When To Go · Destination Guide
Bunaken walls by day, volcano lakes and wildlife treks by dawn
Updated Dec 13, 2025 • 15 sources
When to go
Bunaken is an allyear reef destination, but May to October is the cleanest planning window for calmer surface conditions and easier visibility on the walls.
Best overall window
The dryseason stretch usually gives the easiest wall diving and calmer surface days.
Outside that window
Surface chop can add a little more texture on exposed entries.
Start with the overall answer, then switch only when scuba, freedive, snorkel, or topside timing changes the trip in a meaningful way.
The overall row stays visible so you can compare it against the currently selected scope.
| Scope | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall | Overall - Jan: Good | Overall - Feb: Good | Overall - Mar: Good | Overall - Apr: Good | Overall - May: Best | Overall - Jun: Best | Overall - Jul: Best | Overall - Aug: Best | Overall - Sep: Best | Overall - Oct: Best | Overall - Nov: Good | Overall - Dec: Good |
These do not replace the overall planner. Use them only if a specific animal or event is driving your trip dates.
Green and hawksbill turtles on the reef
Best for Snorkel, Scuba, Freedive
Year-round
Turtles are among Bunaken's most consistent largeanimal sightings, especially where the shallow reef flat meets the wall.
Reef sharks and eagle rays
Best for Scuba
Year-round
Reefedge dives around Bunaken can deliver reef sharks and eagle rays, but sightings vary by site and day.
Built from climate references, access rules, and destination operators. Wildlife timing and route flexibility can shift year to year.