S
M
T
W
T
F
S
26
63°
45°
27
79°
43°
28
72°
55°
29
61°
46°
30
55°
41°
1
51°
33°
2
53°
34°
3
59°
46°
4
74°
57°
5
67°
49°
6
56°
40°
7
53°
36°
8
56°
43°
9
62°
46°
10
64°
47°
11
66°
50°
12
67°
51°
13
66°
50°
14
63°
49°
15
69°
53°
16
65°
49°
17
68°
54°
18
74°
56°
19
75°
56°
20
73°
57°
21
76°
57°
22
76°
58°
23
75°
56°
24
72°
51°
25
68°
53°
26
75°
59°
27
77°
57°
28
72°
58°
29
72°
56°
30
70°
54°
31
75°
56°
1
70°
52°
2
73°
59°
3
74°
53°
4
70°
52°
5
71°
52°
6
71°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in London
London's May 2026 forecast shows daily high temperatures ranging from 51° to 77°, with overnight lows between 33° and 59°. The average high for May is 68° 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 London. See also: June | July | August.
