Rancho Santa Fe Weather in December

What's the weather like in Rancho Santa Fe (California) in December 2025?

The climate in Rancho Santa Fe during December can be summarized as mild and reasonably dry.

December is in the winter in Rancho Santa Fe and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 19°C (66°F), whilst at night 7°C (45°F) is normal.

Rancho Santa Fe weather averages (imperial / metric)
Daytime temperature 18.6°C 65.5°F
Nightly temperature 7°C 44.6°F
Average temperature 12.8°C 55°F
Daily sunshine 8.1 hrs
Avg rainfall 45 mm 1.8 ins
Rainy days 5 days
Sea temperature 15.7°C 60.2°F
Humidity 64%
Windspeed 10.8kph 7 mph

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

On the flip side this corresponds to an average of 8.1 hours of sunshine per day.

December temperatures in Rancho Santa Fe

Rancho Santa Fe average temperature in December

December rainfall

Rancho Santa Fe average rain in December

December hourly sunshine

Rancho Santa Fe average rain in December

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 Rancho Santa Fe in December 2025.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Rancho Santa Fe weather stats

Rancho Santa Fe weather statistics
Hottest month: August 27.2°C 81°F
Driest month: July 1mm 0ins
Sunniest month: August 10.9hrs
Coldest month: January 18.2°C 64.8°F
Wettest month: January 65mm 2.6ins
Map showing location of Rancho Santa Fe (33.02032, -117.20281) Rancho Santa Fe map pin © Google

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