Ferndale Weather in September

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

The climate in Ferndale during September can be summarized as mild and dry.

September is in the fall / autumn in Ferndale and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 18°C (63°F), whilst at night 10°C (50°F) is normal.

Ferndale weather averages (imperial / metric)
Daytime temperature 17.5°C 63.4°F
Nightly temperature 10°C 49.9°F
Average temperature 13.7°C 56.7°F
Daily sunshine 8.2 hrs
Avg rainfall 29 mm 1.1 ins
Rainy days 4 days
Sea temperature 13.9°C 57°F
Humidity 69%
Windspeed 12.6kph 8 mph

On average September is the 4th driest month of the year in Ferndale with around 29mm 1.1 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.2 hours of sunshine per day.

September temperatures in Ferndale

Ferndale average temperature in September

September rainfall

Ferndale average rain in September

September hourly sunshine

Ferndale 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 Ferndale in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Ferndale weather stats

Ferndale weather statistics
Hottest month: August 17.2°C 63°F
Driest month: July 3mm 0.1ins
Sunniest month: April 9.2hrs
Coldest month: January 12.1°C 53.8°F
Wettest month: November 255mm 10ins
Map showing location of Ferndale (40.57624, -124.26394) Ferndale map pin © Google

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