Travel advice

Indonesia General Information

Weather and water temperature

Average max. air temperatur in degrees C Average min. air temperatur in degrees C

Indonesia weather

Indonesia is a tropical country and the climate is fairly even all year round being roughly divided into two distinct seasons, ‘wet’ and ‘dry’. The east monsoon, from June to September brings dry weather while the west monsoon, from December to March, brings rain. The transitional period between these two seasons alternates between gorgeous sun-filled days and occasional thunderstorms. Even in the midst of the wet season temperatures range from 21-33°C (70-90°F), except at higher altitudes which can be much cooler. The heaviest rainfalls are usually recorded in December and January. Average humidity is generally between 75% and 100%.

Average max. water temperatur in degrees C Average min. water temperatur in degrees C

Indonesia water

Raja Ampat Trips – Average water temperatures for the Ceram Sea is 28°C (82°F) – most guests will find a 3mm shorty sufficient. For those who feel the cold easily it is advisable to bring your own 5mm suit. Banda Sea Discoveries – The Banda Sea has average water temperatures of 26°C (79°F) – most guests will find a 3mm shorty sufficient. For those who feel the cold easily it is advisable to bring your own 5mm suit. Komodo Trips – The Flores Sea with its usually clear blue waters and great visibility(20m+) has water temperatures of approx 26-28°C (79-82°F) – a 3-5 mm shorty is sufficient for most divers, however diving in the the Sumba Sea around Southern Komodo and Rinca Islands the water temperature drops to an average temperature of approx 24°C (75°F) and can go as low as 21°C (70°F) – a 5mm long suit is advised. Hood and booties are strongly recommended for these cooler waters.

Indonesia Travel   Monkey Sanctuary
Indonesia Travel   Kayaking
Indonesia Travel   Komodo Dragons
Indonesia Travel   Island View
Indonesia Travel   Rice Terraces
Indonesia Travel   Beautiful Sunsets

Money matters

The local currency is the Indonesian Rupiah (IDR).

The majority of established hotels, shops and restaurants accept major credit cards. However, smaller family-run places probably will not. There are several currency exchange counters at each international airport arrival terminal.

Time Zone

The time varies depending on your location in Indonesia; Sumatra, Java and Western Borneo- GMT + 7 (West) ; Sulawesi, Lesser Sunda Islands, Bali and Eastern Borneo - GMT + 8 (Central); Papua and Maluku - GMT + 9 (East)

Indonesia – Genreal Info

General and Diving Health

Health services in Indonesia are by no means up to western standards, although there are hospitals in all major towns. Follow normal precautions with food whilst travelling to prevent stomach upsets and be sure to drink bottled water only. On board Indo Siren you will find a fully stocked first aid kit, AED and medical grade O2. Basic supplies will be made available to you, if you require medication please ask your cruise director. For diving related emergencies there are recompression chambers in both Bali and Manado. Reaching either would require air evacuation from the Indo Siren thus diving specific insurance is a must on any liveaboard dive trip.


The spoken language in Indonesia is Bahasa Indonesia however, many Indonesians who work in the tourism industry speak English, but a few polite phrases can always help:- Good Morning = Salamat Pagi Thank you = Terima Kasih


Indonesia is a predominantly muslim country. Though more relaxed than say Egypt or the Maldives travellers should still be respectful of the culture by covering legs and shoulders when in towns or visiting religious buildings.

Getting there

Getting there



Indo Tours

Indo Tours



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