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Warmest sea temperature in Indonesia in September

Where the sea is warmest across Indonesia during September, ranked by long-term monthly average water temperature. Gili Trawangan (West Nusa Tenggara, Indonesia) tops the list at around 28°C. Open any spot for today's live water temperature and a 7-day swim forecast.

  1. 1
    Gili Trawangan
    West Nusa Tenggara · Indonesia · Bali Sea
    Warm — comfortable swimming
    28°C
    September average
  2. 2
    Kuta Lombok
    West Nusa Tenggara · Indonesia · Indian Ocean
    Warm — comfortable swimming
    28°C
    September average
  3. 3
    Pink Beach Komodo
    East Nusa Tenggara · Indonesia · Flores Sea
    Warm — comfortable swimming
    28°C
    September average
  4. 4
    Selong Belanak
    Lombok · Indonesia · Indian Ocean
    Warm — comfortable swimming
    28°C
    September average
  5. 5
    Tanjung Aan
    Lombok · Indonesia · Indian Ocean
    Warm — comfortable swimming
    28°C
    September average
  6. 6
    Gili Trawangan Beach
    West Nusa Tenggara · Indonesia · Bali Sea
    Warm — comfortable swimming
    28°C
    September average
  7. 7
    Gili Air Beach
    Lombok · Indonesia · Bali Sea
    Warm — comfortable swimming
    28°C
    September average
  8. 8
    Mawun Beach
    Lombok · Indonesia · Indian Ocean
    Warm — comfortable swimming
    28°C
    September average
  9. 9
    Dream Beach Lembongan
    Nusa Islands · Indonesia · Indian Ocean
    Warm — comfortable swimming
    28°C
    September average
  10. 10
    Kelingking Beach
    Nusa Islands · Indonesia · Indian Ocean
    Warm — comfortable swimming
    28°C
    September average
  11. 11
    Gili Meno Beach
    Gili Islands · Indonesia · Bali Sea
    Warm — comfortable swimming
    28°C
    September average
  12. 12
    Sorake Beach Nias
    Sumatra · Indonesia · Indian Ocean
    Warm — comfortable swimming
    28°C
    September average
  13. 13
    Iboih Beach
    Sumatra · Indonesia · Andaman Sea
    Warm — comfortable swimming
    28°C
    September average
  14. 14
    Pink Beach Komodo
    Komodo · Indonesia · Banda Sea
    Warm — comfortable swimming
    28°C
    September average
  15. 15
    Piaynemo Beach
    Raja Ampat · Indonesia · Halmahera Sea
    Warm — comfortable swimming
    28°C
    September average
  16. 16
    Bunaken Island Beach
    Sulawesi · Indonesia · Sulawesi Sea
    Warm — comfortable swimming
    28°C
    September average
  17. 17
    Kuta Beach
    Bali · Indonesia · Indian Ocean
    Warm — comfortable swimming
    27°C
    September average
  18. 18
    Seminyak Beach
    Bali · Indonesia · Indian Ocean
    Warm — comfortable swimming
    27°C
    September average
  19. 19
    Canggu Beach
    Bali · Indonesia · Indian Ocean
    Warm — comfortable swimming
    27°C
    September average
  20. 20
    Nusa Dua Beach
    Bali · Indonesia · Indian Ocean
    Warm — comfortable swimming
    27°C
    September average
  21. 21
    Sanur Beach
    Bali · Indonesia · Indian Ocean
    Warm — comfortable swimming
    27°C
    September average
  22. 22
    Jimbaran Bay
    Bali · Indonesia · Indian Ocean
    Warm — comfortable swimming
    27°C
    September average
  23. 23
    Padang Padang
    Bali · Indonesia · Indian Ocean
    Warm — comfortable swimming
    27°C
    September average
  24. 24
    Padang Padang Beach
    Bali · Indonesia · Indian Ocean
    Warm — comfortable swimming
    27°C
    September average
  25. 25
    Pandawa Beach
    Bali · Indonesia · Indian Ocean
    Warm — comfortable swimming
    27°C
    September average

Warmest sea in September elsewhere

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Indonesia in September — frequently asked questions

Where is the sea warmest in Indonesia in September?
Gili Trawangan in Indonesia has the warmest sea in Indonesia in September, averaging about 28.0 °C. Kuta Lombok (28.0 °C) and Pink Beach Komodo follow close behind.
How many beaches in Indonesia are warm enough to swim in September?
25 of the top 25 ranked beaches in Indonesia average 22 °C or more in September, which most swimmers find comfortable without a wetsuit.
How are these September sea temperatures calculated?
Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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