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San Diego weather in January 2023
- 19°C max day temperature
19 - 8 hours of sunshine per day
- 6 days with some rainfall
6 - 7°C min night temperature
7 - 10 hours of daylight per day
10 - No heat & humidity
0 - 53 mm of monthly rainfall
53 - 3 (Moderate) UV index
3 - 15°C sea temperature
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The January weather guide for California (San Diego) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Metric (°C / mm) | Imperial (°F / inches)
More about California
How hot is it in San Diego in January?
Daytime temperatures usually reach 19°C in San Diego in January, falling to 7°C at night.
How sunny is it in San Diego in January?
There are normally 8 hours of bright sunshine each day in San Diego in January - that's 76% of daylight hours.
How warm is the sea around San Diego in January?
The average sea temperature around San Diego in January is 15°C.
Does it rain in San Diego in January?
There are usually 6 days with some rain in San Diego in January and the average monthly rainfall is 53mm.
San Diego January sunrise & sunset times
Browse the sunrise and sunset times for San Diego in January 2023. Select a month to view San Diego sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Sunday, 1st January 2023 | 06:51 | 16:54 |
| Monday, 16th January 2023 | 06:51 | 17:06 |
| Tuesday, 31st January 2023 | 06:44 | 17:20 |
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