S
M
T
W
T
F
S
26
64°
53°
27
65°
52°
28
74°
49°
29
77°
50°
30
77°
53°
1
82°
54°
2
81°
54°
3
63°
55°
4
65°
54°
5
65°
51°
6
77°
51°
7
82°
56°
8
79°
54°
9
82°
55°
10
85°
54°
11
91°
55°
12
72°
55°
13
75°
58°
14
75°
54°
15
72°
55°
16
74°
60°
17
71°
56°
18
81°
54°
19
88°
56°
20
90°
59°
21
86°
58°
22
82°
58°
23
81°
57°
24
82°
58°
25
77°
57°
26
74°
58°
27
75°
57°
28
79°
58°
29
80°
60°
30
78°
58°
31
79°
59°
1
81°
59°
2
80°
58°
3
78°
56°
4
76°
54°
5
79°
60°
6
83°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in San Fernando
San Fernando's May 2026 forecast shows daily high temperatures ranging from 74° to 90°, with overnight lows between 54° and 60°. The average high for May is 80° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in San Fernando. See also: June | July | August.
