Newport Beach weather in August 2026

Q: How hot is it in Newport Beach in August?

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

Q: 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 83% of daylight hours.

Q: Does it ever rain in Newport Beach in August?

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

Expect daytime maximum temperatures of 75°F in Newport Beach, California in August based on long-term weather averages. There are 11 hours of sunshine per day on average.

75
75°F max day temperature
11
11 hours of sunshine per day
0
0 days with some rainfall
63
63°F min night temperature
13
13 hours of daylight per day
L
Low heat & humidity
0.1
0.1 inches of monthly rainfall
10
10 (Very High) UV index
68
68°F 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) | Imperial (°F)

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How hot is it in Newport Beach in August?

Daytime temperatures usually reach 86°F in Newport Beach in August with moderate heat and humidity, falling to 64°F 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 83% of daylight hours.

Does it ever rain in Newport Beach in August?

There is usually 1 day with some rain in Newport Beach in August and the average monthly rainfall is 0.2 inches.

Newport Beach August sunrise & sunset times

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

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