Swimming in Indonesia in august 2025 Sea temperature by city in august

Do you want to go to the beach in Indonesia in august 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in august in Indonesia by city and our opinion on the chances of enjoying pleasant sea conditions.

Sea temperature in Indonesia in august 2025

Here, find the average sea temperature in Indonesia in august in several coastal cities.

Maluku Islands in august

on average:

81°F

min: 79°F / max: 83°F

on average:

82°F

min: 80°F / max: 84°F

Halmahera

on average:

84°F

min: 82°F / max: 85°F

Haruku

on average:

81°F

min: 80°F / max: 83°F

Yamdena Island

on average:

82°F

min: 80°F / max: 84°F

Kai Islands

on average:

79°F

min: 76°F / max: 81°F

Java in august

on average:

84°F

min: 83°F / max: 85°F

on average:

82°F

min: 81°F / max: 84°F

on average:

83°F

min: 81°F / max: 86°F

Babadan

on average:

81°F

min: 77°F / max: 84°F

Karimun Java

on average:

83°F

min: 81°F / max: 85°F

Indonesian Papua in august

on average:

85°F

min: 83°F / max: 86°F

on average:

83°F

min: 82°F / max: 85°F

Batanta

on average:

83°F

min: 82°F / max: 85°F

Biak

on average:

86°F

min: 84°F / max: 88°F

Manokwari

on average:

86°F

min: 84°F / max: 88°F

West Timor in august

on average:

81°F

min: 79°F / max: 82°F

Sulawesi in august

on average:

82°F

min: 80°F / max: 84°F

on average:

84°F

min: 83°F / max: 85°F

on average:

82°F

min: 80°F / max: 84°F

Bangkir

on average:

85°F

min: 84°F / max: 87°F

Bitung

on average:

83°F

min: 82°F / max: 85°F

on average:

84°F

min: 83°F / max: 86°F

Lombok in august

on average:

81°F

min: 79°F / max: 82°F

on average:

81°F

min: 80°F / max: 83°F

on average:

80°F

min: 79°F / max: 82°F

on average:

81°F

min: 79°F / max: 82°F

Batu Putih

on average:

80°F

min: 79°F / max: 82°F

Blongas

on average:

81°F

min: 79°F / max: 82°F

Borneo (Kalimantan) in august

on average:

85°F

min: 82°F / max: 86°F

on average:

84°F

min: 82°F / max: 86°F

Bunyu

on average:

84°F

min: 82°F / max: 87°F

Handil

on average:

84°F

min: 81°F / max: 86°F

Sumbawa in august

on average:

81°F

min: 79°F / max: 82°F

on average:

81°F

min: 80°F / max: 83°F

on average:

81°F

min: 79°F / max: 83°F

Kore

on average:

81°F

min: 80°F / max: 83°F

Bali in august

on average:

81°F

min: 80°F / max: 83°F

on average:

80°F

min: 78°F / max: 82°F

on average:

80°F

min: 78°F / max: 82°F

on average:

80°F

min: 78°F / max: 82°F

on average:

81°F

min: 79°F / max: 82°F

on average:

81°F

min: 79°F / max: 83°F

Sumatra in august

on average:

85°F

min: 84°F / max: 86°F

on average:

84°F

min: 82°F / max: 86°F

on average:

84°F

min: 82°F / max: 86°F

on average:

86°F

min: 85°F / max: 86°F

on average:

86°F

min: 84°F / max: 88°F

on average:

86°F

min: 84°F / max: 87°F

Lesser Sunda Islands in august

on average:

81°F

min: 80°F / max: 83°F

on average:

81°F

min: 79°F / max: 82°F

on average:

80°F

min: 78°F / max: 81°F

on average:

80°F

min: 80°F / max: 82°F

Where should you go swimming in Indonesia in the month of august?

