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.