Crescent City weather in September 2025

Expect 70°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Crescent City in September. Check more long-term weather averages for Crescent City in September before you book your next holiday to California in 2025/2026.

  • 70°F maximum daytime temperature in September in Crescent City70
    70°F max day temperature
  • 8 hours of sunshine per day
  • 5 days with some rainfall in September in Crescent City5
    5 days with some rainfall
  • 50°F minimum night-time temperature in September in Crescent City50
    50°F min night temperature
  • 12 hours of daylight per day in September in Crescent City12
    12 hours of daylight per day
  • No heat & humidity in September in Crescent City0
    No heat & humidity
  • 1.9 inches monthly rainfall in September in Crescent City1.9
    1.9 inches of monthly rainfall
  • UV (maximum) index 6 (High) in September in Crescent City6
    6 (High) UV index
  • 54°F sea temperature in September in Crescent City54
    54°F sea temperature

More about Crescent City

Crescent City by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for California

TUI: up to 7% off holidays booked online

  • Book online with TUI & save up to 7% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost
Go to TUI deal >>

View all TUI offers

TUITUI deal finder

The September weather guide for California (Crescent City) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

Back to top

More about California

How hot is it in Crescent City in September?

Daytime temperatures usually reach 70°F in Crescent City in September, falling to 50°F at night.

How sunny is it in Crescent City in September?

There are normally 8 hours of bright sunshine each day in Crescent City in September - that's 67% of daylight hours.

How warm is the sea around Crescent City in September?

The average sea temperature around Crescent City in September is 54°F.

Does it rain in Crescent City in September?

There are usually 5 days with some rain in Crescent City in September and the average monthly rainfall is 1.9 inches.

Crescent City September sunrise & sunset times

Browse the sunrise and sunset times for Crescent City in September 2025. Select a month to view Crescent City sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:43 18:49
Monday, 15th September 2025 05:57 18:25
Tuesday, 30th September 2025 06:13 17:59

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^