San Diego, California Weather in May
United States · May climate averages and travel tips
Avg high24°C (75°F)
Avg low13°C (55°F)
Rainfall8 mm (0.3 in)
RatingExcellent 9.7/10
In May, San Diego has average highs of 24°C (75°F) and lows of 13°C (55°F). May is spring in United States. The month is very dry, with about 8 mm (0.3 in) of rain spread over 2 days. You get roughly 13.7 hours of daylight and frequently cloudy skies.
Is May a good time to visit San Diego?
Yes — May is one of the best months to visit San Diego. The weather rates excellent (9.7/10) on our comfort score.
May weather at a glance
| Average high | 24°C (75°F) |
|---|---|
| Average low | 13°C (55°F) |
| Daily mean | 18°C (64°F) |
| Rainfall | 8 mm (0.3 in) |
| Rainy days (1 mm+) | 2 |
| Humidity | 69% |
| Cloud cover | 72% |
| Daylight | 13.7 hours |
| Est. sunshine | 4.2 hours/day |
| Wind | 9 km/h |
| vs April | 2°C warmer than April, with similar rainfall. |
What to pack for San Diego in May
- T-shirts plus a light layer for the evening
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
← AprilBest time to visit San DiegoJune →
Nearby in May
- Tijuana24°C · 8 mm
- Mexicali36°C · 3 mm
- Los Angeles, California25°C · 8 mm
- Las Vegas, Nevada32°C · 4 mm
- Phoenix, Arizona35°C · 6 mm
- San Francisco, California19°C · 18 mm
Where else is good in May? See where to go in May.