Sion Weather in August

August in Sion sees daytime temperatures around 19°C (66°F) and lows of 7°C (45°F) at night. With around 153 mm (6 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Sion in August

Rain is expected on roughly 17 days, totalling around 153 mm (6 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Sion in August

Daytime highs in Sion in August reach 19°C (66°F), with nights around 7°C (45°F). August is part of the summer season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 7°C (45°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Sion in August

The month enjoys around 248 hours of sunshine, creating mostly sunny days with good weather conditions.

Wind Speed in Sion in August

August 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.

So this is a great month to visit if you prefer dry days with pleasant temperatures.