Paso Robles Weather in September

What's the weather like in Paso Robles (California) in September 2025?

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.

Paso Robles weather averages (imperial / metric)
Daytime temperature 26.6°C 79.9°F
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.

September temperatures in Paso Robles

Paso Robles average temperature in September

September rainfall

Paso Robles average rain in September

September hourly sunshine

Paso Robles average rain in September

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.