The climate in Santa Rosa during July can be summarized as very hot, humid and a little damp.
July is in the summer in Santa Rosa and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (90°F), whilst at night 24°C (76°F) is normal.
| Daytime temperature | 32.2°C 90°F |
|---|---|
| Nightly temperature | 24.2°C 75.6°F |
| Average temperature | 28.2°C 82.8°F |
| Daily sunshine | 7.2 hrs |
| Avg rainfall | 100 mm 3.9 ins |
| Rainy days | 9 days |
| Sea temperature | 28.8°C 83.9°F |
| Humidity | 81% |
| Windspeed | 15.1kph 9 mph |
On average July is the 6th 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 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.2 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: | April | 32.3°C 90.1°F |
|---|---|---|
| Driest month: | February | 5mm 0.2ins |
| Sunniest month: | January | 8.8hrs |
| Coldest month: | January | 31.6°C 88.9°F |
| Wettest month: | October | 211mm 8.3ins |