San Marcos Weather in August

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

The climate in San Marcos during August can be summarized as hot and very dry.

August is in the summer in San Marcos and is typically the warmest month of the year. Daytime maximum temperatures average around a comfortable 29°C (84°F), whilst at night 18°C (65°F) is normal.

San Marcos weather averages (imperial / metric)
Daytime temperature 29°C 84.2°F
Nightly temperature 18.2°C 64.8°F
Average temperature 23.6°C 74.5°F
Daily sunshine 10.9 hrs
Avg rainfall 4 mm 0.1 ins
Rainy days 1 days
Sea temperature 20.5°C 69°F
Humidity 69%
Windspeed 14kph 9 mph

On average August is the 3rd driest month of the year in San Marcos with around 4mm 0.1 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 10.9 hours of sunshine per day.

August temperatures in San Marcos

San Marcos average temperature in August

August rainfall

San Marcos average rain in August

August hourly sunshine

San Marcos average rain in August

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 August 2024.

Other monthly averages

Best places to visit in August

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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