Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
Weather Guide
Manus, Papua New Guinea Average Monthly Weather
Weather score51Mixed annual avg
Best months: May, September, August
Across the year, average daytime temperatures are around 30°C, sunshine averages 5.6h per day, and rainfall totals about 3609mm. Sea temperatures average 30°C across the year.
Annual weather
Annual averages
Temp
30°C
Rain
3609mm
Annual total
Sun
5.6h
Sea
30°C
Weather score
51
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 349mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.5h 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
July30°C average high
July sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJanuary to April and June to December
This stretch sets the upper range for average daytime heat.
Rain
July349mm average rain
July is one of Manus' wettest months, so rain is likely to be a major planning factor.
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
July5.5 hours average sun
July sits close to Manus' yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJanuary, April, and August to September
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July29°C average sea
July 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
July52 weather score
July 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.