Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
September verdict
Louisiade Archipelago, Papua New Guinea in September
Weather score65Good
Good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 6.7h per day, enough for a balanced month. Rainfall averages 117mm, so some wet days are possible.
September weather
Monthly averages
Temp
29°C
Rain
117mm
Sun
6.7h
Sea
27°C
Weather score
65
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 117mm, so some wet days are possible.
Some sun
Sunshine averages 6.7h per day, enough for a balanced month.
Swimmable
Sea temperatures average 27°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Louisiade Archipelago, Papua New Guinea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September29°C average high
September is close to Louisiade Archipelago's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
September117mm average rain
September sits on the drier side of Louisiade Archipelago's year, which helps with sightseeing and transfers.
Driest monthsJune to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6.7 hours average sun
September is brighter than Louisiade Archipelago's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsAugust to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September27°C average sea
September is one of the cooler sea months locally, though the water still averages warm enough for most swimmers.
Warmest seaJanuary to May and November to December
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
September65 weather score
September scores above Louisiade Archipelago's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to December
These months have the strongest weather score in the monthly averages.