Herisau Weather in May
What's the weather like in Herisau (Appenzell Ausserrhoden) in May 2024?
The climate in Herisau during May can be summarized as mild and damp.
May is in the spring in Herisau and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 16°C (62°F), whilst at night 7°C (45°F) is normal.
| Daytime temperature | 16.4°C 61.5°F |
|---|---|
| Nightly temperature | 7°C 44.6°F |
| Average temperature | 11.7°C 53.1°F |
| Daily sunshine | 6.4 hrs |
| Avg rainfall | 108 mm 4.3 ins |
| Rainy days | 18 days |
| Sea temperature | 15.7°C 60.2°F |
| Humidity | 71% |
| Windspeed | 7.9kph 5 mph |
On average May is the 4th wettest month of the year in Herisau with around 108mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.4 hours of sunshine per day.
May temperatures in Herisau
May rainfall
May hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Herisau in May 2024.
Other monthly averages
Herisau weather stats
| Hottest month: | July | 21.9°C 71.4°F |
|---|---|---|
| Driest month: | February | 60mm 2.4ins |
| Sunniest month: | July | 8hrs |
| Coldest month: | January | 1.6°C 34.9°F |
| Wettest month: | July | 130mm 5.1ins |
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