Indonesia weather in August
In August, popular resorts in Indonesia (Surabaya, Semarang, Makassar, Batam, Jepara) average 29°C by day and 24°C at night, and the sea is about 28°C. On average 84 mm of rain falls during the month.
That is the same as in July, and in September days average 29°C.
It is hot: ideal beach and swimming weather. The sea is warm and pleasant for swimming.
Warmest resorts in Indonesia in August
| Place | Day | Night | Sea | Rain |
|---|---|---|---|---|
| Semarang | 33°C | 22°C | 29°C | 31 mm |
| Surabaya | 32°C | 24°C | 29°C | 11 mm |
| Pasuruan | 31°C | 24°C | 28°C | 10 mm |
| Kupang | 31°C | 21°C | 27°C | 4 mm |
| Makassar | 30°C | 24°C | 28°C | 12 mm |
| Situbondo | 30°C | 25°C | 28°C | 13 mm |
| Jepara | 30°C | 25°C | 29°C | 26 mm |
| Cilegon | 30°C | 24°C | 29°C | 54 mm |
| Labuan Bajo | 29°C | 22°C | 26°C | 24 mm |
| Pekalongan | 29°C | 20°C | 29°C | 29 mm |
| Tegal | 29°C | 20°C | 29°C | 29 mm |
| Tarakan | 29°C | 26°C | 29°C | 213 mm |
Indonesia weather in other months
See also
FAQ
Is it warm in Indonesia in August?
In August, popular resorts in Indonesia (Surabaya, Semarang, Makassar, Batam, Jepara) average 29°C by day and 24°C at night, and the sea is about 28°C. On average 84 mm of rain falls during the month. It is hot: ideal beach and swimming weather.
What is the sea temperature in Indonesia in August?
About 28°C on average. The warmest water is in Semarang (29°C).
Where is it warmest in Indonesia in August?
The warmest place is Semarang (33°C by day), followed by Surabaya (32°C) and Pasuruan (31°C).
Does it rain in Indonesia in August?
On average 84 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.