Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
Weather Guide
Bougainville, Papua New Guinea Average Monthly Weather
Weather score55Good annual avg
Best months: June, December, May
Across the year, average daytime temperatures are around 29°C, sunshine averages 5.2h per day, and rainfall totals about 3521mm. Sea temperatures average 30°C across the year.
Annual weather
Annual averages
Temp
29°C
Rain
3521mm
Annual total
Sun
5.2h
Sea
30°C
Weather score
55
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 380mm, so showers are a real planning factor.
Limited sun
Sunshine averages 4.5h per day, so this is not one of the brighter months.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Bougainville, Papua New Guinea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July28°C average high
July is close to Bougainville's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
July380mm average rain
July is one of Bougainville's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to February, May to June, and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July4.5 hours average sun
July is close to Bougainville's usual sunshine level, with limited seasonal swing across the year.
Brightest monthsJanuary, March to June, and August to December
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
July54 weather score
July is close to Bougainville's usual weather score, with limited month-to-month change.
Best weather monthsAll year
The weather score stays consistently strong through the year.