Cascais monthly weather averages

  • Average daytime temperature

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

    Cascais average temperature chart
    Average monthly temperatures in Cascais (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 14.2 15.1 16.9 18.2 20.8 23.6 26.2 26.6 25.4 21.7 17.2 14.6
    °F 57.5 59.2 62.5 64.8 69.4 74.6 79.2 79.9 77.7 71 63 58.2

    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.

    Average monthly rainfall in Cascais (mm and inches)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    mm 123 121 78 71 46 26 7 8 31 89 122 120
    inches 4.9 4.8 3.1 2.8 1.8 1 0.3 0.3 1.2 3.5 4.8 4.7
    Rainy days 15 14 13 12 9 5 2 2 6 11 13 14
  • Average daily sunshine

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

    Average daily sunshine Cascais
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Hrs sunshine 5.1 5.7 7.1 8.3 9.8 10.6 11.9 11.6 9.1 7.3 5.7 5.1
  • Day / night temperatures

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

    Maximum and minimum daily temperatures in Cascais (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Min °C 8.1 9 9.7 10.8 12.8 15.2 17 17.2 16.6 14.4 11 8.9
    Max °C 14.3 15.3 17.1 18.4 21 23.9 26.5 26.9 25.6 21.9 17.4 14.7
    Min °F 46.6 48.1 49.5 51.4 55 59.3 62.5 62.9 61.9 57.8 51.8 48
    Max °F 52.2 53.8 56.1 58.3 62.4 67.1 71.1 71.6 70 64.6 57.6 53.2
  • Sea temperature

    The graph below shows the average sea temperature.

    Average sea temperature around Cascais in degrees centigrade and fahrenheit
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 15.7 15.1 15.2 15.8 16.9 18.7 19.8 20.4 20.4 19.7 18.3 16.8
    °F 60.2 59.2 59.3 60.5 62.5 65.6 67.7 68.7 68.7 67.5 64.9 62.2
  • Wind speed

    The graph below shows the average wind speed.

    Average wind speed in Cascais (mph and kmh)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    km/h 14 15 14 14 14 14 14 14 13 13 13 14
    mph 9 9 9 9 9 9 9 9 8 8 8 9

    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.

    Average relative humidity in Cascais
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    81% 79% 73% 71% 68% 68% 65% 64% 69% 74% 78% 80%
Cascais

Other monthly averages

Cascais weather stats

Cascais weather statistics
Hottest month: August 26.6°C 79.9°F
Driest month: July 7mm 0.3ins
Sunniest month: August 11.6hrs
Coldest month: January 14.2°C 57.6°F
Wettest month: January 123mm 4.8ins
Warmest sea: September 20.4°C 68.7°F
Map showing location of Cascais (38.6979, -9.42146)

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