncho and prepare for very wet conditions. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Thun 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

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 Thun's climate page.

More climate data for Thun

Temperature Rainfall Sunshine Humidity

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