Annual mean 27°C · wettest around November · prevailing wind S
Warmest
31.7 °C
Coldest
29.6 °C
Wettest
82%
Windiest
6.5 m/s
Prevailing
S
5.3 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Port Moresby over the whole year is 27°C. November is the hottest month, with highs of about 32°C; August is the coldest, with lows of about 24°C. The rainy (wet) season in Port Moresby runs from November to May, peaking in November with a 72% chance of rain on a given day. The dry season is June to October; June is the driest month, at 45%. Winds in Port Moresby are highest in August, averaging 5.0 m/s (18 km/h), and lightest in March, at 3.0 m/s (11 km/h). The prevailing wind is from the S. The clearest skies in Port Moresby come in November, when the sky is typically 58% covered; September is the cloudiest month, at 68%.
Month by month Port Moresby climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
31°C
24°C
33°C
71%
63%
3.5 m/s
4
33
1
February
31°C
24°C
33°C
71%
64%
3.7 m/s
5
37
1
March
31°C
24°C
33°C
72%
67%
3.0 m/s
2
35
0
April
31°C
24°C
34°C
66%
62%
3.0 m/s
1
35
0
May
31°C
25°C
33°C
71%
61%
3.7 m/s
2
44
0
June
30°C
24°C
32°C
45%
59%
4.2 m/s
7
59
0
July
30°C
24°C
31°C
48%
62%
4.6 m/s
13
62
1
August
30°C
24°C
30°C
46%
65%
5.0 m/s
15
65
1
September
30°C
24°C
31°C
48%
68%
5.0 m/s
12
57
1
October
31°C
24°C
33°C
58%
65%
4.0 m/s
4
49
0
November
32°C
25°C
33°C
72%
58%
3.7 m/s
1
44
0
December
32°C
25°C
34°C
72%
59%
3.4 m/s
1
36
0
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Port Moresby weather by season
Year round, Port Moresby has days of about 30°C at their warmest in July, its coolest month, and 32°C in November, its warmest; the coolest hours of the day run from 24°C to 25°C through the year, and the average temperature over the year is 27°C around the clock. Rain is most likely around November and least likely around June. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Port Moresby weather in winterJune to August
High 30°CLow 24°CRain 46%
Winter in Port Moresby has typical daily highs of about 30°C and lows of about 24°C, with a 46% chance of rain on a given day.
Port Moresby weather in springSeptember to November
High 31°CLow 24°CRain 60%
Spring in Port Moresby has typical daily highs of about 31°C and lows of about 24°C, with a 60% chance of rain on a given day.
Port Moresby weather in summerDecember to February
High 31°CLow 24°CRain 71%
Summer in Port Moresby has typical daily highs of about 31°C and lows of about 24°C, with a 71% chance of rain on a given day.
Port Moresby weather in autumnMarch to May
High 31°CLow 24°CRain 70%
Autumn in Port Moresby has typical daily highs of about 31°C and lows of about 24°C, with a 70% chance of rain on a given day.
When is the rainy season in Port Moresby?
The rainy (wet) season in Port Moresby runs from November to May, peaking in November with a 72% chance of rain on a given day. The dry season is June to October; June is the driest month, at 45%.
What time of year is Port Moresby windiest?
Winds in Port Moresby are highest in August, averaging 5.0 m/s (18 km/h), and lightest in March, at 3.0 m/s (11 km/h). The prevailing wind is from the S.
What is the average temperature in Port Moresby year round?
The average temperature in Port Moresby over the whole year is 27°C. November is the hottest month, with highs of about 32°C; August is the coldest, with lows of about 24°C.