San Diego in Winter — Weather & What to Expect
Winter in San Diego (December, January, February) averages daytime highs of 17.8°C and lows of 8.4°C, with around 139.5mm of rain across the season (16 rainy days in total). It includes some of the best months of the year to visit (December, January, February).
In the northern hemisphere, winter in San Diego covers December, January, February.
Winter in San Diego month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| December | 17.9°C | 8.9°C | 44.4mm | 6 | 10/10 |
| January | 17.3°C | 8.3°C | 64.6mm | 6 | 10/10 |
| February | 18.1°C | 8.0°C | 30.5mm | 4 | 10/10 |
What to pack for San Diego in winter
- Warm layers
- Light jacket or fleece
- Comfortable walking shoes
- Light waterproof layer
Frequently Asked Questions
Is winter a good time to visit San Diego?
Winter in San Diego rates around 10/10 — excellent time to visit. Average highs are 17.8°C with 139.5mm of rain across the season.
How hot is San Diego in winter?
Daytime highs average 17.8°C (64.0°F) across December, January, February, with nights around 8.4°C.
What months are winter in San Diego?
San Diego is in the northern hemisphere, so winter covers December, January, February.
See also: best time to visit San Diego · San Diego annual climate · San Diego in spring · San Diego in summer · San Diego in autumn
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Once you know what winter in San Diego looks like, find out exactly what to pack for San Diego at 247PackingList. For currency, language and country facts, see the United States guide at 247CountryInfo.
Winter in San Diego — what to pack
Hot-weather travel clothing
Sun protection, lightweight layers and a reusable water bottle are essential here.
Check Price →Check clothing sizes in United States at 247Sizing before you shop.
More winter travel essentials
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.