01 / Western Australia
Ningaloo Reef
Reefs close to shore
A large fringing reef with coral and fish, reachable from beaches.
- Start here
- Oyster Stacks (high tide only)
- Historical conditions
- 0% calm mornings · Dec, Jan, Nov by model score
Explore first. Check conditions next.
Fourteen extraordinary reefs, wildlife encounters and shore-to-boat adventures. Choose what you want to see, then compare marine conditions. Calm water cannot measure reef quality or guarantee safe entry.
01 / Western AustraliaNingaloo Reef
Marine model data, not safety clearance.
The underwater shortlist
From sardine clouds and sea turtles to shore reefs and coral gardens, pick the experience first—not just the forecast. Each destination has a named place to start, practical access guidance and a linked source.
01 / Western Australia
Reefs close to shore
A large fringing reef with coral and fish, reachable from beaches.
02 / Queensland, Australia
Expansive coral reef trips
Marine park reefs with snorkelling trips from coastal gateways.
03 / Hawaii, USA
Protected reef fish habitat
A designated marine-life conservation area with coral, fish and turtles.
04 / Cebu, Philippines
The shore-access sardine run
A year-round sardine aggregation near Panagsama Beach, with Pescador Island coral trips nearby.
05 / Egypt, Red Sea
Colourful Red Sea coral reefs
A gateway to Ras Um al-Sid and Gardens Reef, with coral formations and reef fish.
06 / Palau, western Pacific
Exceptional island-reef landscapes
UNESCO-listed coral reef and limestone-island habitats with extensive marine biodiversity.
Make the right choice
Wildlife, exact spots and access come from cited travel or conservation sources. Calm-morning percentages and modelled best months appear only for destinations with a complete, comparable 12-month dataset. They measure marine conditions—not reef quality or safe swimming.
| Destination and experience | Where and how | When to go | Historical conditions | Source |
|---|---|---|---|---|
| Ningaloo Reef Western Australia Reefs close to shore | Oyster Stacks (high tide only) Shore at designated sites | Check local tide and annual marine conditions; Oyster Stacks requires a tide of at least 1.2 m. | 0% calm mornings Top-scoring months: Dec, Jan, Nov Water temperature ↗ | Western Australia Parks ↗ Site details ↗ |
| Great Barrier Reef Queensland, Australia Expansive coral reef trips | Outer reef trips from Cairns Usually an organised boat trip | Pick a reef and operator first; local wind and sea conditions determine suitable boat days. | 32% calm mornings Top-scoring months: Nov, Oct, Jan Water temperature ↗ | Great Barrier Reef Marine Park Authority ↗ |
| Hanauma Bay, Oahu Hawaii, USA Protected reef fish habitat | Hanauma Bay Marine Life Conservation District Beach entry with visitor rules | Visitor entry rules and daily conditions matter more than a single preferred month. | Not enough comparable history | Hawaii Division of Aquatic Resources ↗ |
| Bonaire Dutch Caribbean Independent shore snorkelling | Marked shore-entry sites around Bonaire Many shore entries; some sites are rocky | Compare coastal exposure and access at the actual site; no universal best month is claimed. | 3% calm mornings Top-scoring months: Oct, Sep, Dec Water temperature ↗ | Tourism Corporation Bonaire ↗ |
| Cozumel Mexico, Caribbean Coral and Caribbean marine life | Cozumel Reefs National Marine Park Approved boat trips and designated shore areas | Check park access and current conditions for the individual reef. | 56% calm mornings Top-scoring months: Aug, Apr, Jul Water temperature ↗ | Mexico CONANP national parks ↗ |
