Semily Weather in May
What's the weather like in Semily (Liberecký) in May 2026?
The climate in Semily during May can be summarized as mild and reasonably dry.
May is in the spring in Semily 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 (44°F) is normal.
| Daytime temperature | 16.4°C 61.5°F |
|---|---|
| Nightly temperature | 6.6°C 43.9°F |
| Average temperature | 11.5°C 52.7°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 79 mm 3.1 ins |
| Rainy days | 14 days |
| Sea temperature | 12.4°C 54.3°F |
| Humidity | 74% |
| Windspeed | 16.9kph 11 mph |
On average May is the 5th wettest month of the year in Semily with around 79mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
May temperatures in Semily
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 Semily in May 2025.
Other monthly averages
Semily weather stats
| Hottest month: | July | 20.9°C 69.6°F |
|---|---|---|
| Driest month: | April | 54mm 2.1ins |
| Sunniest month: | August | 7hrs |
| Coldest month: | January | -0.6°C 30.9°F |
| Wettest month: | July | 90mm 3.5ins |
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