S
M
T
W
T
F
S
26
44°
32°
27
46°
33°
28
43°
33°
29
46°
37°
30
54°
37°
1
66°
41°
2
70°
45°
3
62°
46°
4
57°
43°
5
58°
39°
6
54°
36°
7
56°
37°
8
57°
41°
9
58°
37°
10
58°
37°
11
64°
45°
12
66°
46°
13
63°
45°
14
59°
44°
15
66°
43°
16
65°
50°
17
62°
43°
18
67°
41°
19
77°
52°
20
69°
50°
21
63°
50°
22
57°
49°
23
72°
50°
24
68°
55°
25
64°
50°
26
63°
46°
27
56°
46°
28
60°
46°
29
60°
44°
30
64°
47°
31
67°
48°
1
68°
49°
2
68°
49°
3
70°
54°
4
69°
50°
5
66°
49°
6
68°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Tallinn
Tallinn's May 2026 forecast shows daily high temperatures ranging from 56° to 70°, with overnight lows between 44° and 54°. The average high for May is 65° 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 Tallinn. See also: June | July | August.