| North Malé Atoll Maldives House-reef snorkelling | Select a house-reef island before booking Depends on island and resort; confirm entry points | Manta encounters differ by site and monsoon: verify the specific reef, not just the atoll. | Not enough comparable history | Visit Maldives (North Malé house-reef example) ↗ Site details ↗ |
| Raja Ampat Indonesia Exceptional reef biodiversity | Choose a locally guided island or reef Remote archipelago; plan local boats and guides | Conditions vary between channels and islands; plan with a local operator. | Not enough comparable history | Associated Press conservation reporting ↗ |
| Moalboal Cebu, Philippines The shore-access sardine run | Panagsama Beach sardine run Shore at Panagsama; boat for Pescador | Cebu tourism lists December–May as the drier visitor season; sardines are reported year-round. | Not enough comparable history | Cebu provincial tourism ↗ Site details ↗ |
| Hol Chan Marine Reserve Ambergris Caye, Belize Sharks, rays and Caribbean reef life | Hol Chan channel and Shark Ray Alley Guided boat from San Pedro | Confirm the actual boat day; a calm month is not a guarantee at the reef. | Not enough comparable history | Belize Tourism Board ↗ |
| Sharm El Sheikh Egypt, Red Sea Colourful Red Sea coral reefs | Ras Um al-Sid reef Beach-access sites and boat trips | Review local wind forecasts and site exposure; no single best month is asserted. | Not enough comparable history | Experience Egypt tourism ↗ |
| Aqaba Jordan, Red Sea Accessible coral gardens | Japanese Garden Choose a licensed dive or snorkel centre | Compare local wind and sea forecasts; access varies by dive site. | Not enough comparable history | Visit Jordan tourism ↗ |
| Galápagos Islands Ecuador, Pacific Sea lions and marine iguanas | Santa Cruz gateway (forecast representative only) Protected visitor sites, often guided boats | Santa Cruz is the linked forecast gateway, not a direct estimate for Española's wildlife sites. | Not enough comparable history | Galápagos Conservancy ↗ |
| Palau Rock Islands Palau, western Pacific Exceptional island-reef landscapes | German Channel (Rock Islands boat route) Permitted guided boat routes | German Channel is the monitored forecast point; other Rock Islands reefs can have different conditions. | Not enough comparable history | UNESCO World Heritage Centre ↗ Site details ↗ |
| Maui Hawaii, USA Choosing a beach from real forecasts | Honolua Bay (conditions permitting) Shore beaches and some boat sites | Compare season, swell direction and Maui's day-by-day beach report. | 37% calm mornings Top-scoring months: Jun, Jul, May Water temperature ↗ | Hawaii Division of Aquatic Resources ↗ Site details ↗ |
Historical model window: Oct 2025–Sep 2026. Top months are scored on modelled sea conditions, not animal sighting probabilities.
We selected different types of experience—wildlife encounters, coral reefs, easy shore entry and boat adventures—using park authorities, tourism boards and conservation sources. Follow each source link to check the claim. This is a curated guide, not an invented biodiversity score.
For coverage-qualified locations, we reuse the same 12 complete months of historical modelled wave, wind and temperature inputs. “Calm mornings” and “top-scoring months” never imply that nearshore currents, underwater visibility or wildlife have been measured—or that entering the water is safe.
The selected photographs are Creative Commons media, with the creator and license beside each photo. This guide was reviewed on 11 October 2026; entry rules, wildlife, sea conditions and availability can change. Confirm details before travelling.
Seasonal field atlas
Compare places in the Northern and Southern Hemispheres, with modelled conditions for each calendar month instead of generic tropical travel advice.
