San Diego, California Weather in October
United States · October climate averages and travel tips
Avg high27°C (81°F)
Avg low16°C (61°F)
Rainfall9 mm (0.4 in)
RatingExcellent 10/10
Expect hot days in San Diego in October: the average high is 27°C (81°F) and the average low is 16°C (61°F). October is autumn (fall) in United States. The month is very dry, with about 9 mm (0.4 in) of rain spread over 2 days. You get roughly 11.2 hours of daylight and a mix of sun and cloud.
Is October a good time to visit San Diego?
Yes — October is one of the best months to visit San Diego. The weather rates excellent (10/10) on our comfort score.
October weather at a glance
| Average high | 27°C (81°F) |
|---|---|
| Average low | 16°C (61°F) |
| Daily mean | 21°C (69°F) |
| Rainfall | 9 mm (0.4 in) |
| Rainy days (1 mm+) | 2 |
| Humidity | 58% |
| Cloud cover | 50% |
| Daylight | 11.2 hours |
| Est. sunshine | 6.2 hours/day |
| Wind | 7.2 km/h |
| vs September | 3°C cooler than September, with similar rainfall. |
What to pack for San Diego in October
- light, breathable clothing
- sunscreen and a hat
- swimwear
San Diego weather in other months
Jan19°C / 10°C51 mmExcellentFeb19°C / 10°C52 mmExcellentMar20°C / 11°C39 mmExcellentApr22°C / 12°C15 mmExcellentMay24°C / 13°C8 mmExcellentJun27°C / 15°C14 mmExcellentJul31°C / 18°C4 mmGoodAug32°C / 19°C6 mmGoodSep30°C / 19°C6 mmExcellentOct27°C / 16°C9 mmExcellentNov23°C / 13°C25 mmExcellentDec19°C / 10°C51 mmExcellent
← SeptemberBest time to visit San DiegoNovember →
Nearby in October
- Tijuana27°C · 9 mm
- Mexicali34°C · 6 mm
- Los Angeles, California28°C · 11 mm
- Las Vegas, Nevada29°C · 10 mm
- Phoenix, Arizona32°C · 14 mm
- San Francisco, California22°C · 34 mm
Where else is good in October? See where to go in October.