Typical May weather
San Diego
California · May
70° days
60° nights
maybe one rainy day · 14 hours of daylight · ocean 64°
What May feels like
Locals call it May Gray and treat it as a fact of life rather than bad luck: the marine layer sits on the coast in the morning and pulls back by early afternoon. Inland, in Escondido or El Cajon, it stays sunny the whole time.
Real rain shows up maybe one day all month; the rest stay dry. Humidity stays comfortable; the air never feels heavy.
Can you swim?
The ocean runs about 64° — cold — a quick dip takes resolve.
The numbers
| Typical high | 70° |
|---|---|
| Typical low | 60° |
| Days with real rain | 1 |
| Total rain | 0.3 in |
| Humidity | comfortable |
| Water temperature | 64° |
| Sunrise / sunset (mid-month) | 5:49 am / 7:40 pm |