S
M
T
W
T
F
S
26
59°
47°
27
58°
45°
28
60°
43°
29
59°
46°
30
60°
45°
1
61°
48°
2
57°
44°
3
58°
45°
4
57°
46°
5
53°
42°
6
54°
44°
7
55°
46°
8
55°
44°
9
54°
42°
10
54°
48°
11
56°
48°
12
56°
46°
13
57°
46°
14
55°
43°
15
59°
47°
16
61°
47°
17
62°
50°
18
62°
50°
19
61°
49°
20
58°
48°
21
57°
45°
22
58°
51°
23
59°
50°
24
58°
50°
25
58°
51°
26
59°
51°
27
58°
49°
28
61°
52°
29
62°
51°
30
60°
50°
31
62°
52°
1
65°
52°
2
62°
50°
3
60°
47°
4
61°
50°
5
61°
49°
6
60°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Swanage
Swanage's May 2026 forecast shows daily high temperatures ranging from 53° to 65°, with overnight lows between 42° and 52°. The average high for May is 59° with an average low of 48°. 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 Swanage. See also: June | July | August.