San Marcos Weather in May

What's the weather like in San Marcos (California) in May 2024?

The climate in San Marcos during May can be summarized as mild and dry.

May is in the spring in San Marcos and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a comfortable 23°C (73°F), whilst at night 13°C (55°F) is normal.

San Marcos weather averages (imperial / metric)
Daytime temperature 22.8°C 73°F
Nightly temperature 12.7°C 54.8°F
Average temperature 17.7°C 63.9°F
Daily sunshine 9.4 hrs
Avg rainfall 10 mm 0.4 ins
Rainy days 2 days
Sea temperature 16.6°C 61.8°F
Humidity 66%
Windspeed 14.8kph 9 mph

On average May is the 6th driest month of the year in San Marcos with around 10mm 0.4 inches of rain making it a dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.4 hours of sunshine per day.

May temperatures in San Marcos

San Marcos average temperature in May

May rainfall

San Marcos average rain in May

May hourly sunshine

San Marcos 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 San Marcos 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

San Marcos weather stats

San Marcos weather statistics
Hottest month: August 28.7°C 83.7°F
Driest month: July 1mm 0ins
Sunniest month: August 10.9hrs
Coldest month: January 17.7°C 63.9°F
Wettest month: January 73mm 2.9ins
Map showing location of San Marcos (33.14337, -117.16614) San Marcos map pin © Google

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