Herisau Weather in August

Thinking of visiting Herisau in August? Expect high temperatures reaching 23°C (73°F) during the day, dropping to 13°C (55°F) at night. Heavy showers are common during the rainy season.

Rainfall in Herisau in August

Herisau is in the rainy season in August, with rain on around 18 days and an average of 216 mm (8.5 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.

Temperature in Herisau in August

August in Herisau brings typical temperatures with highs around 23°C (73°F) and lows of 13°C (55°F). August is known for being in the summer season. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Herisau 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.

For Herisau itself, September generally stands 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.