S
M
T
W
T
F
S
26
61°
38°
27
64°
38°
28
66°
44°
29
65°
43°
30
67°
41°
1
74°
46°
2
77°
51°
3
71°
55°
4
68°
54°
5
57°
42°
6
51°
42°
7
57°
44°
8
63°
48°
9
68°
51°
10
67°
47°
11
63°
48°
12
63°
49°
13
61°
49°
14
61°
49°
15
62°
48°
16
68°
54°
17
69°
53°
18
68°
50°
19
61°
48°
20
60°
48°
21
60°
46°
22
61°
47°
23
61°
48°
24
63°
52°
25
67°
52°
26
70°
55°
27
71°
55°
28
69°
53°
29
66°
48°
30
67°
50°
31
71°
56°
1
72°
55°
2
71°
53°
3
70°
50°
4
68°
53°
5
72°
57°
6
73°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Gelsenkirchen
Gelsenkirchen's May 2026 forecast shows daily high temperatures ranging from 51° to 73°, with overnight lows between 42° and 57°. The average high for May is 65° 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 Gelsenkirchen. See also: June | July | August.