Batam weather in December
Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Fair
Best time to visit: February
What is the weather like in Batam in December?
In December, Batam is hot: daytime highs average 27 °C, and even at night it stays warm at around 25 °C. The sea averages 28.4 °C – lovely and warm for swimming. Expect around 4 hours of sunshine a day. It is the rainy season: rain falls on about 27 days, totalling 319 mm. The air is often humid and muggy. All in all, December is a so-so month for a holiday in Batam.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 50 | 52 | 57 |
| Day | 28° | 27° | 27° |
| Night | 25° | 25° | 25° |
| Sea | 29° | 28° | 28° |
| Sun | 4 h | 4 h | 6 h |
| Rain days | 28 | 27 | 21 |
More details for December
- Daylight
- 12 h 3 min05:57 – 18:01
- UV index
- 12 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 91 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+7Asia/Jakarta
How the score comes together
- Temperatureweight 50 %95 %
- Sunshineweight 20 %22 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Batam in December: quick answers
Is Batam hot in December?
Yes. In December, Batam is hot: daytime highs average 27 °C and nights stay around 25 °C.
Can you swim in Batam in December?
Yes. In December the sea averages 28.4 °C – lovely and warm for swimming.
Does it rain much in Batam in December?
It rains often – on about 27 days, adding up to 319 mm.
Batam month by month
The whole year in BatamAll destinations: IndonesiaWhere to go in DecemberSea temperature in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences