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
75°
61°
16
82°
72°
17
84°
75°
18
82°
73°
19
82°
72°
20
82°
68°
21
82°
68°
22
84°
75°
23
84°
75°
24
86°
73°
25
86°
77°
26
85°
74°
27
88°
73°
28
86°
72°
29
84°
73°
30
82°
70°
31
80°
69°
1
81°
68°
2
80°
69°
3
81°
70°
4
81°
70°
5
81°
69°
6
83°
71°
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 80° to 88°, with overnight lows between 68° and 74°. The average high for May is 83° with an average low of 71°. 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.