Penarth monthly weather averages

  • Average daytime temperature

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

    Penarth average temperature chart
    Average monthly temperatures in Penarth (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 7.2 7.2 9.4 12.1 15.3 18.3 20.2 20 17.7 14.3 10.3 8.2
    °F 44.9 44.9 48.9 53.7 59.5 64.9 68.3 67.9 63.8 57.7 50.6 46.7

    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 Penarth (mm and inches)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    mm 104 76 79 60 65 65 67 81 91 101 105 109
    inches 4.1 3 3.1 2.4 2.6 2.5 2.6 3.2 3.6 4 4.1 4.3
    Rainy days 20 15 17 15 15 14 13 15 15 18 18 19
  • Average daily sunshine

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

    Average daily sunshine Penarth
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Hrs sunshine 1.9 2.8 4.1 5.9 6.9 7.4 6.9 6.6 5.1 3.4 2.7 1.8
  • Day / night temperatures

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

    Maximum and minimum daily temperatures in Penarth (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Min °C 2.1 1.7 2.9 4.4 7.2 10.2 12.1 12.1 10.4 8 4.6 2.9
    Max °C 7.3 7.3 9.6 12.3 15.5 18.5 20.4 20.2 17.9 14.5 10.5 8.3
    Min °F 35.8 35.1 37.1 39.8 44.9 50.3 53.7 53.7 50.6 46.3 40.2 37.2
    Max °F 40.5 40.1 43.2 46.9 52.3 57.7 61.2 61 57.4 52.2 45.5 42.1
  • Sea temperature

    The graph below shows the average sea temperature.

    Average sea temperature around Penarth in degrees centigrade and fahrenheit
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 10.2 9.3 9.2 9.9 11.2 13.1 15.1 16.2 16.1 14.9 13.3 11.6
    °F 50.3 48.8 48.6 49.8 52.2 55.6 59.1 61.2 60.9 58.8 55.9 52.9
  • Wind speed

    The graph below shows the average wind speed.

    Average wind speed in Penarth (mph and kmh)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    km/h 19 19 19 18 17 16 15 16 16 17 18 19
    mph 12 12 12 11 10 10 9 10 10 11 11 12

    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 Penarth
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    91% 88% 85% 82% 82% 82% 83% 83% 86% 89% 89% 92%

Other monthly averages

Penarth weather stats

Penarth weather statistics
Hottest month: July 20.2°C 68.4°F
Driest month: April 60mm 2.4ins
Sunniest month: August 6.6hrs
Coldest month: February 7.2°C 45°F
Wettest month: December 109mm 4.3ins
Warmest sea: August 16.2°C 61.2°F
Map showing location of Penarth (51.43942, -3.17609)

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