Best time to dive Tulamben & Amed

Dry season (about April–November) brings calm seas and 15–25 m visibility on the Liberty wreck; the rainy season (December–March) stays diveable on the sheltered northeast coast with lower visibility.

Peak season: year-round

Best upcoming months:6.0April 2027 6.0May 2027 5.9June 2027

Overall diving, month by month

Balanced scoring · forecasts include the 2026/27 El Niño outlook

Confidence: Nov medium · Dec medium · Jan medium · Feb medium · Mar medium · Apr medium · May medium · Jun medium · Jul medium · Aug medium · Sep medium · Oct low · Nov low · Dec low

What's good when

Each attribute scored 0–10 for every month

	Nov2026	Dec	Jan2027	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Pelagic & big animals	5	5	5	5	5	5	5	5	5	5	5	5	5	5
Macro life	8	8	8	8	8	8	8	8	8	8	8	8	8	8
Coral & reef health	5	5	5	5	5	5	5	5	5	5	5	5	5	5
Visibility	6	5	5	5	6	7	7	7	7	7	7	7	6	5
Water temperature	9	9	9	10	10	10	10	9	8	8	8	9	10	10
Weather & sea state	8	7	7	6	7	8	9	9	9	9	9	9	7	6
Operations & access	10	10	10	10	10	10	10	10	10	10	10	10	10	10
Wreck diving	7	7	7	7	7	7	7	7	7	7	7	7	7	7

Climate outlook

How this year's forecast differs from a typical year

Weather & sea state +1 · El Niño makes the wet season drier (Nov 2026 – April 2027)
Water temperature -0.8 °C · Indonesian seas run cooler during El Niño (Nov 2026 – April 2027)
Coral & reef health -1 · El Niño sea-level drop and heat stress damage shallow reefs (Nov 2026 – December 2027)

Water temperature & visibility

Month	Water	Visibility
November 2026	27.3 °C (81 °F)	10–20 m
December 2026	27.7 °C (82 °F)	8–15 m
January 2027	27.8 °C (82 °F)	8–15 m
February 2027	27.9 °C (82 °F)	8–15 m
March 2027	28.1 °C (83 °F)	10–20 m
April 2027	28.2 °C (83 °F)	15–25 m
May 2027	27.8 °C (82 °F)	15–25 m
June 2027	26.9 °C (80 °F)	15–25 m
July 2027	26.0 °C (79 °F)	15–25 m
August 2027	25.6 °C (78 °F)	15–25 m
September 2027	26.1 °C (79 °F)	15–25 m
October 2027	27.2 °C (81 °F)	15–25 m
November 2027	28.2 °C (83 °F)	10–20 m
December 2027	28.7 °C (84 °F)	8–15 m

Marine life calendar

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
bumphead parrotfish	●	●	●	●	●	●	●	●	●	●	●	●
pygmy seahorse	●	●	●	●	●	●	●	●	●	●	●	●
garden eels	●	●	●	●	●	●	●	●	●	●	●	●
barracuda	●	●	●	●	●	●	●	●	●	●	●	●
ribbon eels	●	●	●	●	●	●	●	●	●	●	●	●
nudibranchs	●	●	●	●	●	●	●	●	●	●	●	●
ghost pipefish	●	●	●	●	●	●	●	●	●	●	●	●
octopus	●	●	●	●	●	●	●	●	●	●	●	●
frogfish	●	●	●	●	●	●	●	●	●	●	●	●
lionfish	●	●	●	●	●	●	●	●	●	●	●	●

Peak = best odds · ● = regularly seen · blank = unlikely. Calendar months, every year.

About the diving

Difficulty: Beginner
Current strength: 1 / 5
Luxury level: 4 / 5
Typical depth: 3–30 m
Max depth of interest: 35 m
Dive styles: Shore, Resort
Suggested certification: Open Water
Nearest airport: DPS
Snorkelling: Good
Known for: bumphead parrotfish, pygmy seahorse, garden eels, barracuda

Famous sites: USAT Liberty · Tulamben Drop-off · Coral Garden · Jemeluk Bay

Season notes & sources

Dry season (about April–November) brings calm seas and 15–25 m visibility on the Liberty wreck; the rainy season (December–March) stays diveable on the sheltered northeast coast with lower visibility.
Coral Garden has ribbon eels and ghost pipefish; Seraya Secrets has nudibranchs, frogfish, lionfish, cuttlefish and mimic octopus. Emerald has garden eels. Calendars describe resident groups across sites; no eel or macro monthly peak is established by these site guides.