S
M
T
W
T
F
S
26
63°
50°
27
56°
52°
28
57°
49°
29
59°
49°
30
61°
52°
1
68°
53°
2
77°
55°
3
81°
56°
4
81°
52°
5
71°
51°
6
69°
52°
7
67°
51°
8
66°
52°
9
65°
51°
10
67°
51°
11
64°
52°
12
64°
50°
13
65°
51°
14
64°
46°
15
66°
48°
16
64°
48°
17
63°
47°
18
63°
49°
19
64°
48°
20
63°
49°
21
61°
49°
22
62°
47°
23
67°
49°
24
69°
50°
25
70°
51°
26
70°
50°
27
66°
50°
28
67°
49°
29
68°
50°
30
70°
51°
31
69°
51°
1
63°
50°
2
65°
51°
3
68°
51°
4
64°
52°
5
66°
51°
6
69°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Nanaimo
Nanaimo's May 2026 forecast shows daily high temperatures ranging from 61° to 81°, with overnight lows between 46° and 56°. The average high for May is 67° 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 Nanaimo. See also: June | July | August.
