Half Moon Bay Weather in July

What's the weather like in Half Moon Bay (California) in July 2025?

The climate in Half Moon Bay during July can be summarized as mild and very dry.

July is in the summer in Half Moon Bay and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 11°C (53°F) is normal.

Half Moon Bay weather averages (imperial / metric)
Daytime temperature 21.8°C 71.2°F
Nightly temperature 11.4°C 52.5°F
Average temperature 16.6°C 61.9°F
Daily sunshine 11.2 hrs
Avg rainfall 2 mm 0.1 ins
Rainy days 1 days
Sea temperature 13.1°C 55.5°F
Humidity 72%
Windspeed 20.2kph 13 mph

On average July is the driest month of the year in Half Moon Bay with around 2mm 0.1 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 11.2 hours of sunshine per day.

July temperatures in Half Moon Bay

Half Moon Bay average temperature in July

July rainfall

Half Moon Bay average rain in July

July hourly sunshine

Half Moon Bay average rain in July

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Half Moon Bay in July 2025.

Other monthly averages

Best places to visit in July

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Half Moon Bay weather stats

Half Moon Bay weather statistics
Hottest month: September 22.5°C 72.5°F
Driest month: July 2mm 0.1ins
Sunniest month: April 11hrs
Coldest month: January 13.4°C 56.1°F
Wettest month: January 146mm 5.7ins
Map showing location of Half Moon Bay (37.46355, -122.42859) Half Moon Bay map pin © Google

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