Best Places to Scuba Dive in October: Where to Go Diving in October

Top Picks for October

The highest-rated dive destinations at their peak this month

Galapagos Islands

4.9/5

Ecuador — Advanced — Luxury

The ultimate big-animal diving destination - Darwin and Wolf await

Vis20m

Temp22°C

Cost$400

Raja Ampat

4.9/5

Indonesia — Intermediate — Luxury

The epicenter of marine biodiversity - the Amazon of the seas

Vis30m

Temp28°C

Cost$250

Cocos Island

4.8/5

Costa Rica — Advanced — Luxury

The Island of Sharks - hammerhead schools so dense they block out the sun

Vis25m

Temp25°C

Cost$450

Where to Dive in October for Clear Water, Manta Rays and Sharks

15 destinations are at their peak this month. These three shortlists rank them by the conditions most divers plan a trip around — how far you can see, and how reliable the big animals are.

Best visibility

Best for manta rays

Best for sharks

Visibility is the average figure for the season and shark and manta scores are our own five-point rating — both are the same numbers each destination's own guide page uses.

Diving Conditions in October

What to expect underwater this month, from water temperature and visibility to marine life activity and seasonal patterns.

October opens Raja Ampat season — one of the world's great dive windows — and the Maldives enters its pre-peak. Cocos Island hammerhead schools build toward their November peak. The Similans reopen in mid-October after the monsoon. In the Caribbean, hurricane season winds down and conditions stabilise. The Red Sea remains excellent. Water temperatures across the Indo-Pacific sit at 27-29°C. This is a strong month for liveaboard itineraries in Indonesia and the Philippines before peak pricing arrives.

Marine Life in October

What you're most likely to encounter this month worldwide

M

Manta rays

Peak encounter season

S

Sharks

Peak encounter season

S

Spawning corals

Peak encounter season

Best Destinations by Region

Where to go in October, organized by continent

Asia-Pacific (6 destinations)

4.9

Raja Ampat

Indonesia — Vis 30m — Intermediate

4.8

Komodo National Park

Indonesia — Vis 25m — Advanced

4.7

Sipadan

Malaysia — Vis 30m — Intermediate

4.6

Lembeh Strait

Indonesia — Vis 10m — Beginner

4.5

Wakatobi

Indonesia — Vis 30m — Beginner

4.2

Bali

Indonesia — Vis 20m — Beginner

Africa & Middle East (1 destinations)

4.3

Ras Mohammed

Egypt — Vis 35m — Beginner

North America & Caribbean (2 destinations)

4.8

Cocos Island

Costa Rica — Vis 25m — Advanced

4.6

Bonaire

Bonaire — Vis 25m — Beginner

South America (2 destinations)

4.9

Galapagos Islands

Ecuador — Vis 20m — Advanced

4.7

Fernando de Noronha

Brazil — Vis 30m — Intermediate

Oceania (4 destinations)

4.7

Rangiroa

French Polynesia — Vis 40m — Advanced

4.6

Kimbe Bay

Papua New Guinea — Vis 25m — Beginner

4.5

Fiji

Fiji — Vis 30m — Beginner

4.5

Great Barrier Reef

Australia — Vis 25m — Beginner

October at a Glance

Best destinations this month vs destinations to avoid

Best This Month (15)

Galapagos Islands Ecuador — ★4.9 Raja Ampat Indonesia — ★4.9 Cocos Island Costa Rica — ★4.8 Komodo National Park Indonesia — ★4.8 Fernando de Noronha Brazil — ★4.7 Rangiroa French Polynesia — ★4.7 Sipadan Malaysia — ★4.7 Bonaire Bonaire — ★4.6 Kimbe Bay Papua New Guinea — ★4.6 Lembeh Strait Indonesia — ★4.6 Fiji Fiji — ★4.5 Great Barrier Reef Australia — ★4.5 Wakatobi Indonesia — ★4.5 Ras Mohammed Egypt — ★4.3 Bali Indonesia — ★4.2

Avoid This Month (12)

Palau Palau — ★4.8 Tubbataha Reefs Philippines — ★4.8 Chuuk Lagoon Micronesia — ★4.7 Maldives Maldives — ★4.7 Malapascua Philippines — ★4.5 Anilao Philippines — ★4.4 Belize Barrier Reef Belize — ★4.4 Poor Knights Islands New Zealand — ★4.4 Azores Portugal — ★4.3 Cozumel Mexico — ★4.3 Similan Islands Thailand — ★4.3 Silfra Fissure Iceland — ★4.2

Frequently Asked Questions

Where is the best scuba diving in October?

Raja Ampat season opens. Maldives pre-peak. Cocos Island hammerhead schools build.

Which dive destinations have the best visibility in October?

Among the 15 destinations at their peak in October, the clearest water is Rangiroa (40m), Ras Mohammed (35m), Raja Ampat (30m), Fernando de Noronha (30m). Those are average figures for the season, so a storm day can still fall short of them.

Where can I see manta rays in October?

Manta sightings rate highest in October at Raja Ampat (5/5), Cocos Island (5/5), Komodo National Park (5/5), Galapagos Islands (4/5), on our five-point marine-life scale. Clean-water cleaning stations are where they show up most reliably.

Where can I see sharks in October?

Shark action rates highest in October at Galapagos Islands (5/5), Raja Ampat (5/5), Cocos Island (5/5), Komodo National Park (5/5), on our five-point marine-life scale. Passes and channel currents between islands are the usual places to wait for them.

What marine life can I see in October?

In October, divers can commonly encounter: Manta rays, Sharks, Spawning corals. Specific encounters depend on the destination and local conditions.

Should I avoid any dive destinations in October?

Yes — 12 destinations in our database are outside their best season in October. These include Palau, Tubbataha Reefs, Chuuk Lagoon, Maldives, Malapascua. Visibility and conditions may be below peak, but many sites remain diveable year-round.