Costa Mesa Weather in May

What's the weather like in Costa Mesa (California) in May 2024?

The climate in Costa Mesa during May can be summarized as mild and very dry.

May is in the spring in Costa Mesa and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a comfortable 21°C (69°F), whilst at night 13°C (55°F) is normal.

Costa Mesa weather averages (imperial / metric)
Daytime temperature 20.5°C 68.8°F
Nightly temperature 12.6°C 54.6°F
Average temperature 16.5°C 61.7°F
Daily sunshine 9.5 hrs
Avg rainfall 4 mm 0.2 ins
Rainy days 1 days
Sea temperature 16.6°C 61.8°F
Humidity 69%
Windspeed 13.7kph 9 mph

On average May is the 4th driest month of the year in Costa Mesa with around 4mm 0.2 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 9.5 hours of sunshine per day.

May temperatures in Costa Mesa

Costa Mesa average temperature in May

May rainfall

Costa Mesa average rain in May

May hourly sunshine

Costa Mesa average rain in May

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 Costa Mesa in May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Costa Mesa weather stats

Costa Mesa weather statistics
Hottest month: August 24°C 75.2°F
Driest month: July 1mm 0ins
Sunniest month: August 11.5hrs
Coldest month: January 18°C 64.4°F
Wettest month: January 64mm 2.5ins
Map showing location of Costa Mesa (33.64113, -117.91867) Costa Mesa map pin © Google

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