S
M
T
W
T
F
S
26
55°
47°
27
66°
44°
28
60°
48°
29
61°
53°
30
68°
49°
1
62°
45°
2
60°
51°
3
63°
43°
4
73°
57°
5
79°
64°
6
74°
55°
7
59°
46°
8
65°
49°
9
65°
49°
10
71°
56°
11
73°
53°
12
71°
55°
13
72°
55°
14
74°
57°
15
74°
55°
16
72°
56°
17
78°
61°
18
80°
62°
19
80°
62°
20
79°
61°
21
80°
62°
22
77°
54°
23
71°
54°
24
71°
55°
25
72°
57°
26
73°
57°
27
73°
56°
28
74°
58°
29
75°
56°
30
74°
62°
31
77°
65°
1
80°
65°
2
76°
62°
3
76°
63°
4
81°
66°
5
81°
66°
6
84°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Riva
Riva's May 2026 forecast shows daily high temperatures ranging from 59° to 84°, with overnight lows between 43° and 67°. The average high for May is 74° with an average low of 58°. 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 Riva. See also: June | July | August.
