Santa Monica weather in September 2020

  • 27°C maximum daytime temperature in September in Santa Monica27
    27°C max day temperature
  • 9 hours of sunshine per day
  • 2 days with some rainfall in September in Santa Monica2
    2 days with some rainfall
  • 17°C minimum night-time temperature in September in Santa Monica17
    17°C min night temperature
  • 12 hours of daylight per day in September in Santa Monica12
    12 hours of daylight per day
  • Low heat & humidity in September in Santa MonicaL
    Low heat & humidity
  • 7 mm monthly rainfall in September in Santa Monica7
    7 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Santa Monica8
    8 (Very High) UV index
  • 19°C sea temperature in September in Santa Monica19
    19°C sea temperature
  • Top deals & discounts
  • Santa Monica weather overview
  • Santa Monica climate averages by month
  • More destinations
  • Best time to go to Santa Monica
  • Santa Monica 5-day weather forecast

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

The September weather guide for Santa Monica, California 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.

  • Book low fares on Virgin Atlantic flights to Los Angeles
  • Depart from London Heathrow Airport
  • Return flights to Los Angeles from £269

Expires at 23:59 on Monday 3rd Feb 2020 · View all Virgin Atlantic offers

Virgin AtlanticVirgin Atlantic destinations

How hot is it in Santa Monica in September?

Daytime temperatures usually reach 27°C in Santa Monica in September with low heat and humidity, falling to 17°C at night.

How sunny is it in Santa Monica in September?

There are normally 9 hours of bright sunshine each day in Santa Monica in September - that's 74% of daylight hours.

How warm is the sea around Santa Monica in September?

The average sea temperature around Santa Monica in September is 19°C.

Does it ever rain in Santa Monica in September?

There are usually 2 days with some rain in Santa Monica in September and the average monthly rainfall is 7mm.

Santa Monica sunrise & sunset times for September 2020

Browse the sunrise & sunset times for Santa Monica in September 2020. Select a month to view Santa Monica sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2020 06:28 19:19
Tuesday, 15th September 2020 06:38 19:00
Wednesday, 30th September 2020 06:48 18:39
  • Book low fares on Virgin Atlantic flights to San Francisco
  • Depart from London Heathrow Airport
  • Return flights to San Francisco from £279

Expires at 23:59 on Monday 3rd Feb 2020 · View all Virgin Atlantic offers

Virgin AtlanticVirgin Atlantic destinations

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

Discover more about California

Where's hot in California in September?

Below are average maximum temperatures at popular destinations in California in September. Select a destination to see more weather parameters.

More destinations & map >>

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.