Big Sur weather in August 2026

Expect daytime maximum temperatures of 23°C in Big Sur, California in August based on long-term weather averages. There are 10 hours of sunshine per day on average.

  • 23°C maximum daytime temperature in August in Big Sur23
    23°C max day temperature
  • 10 hours of sunshine per day
  • 2 days with some rainfall in August in Big Sur2
    2 days with some rainfall
  • 10°C minimum night-time temperature in August in Big Sur10
    10°C min night temperature
  • 13 hours of daylight per day in August in Big Sur13
    13 hours of daylight per day
  • No heat & humidity in August in Big Sur0
    No heat & humidity
  • 5 mm monthly rainfall in August in Big Sur5
    5 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Big Sur9
    9 (Very High) UV index
  • 15°C sea temperature in August in Big Sur15
    15°C sea temperature

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The August weather guide for California (Big Sur) 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Big Sur in August?

Daytime temperatures usually reach 30°C in Big Sur in August with moderate heat and humidity, falling to 18°C at night.

How sunny is it in Big Sur in August?

There are normally 11 hours of bright sunshine each day in Big Sur in August - that's 83% of daylight hours.

Does it ever rain in Big Sur in August?

There is usually 1 day with some rain in Big Sur in August and the average monthly rainfall is 4mm.

Big Sur August sunrise & sunset times

Browse the sunrise and sunset times for Big Sur in August 2026. Select a month to view Big Sur sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st August 2026 05:14 19:12
Sunday, 16th August 2026 05:26 18:56
Monday, 31st August 2026 05:38 18:36

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