S
M
T
W
T
F
S
26
84°
79°
27
86°
79°
28
85°
79°
29
86°
79°
30
84°
77°
1
86°
79°
2
88°
79°
3
86°
79°
4
88°
79°
5
86°
81°
6
88°
79°
7
88°
79°
8
88°
78°
9
86°
77°
10
86°
81°
11
86°
75°
12
88°
79°
13
88°
80°
14
88°
79°
15
86°
77°
16
88°
79°
17
87°
79°
18
87°
78°
19
86°
79°
20
86°
77°
21
86°
75°
22
87°
74°
23
84°
77°
24
86°
79°
25
86°
77°
26
85°
78°
27
85°
78°
28
86°
79°
29
87°
80°
30
88°
82°
31
89°
79°
1
88°
77°
2
89°
78°
3
88°
77°
4
88°
77°
5
89°
78°
6
86°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Gustavia
Gustavia's May 2026 forecast shows daily high temperatures ranging from 85° to 89°, with overnight lows between 76° and 82°. The average high for May is 87° with an average low of 78°. 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 Gustavia. See also: June | July | August.
