Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
September verdict
Manus, Papua New Guinea in September
Weather score55Mixed
Mixed for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 6.2h per day, enough for a balanced month. Rainfall averages 274mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
30°C
Rain
274mm
Sun
6.2h
Sea
29°C
Weather score
55
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 274mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.2h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Manus, Papua New Guinea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September30°C average high
September is one of Manus' warmest months, with daytime heat above the yearly average.
Warmest monthsJanuary to April and June to December
This stretch sets the upper range for average daytime heat.
Rain
September274mm average rain
September sits on the drier side of Manus' year, which helps with sightseeing and transfers.
Driest monthsJanuary to February, May, and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6.2 hours average sun
September is brighter than Manus' yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJanuary, April, and August to September
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September29°C average sea
September is part of a consistently warm sea-temperature pattern, so swimming comfort changes little through the year.
Warmest seaAll year
Sea temperatures stay warm enough for easy swimming through the year.
Weather score
September55 weather score
September is close to Manus' usual weather score, with limited month-to-month change.
Best weather monthsAll year
The weather score stays consistently strong through the year.