San Marcos Weather in November

What's the weather like in San Marcos (California) in November 2025?

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

November is in the fall / autumn in San Marcos and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 9°C (48°F) is normal.

San Marcos weather averages (imperial / metric)
Daytime temperature 21°C 69.8°F
Nightly temperature 8.8°C 47.8°F
Average temperature 14.9°C 58.8°F
Daily sunshine 8.4 hrs
Avg rainfall 45 mm 1.8 ins
Rainy days 4 days
Sea temperature 17.5°C 63.5°F
Humidity 64%
Windspeed 11.5kph 7 mph

On average November is the 5th wettest month of the year in San Marcos with around 45mm 1.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.4 hours of sunshine per day.

November temperatures in San Marcos

San Marcos average temperature in November

November rainfall

San Marcos average rain in November

November hourly sunshine

San Marcos average rain in November

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 November 2025.

Other monthly averages

Best places to visit in November

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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