Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
May verdict
Mixed for holiday weather
Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 6.1h per day, enough for a balanced month. Rainfall averages 183mm, so showers are a real planning factor.
Monthly averages
Temp
31°C
Rain
183mm
Sun
6.1h
Weather score
53
Mixed
Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Wet
Rainfall averages 183mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.1h per day, enough for a balanced month.
Map
Compare Batam, Riau Islands, Indonesia with nearby places by weather score, rain, sun, temperature, and swim conditions.
May31°C average high
May 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.
May183mm average rain
May sits on the drier side of Batam'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.
May6.1 hours average sun
May is one of Batam's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsFebruary to August
This stretch has the strongest sunshine in the monthly averages.
May53 weather score
May sits close to Batam'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.