Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
December verdict
Bintan Island, Riau Islands, Indonesia in December
Weather score47Mixed
Mixed for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 4.1h per day, so this is not one of the brighter months. Rainfall averages 335mm, so showers are a real planning factor.
December weather
Monthly averages
Temp
30°C
Rain
335mm
Sun
4.1h
Sea
28°C
Weather score
47
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 335mm, so showers are a real planning factor.
Limited sun
Sunshine averages 4.1h per day, so this is not one of the brighter months.
Warm sea
Sea temperatures average 28°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
December30°C average high
December 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
December335mm average rain
December is one of Bintan Island's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December4.1 hours average sun
December is one of Bintan Island's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsFebruary to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December28°C average sea
December is below Bintan Island's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaApril to November
Sea temperatures are usually near 30°C in this stretch, so swimming comfort is at its strongest.
Weather score
December47 weather score
December is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to September
These months have the strongest weather score in the monthly averages.
