San Diego, California Weather in August
United States · August climate averages and travel tips
Avg high32°C (89°F)
Avg low19°C (66°F)
Rainfall6 mm (0.2 in)
RatingGood 7.8/10
San Diego in August sees daytime temperatures around 32°C (89°F), dropping to about 19°C (66°F) at night. August is summer in United States. The month is very dry, with about 6 mm (0.2 in) of rain spread over 1 day, one of the driest months of the year. You get roughly 13.2 hours of daylight and frequently cloudy skies.
Is August a good time to visit San Diego?
August is a good time to visit San Diego (7.8/10), though October to June are even better.
August weather at a glance
| Average high | 32°C (89°F) |
|---|---|
| Average low | 19°C (66°F) |
| Daily mean | 25°C (76°F) |
| Rainfall | 6 mm (0.2 in) |
| Rainy days (1 mm+) | 1 |
| Humidity | 56% |
| Cloud cover | 65% |
| Daylight | 13.2 hours |
| Est. sunshine | 5.1 hours/day |
| Wind | 7.2 km/h |
| vs July | 1°C warmer than July, with similar rainfall. |
What to pack for San Diego in August
- 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
← JulyBest time to visit San DiegoSeptember →
Better weather in August nearby
- San Francisco, California23°C · 1 mm · Excellent
- Seattle, Washington24°C · 25 mm · Excellent
- Vancouver22°C · 32 mm · Excellent
- Victoria21°C · 26 mm · Excellent
- Calgary24°C · 62 mm · Excellent
- Honolulu, Hawaii28°C · 42 mm · Excellent
Nearby in August
- Tijuana32°C · 6 mm
- Mexicali44°C · 9 mm
- Los Angeles, California32°C · 4 mm
- Las Vegas, Nevada40°C · 17 mm
- Phoenix, Arizona40°C · 38 mm
- San Francisco, California23°C · 1 mm
Where else is good in August? See where to go in August.