SeasonMapIndonesia in September
September is one of Indonesia's best months (rank 3 of 12): its 17 destinations average 77/100, led by Gili Trawangan at 91 — 30°C and 5 rainy days — while Jakarta is warmer at 36°C and scores 68.
#3 of 12 months for Indonesia · 17 destinations · updated September 2026 · climate normals from ERA5 reanalysis
Where in Indonesia in September
| # | Place | Type | Feels-like high | Rain | Comfort | At its best |
|---|---|---|---|---|---|---|
| 1 | Gili Trawangan | Island | 30°C | 20 mm · 5 days | 91 tier S | — |
| 2 | Lombok | Beach | 34°C | 24 mm · 6 days | 91 tier S | Yes |
| 3 | Jimbaran | Beach | 27°C | 47 mm · 15 days | 90 tier S | Yes |
| 4 | Canggu | Beach | 27°C | 54 mm · 11 days | 89 tier A | Yes |
| 5 | Denpasar | Island | 32°C | 63 mm · 14 days | 89 tier A | Yes |
| 6 | Nusa Penida | Island | 26°C | 63 mm · 14 days | 89 tier A | Yes |
| 7 | Labuan Bajo | Island | 35°C | 65 mm · 9 days | 88 tier A | — |
| 8 | Ubud | Trekking hub | 32°C | 63 mm · 14 days | 75 tier B | Yes |
| 9 | Yogyakarta | City | 34°C | 79 mm · 12 days | 75 tier B | Yes |
| 10 | Raja Ampat | Island | 28°C | 281 mm · 24 days | 73 tier B | Yes |
| 11 | Surabaya | City | 33°C | 21 mm · 5 days | 73 tier B | Yes |
| 12 | Bandung | City | 29°C | 141 mm · 16 days | 72 tier B | Yes |
| 13 | Makassar | City | 30°C | 115 mm · 13 days | 71 tier B | Yes |
| 14 | Jakarta | City | 36°C | 77 mm · 11 days | 68 tier C | — |
| 15 | Lake Toba | Trekking hub | 26°C | 282 mm · 28 days | 62 tier C | — |
| 16 | Manado | City | 31°C | 258 mm · 19 days | 57 tier D | — |
| 17 | Medan | City | 30°C | 298 mm · 27 days | 52 tier D | — |
Comfort is SeasonMap's 0–100 score; each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. "At its best" means September is one of that place's own top three months. Feels-like highs fold in humidity, wind and sun.
What's on in Indonesia in September
- Turtle nesting · Gili Trawangan · 1 May – 31 Oct (usually)
- Mola season · Nusa Penida · 1 Jul – 31 Oct (usually)
- Sekaten and Grebeg Maulud · Yogyakarta · 1 Aug – 15 Oct (usually)
- Festival Danau Toba · Lake Toba · 1 Jun – 30 Sep (usually)
Seasons in force
Peak crowds at 1 of Indonesia's 10 well-known places this month.