S
M
T
W
T
F
S
26
53°
38°
27
54°
40°
28
53°
42°
29
57°
44°
30
60°
46°
1
61°
46°
2
62°
45°
3
62°
46°
4
61°
47°
5
63°
47°
6
63°
48°
7
64°
49°
8
64°
49°
9
63°
48°
10
64°
49°
11
64°
49°
12
65°
50°
13
65°
49°
14
66°
50°
15
69°
48°
16
68°
49°
17
67°
46°
18
64°
40°
19
59°
41°
20
62°
47°
21
64°
48°
22
59°
46°
23
60°
41°
24
60°
45°
25
65°
47°
26
66°
49°
27
62°
51°
28
61°
44°
29
65°
53°
30
68°
54°
31
67°
53°
1
67°
52°
2
66°
52°
3
67°
47°
4
69°
48°
5
69°
55°
6
70°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Riga
Riga's May 2026 forecast shows daily high temperatures ranging from 53° to 70°, with overnight lows between 38° and 55°. The average high for May is 63° with an average low of 47°. 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 Riga. See also: June | July | August.
