Newport Beach weather in August 2025

Expect 24°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Newport Beach in August. Check more long-term weather averages for Newport Beach in August before you book your next holiday to California in 2025/2026.

  • 24°C maximum daytime temperature in August in Newport Beach24
    24°C max day temperature
  • 11 hours of sunshine per day
  • 0 days with some rainfall in August in Newport Beach0
    0 days with some rainfall
  • 17°C minimum night-time temperature in August in Newport Beach17
    17°C min night temperature
  • 13 hours of daylight per day in August in Newport Beach13
    13 hours of daylight per day
  • Low heat & humidity in August in Newport BeachL
    Low heat & humidity
  • 2 mm monthly rainfall in August in Newport Beach2
    2 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Newport Beach10
    10 (Very High) UV index
  • 20°C sea temperature in August in Newport Beach20
    20°C sea temperature

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The August weather guide for California (Newport Beach) 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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More about California

How hot is it in Newport Beach in August?

Daytime temperatures usually reach 24°C in Newport Beach in August, falling to 17°C at night.

How sunny is it in Newport Beach in August?

There are normally 11 hours of bright sunshine each day in Newport Beach in August - that's 79% of daylight hours.

How warm is the sea around Newport Beach in August?

The average sea temperature around Newport Beach in August is 20°C.

Does it ever rain in Newport Beach in August?

There are usually no days with some rain in Newport Beach in August and the average monthly rainfall is 2mm.

Newport Beach August sunrise & sunset times

Browse the sunrise and sunset times for Newport Beach in August 2025. Select a month to view Newport Beach sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:04 18:51
Saturday, 16th August 2025 05:15 18:36
Sunday, 31st August 2025 05:25 18:18

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