Warm
Average highs sit around 32°C, giving warm days by monthly-average standards.
September verdict
Bintan Island, Riau Islands, Indonesia in September
Weather score57Good
Good for holiday weather
Average highs sit around 32°C, giving warm days by monthly-average standards. Sunshine averages 5.3h per day, enough for a balanced month. Rainfall averages 214mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
32°C
Rain
214mm
Sun
5.3h
Sea
29°C
Weather score
57
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 214mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.3h 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 Bintan Island, Riau Islands, Indonesia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September32°C average high
September is close to Bintan Island's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
September214mm average rain
September sits on the drier side of Bintan Island's year, which helps with sightseeing and transfers.
Driest monthsJanuary to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September5.3 hours average sun
September sits close to Bintan Island's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsFebruary to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September29°C average sea
September is close to Bintan Island's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaApril to November
Sea temperatures are usually near 30°C in this stretch, so swimming comfort is at its strongest.
Weather score
September57 weather score
September sits close to Bintan Island's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJanuary to September
These months have the strongest weather score in the monthly averages.
