Montclair Weather in September

What's the weather like in Montclair (California) in September 2024?

The climate in Montclair during September can be summarized as warm and dry.

September is in the fall / autumn in Montclair and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 30°C (87°F), whilst at night 14°C (58°F) is normal.

Montclair weather averages (imperial / metric)
Daytime temperature 30.4°C 86.7°F
Nightly temperature 14.4°C 57.9°F
Average temperature 22.4°C 72.3°F
Daily sunshine 10.2 hrs
Avg rainfall 10 mm 0.4 ins
Rainy days 2 days
Sea temperature 19.6°C 67.3°F
Humidity 63%
Windspeed 12.6kph 8 mph

On average September is the 6th driest month of the year in Montclair with around 10mm 0.4 inches of rain making it a dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.2 hours of sunshine per day.

September temperatures in Montclair

Montclair average temperature in September

September rainfall

Montclair average rain in September

September hourly sunshine

Montclair 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 Montclair in September 2024.