S
M
T
W
T
F
S
26
87°
66°
27
84°
67°
28
86°
66°
29
88°
63°
30
90°
70°
1
91°
70°
2
87°
68°
3
77°
64°
4
81°
66°
5
84°
66°
6
91°
65°
7
94°
68°
8
91°
70°
9
95°
70°
10
93°
73°
11
92°
73°
12
83°
71°
13
88°
71°
14
89°
72°
15
90°
66°
16
90°
73°
17
90°
75°
18
89°
71°
19
89°
75°
20
91°
72°
21
91°
73°
22
N/A
23
94°
74°
24
92°
74°
25
92°
74°
26
95°
75°
27
92°
71°
28
89°
70°
29
87°
71°
30
84°
72°
31
86°
70°
1
88°
70°
2
86°
69°
3
88°
71°
4
87°
70°
5
88°
72°
6
87°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Reunion
Reunion's May 2026 forecast shows daily high temperatures ranging from 84° to 95°, with overnight lows between 68° and 75°. The average high for May is 89° 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 Reunion. See also: June | July | August.