Swimming in Indonesia in august is ideal (in the best case scenario)

In august in Indonesia swimming conditions vary by city. Details below:

In august in Ambon, Jakarta, Java, Jayapura, Kupang, Makassar, Mataram, Pontianak (Borneo), Sumbawa Besar, Amed, Bali, Bima, Gili Air, Raja Ampat Islands, Lombok, Manado, Sumatra, Surabaya, Taliwang, Ternate, Bali Barat National Park, Balikpapan, Banda Aceh, Bandar Lampung, Bengkulu, Dumai, Flores, Gilimanuk, Gunungsitoli (Pulau Nias), Kendari, Komodo island, Kuta, Lovina Beach, Maluku Islands, Negara, Nusa Dua, Nusa Lembongan, Nusa Penida, Padang City, Padangbai, Selong Blanak, Semarang, Sumba (Waingapu), Sumbawa, Tabanan, Tanglad, Tejakula, Awang, Babadan, Balian Beach (Tabanan), Bangkir, Batam, Batanta, Batu Putih, Belimbingsari, Biak, Bitung, Blongas, Bubunan, Way Kambas National Park, Bunyu, Calang, Canggu, Desa Anjar, Ekas Beach, Gerokgak, Gili Lawang, Gili Meno, Gili Sulat, Gili Trawangan, Halmahera, Handil, Haruku, Bunaken Island, Rote Island, Yamdena Island, Karimun Java, Jimbaran, Karangasem, Kolaka, Kore, Kota Masohi, Kubu, Kuta (Lombok), Larike, Legian, Lembar, Lembeh, Liang, Lolak, Luhu (Huamual Belakang), Luwuk, Makian, Mangsit, Manokwari and Mawun, swimming conditions are perfect! With water reaching a maximum of 83°F and an average of 81°F, going in the water (and staying there!) feels great.

As for Kai Islands, Kai Besar (Great Kai Island), Kai Dulah and Kai Kecil, swimming is pleasant in august. The sea water is 79°F on average (min: 76°F/max: 81°F) so you can easily spend time in the water.

Where to go swimming in Indonesia in august: the map of sea temperatures

ideal swimming pleasant swimming cool swimming cold swimming freezing swimming

Water temperature and seasonal norms in august

Ambon

August
Average sea temperature 81°F
Minimum sea temperature 79°F
Maximum sea temperature 83°F
Average outside temperature 81°F
Maximum outside temperature 85°F
Minimum outside temperature 77°F
Precipitation 8.2in
Number of days of precipitation 9 jour(s)
(30%)
Cloud cover 58%
Our opinion ideal swimming

More information on swimming in Ambon in august

Jakarta

August
Average sea temperature 84°F
Minimum sea temperature 83°F
Maximum sea temperature 85°F
Average outside temperature 86°F
Maximum outside temperature 90°F
Minimum outside temperature 81°F
Precipitation 4in
Number of days of precipitation 6 jour(s)
(20%)
Cloud cover 22%
Our opinion ideal swimming

More information on swimming in Jakarta in august

Java

August
Average sea temperature 84°F
Minimum sea temperature 83°F
Maximum sea temperature 85°F
Average outside temperature 86°F
Maximum outside temperature 90°F
Minimum outside temperature 81°F
Precipitation 4in
Number of days of precipitation 6 jour(s)
(20%)
Cloud cover 22%
Our opinion ideal swimming

More information on swimming on the island of Java in august

Jayapura

August
Average sea temperature 85°F
Minimum sea temperature 83°F
Maximum sea temperature 86°F
Average outside temperature 79°F
Maximum outside temperature 85°F
Minimum outside temperature 76°F
Precipitation 17.5in
Number of days of precipitation 18 jour(s)
(60%)
Cloud cover 42%
Our opinion ideal swimming

More information on swimming in Jayapura in august

Kupang

August
Average sea temperature 81°F
Minimum sea temperature 79°F
Maximum sea temperature 82°F
Average outside temperature 81°F
Maximum outside temperature 83°F
Minimum outside temperature 79°F
Precipitation 0.2in
Number of days of precipitation 0 jour(s)
(1%)
Cloud cover 9%
Our opinion ideal swimming

