Sierre Weather in September

September in Sierre brings moderate temperatures, with highs of 14°C (57°F) and nights dropping to 3°C (37°F). Rainfall is on the higher side this month, averaging around 121 mm (4.8 in), so keep a rain jacket handy.

Rainfall in Sierre in September

Past climate data indicates that roughly 14 days will see rain, totalling around 121 mm (4.8 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Sierre in September

September in Sierre brings moderate temperatures, with highs of 14°C (57°F) and nights around 3°C (37°F). The difference between afternoon and evening temperatures is usually noticeable. At 3°C (37°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Sierre in September

The days are predominantly sunny, with an estimated total of around 210 hours of sunshine. Despite the cool temperatures, these sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Sierre in September

September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.

For Sierre itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.