Semporna (Sipadan, Mabul, Kapalai) When To Go Diving

Semporna (Sipadan, Mabul, Kapalai) When To Go Diving

When to go

Best time to visit Semporna (Sipadan, Mabul, Kapalai)

Semporna diving runs yearround, but conditions shift with Sabah's monsoon patterns.

Best overall window

April to October

Calmer seas and better odds of clearer visibility on crossings; warm water around 28°C.

Outside that window

Northeast monsoon influence can bring heavier rain and stronger winds (often up to 25 km/h), making boat rides rougher and visibility more variable.

Choose your trip style

Start with the overall answer, then switch only when scuba, freedive, snorkel, or topside timing changes the trip in a meaningful way.

Month-by-month planner

The overall row stays visible so you can compare it against the currently selected scope.

BestGoodTradeoffsMore variable

Scope	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Overall	Overall - Jan: Tradeoffs	Overall - Feb: Tradeoffs	Overall - Mar: Good	Overall - Apr: Best	Overall - May: Best	Overall - Jun: Best	Overall - Jul: Best	Overall - Aug: Best	Overall - Sep: Best	Overall - Oct: Best	Overall - Nov: Tradeoffs	Overall - Dec: Tradeoffs

Wildlife goals and seasonal highlights

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
Best for Scuba, Snorkel, Freedive
Year-round
JanFebMarAprMayJunJulAugSepOctNovDec
Turtles are a signature of the Semporna area, especially around Sipadan walls and the reefs near Mabul and Kapalai.
Barracuda and jack schooling
Best for Scuba, Freedive
Year-round
JanFebMarAprMayJunJulAugSepOctNovDec
Schooling fish action is a core Sipadan experience, especially at corners like Barracuda Point when current concentrates life.
Macro critter hunting (muck and reef edges)
Best for Scuba, Snorkel
Year-round
JanFebMarAprMayJunJulAugSepOctNovDec
Mabul and Kapalai are productive yearround for nudibranchs, pipefish, frogfish, and cephalopods.
Potential Sipadan conservation closure window
Best for Scuba, Freedive, Snorkel
Nov
JanFebMarAprMayJunJulAugSepOctNovDec
Sipadan has had conservationdriven closures, including a full closure period that has been communicated around November in some years.
Bohey Dulang crater-lagoon viewpoint
Best for Topside
Mar to Sep
JanFebMarAprMayJunJulAugSepOctNovDec
Drierseason mornings give the best odds of clear views over the lagoon and islands in Tun Sakaran Marine Park.

Always true for this destination

If Sipadan is your priority, permits matter more than season.

Seasonal cautions

Mar: Transition month. Often good travel value with improving surface conditions.
Nov to Feb: Northeast monsoon influence can bring heavier rain and stronger winds (often up to 25 km/h), making boat rides rougher and visibility more variable.

Built from climate references, access rules, and destination operators. Wildlife timing and route flexibility can shift year to year.