Measurements:
°C
°F
CURRENT WEATHER
18:51
Rio Grande
62°F
W 18 mph
Feels like: 62°F
Precip: 35%
World Resorts Brazil Rio Grande Weather

7 Day Weather Forecast

09.28
mon
DAY
64°F
SW 22 mph
precip
63%
NIGHT
64°F
SW 11 mph
precip
35%
09.29
tue
DAY
66°F
S 8 mph
precip
35%
NIGHT
64°F
NE 20 mph
precip
41%
09.30
wed
DAY
62°F
N 13 mph
precip
16%
NIGHT
56°F
N 11 mph
precip
23%
10.01
thu
DAY
60°F
NE 17 mph
precip
6%
NIGHT
54°F
NE 17 mph
precip
6%
10.02
fri
DAY
56°F
W 2 mph
precip
4%
NIGHT
56°F
SW 19 mph
precip
8%
10.03
sat
DAY
66°F
SW 19 mph
precip
24%
NIGHT
64°F
SW 12 mph
precip
65%
10.04
sun
DAY
62°F
NE 13 mph
precip
36%
NIGHT
60°F
E 4 mph
precip
6%

Rio Grande Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Rio Grande was 15.7°F. The maximum and minimum values were 14.1°F and 17.7°F respectively.

Rio Grande on the Weather Map

Best Time to Visit Rio Grande
The most sunny months:
July 14 days
May 12 days
August 11 days
The most warm months:
February 81.7 °F
January 81.2 °F
March 80.0 °F
Warmest sea temperature:
February 82.2 °F
January 81.3 °F
March 80.3 °F
The most cold months:
July 59.1 °F
June 60.6 °F
August 60.9 °F
The most rainy months:
September 5 days
July 4 days
May 3 days
The most windy months:
November 12 mph
December 12 mph
October 12 mph
more details