World Resorts Brazil Rio Grande Weather

Rio Grande 7 Days Forecast

15.09
tue
Day
57°F
NE 10 mph
Precip.
2%
Night
52°F
N 19 mph
Precip.
17%
16.09
wed
Day
55°F
N 10 mph
Precip.
4%
Night
54°F
SW 11 mph
Precip.
5%
17.09
thu
Day
61°F
SW 11 mph
Precip.
18%
Night
57°F
SW 9 mph
Precip.
14%
18.09
fri
Day
63°F
W 11 mph
Precip.
24%
Night
61°F
SW 17 mph
Precip.
30%
19.09
sat
Day
64°F
SW 21 mph
Precip.
23%
Night
63°F
SW 23 mph
Precip.
32%
20.09
sun
Day
61°F
W 21 mph
Precip.
69%
Night
61°F
SW 13 mph
Precip.
65%
21.09
mon
Day
64°F
E 9 mph
Precip.
25%
Night
59°F
N 12 mph
Precip.
38%

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 59.1°F. The highest and lowest sea temperatures during the month were 62.2°F and 57.4°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

Sunniest months:
July 14 days
May 12 days
August 11 days
Warmest months:
February 78.5 °F
January 78.1 °F
March 77.0 °F
Warmest sea temp:
February 79.0 °F
January 78.2 °F
March 77.3 °F
Coldest months:
July 58.2 °F
June 59.5 °F
August 59.8 °F
Rainiest months:
September 6 days
July 4 days
May 3 days
Windiest months:
November 12.9 mph
December 12.8 mph
October 12.7 mph

Rio Grande on a weather map

Current weather
06:03
Rio Grande
+48°F
E 10 mph
Feels like: +45°F
Precip.: 12%
Places in Brazil:
Name
°F
Balneario Camboriu
+50°F
Buzios
+64°F
Joao Pessoa
+77°F
Ilha de Itamaraca
+79°F
Natal
+75°F
Recife
+73°F
Rio de Janeiro
+66°F
Salvador
+75°F
Sao Jose de Ribamar
+79°F
Sao Paulo
+54°F
Sao Sebastiao
+61°F
Santos
+64°F
Florianopolis
+54°F
Fortaleza
+79°F
Xangri-la
+54°F
all places
24 Hours Forecast
Rio Grande
Local time: 06:03
September 15, tuesday
0900
52°F
E
11 mph
1200
57°F
NE
10 mph
1500
59°F
NE
9 mph
1800
59°F
NE
5 mph
2100
57°F
E
9 mph
September 16, wednesday
0000
52°F
N
19 mph
0300
52°F
N
16 mph
0600
50°F
NE
13 mph
Units of measurement: °C / °F