S
M
T
W
T
F
S
26
71°
55°
27
73°
52°
28
68°
45°
29
82°
55°
30
77°
56°
1
62°
51°
2
59°
38°
3
69°
34°
4
81°
39°
5
83°
46°
6
78°
60°
7
78°
54°
8
72°
45°
9
74°
47°
10
84°
53°
11
69°
50°
12
73°
46°
13
80°
39°
14
71°
46°
15
76°
38°
16
86°
45°
17
91°
57°
18
92°
61°
19
93°
61°
20
93°
60°
21
93°
64°
22
70°
61°
23
63°
58°
24
82°
58°
25
82°
70°
26
84°
70°
27
87°
66°
28
88°
61°
29
82°
64°
30
78°
57°
31
76°
60°
1
77°
59°
2
78°
57°
3
80°
59°
4
81°
62°
5
82°
63°
6
77°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Saint Martin
Saint Martin's May 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 57° and 66°. The average high for May is 81° with an average low of 61°. 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 Saint Martin. See also: June | July | August.