Indonesia in August: where is it warmest?
In August, Surabaya is the warmest place with 32 °C by day, Denpasar the coolest with 26 °C. 11 of 16 destinations have good holiday weather.
All destinations in August, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Surabaya | 70 | 32° | 28° | 9 h | 2 |
| Jakarta | 55 | 31° | – | 6 h | 9 |
| Makassar | 76 | 30° | 28° | 8 h | 6 |
| Banda Aceh | 40 | 30° | 30° | 5 h | 17 |
| Medan | 33 | 30° | – | 4 h | 27 |
| Senggigi, Lombok | 98 | 29° | 28° | 8 h | 2 |
| Yogyakarta | 81 | 29° | – | 8 h | 3 |
| Nusantara | 69 | 29° | 29° | 6 h | 22 |
| Jayapura | 47 | 29° | 29° | 6 h | 25 |
| Komodo Island | 100 | 28° | 27° | 9 h | 1 |
| Labuan Bajo | 95 | 28° | 28° | 9 h | 2 |
| Batam | 53 | 28° | 29° | 6 h | 25 |
| Kuta, Bali | 93 | 27° | 26° | 8 h | 7 |
| Ubud, Bali | 90 | 27° | – | 8 h | 7 |
| Bandung | 67 | 27° | – | 6 h | 14 |
| Denpasar | 91 | 26° | 26° | 8 h | 7 |
Indonesia in August: quick answers
Indonesia in August: where is it warmest?
The warmest places in August are Surabaya (32 °C), Jakarta (31 °C) and Makassar (30 °C).
Indonesia in August: where is the sea warmest?
The sea is warmest at Banda Aceh (30 °C), Nusantara (29 °C) and Jayapura (29 °C).
Indonesia in August: where is the weather best?
The best holiday weather in August – warm, sunny and dry – is in Komodo Island, Senggigi, Lombok and Labuan Bajo.
Indonesia month by month
Indonesia: weather & best time to visit
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