What is the weather like in Channel Islands National Park vs San Diego in December?

In December, Channel Islands National Park averages 15°C high / 12°C low with about 66 mm of rain; San Diego averages 19°C high / 10°C low with about 46 mm.

Channel Islands National Park vs San Diego in December

Channel Islands National Park is the better pick in December — 79 vs 71 on SeasonMap's comfort score. Channel Islands National Park is cool, a little rain, clean air, while San Diego is nice, a little rain, muggy air.

Channel Islands National Park vs San Diego — December climate, side by side

	🇺🇸 Channel Islands National Park	🇺🇸 San Diego
Comfort score	79/100 (B)	71/100 (B)
Feels-like high	13°C	18°C
Avg high / low	15° / 12°	19° / 10°
Rainfall	66 mm	46 mm
Rainy days	6	4
Humidity	78%	76%
Air quality (AQI)	34	66

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Channel Islands National Park 🇺🇸 United Statescool, a little rain, clean air · best June79
San Diego 🇺🇸 United Statesnice, a little rain, muggy air · best August71

Channel Islands National Park vs San Diego in December — FAQ

Is December better in Channel Islands National Park or San Diego?: Channel Islands National Park is the better pick in December — 79 vs 71 on SeasonMap's comfort score. Channel Islands National Park is cool, a little rain, clean air, while San Diego is nice, a little rain, muggy air.
What is the weather like in Channel Islands National Park vs San Diego in December?: In December, Channel Islands National Park averages 15°C high / 12°C low with about 66 mm of rain; San Diego averages 19°C high / 10°C low with about 46 mm.