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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Serra Mesa, CA
Content continues below
May
Average Temperature
High
21°
Feels 21
Low
14°
Feels 14
Average Precipitation
1 Days
Rain amount
5.6mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
21°
24
21°
25
21°
26
19°
27
18°
28
19°
29
20°
30
21°
31
22°
Forecast
Saturday, May 23, 2026
Day
21°
Feels 21
Wind
20 km/h W
Gust
30 km/h
Humidity
54%
P.O.P
20%
Night
16°
Feels 16
Wind
12 km/h W
Gust
18 km/h
Humidity
83%
P.O.P
20%
Historical Averages
May 23
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.