More information on swimming in Kupang in august

List of coastal cities in Indonesia

Ambon in augustideal swimming
Jakarta in augustideal swimming
Java in augustideal swimming
Jayapura in augustideal swimming
Kupang in augustideal swimming
Makassar in augustideal swimming
Mataram in augustideal swimming
Pontianak (Borneo) in augustideal swimming
Sumbawa Besar in augustideal swimming
Amed in augustideal swimming
Bali in augustideal swimming
Bima in augustideal swimming
Gili Air in augustideal swimming
Raja Ampat Islands in augustideal swimming
Lombok in augustideal swimming
Manado in augustideal swimming
Sumatra in augustideal swimming
Surabaya in augustideal swimming
Taliwang in augustideal swimming
Ternate in augustideal swimming
Bali Barat National Park in augustideal swimming
Balikpapan in augustideal swimming
Banda Aceh in augustideal swimming
Bandar Lampung in augustideal swimming
Bengkulu in augustideal swimming
Dumai in augustideal swimming
Flores in augustideal swimming
Gilimanuk in augustideal swimming
Gunungsitoli (Pulau Nias) in augustideal swimming
Kendari in augustideal swimming
Komodo island in augustideal swimming
Kuta in augustideal swimming
Lovina Beach in augustideal swimming
Maluku Islands in augustideal swimming
Negara in augustideal swimming
Nusa Dua in augustideal swimming
Nusa Lembongan in augustideal swimming
Nusa Penida in augustideal swimming
Padang City in augustideal swimming
Padangbai in augustideal swimming
Selong Blanak in augustideal swimming
Semarang in augustideal swimming
Sumba (Waingapu) in augustideal swimming
Sumbawa in augustideal swimming
Tabanan in augustideal swimming
Tanglad in augustideal swimming
Tejakula in augustideal swimming
Awang in augustideal swimming
Babadan in augustideal swimming
Balian Beach (Tabanan) in augustideal swimming
Bangkir in augustideal swimming
Batam in augustideal swimming
Batanta in augustideal swimming
Batu Putih in augustideal swimming
Belimbingsari in augustideal swimming
Biak in augustideal swimming
Bitung in augustideal swimming
Blongas in augustideal swimming
Bubunan in augustideal swimming
Way Kambas National Park in augustideal swimming
Bunyu in augustideal swimming
Calang in augustideal swimming
Canggu in augustideal swimming
Desa Anjar in augustideal swimming
Ekas Beach in augustideal swimming
Gerokgak in augustideal swimming
Gili Lawang in augustideal swimming
Gili Meno in augustideal swimming
Gili Sulat in augustideal swimming
Gili Trawangan in augustideal swimming
Halmahera in augustideal swimming
Handil in augustideal swimming
Haruku in augustideal swimming
Bunaken Island in augustideal swimming
Rote Island in augustideal swimming
Yamdena Island in augustideal swimming
Kai Islands in augustpleasant swimming
Karimun Java in augustideal swimming
Jimbaran in augustideal swimming
Karangasem in augustideal swimming
Kai Besar (Great Kai Island) in augustpleasant swimming
Kai Dulah in augustpleasant swimming
Kai Kecil in augustpleasant swimming
Kolaka in augustideal swimming
Kore in augustideal swimming
Kota Masohi in augustideal swimming
Kubu in augustideal swimming
Kuta (Lombok) in augustideal swimming
Larike in augustideal swimming
Legian in augustideal swimming
Lembar in augustideal swimming
Lembeh in augustideal swimming
Liang in augustideal swimming
Lolak in augustideal swimming
Luhu (Huamual Belakang) in augustideal swimming
Luwuk in augustideal swimming
Makian in augustideal swimming
Mangsit in augustideal swimming
Manokwari in augustideal swimming
Mawun in augustideal swimming
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