The Climate and Best Time to Go
Straddling the equator, Indonesia tends to have a very even climate, with average temperatures in the coastal regions being 28°C. High rainfall and tropical heat lend a high humidity and mean that most of the country is covered in tropical rainforest - an area second largest only to Brazil. The wet season runs from October to April, with rain falling in short and sudden downpours interrupted with sunshine. The dry season is from May to September.
However, the country is spread over such a vast area that excellent resort diving is to be found in one Indonesian destination or another all year round. Bali and Lembeh both have great conditions all year round; Bunaken has a higher possibility of rains and high seas from November to February, Raja Ampat similarly in July and August. Review our Indonesian dive site descriptions for more details on the seasons for each location.
How to Get There
Most international visitors arrive in Indonesia for diving trips through Jakarta, Denpasar (Bali), or Manado (Sulawesi). Jakarta offers excellent connections across Asia and Europe, while Bali provides direct flights from major hubs like Singapore, Kuala Lumpur, Tokyo, and Hong Kong, along with leisure routes from Hawaii, Guam, and Thailand. Singapore also services Manado directly.
For domestic connections, Indonesia has several reliable airlines including Lion Air/Wings Air, Garuda, Air Asia, and Sriwijaya Air operating between these gateway cities and dive destinations.
Before you dive in, protect your adventure! We recommend World Nomads' specialised coverage for scuba diving and trip protection. Their policies are designed by and for active travellers:

Since September 2023, all international arrivals must complete an electronic customs declaration. Submit online via https://ecd.beacukai.go.id at least 48 hours pre-arrival, OR complete upon landing using the mobile QR codes in the arrivals area, OR use one of the designated airport computers. Early submission is advised to avoid immigration delays.
Choose Your Own Accommodation
For travellers looking to book accommodations before or after their Indonesian resort diving vacation, our trusted partner HotelsCombined.com offers exceptional value across their extensive selection of properties. As our affiliated reservation specialists, they provide access to the best available rates at resorts throughout the archipelago, all backed by their 'Low Price Guarantee' - ensuring you always receive maximum value for your accommodation budget:

Whether you need a convenient pre-trip hotel near the airport or a luxurious beachfront resort to unwind after your Indonesian diving adventures, their platform makes it easy to find and book the perfect stay at the most competitive rates available.