Original SnorkelForecast data
A like-for-like comparison of 12 complete months of modelled wind, waves and temperature, migrated from our former standalone world-ranking guide. This does not measure visibility, coral, wildlife or safe water entry, and is separate from the stored forecast leaderboard.
| Destination | Annual model score / 100 | Calm mornings | All-hours calm | Mean water temp | Top-scoring months |
|---|---|---|---|---|---|
| Key LargoUSA · 8760 sampled hours | 29.1 | 66.5% | 67.3% | 27.2°C | Jun, Jul, Aug |
| CozumelMexico · 8760 sampled hours | 27.6 | 56.3% | 54.1% | 28.6°C | Aug, Apr, Jul |
| MallorcaSpain · 8760 sampled hours | 27.6 | 59.2% | 59.4% | 21.1°C | Jul, Jun, Sep |
| Bahia HondaUSA · 8760 sampled hours | 26.8 | 48.1% | 48.1% | 27.4°C | Jun, May, Jul |
| Looe KeyUSA · 8760 sampled hours | 25.8 | 45.5% | 44.8% | 27.7°C | Jun, May, Jul |
| MauiUSA · 8760 sampled hours | 25.7 | 36.6% | 34.9% | 26.3°C | Jun, Jul, May |
| Dry TortugasUSA · 8760 sampled hours | 25.6 | 40.3% | 40.9% | 27.1°C | Jun, May, Jul |
| KauaiUSA · 8760 sampled hours | 23.0 | 0.0% | 0.0% | 26.2°C | Jun, May, Apr |
| Great Barrier ReefAustralia · 8760 sampled hours | 22.3 | 32.2% | 30.4% | 26.7°C | Nov, Oct, Jan |
| RoatánHonduras · 8760 sampled hours | 21.6 | 16.6% | 15.3% | 28.3°C | Apr, Oct, Nov |
| Ningaloo ReefAustralia · 8760 sampled hours | 21.5 | 0.0% | 0.0% | 24.9°C | Dec, Jan, Nov |
| OahuUSA · 8760 sampled hours | 21.1 | 0.0% | 0.0% | 26.1°C | Jun, May, Jul |
| Goat IslandNew Zealand · 8760 sampled hours | 19.7 | 28.6% | 28.7% | 18.3°C | Jan, Dec, Feb |
| Jervis BayAustralia · 8760 sampled hours | 19.6 | 0.0% | 0.0% | 19.9°C | Dec, Jan, Feb |
| KralendijkBonaire · 8760 sampled hours | 15.8 | 3.3% | 2.7% | 27.9°C | Oct, Sep, Dec |
| Destination | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Key Largo | 27/10068% calm | 26/10067% calm | 26/10066% calm | 25/10061% calm | 29/10069% calm | 26/10040% calm | 28/10045% calm | 32/10054% calm | 35/10089% calm | 33/10074% calm | 32/10085% calm | 31/10090% calm |
| Cozumel | 30/10076% calm | 28/10065% calm | 26/10056% calm | 24/10044% calm | 24/10038% calm | 26/10030% calm | 31/10047% calm | 28/10035% calm | 23/10028% calm | 30/10066% calm | 33/10081% calm | 29/10085% calm |
| Mallorca | 26/10054% calm | 18/10030% calm | 15/10048% calm | 10/10022% calm | 14/10027% calm | 19/10053% calm | 29/10073% calm | 37/10069% calm | 43/10086% calm | 44/10090% calm | 37/10075% calm | 38/10087% calm |
| Bahia Honda | 25/10042% calm | 23/10031% calm | 23/10046% calm | 22/10045% calm | 25/10038% calm | 24/10026% calm | 26/10038% calm | 31/10051% calm | 33/10066% calm | 31/10052% calm | 30/10064% calm | 29/10079% calm |
| Looe Key | 24/10040% calm | 21/10024% calm | 22/10043% calm | 21/10040% calm | 24/10029% calm | 21/10024% calm | 25/10038% calm | 31/10051% calm | 32/10061% calm | 30/10050% calm | 29/10061% calm | 28/10077% calm |
| Maui | 27/10074% calm | 24/10052% calm | 24/10051% calm | 25/10068% calm | 24/10030% calm | 23/10028% calm | 27/10057% calm | 27/10011% calm | 29/1002% calm | 28/1005% calm | 25/10022% calm | 24/10018% calm |
