The climate in Santa Rosa during July can be summarized as hot and reasonably dry.
July is in the summer in Santa Rosa and is typically the warmest month of the year. Daytime maximum temperatures average around 33°C (91°F), whilst at night 16°C (61°F) is normal.
Daytime temperature | 32.7°C 90.9°F |
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Nightly temperature | 16.1°C 61°F |
Average temperature | 24.4°C 75.9°F |
Daily sunshine | 11.5 hrs |
Avg rainfall | 62 mm 2.4 ins |
Rainy days | 8 days |
Sea temperature | 20.9°C 69.6°F |
Humidity | 47% |
Windspeed | 16.2kph 10 mph |
On average July is the 2nd wettest month of the year in Santa Rosa with around 62mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.5 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 July 2025.
Hottest month: | July | 32.3°C 90.1°F |
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Driest month: | January | 10mm 0.4ins |
Sunniest month: | June | 12.4hrs |
Coldest month: | January | 11.1°C 52°F |
Wettest month: | August | 75mm 3ins |