Papua New Guinea weather in September 2025

Expect 86°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Papua New Guinea in September. Check more long-term weather averages for Papua New Guinea in September before you book your next holiday to Papua New Guinea in 2025/2026.

  • 86°F maximum daytime temperature in September in Papua New Guinea (Port Moresby)86
    86°F max day temperature
  • 7 hours of sunshine per day
  • 7 days with some rainfall in September in Papua New Guinea (Port Moresby)7
    7 days with some rainfall
  • 72°F minimum night-time temperature in September in Papua New Guinea (Port Moresby)72
    72°F min night temperature
  • 12 hours of daylight per day in September in Papua New Guinea (Port Moresby)12
    12 hours of daylight per day
  • High heat & humidity in September in Papua New Guinea (Port Moresby)H
    High heat & humidity
  • 3.2 inches monthly rainfall in September in Papua New Guinea (Port Moresby)3.2
    3.2 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Papua New Guinea (Port Moresby)11
    11+ (Extreme) UV index
  • 77°F sea temperature in September in Papua New Guinea (Port Moresby)77
    77°F sea temperature

More about Papua New Guinea

Papua New Guinea by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Papua New Guinea

Wild Frontiers: Top deals on Papua New Guinea tours

  • Check out top deals on tours to Papua New Guinea
  • Explore places to visit & most popular itineraries
  • Filter deals by experience, duration, level & price
Go to Wild Frontiers deal >>

View all Wild Frontiers offers

Wild FrontiersTour deal finder

The September weather guide for Papua New Guinea (Port Moresby) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Papua New Guinea destinations

Below are average maximum temperatures at popular countries, regions and places in Papua New Guinea in September. Select a holiday destination to see more weather parameters.

All Papua New Guinea destinations

Metric (°C)  |  Imperial (°F)

Back to top

How hot is it in Papua New Guinea in September?

Daytime temperatures usually reach 86°F in Port Moresby, Papua New Guinea in September with high heat and humidity, falling to 72°F at night.

How sunny is it in Papua New Guinea in September?

There are normally 7 hours of bright sunshine each day in Port Moresby, Papua New Guinea in September - that's 56% of daylight hours.

How warm is the sea around Papua New Guinea in September?

The average sea temperature around Port Moresby, Papua New Guinea in September is 77°F.

Does it rain in Papua New Guinea in September?

There are usually 7 days with some rain in Port Moresby, Papua New Guinea in September and the average monthly rainfall is 3.2 inches.

Papua New Guinea September sunrise & sunset times

Browse the sunrise and sunset times for Papua New Guinea in September 2025. Select a month to view Papua New Guinea sunrise and sunset times for the next 12 months. The Papua New Guinea sunrise and sunset times shown below are for Port Moresby.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:14 18:09
Monday, 15th September 2025 06:05 18:08
Tuesday, 30th September 2025 05:56 18:07

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^