São Sebastião monthly weather averages

Contents

Average daytime temperature

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

São Sebastião average temperature chart (Celsius) São Sebastião average temperature chart (Fahrenheit)
Average monthly temperatures in São Sebastião (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 31.5 31.2 31.1 29.6 28 26.5 25.8 26.3 27.7 29.8 31.2 31.6
°F 88.7 88.1 87.9 85.2 82.4 79.8 78.5 79.3 81.9 85.6 88.2 88.8

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.

São Sebastião monthly rainfall chart (mm) São Sebastião monthly rainfall chart (inches)
Average monthly rainfall in São Sebastião (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 30 40 75 129 172 161 150 93 65 28 25 32
inches 1.2 1.6 2.9 5.1 6.8 6.3 5.9 3.6 2.5 1.1 1 1.3
Rainy days 18 19 24 25 27 26 27 23 20 15 14 16

Average annual rainfall in São Sebastião: 950.6mm (374.3 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in São Sebastião

São Sebastião average daily sunshine chart
Average daily sunshine São Sebastião
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 8.4 7.6 7.3 6.6 6.2 5.7 5.6 6.7 7.4 8.7 9.5 8.6

Day / night temperatures

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

São Sebastião average minimum / maximum temperatures (Celsius) São Sebastião average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in São Sebastião (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 21.9 22 22.1 21.5 20.8 19.7 19 18.8 19.5 20.4 21.2 21.8
Max °C 31.8 31.4 31.3 29.8 28.2 26.7 26 26.5 27.9 30 31.5 31.8
Min °F 71.3 71.6 71.8 70.6 69.4 67.5 66.2 65.8 67.1 68.7 70.1 71.2
Max °F 80.2 80.1 80.1 78.1 76.1 73.8 72.5 72.7 74.7 77.4 79.3 80.2

Sea temperature

The graph below shows the average sea temperature.

São Sebastião average sea temperature chart (Celsius) São Sebastião average sea temperature chart (Fahrenheit)
Average sea temperature around São Sebastião in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 27.7 28.1 28.4 28.5 28 27.2 26.4 26 26.1 26.5 26.9 27.3
°F 81.9 82.7 83.2 83.3 82.4 80.9 79.5 78.9 79 79.7 80.4 81.1

Wind speed

The graph below shows the average wind speed.

São Sebastião average winspeed by month (km/h) São Sebastião average winspeed by month (mph)
Average wind speed in São Sebastião (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 10 9 8 8 9 9 10 11 12 12 12 11
mph 6 6 5 5 5 6 7 7 7 7 7 7

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.

São Sebastião relative humidity averages
Average relative humidity in São Sebastião
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
71% 72% 74% 79% 83% 84% 85% 83% 79% 74% 71% 71%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

São Sebastião weather stats

São Sebastião weather statistics
Hottest month: January 31.5°C 88.7°F
Driest month: November 25mm 1ins
Sunniest month: November 9.5hrs
Coldest month: July 25.8°C 78.4°F
Wettest month: May 172mm 6.8ins
Warmest sea: April 28.5°C 83.3°F
Map showing location of São Sebastião (-9.93361, -36.55417) São Sebastião map pin © Google

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