St. Gallen Weather in August

With daytime temperatures of 23°C (73°F) and nighttime lows of 14°C (57°F), August in St. Gallen brings high temperatures during the day. Do keep in mind that August is part of the rainy season, with frequent and often heavy rainfall.

Rainfall in St. Gallen in August

As part of the rainy season, St. Gallen sees around 18 days of rain in August, with an average of 194 mm (7.6 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.

Temperature in St. Gallen in August

Temperatures in St. Gallen in August top out at 23°C (73°F) and drop to 14°C (57°F) overnight. August is part of summer. Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 14°C (57°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in St. Gallen in August

There are approximately 210 hours of sunshine this month, despite being the rainy season. Rain often arrives in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, it could still be a nice time to visit.

If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit St. Gallen.

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

St. Gallen Temperature in August

Min Temperature 14°C (57°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 59%  

Precipitation 194 mm (7.6 in)  

Rainy days 18 days  

Humidity 74%  

Sunshine 210 hours  

Percentage Sunshine 50%  

What to Wear in St. Gallen in August

Pleasant temperatures in August 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! And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in St. Gallen in August

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

Swimming

8/10

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 St. Gallen's climate page.

More climate data for St. Gallen

Temperature Rainfall Sunshine Humidity

See the full St. Gallen climate overview or explore weather in Switzerland.