S
M
T
W
T
F
S
26
63°
40°
27
67°
41°
28
68°
44°
29
65°
42°
30
65°
41°
1
73°
44°
2
76°
50°
3
73°
54°
4
67°
54°
5
68°
53°
6
65°
49°
7
60°
44°
8
68°
49°
9
73°
54°
10
73°
54°
11
73°
55°
12
71°
53°
13
61°
47°
14
60°
48°
15
64°
48°
16
65°
50°
17
69°
52°
18
69°
48°
19
62°
46°
20
60°
47°
21
60°
46°
22
61°
45°
23
61°
46°
24
63°
47°
25
67°
49°
26
70°
54°
27
71°
55°
28
71°
54°
29
66°
51°
30
68°
50°
31
72°
55°
1
73°
56°
2
72°
54°
3
72°
52°
4
71°
54°
5
72°
56°
6
72°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Giessen
Giessen's May 2026 forecast shows daily high temperatures ranging from 60° to 73°, with overnight lows between 44° and 56°. The average high for May is 67° with an average low of 51°. 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 Giessen. See also: June | July | August.
