Solothurn Weather in September

September in Solothurn sees daytime temperatures around 20°C (68°F) and lows of 10°C (50°F) at night. With around 114 mm (4.5 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Solothurn in September

You can expect rain on around 13 days based on historical patterns, with 114 mm (4.5 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Solothurn in September

Solothurn in September gets highs of 20°C (68°F) during the day and drops to 10°C (50°F) at night. Conditions are often most pleasant around the middle of the day. With overnight lows of 10°C (50°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Solothurn in September

You can expect a moderate amount of sunlight, with approximately 176 hours. This means a pleasant mix of sun and overcast.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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• January
• February
• March
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• May
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• August

• September
• October
• November
• December

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

Solothurn Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 44%  

Precipitation 114 mm (4.5 in)  

Rainy days 13 days  

Humidity 79% *  

Sunshine 176 hours *  

Percentage Sunshine 49% *  

* Data from: Bern, Switzerland (29 KM, 18 Miles).

What to Wear in Solothurn 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Solothurn in September

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

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 Solothurn's climate page.

More climate data for Solothurn

Temperature Rainfall Sunshine Humidity

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