The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
⋮
Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Castroville, CA
Content continues below
May
Average Temperature
High
17°
Feels 16
Low
10°
Feels 9
Average Precipitation
2 Days
Rain amount
6.1mm
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
16°
18
20°
19
20°
20
18°
21
17°
22
15°
23
15°
24
16°
25
16°
26
16°
27
16°
28
15°
29
15°
30
16°
31
16°
Forecast
Sunday, May 17, 2026
Day
16°
Feels 15
Wind
20 km/h W
Gust
29 km/h
Humidity
55%
P.O.P
20%
Night
11°
Feels 11
Wind
19 km/h SW
Gust
28 km/h
Humidity
75%
P.O.P
20%
Historical Averages
May 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.