San Diego, California Weather in March
United States · March climate averages and travel tips
Avg high20°C (69°F)
Avg low11°C (51°F)
Rainfall39 mm (1.5 in)
RatingExcellent 10/10
In March, San Diego has average highs of 20°C (69°F) and lows of 11°C (51°F). March is spring in United States. The month is fairly dry, with about 39 mm (1.5 in) of rain spread over 6 days. You get roughly 11.8 hours of daylight and a mix of sun and cloud.
Is March a good time to visit San Diego?
Yes — March is one of the best months to visit San Diego. The weather rates excellent (10/10) on our comfort score.
March weather at a glance
| Average high | 20°C (69°F) |
|---|---|
| Average low | 11°C (51°F) |
| Daily mean | 15°C (58°F) |
| Rainfall | 39 mm (1.5 in) |
| Rainy days (1 mm+) | 6 |
| Humidity | 69% |
| Cloud cover | 58% |
| Daylight | 11.8 hours |
| Est. sunshine | 5.5 hours/day |
| Wind | 8.6 km/h |
| vs February | 1°C warmer than February, with 13 mm less rain. |
What to pack for San Diego in March
- T-shirts plus a light layer for the evening
- a sweater for cool nights
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
← FebruaryBest time to visit San DiegoApril →
Nearby in March
- Tijuana20°C · 39 mm
- Mexicali27°C · 13 mm
- Los Angeles, California20°C · 53 mm
- Las Vegas, Nevada22°C · 13 mm
- Phoenix, Arizona25°C · 23 mm
- San Francisco, California16°C · 90 mm
Where else is good in March? See where to go in March.