Papua New Guinea in september: average Weather, Temperature and Climate, Where to go?
Weather in Papua New Guinea in september 2025
Below, find the the weather forecast for the month of september for most popular cities in Papua New Guinea. These forecasts are probabilities for the month of september from weather reports for many years. The percentage indicates the possibility of having the weather indicated.
Average weather in september in Port Moresby
good weather UV index: 7
Weather at 6am
77°F
Clear/Sunny
43% of time
32%
13%
8%
Weather at 12pm
85°F
Moderate rain at times
43% of time
34%
19%
5%
Weather at 6pm
77°F
Moderate rain at times
45% of time
20%
19%
15%
Weather at 3am
76°F
34%
34%
18%
9%
More information about the weather in Port Moresby in september
Where to go in Papua New Guinea in september?
Where to go in Papua New Guinea in september: destination map
perfect weather
good
tolerable
bad
very bad
Where to go in each region in september?
| Highlands Region of Papua New Guinea (Goroka, Mendi, Wabag...) | 70°F to 76°F | 19 à 26 days | very bad weather* | |
| Islands (Rabaul, Kavieng, Kimbe...) | 85°F to 88°F | 14 à 25 days | 85°F to 86°F | tolerable weather* |
| Momase Region (Madang, Lae, Vanimo...) | 79°F to 88°F | 11 à 21 days | 85°F to 86°F | tolerable weather* |
| South of Papua New Guinea (Port Moresby, Kiunga, Daru...) | 76°F to 88°F | 7 à 20 days | 79°F to 81°F | bad weather* |
Where should you go in Papua New Guinea in september when it comes to the weather?
Remember:
The climate in Papua New Guinea in september ranges from good to very bad depending on the region and city.
It is not perfect, however, the weather in Papua New Guinea that month should be good in Port Moresby. I allows to savor sightseeing in this city. And even why not take a little time to lazing in the sun!
If you do not go lazing in the sun, but, for example to go sightseeing, the cities of Rabaul, Goroka, Kavieng and Madang have a just ok weather for it in september. Finally, avoid going to Kiunga and Lae that month because the climate is frankly unfavorable.
Climate in Papua New Guinea in september
Climate in Port Moresby in september
In september, the mean temperature in Port Moresby is 81°F (maximum temperature is 85°F and minimum temperature is 77°F). The climate is very hot around this city in this month. With 7.6in over 11 days, you risk getting wet slightly for your trip. But this is moderate and you will not be too bothered by it.
With good weather conditions, the month of september is a recommended month to go in Port Moresby in Papua New Guinea.
| September | |||
| Average temperature | 81°F | ||
| Highest temperature | 85°F | ||
| Lowest temperature | 77°F | ||
| Sea temperature | 79°F | ||
| Rainfall | 7.6in | ||
| Number of days with rainfall | 11 day(s) (37%) | ||
| Humidity | 82% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 36% | ||
| Length of day | 12:03 | ||
| Our opinion at whereandwhen.net | good |
Climate in Madang in september
In the month of september, the mean temperature in Madang is 83°F (maximum temperature is 88°F and minimum temperature is 79°F). The climate is very hot in that locality in the month of september. With 8.4in over 14 days, you risk getting wet slightly throughout your vacations. But this is rather moderate and it is only of temporary showers.
With a correct weather, the month of september is okay (but not good month) for traveling there in Papua New Guinea.
| September | |||
| Average temperature | 83°F | ||
| Highest temperature | 88°F | ||
| Lowest temperature | 79°F | ||
| Sea temperature | 84°F | ||
| Rainfall | 8.4in | ||
| Number of days with rainfall | 14 day(s) (46%) | ||
| Humidity | 83% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 34% | ||
| Length of day | 12:04 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Lae in september
In the month of september, maximum temperature is 79°F and minimum temperature is 70°F (for an average temperature of 76°F). The climate enjoyable there in the month of september. With 12.8in over 16 days, you will suffer the rain for your stay. So remember to bring adapted clothes.
With a bad weather, september is not the best time to go in this locality in Papua New Guinea.
| September | |||
| Average temperature | 76°F | ||
| Highest temperature | 79°F | ||
| Lowest temperature | 70°F | ||
| Sea temperature | 84°F | ||
| Rainfall | 12.8in | ||
| Number of days with rainfall | 16 day(s) (53%) | ||
| Humidity | 85% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 44% | ||
| Length of day | 12:04 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Goroka in september
In the month of september, the mean temperature in Goroka is 68°F (maximum temperature is 76°F and minimum temperature is 61°F). The climate quite good in that area in this month. With 11.3in over 19 days, rainfall can happen for your stay. But this is pretty moderate and you will not be too bothered by it.
With proper weather, september is okay (but not good month) for traveling in Goroka.
| September | |||
| Average temperature | 68°F | ||
| Highest temperature | 76°F | ||
| Lowest temperature | 61°F | ||
| Rainfall | 11.3in | ||
| Number of days with rainfall | 19 day(s) (65%) | ||
| Humidity | 90% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 44% | ||
| Length of day | 12:04 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Kavieng in september
In the month of september, maximum temperature is 86°F and minimum temperature is 83°F (for an average temperature of 85°F). The climate is very hot in that area in september. With 17.3in over 18 days, you will suffer the rain for your stay. Remember to pack adapted clothes.
With proper weather, the month of september is okay (but not good month) for traveling in this city.
| September | |||
| Average temperature | 85°F | ||
| Highest temperature | 86°F | ||
| Lowest temperature | 83°F | ||
| Sea temperature | 86°F | ||
| Rainfall | 17.3in | ||
| Number of days with rainfall | 18 day(s) (61%) | ||
| Humidity | 76% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 43% | ||
| Length of day | 12:05 | ||
| Our opinion at whereandwhen.net | tolerable |
All cities in Papua New Guinea in september
| Port Moresby in september | good weather |
| Madang in september | tolerable weather |
| Lae in september | tolerable weather |
| Goroka in september | tolerable weather |
| Kavieng in september | tolerable weather |
| Kiunga in september | very bad weather |
| Rabaul in september | tolerable weather |
| Aitape in september | bad weather |
| Alotau in september | good weather |
| Ambunti in september | tolerable weather |
| Arawa in september | very bad weather |
| Daru in september | bad weather |
| Kerema in september | bad weather |
| Kimbe in september | tolerable weather |
| Lorengau in september | tolerable weather |
| Mendi in september | very bad weather |
| Popondetta in september | tolerable weather |
| Vanimo in september | good weather |
| Wabag in september | very bad weather |
| Wewak in september | tolerable weather |
Weather data for Papua New Guinea in september:
Weather data for Papua New Guinea in september is derived from an average of the weather forecast since 2009 in Papua New Guinea. There is a margin of error and these forecasts are to be considered as general information only. The weather in Papua New Guinea can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Papua New Guinea.