The climate in Port Moresby during September can be summarized as hot, humid and a little damp.
September is in the spring in Port Moresby and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 22°C (72°F) is normal.
|Daytime temperature||29.9°C 85.8°F|
|Nightly temperature||22.1°C 71.8°F|
|Average temperature||26°C 78.8°F|
|Daily sunshine||7.1 hrs|
|Avg rainfall||82 mm 3.2 ins|
|Rainy days||7 days|
|Sea temperature||25.6°C 78.2°F|
|Windspeed||18.4kph 11 mph|
On average September is the 4th driest month of the year in Port Moresby with around 82mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.1 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Port Moresby in September 2023.
|Hottest month:||December||31.3°C 88.3°F|
|Driest month:||July||40mm 1.6ins|
|Coldest month:||July||28.6°C 83.5°F|
|Wettest month:||March||248mm 9.8ins|