Sankt Gallen Weather in September

During September, Sankt Gallen experiences moderate daytime temperatures of 18°C (64°F) and cooler nights around 7°C (45°F). Expect quite a bit of rainfall. Around 144 mm (5.7 in) is typical.

Rainfall in Sankt Gallen in September

Analyzing past climate data, one can expect approximately 12 days of rain, averaging 144 mm (5.7 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Sankt Gallen in September

If you're visiting Sankt Gallen in September, expect highs of 18°C (64°F) and overnight lows around 7°C (45°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows around 7°C (45°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Sankt Gallen in September

The month experiences a moderate amount of sunlight, with 150 hours of sunshine. This provides a nice balance between sunshine and clouds.

If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for Sankt Gallen.

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

Sankt Gallen Temperature in September

Min Temperature 7°C (45°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 41%  

Precipitation 144 mm (5.7 in)  

Rainy days 12 days  

Humidity 74% *  

Sunshine 150 hours *  

Percentage Sunshine *  

* Data from: Mariazell, Austria (52 KM, 32 Miles).

What to Wear in Sankt Gallen in September

For Sankt Gallen in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Sankt Gallen in September

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

Swimming

6/10

Cycling

5/10

Walking

5/10

Camping

3/10

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 Austria, check out our Sankt Gallen's climate page.

More climate data for Sankt Gallen

Temperature Rainfall Sunshine Humidity

See the full Sankt Gallen climate overview or explore weather in Austria.