What is the current water temperature in Niterói?

Q: What is the current water temperature in Niterói?

As of now, in Niterói, the water temperature is 22.51°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

Brazil > Niterói

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.

72.5

°F

July 27, 09:22

Trend:

increasing

Yesterday:

71.6°F

Tomorrow:

72.9°F

Sunrise:

06:29

Sunset:

17:29

Day Length:

11 h. 0 min.

Niterói in August

Minimum:

76.2°F

Average:

79.6°F

Maximum:

84.1°F

Sea water temperature in Niterói today

As of now, in Niterói, the water temperature is 72.5°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 0.4°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 73.4°F on 2020, while the historical minimum was 70.9°F on 2025.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 72.4°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Niterói

Date	Current Year actual* / forecast**	last year	10 years average
Jul 13	72.1°F	71.0°F	71.9°F
Jul 14	71.9°F	70.3°F	71.8°F
Jul 15	71.8°F	70.6°F	71.8°F
Jul 16	71.5°F	70.6°F	71.9°F
Jul 17	70.8°F	70.4°F	71.7°F
Jul 18	71.3°F	70.5°F	71.5°F
Jul 19	71.6°F	70.4°F	71.8°F
Jul 20	71.6°F	70.2°F	71.6°F
Jul 21	72.1°F	70.4°F	71.4°F
Jul 22	72.2°F	71.5°F	71.9°F
Jul 23	71.9°F	71.1°F	71.7°F
Jul 24	71.2°F	70.9°F	71.9°F
Jul 25	71.6°F	70.6°F	71.8°F
Jul 26	71.6°F	70.7°F	71.9°F
Jul 27	72.5°F	70.9°F	72.1°F
Jul 28	72.9°F	71.5°F	72.5°F
Jul 29	72.9°F	71.4°F	72.5°F
Jul 30	72.7°F	71.5°F	72.2°F
Jul 31	72.4°F	70.4°F	71.9°F
Aug 1	72.2°F	69.5°F	71.8°F
Aug 2	72.0°F	69.6°F	71.6°F
Aug 3	71.7°F	69.2°F	71.2°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 Niterói by month

In Niterói, the months October through May offer comfortable swimming conditions, which amounts to 263 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	71.9°F	5mi
Duque de Caxias	72.2°F	15mi
São João de Meriti	72.2°F	18mi
Belford Roxo	72.2°F	21mi

* current water temperature in this city

** straight line distance from Niterói