Port Moresby monthly weather averages

  • Average daytime temperature

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

    Port Moresby average temperature chart
    Average monthly temperatures in Port Moresby (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 30.8 30.6 30.3 30.1 29.4 29.1 28.6 28.9 29.7 30.8 31.2 31.3
    °F 87.5 87.1 86.6 86.2 84.9 84.4 83.5 84.1 85.5 87.4 88.2 88.3

    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 Port Moresby (mm and inches)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    mm 231 225 248 149 107 68 40 49 82 87 98 168
    inches 9.1 8.9 9.8 5.8 4.2 2.7 1.6 1.9 3.2 3.4 3.9 6.6
    Rainy days 19 17 19 14 11 7 7 6 7 7 8 13
  • Average daily sunshine

    The bar chart below shows the average daily sunshine hours in Port Moresby

    Average daily sunshine Port Moresby
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Hrs sunshine 6.3 5.8 5.9 6.2 6.3 6.5 6.1 7 7.1 7.6 7.3 6.5
  • Day / night temperatures

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

    Maximum and minimum daily temperatures in Port Moresby (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Min °C 23 23 22.9 22.7 23.5 22.4 21.8 21.9 22.1 22.9 22.8 23.2
    Max °C 31 30.8 30.5 30.3 29.6 29.3 28.8 29.1 29.9 31 31.4 31.5
    Min °F 73.4 73.4 73.2 72.9 74.2 72.2 71.2 71.4 71.8 73.1 73 73.7
    Max °F 80.6 80.4 80.1 79.7 79.7 78.4 77.5 77.9 78.8 80.4 80.8 81.1
  • Sea temperature

    The graph below shows the average sea temperature.

    Average sea temperature around Port Moresby in degrees centigrade and fahrenheit
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 29.3 29.2 29.2 28.7 27.8 26.8 25.9 25.4 25.6 26.5 27.7 28.8
    °F 84.7 84.6 84.5 83.7 82 80.2 78.6 77.8 78.2 79.6 81.9 83.8
  • Wind speed

    The graph below shows the average wind speed.

    Average wind speed in Port Moresby (mph and kmh)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    km/h 12 12 13 16 17 17 19 18 18 17 14 12
    mph 8 7 8 10 11 11 12 11 11 11 9 8

    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 Port Moresby
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    80% 82% 82% 81% 80% 78% 78% 76% 75% 74% 75% 77%

Other monthly averages

Port Moresby weather stats

Port Moresby weather statistics
Hottest month: December 31.3°C 88.3°F
Driest month: July 40mm 1.6ins
Sunniest month: October 7.6hrs
Coldest month: July 28.6°C 83.5°F
Wettest month: March 248mm 9.8ins
Warmest sea: January 29.3°C 84.7°F
Map showing location of Port Moresby (-9.44314, 147.17972)

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