All data are in degrees Fahrenheit

en

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

77.4

°F

April 11, 05:04

Trend:

decreasing

Yesterday:

77.5°F

Tomorrow:

77.2°F

Sunrise:

06:04

Sunset:

17:43

Day Length:

11 h. 39 min.

Niterói in April

Minimum:

77.7°F

Average:

79.6°F

Maximum:

83.4°F

Sea water temperature in Niterói today

As of now, in Niterói, the water temperature is 77.4°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.5°F lower 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 fall a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 81.9°F on 2019, while the historical minimum was 76.7°F on 2024.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest 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 76.9°F, the minimum temperature may reach 76.1°F, and the maximum might stay at 77.4°F.

Daily water temperature in Niterói

Date Current Year

actual* / forecast**

last year 10 years average
Mar 28 77.2°F 79.3°F 79.6°F
Mar 29 78.7°F 79.2°F 79.7°F
Mar 30 77.1°F 79.0°F 79.4°F
Mar 31 75.9°F 79.2°F 79.3°F
Apr 1 76.2°F 79.3°F 79.6°F
Apr 2 77.3°F 79.6°F 79.9°F
Apr 3 77.4°F 80.1°F 80.0°F
Apr 4 77.2°F 79.6°F 79.5°F
Apr 5 77.0°F 81.2°F 79.4°F
Apr 6 74.4°F 81.1°F 79.2°F
Apr 7 75.2°F 80.9°F 79.3°F
Apr 8 77.4°F 79.0°F 79.2°F
Apr 9 76.6°F 77.8°F 78.9°F
Apr 10 77.5°F 77.6°F 79.1°F
Apr 11 77.4°F 77.1°F 78.9°F
Apr 12 77.2°F 77.7°F 78.7°F
Apr 13 77.1°F 76.8°F 78.5°F
Apr 14 77.4°F 76.7°F 78.9°F
Apr 15 77.4°F 75.6°F 78.8°F
Apr 16 76.7°F 75.7°F 78.2°F
Apr 17 76.4°F 75.2°F 77.9°F
Apr 18 76.1°F 75.9°F 77.5°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, 77.7°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 76.7°F 5mi
Duque de Caxias 78.5°F 15mi
São João de Meriti 78.5°F 18mi
Belford Roxo 78.5°F 21mi

* current water temperature in this city

** straight line distance from Niterói