Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
September verdict
Rennell and Bellona, Solomon Islands in September
Weather score64Good
Good for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 6.4h per day, enough for a balanced month. Rainfall averages 176mm, so some wet days are possible.
September weather
Monthly averages
Temp
30°C
Rain
176mm
Sun
6.4h
Sea
28°C
Weather score
64
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 176mm, so some wet days are possible.
Some sun
Sunshine averages 6.4h per day, enough for a balanced month.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Rennell and Bellona, Solomon Islands with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September30°C average high
September is close to Rennell and Bellona's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
September176mm average rain
September is one of the drier months, but average rainfall is still high enough to keep backup plans useful.
Driest monthsMay to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6.4 hours average sun
September is brighter than Rennell and Bellona's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJanuary, April to May, and August to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September28°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 30°C in this stretch, so swimming comfort is at its strongest.
Weather score
September64 weather score
September is one of Rennell and Bellona's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsMay to December
These months have the strongest weather score in the monthly averages.