S
M
T
W
T
F
S
26
54°
35°
27
60°
35°
28
62°
37°
29
61°
36°
30
52°
38°
1
67°
29°
2
74°
34°
3
75°
42°
4
72°
43°
5
44°
32°
6
44°
31°
7
71°
30°
8
75°
44°
9
78°
47°
10
72°
43°
11
88°
46°
12
77°
54°
13
92°
46°
14
88°
58°
15
85°
50°
16
81°
56°
17
70°
44°
18
47°
39°
19
53°
37°
20
58°
44°
21
68°
40°
22
69°
36°
23
78°
40°
24
79°
49°
25
82°
49°
26
79°
49°
27
71°
48°
28
77°
50°
29
75°
52°
30
74°
48°
31
74°
47°
1
75°
50°
2
72°
49°
3
76°
50°
4
77°
51°
5
79°
49°
6
75°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wellington
Wellington's May 2026 forecast shows daily high temperatures ranging from 71° to 82°, with overnight lows between 47° and 52°. The average high for May is 76° with an average low of 50°. 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 Wellington. See also: June | July | August.