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Island in Riau Islands, Indonesia

Batam weather by month and the best time to visit

Updated October 2026Sources
May–SepBest time to visit

When to go to Batam

Jun–Sep is driest; Nov–Feb is the rainy season with heavy downpours. Haze from Sumatra fires can appear in Aug–Oct; weekends are busy with Singapore visitors.

Batam weather by month

Average daily high, rainfall and conditions.

PleasantHotRainyCool or coldBest months
25°30°35°JFMAMJJASOND
Average highAverage lowRainfall

Monthly averages

MonthHighLowRainHumidityConditions
January28°C82°F25°C77°F236 mm85%Rainy
February28°C83°F25°C77°F108 mm83%Pleasant
March29°C84°F26°C79°F177 mm81%Rainy
April30°C85°F27°C81°F203 mm79%Rainy
May30°C85°F28°C82°F202 mm80%Rainy
June29°C84°F27°C81°F164 mm80%Rainy
July29°C84°F27°C80°F168 mm81%Rainy
August29°C84°F27°C80°F166 mm81%Rainy
September29°C84°F27°C80°F165 mm80%Rainy
October29°C84°F27°C80°F206 mm79%Rainy
November28°C83°F26°C80°F294 mm82%Rainy
December28°C82°F26°C78°F302 mm85%Very wet

Best months across Indonesia

PlaceBest monthsWarmest month
BaliMay–SepNov (31°C)
UbudMay–SepNov (30°C)
CangguMay–SepNov (31°C)
JakartaJun–SepOct (30°C)
SeminyakMay–SepNov (31°C)
UluwatuMay–SepApr (28°C)
YogyakartaMay–SepOct (30°C)
Gili IslandsMay–OctOct (32°C)
Nusa PenidaMay–SepOct (30°C)
KutaMay–SepNov (31°C)
LombokMay–SepOct (32°C)
Labuan BajoApr–OctOct (32°C)
Nusa DuaMay–SepApr (29°C)
SanurMay–SepNov (31°C)
Raja AmpatOct–AprNov (29°C)
Mount BromoMay–SepOct (27°C)
BandungMay–SepOct (28°C)
Nusa LembonganMay–OctOct (30°C)
Lake TobaMay–SepApr (26°C)
Kuta LombokMay–OctNov (30°C)
AmedMay–OctOct (30°C)
BatamMay–SepMay (30°C)
BintanMay–SepMay (29°C)
MalangMay–SepOct (32°C)
Bukit LawangMar–AugApr (30°C)
MedanFeb–Mar, Jun–AugMay (30°C)
SurabayaMay–OctOct (36°C)
ManadoMay–OctOct (30°C)
Tana TorajaJun–SepOct (26°C)
JimbaranMay–SepApr (28°C)

Quick answers

What is the best month to visit Batam?

May–Sep. Jun–Sep is driest; Nov–Feb is the rainy season with heavy downpours. Haze from Sumatra fires can appear in Aug–Oct; weekends are busy with Singapore visitors.

When is the rainy season in Batam?

Rain peaks in December with about 302 mm. Months with 150 mm or more: Mar–Jan.

What is the hottest month in Batam?

May, with average highs of 30°C (85°F).

How cold does Batam get?

The coolest nights are in February, averaging 25°C (77°F).

More about Batam

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Sources

Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.