Measurements:
°C
°F
Rio Grande
70°F
N 22 mph
Feels like: 70°F
Precip: 100%
World Resorts Brazil Rio Grande Weather

Rio Grande Sea Water Temperature

Current Sea Water Temperature:
+82.6°F
Maximum Sea Water Temperature in December: 82.6°F
Minimum Sea Water Temperature in December: 72.2°F
Average water temperature in December: 77.1°F

Sea Water Temperature for the Last 10 Days:

December 15 82.6°F December 10 77.0°F
December 14 82.2°F December 09 77.2°F
December 13 79.4°F December 08 77.8°F
December 12 76.8°F December 07 78.0°F
December 11 77.0°F December 06 76.4°F

When is the Warmest Sea for Rio Grande?

According to our data for the last three years for Rio Grande the highest average sea water temperature was in February, January and March.

Average Water Temperature by Month, °F

Sea Water Temperature in February

Select Year: 2025 2024 2023

The average sea surface temperature in February 2025 for Rio Grande was 83.6°F. The maximum and minimum values were 80.6°F and 86.4°F respectively.

Sea Water Temperature in January

Select Year: 2025 2024 2023

The average sea surface temperature in January 2025 for Rio Grande was 80.5°F. The maximum and minimum values were 77.0°F and 84.2°F respectively.

Sea Water Temperature in March

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for Rio Grande was 81.7°F. The maximum and minimum values were 76.0°F and 89.4°F respectively.

Best Time to Visit Rio Grande
The most sunny months:
July 14 days
August 12 days
May 12 days
The most warm months:
February 81.7 °F
January 81.4 °F
March 80.3 °F
Warmest sea temperature:
February 82.1 °F
January 81.3 °F
March 80.6 °F
The most cold months:
July 58.9 °F
June 60.9 °F
August 61.1 °F
The most rainy months:
September 6 days
May 4 days
July 3 days
The most windy months:
December 13 mph
November 12 mph
October 12 mph

Rio Grande on the Weather Map

Brazil Resorts:
NAME
Armacao dos Buzios +84
Buzios +84
Florianopolis +84
Fortaleza +90
Jericoacoara +92
Joao Pessoa +86
Natal +86
Recife +84
Rio de Janeiro +88
Rio Grande +70
Salvador +84
Santos +86
Sao Paulo +86
Unamar +86
Xangri-la +80
24 Hours Weather Forecast
Rio Grande
Local time: 15:17
15 dec, monday
1800 68°F
N
12 mph
2100 68°F
NE
4 mph
16 dec, tuesday
0000 70°F
NE
14 mph
0300 66°F
NE
14 mph
0600 68°F
NE
12 mph
0900 74°F
NE
10 mph
1200 76°F
N
17 mph
1500 74°F
N
18 mph