Crescent City Weather in September

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

The climate in Crescent City during September can be summarized as mild and reasonably dry.

September is in the fall / autumn in Crescent City and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 9°C (48°F) is normal.

Crescent City weather averages (imperial / metric)
Daytime temperature 21.8°C 71.2°F
Nightly temperature 9.1°C 48.4°F
Average temperature 15.4°C 59.8°F
Daily sunshine 9.1 hrs
Avg rainfall 42 mm 1.6 ins
Rainy days 5 days
Sea temperature 13.7°C 56.7°F
Humidity 67%
Windspeed 11.4kph 7 mph

On average September is the 4th driest month of the year in Crescent City with around 42mm 1.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.1 hours of sunshine per day.

September temperatures in Crescent City

Crescent City average temperature in September

September rainfall

Crescent City average rain in September

September hourly sunshine

Crescent City 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 Crescent City 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

Crescent City weather stats

Crescent City weather statistics
Hottest month: August 22.4°C 72.3°F
Driest month: July 10mm 0.4ins
Sunniest month: July 11.1hrs
Coldest month: January 11.2°C 52.2°F
Wettest month: December 287mm 11.3ins
Map showing location of Crescent City (41.75595, -124.20175) Crescent City map pin © Google

Locations nearby

Top United States locations