Monthly Historical AveragesSan Ysidro, CA
Average Temperature
High
19°
Feels 19
Low
12°
Feels 12
Average Precipitation
2 Days
7.1mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, April 1, 2026
Day
21°Feels 21
Wind
25 km/h W
Gust
38 km/h
Humidity
59%
P.O.P
60%
Rain
~1 mm
Night
13°Feels 13
Wind
14 km/h N
Gust
20 km/h
Humidity
93%
P.O.P
30%
Historical AveragesApr 1
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity