Port Moresby weather in August 2025

Expect 84°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Port Moresby in August. Check more long-term weather averages for Port Moresby in August before you book your next holiday to Papua New Guinea in 2025/2026.

  • 84°F maximum daytime temperature in August in Port Moresby84
    84°F max day temperature
  • 7 hours of sunshine per day
  • 6 days with some rainfall in August in Port Moresby6
    6 days with some rainfall
  • 72°F minimum night-time temperature in August in Port Moresby72
    72°F min night temperature
  • 12 hours of daylight per day in August in Port Moresby12
    12 hours of daylight per day
  • High heat & humidity in August in Port MoresbyH
    High heat & humidity
  • 1.9 inches monthly rainfall in August in Port Moresby1.9
    1.9 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Port Moresby11
    11+ (Extreme) UV index
  • 77°F sea temperature in August in Port Moresby77
    77°F sea temperature

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The August 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.

Metric (°C)  |  Imperial (°F)

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How hot is it in Port Moresby in August?

Daytime temperatures usually reach 84°F in Port Moresby in August with high heat and humidity, falling to 72°F at night.

How sunny is it in Port Moresby in August?

There are normally 7 hours of bright sunshine each day in Port Moresby in August - that's 56% of daylight hours.

How warm is the sea around Port Moresby in August?

The average sea temperature around Port Moresby in August is 77°F.

Does it rain in Port Moresby in August?

There are usually 6 days with some rain in Port Moresby in August and the average monthly rainfall is 1.9 inches.

Port Moresby August sunrise & sunset times

Browse the sunrise and sunset times for Port Moresby in August 2025. Select a month to view Port Moresby sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:27 18:09
Saturday, 16th August 2025 06:22 18:10
Sunday, 31st August 2025 06:14 18:09

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