San Diego · March
Run in the morning.
Cool month: average high 65°F, low 51°F. Humidity averages 75% — the limiting factor on most runs. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
65° / 51°F
Humidity
75%
Rain days
9/mo
Wind
12 mph
What March feels like in San Diego
Sunrise
06:56
Mid-month average
Sunset
18:57
Mid-month average
Time-of-day breakdown
Morning
Coolest, driest air of the day. The window before sunrise is the most reliable comfortable hour.
Midday
Mild but UV and traffic peak. Workable if you don't mind shifting your pace.
Evening
Warm and runnable. Crowded routes but the air's typically calm.
What to wear running in San Diego in March
The kit for March in San Diego: shorts and a short-sleeve are the standard kit.
March vs the surrounding months
vs February
0° avg high
+2 rain days
San Diego in February →
March
65°F avg high
9 rain days
Best: morning
vs April
-3° avg high
+4 rain days
San Diego in April →
Frequently Asked Questions
What is the best time of day to run in San Diego in March?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in San Diego in March?+
Average high 65°F, average low 51°F.
How does March compare to surrounding months in San Diego?+
Compared to February (avg high 65°F), March is warmer. Compared to April (avg high 68°F), March is cooler.
Does it rain often in San Diego in March?+
Expect about 9 measurable rain days in March, on average.