Derawan Islands in May
Great time to visit
May is simply outstanding. Calm seas, clear skies, and incredible diving conditions make this a top choice for serious divers.
Weather
May delivers consistently beautiful weather with minimal rainfall and calm seas. The southeast trade winds bring pleasant breezes that keep humidity tolerable. Underwater visibility peaks at 25-30 meters on good days.
32°C high25°C low6 rain days
Crowds & Cost
moderate crowds
~$125/day average
Events & Festivals
- •Vesak Day (Buddha's Birthday)
- •Labor Day (May 1st)
May Tips
- •Perfect month for underwater photography with excellent visibility
- •Book manta ray trips to nearby Sangalaki
- •Mosquitoes are active at dusk - bring strong repellent
All Months
April through September offers the calmest seas and clearest visibility for diving. Visibility regularly exceeds 30 meters during these months, and boat rides between islands are comfortable. This is peak season, so book accommodations well in advance.
Manta ray sightings peak from May to August when plankton blooms attract them to cleaning stations. Whale sharks are present year-round but seem more active during the calmer months.
Avoid October through March when northeast monsoons bring rough seas and frequent rain. Many dive operators close during January and February due to dangerous conditions. Even if you can get there, you'll spend most days stuck indoors.
The shoulder months of April and September offer the best value with good weather but fewer crowds. Water temperature stays around 28°C year-round, so a 3mm wetsuit is plenty.
Derawan Islands Scores
Solo
6/10
Couples
7/10
Families
4/10
Adventure
9/10
Budget
5/10
Luxury
3/10
BUILD YOUR DERAWAN ISLANDS PLAN
Insider picks, smart timing, and a plan ready when you are.