Weather in Bandung

Bandung is in Indonesia at 6.9°S. The 2001–2020 NASA POWER daily record describes a monsoon climate with a sharp wet-dry split. October is the warmest month (average 22.7°C, high 27.2°C) and July is the coolest (average 21.1°C, low 16.9°C).

Rain is the monsoon runs from October to June, inside an annual total of 2605 mm. The wettest month is February at 365 mm; the driest is August at 44 mm. On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are August, September, and October.

Best months to visit Bandung

The three months with the highest comfort score are August, September, and October: August (21.1°C average, 44 mm, 86% humidity); September (21.9°C average, 89 mm, 84% humidity); October (22.7°C average, 181 mm, 84% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you want the monsoon itself — fewer crowds, greener landscape, heavier rain — aim at October–June instead of the score.

Hot and cool months in Bandung

Monthly average highs run from 25.2°C in July to 27.2°C in October. Nights follow the same curve: 16.9°C in July and 18.2°C in October.

Mean high across all twelve months is 25.7°C and mean low is 18.3°C. These are 20-year grid averages, so a city station can read a few degrees warmer or cooler.

When Bandung gets wet

The monsoon in Bandung starts in October and ends in June (October, November, December, January, February, March, April, May, and June). February is the core of it at 365 mm. August is the other extreme, with 44 mm.

A rainy day here is a day with at least 1 mm in the NASA POWER series. February averages 27 such days; August averages 8.

The calendar in Bandung

February is the wettest month — 365 mm and 27 rainy days, with 91% humidity. April: 25.5°C high, 19.2°C low, 285 mm rain, 90% humidity. In May, Bandung averages 25.7°C by day and 18.9°C at night, with 178 mm of rain. By June the monsoon is ending. Bandung still sees about 103 mm, but the next month is usually leaner.

The year bottoms out in July. Plan for 16.9°C at night and 25.2°C in the afternoon. August is the driest month, averaging only 44 mm across 8 rainy days. Highs sit near 25.8°C. October is when the monsoon typically starts in Bandung: highs near 27.2°C, and rainfall jumps to 181 mm (20 rainy days). November: 26.4°C high, 19.1°C low, 294 mm rain, 87% humidity.

How Bandung compares inside Indonesia

Depok is about 105 km away: Bandung is 3.4°C cooler than Depok in its hottest month and 333 mm wetter over the year than Depok. Depok’s wettest month is February (373 mm) versus February here.

Jakarta is about 115 km away: Bandung is 5.6°C cooler than Jakarta in its hottest month and 402 mm wetter over the year than Jakarta. Jakarta’s wettest month is February (387 mm) versus February here.

Semarang is about 311 km away: Bandung is 6.5°C cooler than Semarang in its hottest month and 548 mm wetter over the year than Semarang. Semarang’s wettest month is January (354 mm) versus February here.