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Warmest sea in Indonesia in April

594 coastal locations in Indonesia ranked by their typical April sea temperature. Region-wide average in April: 29.5°C. The top of the list is where to find the warmest swimming this month.

Warmest in April

Sukadana

30.8°C April mean in Indonesia

Regional April average

29.5°C

across all 594 coastal locations in Indonesia

Vs annual mean

+0.5°C

above the year-round regional average

What the Indonesia sea feels like in April

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

Indonesia monthly average 28.2°C to 29.5°C
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  • Warmest month April 29.5°C
  • Coldest month August 28.2°C
  • Annual mean 28.9°C
  • Months above 20°C 12 of 12

Where April fits in the year

April sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve Indonesia month rankings:

Indonesia sea temperature map (live)

The map shows today's latest reading at every Indonesia location. The list below is based on the typical April mean, useful for trip planning weeks or months ahead.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 warmest Indonesia locations in April

Sorted by the typical April mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location April mean
1 Sukadana Kalimantan Barat 30.8°C
2 Barus Sumatra Utara 30.5°C
3 Singkel Aceh 30.5°C
4 Tapaktuan Aceh 30.5°C
5 Sungai Pawan (Tanjung Bawang) Kalimantan Barat 30.4°C
6 Pulau Raya Aceh 30.4°C
7 Sungai Kaibus West Papua 30.4°C
8 Moutong Sulawesi Tengah 30.4°C
9 Tobelombangi Sulawesi Tengah 30.4°C
10 Calang Aceh 30.4°C
11 Poso Sulawesi Tengah 30.4°C
12 Sungai Karabra West Papua 30.4°C
13 Teluk Togian Sulawesi Tengah 30.4°C
14 Donggala Sulawesi Tengah 30.4°C
15 Natal Sumatera Utara 30.3°C
16 Pulau Galla Besar Sulawesi Tenggara 30.3°C
17 Karang Kleta Jawa Timur 30.3°C
18 Kolaka Sulawesi Tenggara 30.3°C
19 Palu 30.3°C
20 Pulau Rusa East Nusa Tenggara 30.3°C
21 Karang Koko Jawa Timur 30.3°C
22 Pulau Kobalin Papua Barat 30.3°C
23 Sigli Aceh 30.3°C
24 Teluk Sinabang Aceh 30.3°C
25 Baubau Sulawesi Tenggara 30.3°C
Show 25 more ▸
26 Sulawesi 30.3°C
27 Gunungsitoli Sumatera Utara 30.3°C
28 Kebonsari 30.3°C
29 Pasuruan 30.3°C
30 Teluk Dalam Sumatera Utara 30.3°C
31 Meulaboh 30.2°C
32 Pesisir 30.2°C
33 Simanari Sumatra Utara 30.2°C
34 Tampunawu Sulawesi Tenggara 30.2°C
35 Lancang 30.2°C
36 Lhokseumawe 30.2°C
37 Padang-A Sumatera Barat 30.2°C
38 Padang-B West Sumatra 30.2°C
39 Teluk Bayur (Emma Haven) Sumatera Barat 30.2°C
40 Blimbing 30.2°C
41 Lasusua 30.2°C
42 Medan 30.2°C
43 Muara Kassei Kalimantan Timur 30.2°C
44 Percut 30.2°C
45 Probolinggo 30.2°C
46 Pulau Jemur Riau 30.2°C
47 Sukolilo 30.2°C
48 Sumbersari 30.2°C
49 Surabaya 30.2°C
50 Tanjung Birai East Kalimantan 30.2°C

Coldest 10 in Indonesia in April

Same data the other way. Helpful if you want to know which Indonesia coasts to avoid for swimming in April.

# Location April mean
1 Batawa 3.6°C
2 Lantera 6.5°C
3 Tembol 6.5°C
4 Pandan 8.8°C
5 Taman 9.1°C
6 Bator 11.8°C
7 Fontein 12.4°C
8 Karara 15.3°C
9 Meringkik 28.9°C
10 Lobuk 29.0°C

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