Niterói monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Niterói

Niterói average temperature chart (Celsius) Niterói average temperature chart (Fahrenheit)
Average monthly temperatures in Niterói (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 30.6 30.8 30.1 28 26.4 25.4 25.1 25.6 25.6 26.5 27.4 28.8
°F 87 87.5 86.2 82.4 79.5 77.8 77.2 78.1 78.1 79.6 81.4 83.9

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Niterói monthly rainfall chart (mm) Niterói monthly rainfall chart (inches)
Average monthly rainfall in Niterói (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 146 137 144 123 89 55 52 53 64 91 114 140
inches 5.7 5.4 5.6 4.9 3.5 2.2 2.1 2.1 2.5 3.6 4.5 5.5
Rainy days 20 16 15 15 12 10 10 9 12 18 20 21

Average annual rainfall in Niterói: 1142mm (449.6 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Niterói

Niterói average daily sunshine chart
Average daily sunshine Niterói
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.9 7.1 6.7 6 5.7 5.7 6.1 6.5 5.1 5.2 5.8 5.7

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Niterói average minimum / maximum temperatures (Celsius) Niterói average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Niterói (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 22.5 22.6 22.1 20.4 18.4 16.8 16.3 16.8 17.8 19 20 21.2
Max °C 30.8 31.1 30.3 28.2 26.6 25.7 25.4 25.9 25.8 26.7 27.6 29
Min °F 72.4 72.6 71.8 68.7 65.1 62.2 61.3 62.2 64 66.1 68 70.2
Max °F 79.9 80.2 79.2 75.7 72.5 70.2 69.4 70.3 71.2 73 74.8 77.2

Sea temperature

The graph below shows the average sea temperature.

Niterói average sea temperature chart (Celsius) Niterói average sea temperature chart (Fahrenheit)
Average sea temperature around Niterói in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 25.7 26.1 26.3 25.8 24.3 23 22.3 21.9 21.9 22.5 23.6 24.8
°F 78.2 79 79.3 78.5 75.8 73.5 72.1 71.4 71.5 72.5 74.4 76.6

Wind speed

The graph below shows the average wind speed.

Niterói average winspeed by month (km/h) Niterói average winspeed by month (mph)
Average wind speed in Niterói (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 9 8 8 8 7 6 7 8 9 9 9 9
mph 6 5 5 5 4 4 4 5 6 6 6 6

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Niterói relative humidity averages
Average relative humidity in Niterói
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
77% 78% 79% 80% 81% 80% 79% 77% 78% 79% 79% 79%

Other monthly averages

UV index Best time to go?

Niterói weather stats

Niterói weather statistics
Hottest month: February 30.8°C 87.4°F
Driest month: July 52mm 2ins
Sunniest month: August 6.5hrs
Coldest month: July 25.1°C 77.2°F
Wettest month: January 146mm 5.7ins
Warmest sea: March 26.3°C 79.3°F
Map showing location of Niterói (-22.88333, -43.10361) Niterói map pin © Google

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