All data are in degrees Fahrenheit

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Water temperature in Rio de Janeiro

Detailed information about the current water temperature in Rio de Janeiro. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Rio de Janeiro now

80.6

°F

March 7, 06:27

Trend:

stable

Yesterday:

81.2°F

Tomorrow:

80.6°F

Sunrise:

05:51

Sunset:

18:16

Day Length:

12 h. 25 min.

Rio de Janeiro in March

Minimum:

74.1°F

Average:

78.5°F

Maximum:

82.0°F

Sea water temperature in Rio de Janeiro today

As of now, in Rio de Janeiro, the water temperature is 80.6°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.4°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 83.9°F on 2018, while the historical minimum was 76.4°F on 2025.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 80.1°F, the minimum temperature may reach 79.6°F, and the maximum might stay at 80.6°F.

Daily water temperature in Rio de Janeiro

Date Current Year

actual* / forecast**

last year 10 years average
Feb 21 83.7°F 80.4°F 80.1°F
Feb 22 83.4°F 79.4°F 80.1°F
Feb 23 83.2°F 81.6°F 80.4°F
Feb 24 82.9°F 81.2°F 79.8°F
Feb 25 84.3°F 80.9°F 80.2°F
Feb 26 83.0°F 80.7°F 80.0°F
Feb 27 82.7°F 78.8°F 79.9°F
Feb 28 82.3°F 78.5°F 79.7°F
Mar 1 82.9°F 78.4°F 80.1°F
Mar 2 81.6°F 79.2°F 80.0°F
Mar 3 79.4°F 78.6°F 79.7°F
Mar 4 79.6°F 77.4°F 79.8°F
Mar 5 79.6°F 77.0°F 79.7°F
Mar 6 81.2°F 78.0°F 80.2°F
Mar 7 80.6°F 76.4°F 80.2°F
Mar 8 80.6°F 77.6°F 80.2°F
Mar 9 80.4°F 76.6°F 80.0°F
Mar 10 80.2°F 77.2°F 79.8°F
Mar 11 80.3°F 78.0°F 79.9°F
Mar 12 80.1°F 77.7°F 79.7°F
Mar 13 79.8°F 78.4°F 79.4°F
Mar 14 79.6°F 78.2°F 79.2°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Rio de Janeiro by month

In Rio de Janeiro, the months October through May offer comfortable swimming conditions, which amounts to 227 swimming days.
The warmest water in Rio de Janeiro was recorded on February 14, 2018, reaching a 85.4°F. While the coldest temperature occurred on August 8, 2018, dipping to 67.7°F. The average readings by season are 78.8°F in Winter, 77.4°F in Spring, 72.0°F in Summer, and 73.4°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Niterói 80.4°F 5mi
Duque de Caxias 82.1°F 12mi
São João de Meriti 82.1°F 14mi
Belford Roxo 82.1°F 17mi

* current water temperature in this city

** straight line distance from Rio de Janeiro