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Dive Sites

Christmas Island

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When to dive?

We love diving all year round, and find it difficult to answer the best time to come!

There are two distinct seasons: the dry or “trades” from April to November with winds coming from the south and south east; and the wet or “swell” season from November to April with winds coming from the north west. 

This affects access to dive sites, with the north and west coasts more accessible during the dry season and sites on the east only accessible in the wet. 


Launching facilities for many boats become restricted during the wet, when swells are at their highest, but this is also the doldrums season and can offer some of the best diving of the year.

Our boat is too large to launch each day, so most of the year it is moored in Flying Fish Cove, with the ability to move to the east coast when necessary.
For many who want to see Whale sharks- they visit the island generally from October to April but have been seen outside these months all along the coast, even on the shore dive from the Jetty.

There is however no guarantee, making their appearance even more special for divers and snorkellers.
There are large schools of spinner dolphins seen year-round and manta rays that seem to appear around the same time as the whale sharks, presumably to feed on the red crab larvae.
When the water is cooler from August to September, there are upwellings from the Java Trench that bring nutrients and sometimes lower visibility (~15 m). Generally speaking, visibility is around 20 – 25m but can increase to around 50 – 60 m during the doldrums and just before the wet in October to December.

July to October, is the least rainy and the sunniest period of the year; in particular, the months of August and September stand out as the driest.


Our busiest time is from October to December, with space a premium on the boat, particularly during the red crab migration period.
Our international guests book years ahead!

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