Big Sur weather in September 2021

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  • 23°C maximum daytime temperature in September in Big Sur23
    23°C max day temperature
  • 9 hours of sunshine per day
  • 2 days with some rainfall in September in Big Sur2
    2 days with some rainfall
  • 9°C minimum night-time temperature in September in Big Sur9
    9°C min night temperature
  • 12 hours of daylight per day in September in Big Sur12
    12 hours of daylight per day
  • No heat & humidity in September in Big Sur0
    No heat & humidity
  • 12 mm monthly rainfall in September in Big Sur12
    12 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Big Sur7
    7 (High) UV index
  • 15°C sea temperature in September in Big Sur15
    15°C sea temperature

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The September weather guide for Big Sur, 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.

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How hot is it in Big Sur in September?

Daytime temperatures usually reach 23°C in Big Sur in September, falling to 9°C at night.

How sunny is it in Big Sur in September?

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

How warm is the sea around Big Sur in September?

The average sea temperature around Big Sur in September is 15°C.

Does it ever rain in Big Sur in September?

There are usually 2 days with some rain in Big Sur in September and the average monthly rainfall is 12mm.

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

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Big Sur sunrise & sunset times for September 2021

Browse the sunrise and sunset times for Big Sur in September 2021. Select a month to view Big Sur sunrise & sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st September 2021 06:39 19:34
Wednesday, 15th September 2021 06:50 19:14
Thursday, 30th September 2021 07:02 18:52
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  • Receive online results within 24-72 hours once test at lab
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