All data are in degrees Fahrenheit

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Water temperature in Niterói

Detailed information about the current water temperature in Niterói. 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 Niterói now

75.9

°F

May 7, 20:09

Trend:

increasing

Yesterday:

75.6°F

Tomorrow:

76.0°F

Sunrise:

06:14

Sunset:

17:23

Day Length:

11 h. 9 min.

Niterói in May

Minimum:

77.0°F

Average:

79.6°F

Maximum:

83.7°F

Sea water temperature in Niterói today

As of now, in Niterói, the water temperature is 75.9°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is about the same as the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 81.2°F on 2019, while the historical minimum was 73.3°F on 2024.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 75.5°F, the minimum temperature may reach 75.2°F, and the maximum might stay at 76.0°F.

Daily water temperature in Niterói

Date Current Year

actual* / forecast**

last year 10 years average
Apr 23 74.0°F 76.4°F 76.6°F
Apr 24 73.7°F 76.0°F 76.5°F
Apr 25 75.4°F 76.0°F 76.5°F
Apr 26 76.8°F 76.1°F 76.7°F
Apr 27 77.5°F 75.7°F 76.5°F
Apr 28 76.2°F 76.0°F 76.7°F
Apr 29 76.6°F 75.7°F 76.8°F
Apr 30 76.9°F 75.8°F 76.8°F
May 1 77.0°F 75.3°F 76.5°F
May 2 76.9°F 75.3°F 76.1°F
May 3 76.5°F 75.3°F 76.1°F
May 4 76.2°F 74.9°F 76.0°F
May 5 75.5°F 75.4°F 75.8°F
May 6 75.6°F 75.2°F 76.0°F
May 7 75.9°F 76.6°F 75.9°F
May 8 76.0°F 76.1°F 76.0°F
May 9 75.6°F 75.2°F 75.5°F
May 10 75.2°F 74.9°F 75.2°F
May 11 75.2°F 74.8°F 75.2°F
May 12 75.5°F 75.1°F 75.5°F
May 13 75.7°F 76.7°F 75.7°F
May 14 75.7°F 75.5°F 75.7°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 Niterói by month

In Niterói, the months October through May offer comfortable swimming conditions, which amounts to 265 swimming days.
The warmest water in Niterói was recorded on February 14, 2018, reaching a 86.1°F. While the coldest temperature occurred on August 8, 2018, dipping to 67.8°F. The average readings by season are 79.4°F in Winter, 77.6°F in Spring, 72.2°F in Summer, and 74.1°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Rio de Janeiro 75.5°F 5mi
Duque de Caxias 76.8°F 15mi
São João de Meriti 76.8°F 18mi
Belford Roxo 76.8°F 21mi

* current water temperature in this city

** straight line distance from Niterói