Clearlake Weather in May
What's the weather like in Clearlake (California) in May 2025?
The climate in Clearlake during May can be summarized as mild and dry.
May is in the spring in Clearlake and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 7°C (45°F) is normal.
| Daytime temperature | 22.9°C 73.1°F |
|---|---|
| Nightly temperature | 7°C 44.5°F |
| Average temperature | 14.9°C 58.8°F |
| Daily sunshine | 12.1 hrs |
| Avg rainfall | 18 mm 0.7 ins |
| Rainy days | 4 days |
| Sea temperature | 11.8°C 53.2°F |
| Humidity | 65% |
| Windspeed | 17.3kph 11 mph |
On average May is the 5th driest month of the year in Clearlake with around 18mm 0.7 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 12.1 hours of sunshine per day.
May temperatures in Clearlake
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 Clearlake in May 2025.
Other monthly averages
Clearlake weather stats
| Hottest month: | July | 29.7°C 85.5°F |
|---|---|---|
| Driest month: | July | 2mm 0.1ins |
| Sunniest month: | July | 12.6hrs |
| Coldest month: | January | 11.7°C 53.1°F |
| Wettest month: | January | 205mm 8.1ins |
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