The climate in Santa Rosa during May can be summarized as warm and a little damp.
May is in the fall / autumn in Santa Rosa and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 13°C (56°F) is normal.
Daytime temperature | 23.6°C 74.5°F |
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Nightly temperature | 13.4°C 56.1°F |
Average temperature | 18.5°C 65.3°F |
Daily sunshine | 6.8 hrs |
Avg rainfall | 100 mm 3.9 ins |
Rainy days | 6 days |
Sea temperature | 19.7°C 67.5°F |
Humidity | 80% |
Windspeed | 10.4kph 7 mph |
On average May is the 5th driest month of the year in Santa Rosa with around 100mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.8 hours of sunshine per day.
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 Santa Rosa in May 2025.
Hottest month: | January | 32.5°C 90.5°F |
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Driest month: | August | 56mm 2.2ins |
Sunniest month: | November | 9.8hrs |
Coldest month: | June | 20.3°C 68.5°F |
Wettest month: | April | 161mm 6.3ins |