San Diego Weather in January

Average temperatures, rainfall and packing tips for San Diego, United States in January

🌡️ Avg high
17°C
🌙 Avg low
8°C
🌧️ Rainfall
~94 mm
📊 Warmth rank
#10 of 12

January in San Diego at a glance

January in San Diego is typically mild, with average daytime highs around 17°C and nights near 8°C. It is one of the cooler months of San Diego's year.

January is one of the wetter months in San Diego, with around 94 mm of rain - plan around showers.

What to pack for San Diego in January

San Diego - year at a glance

HighLow · January highlighted
5°10°15°20°25°30°17°8°16°9°17°10°19°11°20°13°22°16°25°18°25°18°25°18°24°14°20°10°18°9°JanFebMarAprMayJunJulAugSepOctNovDec

Is January a good time to visit San Diego?

🧳 January is a workable time to visit San Diego, with mild days - just pack accordingly.

If your dates are flexible, the most comfortable months in San Diego are usually April, May, June, July, August, September, October, November and December.

Other months in San Diego

January in other cities

← San Diego weather tomorrow (live)

FAQ

How hot is San Diego in January?

In January, San Diego averages a daytime high of about 17°C and a night-time low of around 8°C, based on recent historical data.

Does it rain in San Diego in January?

January is one of the wetter months in San Diego, with around 94 mm of rain - plan around showers.

Is January a good time to visit San Diego?

January is a workable time to visit San Diego, with mild days - just pack accordingly. If your dates are flexible, the most comfortable months in San Diego are usually April, May, June, July, August, September, October, November and December.