S
M
T
W
T
F
S
26
97°
77°
27
91°
79°
28
93°
77°
29
96°
78°
30
90°
77°
31
91°
75°
1
91°
77°
2
90°
75°
3
86°
77°
4
90°
77°
5
82°
75°
6
88°
75°
7
88°
75°
8
87°
74°
9
88°
77°
10
89°
76°
11
95°
76°
12
93°
74°
13
96°
75°
14
92°
76°
15
93°
75°
16
95°
76°
17
93°
75°
18
93°
76°
19
90°
75°
20
89°
75°
21
90°
74°
22
89°
75°
23
90°
80°
24
87°
76°
25
86°
75°
26
86°
76°
27
87°
77°
28
88°
77°
29
90°
76°
30
90°
77°
31
89°
77°
1
88°
76°
2
88°
77°
3
87°
77°
4
88°
76°
5
87°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fernandina Beach
Fernandina Beach's August 2026 forecast shows daily high temperatures ranging from 86° to 96°, with overnight lows between 74° and 80°. The average high for August is 90° with an average low of 76°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Fernandina Beach. See also: September | October | November.
