S
M
T
W
T
F
S
26
79°
63°
27
70°
64°
28
79°
66°
29
84°
66°
30
90°
70°
1
84°
68°
2
68°
61°
3
72°
57°
4
75°
55°
5
77°
59°
6
86°
66°
7
86°
70°
8
77°
68°
9
79°
68°
10
77°
70°
11
86°
70°
12
75°
70°
13
79°
68°
14
88°
66°
15
77°
66°
16
84°
72°
17
83°
71°
18
84°
71°
19
82°
70°
20
84°
69°
21
85°
72°
22
84°
71°
23
83°
70°
24
82°
72°
25
83°
70°
26
82°
71°
27
81°
70°
28
84°
76°
29
89°
74°
30
89°
73°
31
88°
74°
1
87°
74°
2
88°
73°
3
89°
74°
4
88°
74°
5
85°
74°
6
86°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fernandina Beach
Fernandina Beach's May 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 66° and 76°. The average high for May is 85° with an average low of 72°. 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 Fernandina Beach. See also: June | July | August.