17.05
sun
sun
Day
61°F
N 15 mph
Precip.
0%
0%
Night
55°F
N 16 mph
Precip.
0%
0%
18.05
mon
mon
Day
59°F
NE 12 mph
Precip.
0%
0%
Night
50°F
E 7 mph
Precip.
0%
0%
19.05
tue
tue
Day
57°F
E 11 mph
Precip.
0%
0%
Night
50°F
E 13 mph
Precip.
0%
0%
20.05
wed
wed
Day
57°F
NE 15 mph
Precip.
0%
0%
Night
52°F
NE 14 mph
Precip.
0%
0%
21.05
thu
thu
Day
55°F
NE 8 mph
Precip.
0%
0%
Night
52°F
N 7 mph
Precip.
0%
0%
22.05
fri
fri
Day
59°F
N 7 mph
Precip.
0%
0%
Night
57°F
W 7 mph
Precip.
100%
100%
23.05
sat
sat
Day
64°F
SW 10 mph
Precip.
0%
0%
Night
61°F
SW 13 mph
Precip.
0%
0%
24.05
sun
sun
Day
66°F
SW 18 mph
Precip.
0%
0%
Night
64°F
SW 17 mph
Precip.
0%
0%
25.05
mon
mon
Day
66°F
SW 15 mph
Precip.
0%
0%
Night
64°F
SW 12 mph
Precip.
83%
83%
26.05
tue
tue
Day
64°F
S 12 mph
Precip.
100%
100%
Night
64°F
S 5 mph
Precip.
100%
100%
27.05
wed
wed
Day
63°F
NE 9 mph
Precip.
100%
100%
Night
59°F
NE 10 mph
Precip.
62%
62%
28.05
thu
thu
Day
61°F
N 15 mph
Precip.
0%
0%
Night
55°F
N 7 mph
Precip.
0%
0%
29.05
fri
fri
Day
61°F
NW 3 mph
Precip.
0%
0%
Night
59°F
SW 12 mph
Precip.
0%
0%
sea water
temperature
temperature
| Rio Grande |
monthly
weather
weather
| Rio Grande |
current
weather
weather
| Rio Grande |
7 days
forecast
forecast
| Rio Grande |
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 63.6°F. The highest and lowest sea temperatures during the month were 70.2°F and 57.2°F.
Air temperature in Rio Grande, °F
Precipitation total in Rio Grande, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Rio Grande
Rio Grande on a weather map
Places in Brazil:
Name
°F
24 Hours Forecast
Rio Grande
Local time: 02:14
May 17, sunday
0300
59°F
NW
9 mph
9 mph
0600
59°F
N
12 mph
12 mph
0900
59°F
N
12 mph
12 mph
1200
61°F
N
15 mph
15 mph
1500
61°F
N
18 mph
18 mph
1800
57°F
N
21 mph
21 mph
2100
55°F
N
17 mph
17 mph
May 18, monday
0000
55°F
N
16 mph
16 mph
