30 diving destinations have the right October conditions — typically 25–29°C with sea temperatures of 27–30°C. Which is best depends on where you start from: the ranking below is computed in your browser, for your own location and preferences, and matches the live map exactly.
Open this on the live map →| Destination | °C | Sea | Rain d | Price | Safety |
|---|---|---|---|---|---|
| Ban Ao Nang, TH | 27° | 29° | 255 | € | safe |
| Basse-Terre, GP | 27° | 29° | 174 | € | very safe |
| Charlotte Amalie, VI | 28° | 29° | 140 | €€ | — |
| Darwin, AU | 29° | 30° | 77 | €€ | safe |
| Fort-de-France, MQ | 27° | 29° | 239 | € | very safe |
| George Town, MY | 27° | 30° | 255 | € | safe |
| Grand-Bourg, GP | 28° | 29° | 181 | € | very safe |
| Honolulu, US | 26° | 27° | 106 | €€ | safe |
| Hurghada, EG | 25° | 27° | 1 | € | some risk |
| Key West, US | 26° | 28° | 114 | €€ | safe |
| Ko Samui, TH | 27° | 29° | 255 | € | safe |
| Kolonia, FM | 27° | 30° | 255 | €€ | safe |
| Kota Kinabalu, MY | 27° | 30° | 255 | € | safe |
| Kralendijk, BQ | 29° | 29° | 72 | € | — |
| Le Gosier, GP | 27° | 29° | 178 | € | very safe |
| Lower Prince’s Quarter, SX | 28° | 29° | 116 | €€ | safe |
| Makadi Bay, EG | 26° | 28° | 1 | € | some risk |
| Mamoudzou, YT | 26° | 27° | 74 | € | very safe |
| Marsa Alam, EG | 28° | 28° | 1 | € | some risk |
| Noord, AW | 29° | 29° | 65 | €€ | safe |
| Pattaya, TH | 28° | 29° | 255 | € | safe |
| Phuket, TH | 27° | 29° | 255 | € | safe |
| Saint Croix, VI | 27° | 29° | 134 | €€ | — |
| San Jose Village, MP | 28° | 29° | 255 | € | — |
| Sharm el-Sheikh, EG | 27° | 28° | 1 | € | some risk |
| Singapore, SG | 27° | 29° | 194 | € | safe |
| Sunrise, US | 26° | 28° | 158 | €€ | safe |
| Tamuning-Tumon-Harmon Village, GU | 27° | 29° | 255 | € | safe |
| Weno, FM | 28° | 30° | 255 | €€ | safe |
| Willemstad, CW | 29° | 29° | 71 | €€ | safe |
Listed alphabetically: destinations whose October climate, safety and viability pass Travelia's bar for diving trips. The Travelia Score isn't shown here because it isn't a fixed rating — it's computed live for your location and preferences. With JavaScript on, this table becomes your personal ranking (identical to the map's numbers); with it off, the facts stand on their own.