The climate in Paso Robles during September can be summarized as warm and very dry.
September is in the fall / autumn in Paso Robles and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 27°C (80°F), whilst at night 12°C (53°F) is normal.
Daytime temperature | 26.6°C 79.9°F |
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Nightly temperature | 11.6°C 52.9°F |
Average temperature | 19.1°C 66.4°F |
Daily sunshine | 10.3 hrs |
Avg rainfall | 7 mm 0.3 ins |
Rainy days | 2 days |
Sea temperature | 17°C 62.6°F |
Humidity | 71% |
Windspeed | 11.5kph 7 mph |
On average September is the 4th driest month of the year in Paso Robles with around 7mm 0.3 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 10.3 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 Paso Robles in September 2025.
Best places to visit in September
Hottest month: | July | 27.8°C 82°F |
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Driest month: | June | 2mm 0.1ins |
Sunniest month: | April | 11.2hrs |
Coldest month: | December | 14.2°C 57.6°F |
Wettest month: | January | 96mm 3.8ins |