Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
Batam, Riau Islands, Indonesia Average Monthly Weather
Weather score53Mixed annual avg
Best months: February, August, January
Across the year, average daytime temperatures are around 31°C, sunshine averages 5.6h per day, and rainfall totals about 2348mm.
Annual weather
Annual averages
Temp
31°C
Rain
2348mm
Annual total
Sun
5.6h
Weather score
53
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 163mm, so some wet days are possible.
Some sun
Sunshine averages 5.9h per day, enough for a balanced month.
Map
Weather map
Compare Batam, Riau Islands, Indonesia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August31°C average high
August is close to Batam's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
August163mm average rain
August is one of the drier months, but average rainfall is still high enough to keep backup plans useful.
Driest monthsJanuary to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August5.9 hours average sun
August is brighter than Batam's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsFebruary to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
August56 weather score
August scores above Batam's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJanuary to September
These months have the strongest weather score in the monthly averages.
