Weather in Bandung in December

Shoulder season. December is shoulder season in Bandung — cheaper, quieter, and a genuine gamble. You should expect rain on 28 days of the month, which is more days wet than dry.

December ranks 5 of 12 in Bandung: past the worst of the year but short of August, which is the month to book if the dates are open.

Rain on 28 of the month's 31 days, 12 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Natural fibres and a second shirt for the day. At 89% nothing dries, including you.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average December reaches 30 °C. Across the twenty years measured, the hottest December day reached 30.8 °C and the coldest night fell to 15.4 °C, and the wettest single day dropped 68 mm — roughly 21% of the month's rain in one day.

December is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest December on record still delivered 474 mm against 65 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 317 mm average is a reasonable planning figure, not a promise.

Wind is light at 6.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity at 89% is the real story though — it is the number that decides how the day feels, not the 26.8 °C.

How December sits in the year

Temperatures hold steady either side: 27.7 °C in November, 26.8 here, 26.3 in January. Nothing about the timing within the month matters much.

Daylight in December

Bandung sits close enough to the equator that daylight barely moves all year — 12.5 hours in December, against a range of just 0.8 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 10.8 °C between the year's warmest afternoons and coldest nights. At 714 m the air is thin enough to matter — sun that burns faster than the temperature suggests, and nights that cool off quickly.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

December in Bandung versus nearby

If Bandung is one option among several, the nearby comparison is worth making. Jakarta is close enough to be a coin toss — 2.6 °C warmer, 1 day more rain. Bandar Lampung is close enough to be a coin toss — 2.7 °C warmer, 3 days less rain.

So: December is a compromise. August is 22 points better and is what Bandung is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Bandung

See all twelve months in Bandung, or where else to go in December.