Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
Weather Guide
Rennell and Bellona, Solomon Islands Average Monthly Weather
Weather score58Good annual avg
Best months: September, June, August
Across the year, average daytime temperatures are around 30°C, sunshine averages 6.1h per day, and rainfall totals about 2764mm. Sea temperatures average 29°C across the year.
Annual weather
Annual averages
Temp
30°C
Rain
2764mm
Annual total
Sun
6.1h
Sea
29°C
Weather score
58
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 192mm, so showers are a real planning factor.
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
August30°C average high
August 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
August192mm average rain
August sits on the drier side of Rennell and Bellona's year, which helps with sightseeing and transfers.
Driest monthsMay to November
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August6.4 hours average sun
August 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
August28°C average sea
August 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
August64 weather score
August 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.