St. Gallen
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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.

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%

St. Gallen Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in St. Gallen - and find the best time to visit.

Best Places in Switzerland in August

Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in August →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

St. Gallen 3-Day Forecast

More climate data for St. Gallen

Popular in August

Where to go in August - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.