Gossau Weather in September

September in Gossau brings pleasant temperatures, with highs of 19°C (66°F) and nights dropping to 10°C (50°F). Rainfall is on the higher side this month, averaging around 153 mm (6 in), so keep a rain jacket handy.

Rainfall in Gossau in September

Historically, the month has about 13 days of rain, averaging 153 mm (6 in) in total. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Gossau in September

In September, expect pleasant temperatures in Gossau, with highs of 19°C (66°F) and lows of 10°C (50°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows of 10°C (50°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Gossau in September

The month experiences a moderate amount of sunlight, with 155 hours of sunshine. This provides a nice balance between sunshine and clouds.

If your ideal day consists of dry skies and pleasant temperatures, May and September typically offer the best circumstances for Gossau.

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• January
• February
• March
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• May
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• August

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• October
• November
• December

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

Gossau Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 44%  

Precipitation 153 mm (6 in)  

Rainy days 13 days  

Humidity 78% *  

Sunshine 155 hours *  

Percentage Sunshine 44% *  

* Data from: St. Gallen, Switzerland (9 KM, 5 Miles).

What to Wear in Gossau in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. 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 Gossau in September

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

Swimming

6/10

Camping

6/10

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 Gossau's climate page.

More climate data for Gossau

Temperature Rainfall Sunshine Humidity

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