Best Places to Scuba Dive in October

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.

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.