Indonesia weather in December
In December, popular resorts in Indonesia (Surabaya, Semarang, Makassar, Batam, Jepara) average 28°C by day and 25°C at night, and the sea is about 29°C. On average 280 mm of rain falls during the month.
That is 1°C cooler than in November, and in January days average 28°C.
It is hot: ideal beach and swimming weather. The sea is warm and pleasant for swimming.
Warmest resorts in Indonesia in December
| Place | Day | Night | Sea | Rain |
|---|---|---|---|---|
| Kupang | 30°C | 25°C | 30°C | 262 mm |
| Situbondo | 30°C | 27°C | 29°C | 258 mm |
| Pasuruan | 30°C | 26°C | 29°C | 272 mm |
| Surabaya | 30°C | 26°C | 30°C | 303 mm |
| Sorong | 29°C | 26°C | 29°C | 191 mm |
| Semarang | 29°C | 24°C | 29°C | 275 mm |
| Kendari | 29°C | 25°C | 28°C | 210 mm |
| Tarakan | 29°C | 26°C | 29°C | 294 mm |
| Cilegon | 29°C | 25°C | 29°C | 240 mm |
| Mataram | 29°C | 25°C | 29°C | 285 mm |
| Cirebon | 29°C | 27°C | 29°C | 349 mm |
| Ternate | 29°C | 27°C | 29°C | 230 mm |
Indonesia weather in other months
See also
FAQ
Is it warm in Indonesia in December?
In December, popular resorts in Indonesia (Surabaya, Semarang, Makassar, Batam, Jepara) average 28°C by day and 25°C at night, and the sea is about 29°C. On average 280 mm of rain falls during the month. It is hot: ideal beach and swimming weather.
What is the sea temperature in Indonesia in December?
About 29°C on average. The warmest water is in Kupang (30°C).
Where is it warmest in Indonesia in December?
The warmest place is Kupang (30°C by day), followed by Situbondo (30°C) and Pasuruan (30°C).
Does it rain in Indonesia in December?
On average 280 mm of rain falls in the month. It is a fairly wet month, so pack a jacket.
Long-term averages from NASA POWER data (MERRA-2, 2001-2020 reanalysis, CC BY 4.0). Sea temperature is the average water surface temperature at the nearest grid point over the sea. This is climate, not a forecast for a specific day.