Weather in Port Moresby in September
In an average September, Port Moresby sees a daily high around 29°C and a low around 21°C, based on 1980–2026 of local climate records.
| Average high | 29°C |
|---|---|
| Typical high range | 27°C to 30°C |
| Average low | 21°C |
| Typical low range | 19°C to 23°C |
| Average daily precipitation | 3 mm |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
33°C
2026-09-09
Lowest
24°C
2018-09-19
Low
Highest
24°C
2017-09-25
Lowest
14°C
1997-09-07
Feels-like
Highest
45°C
2010-09-18
Lowest
24°C
2018-09-19
Humidity
Highest
23.1 g/m³
2016-09-30
Lowest
11.5 g/m³
1997-09-07
Wind
Highest
31 km/h
2026-09-18
Lowest
5 km/h
1988-09-06
Gust
Highest
61 km/h
2013-09-02
Lowest
17 km/h
2016-09-14
Precip
Wettest
250 mm
1985
Driest
0 mm
2026
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