Measurements:
°C
°F
Rio de Janeiro
94°F
NW 2 mph
Feels like: 100°F
Precip: 0%
World Resorts Brazil Rio de Janeiro Weather

Rio de Janeiro Sea Water Temperature

Current Sea Water Temperature:
+78.0°F
Maximum Sea Water Temperature in December: 85.6°F
Minimum Sea Water Temperature in December: 73.2°F
Average water temperature in December: 78.9°F

Sea Water Temperature for the Last 10 Days:

December 15 78.0°F December 10 82.0°F
December 14 78.0°F December 09 80.4°F
December 13 77.8°F December 08 80.4°F
December 12 79.2°F December 07 80.0°F
December 11 82.2°F December 06 79.2°F

When is the Warmest Sea for Rio de Janeiro?

According to our data for the last three years for Rio de Janeiro 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 de Janeiro was 83.6°F. The maximum and minimum values were 81.8°F and 85.2°F respectively.

Sea Water Temperature in January

Select Year: 2025 2024 2023

The average sea surface temperature in January 2025 for Rio de Janeiro was 81.3°F. The maximum and minimum values were 76.8°F and 86.2°F respectively.

Sea Water Temperature in March

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for Rio de Janeiro was 81.3°F. The maximum and minimum values were 79.4°F and 82.4°F respectively.

Best Time to Visit Rio de Janeiro
The most sunny months:
July 20 days
May 19 days
August 19 days
The most warm months:
February 92.9 °F
January 91.6 °F
March 90.9 °F
Warmest sea temperature:
February 83.0 °F
January 82.6 °F
March 82.2 °F
The most cold months:
August 82.3 °F
June 82.8 °F
July 82.9 °F
The most rainy months:
November 9 days
December 8 days
January 8 days
The most windy months:
October 7 mph
September 7 mph
November 7 mph

Rio de Janeiro on the Weather Map

24 Hours Weather Forecast
Rio de Janeiro
Local time: 08:26
15 dec, monday
0900 94°F
NW
2 mph
1200 94°F
NW
9 mph
1500 86°F
NW
7 mph
1800 80°F
SE
0 mph
2100 80°F
SE
3 mph
16 dec, tuesday
0000 80°F
S
3 mph
0300 78°F
SE
4 mph
0600 82°F
S
4 mph