| Dry Tortugas | 22/10021% calm | 21/10027% calm | 20/10028% calm | 21/10030% calm | 23/10029% calm | 24/10025% calm | 24/10028% calm | 31/10047% calm | 32/10063% calm | 30/10050% calm | 29/10069% calm | 29/10075% calm |
| Kauai | 24/1000% calm | 22/1000% calm | 20/1000% calm | 21/1000% calm | 19/1000% calm | 21/1000% calm | 25/1000% calm | 26/1000% calm | 28/1000% calm | 24/1000% calm | 24/1000% calm | 22/1000% calm |
| Great Barrier Reef | 30/10050% calm | 33/10075% calm | 26/10042% calm | 28/10067% calm | 27/10056% calm | 19/10016% calm | 16/1003% calm | 19/10021% calm | 17/10014% calm | 16/1003% calm | 19/10014% calm | 18/1005% calm |
| Roatán | 26/10047% calm | 23/10022% calm | 22/10023% calm | 20/10017% calm | 21/1009% calm | 21/1002% calm | 26/10025% calm | 21/1006% calm | 18/1000% calm | 19/1001% calm | 20/1009% calm | 22/10023% calm |
| Ningaloo Reef | 21/1000% calm | 23/1000% calm | 24/1000% calm | 23/1000% calm | 22/1000% calm | 21/1000% calm | 22/1000% calm | 20/1000% calm | 18/1000% calm | 21/1000% calm | 22/1000% calm | 21/1000% calm |
| Oahu | 22/1000% calm | 20/1000% calm | 19/1000% calm | 21/1000% calm | 18/1000% calm | 20/1000% calm | 22/1000% calm | 24/1000% calm | 26/1000% calm | 22/1000% calm | 21/1000% calm | 19/1000% calm |
| Goat Island | 18/10029% calm | 24/10030% calm | 27/10027% calm | 27/10041% calm | 26/10037% calm | 22/10034% calm | 17/10013% calm | 13/1007% calm | 15/10028% calm | 15/10039% calm | 15/10032% calm | 16/10028% calm |
| Jervis Bay | 20/1000% calm | 22/1000% calm | 24/1000% calm | 24/1000% calm | 22/1000% calm | 22/1000% calm | 21/1000% calm | 18/1000% calm | 16/1000% calm | 15/1000% calm | 17/1000% calm | 17/1000% calm |
| Kralendijk | 20/10021% calm | 15/1000% calm | 17/1003% calm | 15/1001% calm | 16/1001% calm | 16/1002% calm | 16/1005% calm | 14/1000% calm | 14/1000% calm | 14/1000% calm | 15/1000% calm | 18/1000% calm |
Comparison window: 1 Oct 2025–30 Sep 2026. Each qualifying destination has at least 20 valid days (18+ hourly samples) in each of all 12 months, using the same scoring profile. Scores combine waves, wind, water temperature, daylight and available tide/current inputs. Partial captured forecast history is excluded. Open-Meteo Marine API · ERA5 historical weather.
Ranked by forecast marine conditions at monitored places, not reef health, wildlife or ease of access. These model scores are not safety clearance.
#1 forecast pick
Jordan - 46% snorkelable hours
#2 forecast pick
Spain - 44% snorkelable hours
#3 forecast pick
Spain - 44% snorkelable hours
#4 forecast pick
Spain - 44% snorkelable hours
#5 forecast pick
Spain - 44% snorkelable hours
#6 forecast pick
Spain - 44% snorkelable hours
#7 forecast pick
Spain - 44% snorkelable hours
#8 forecast pick
Spain - 44% snorkelable hours
#9 forecast pick
Belize - 51% snorkelable hours
#10 forecast pick
Cyprus - 44% snorkelable hours
These scores summarise stored forecast hours from the past 365 days, but coverage differs by place. They are not a representative full-year reef-quality ranking. For a like-for-like 12-month model comparison, see the historical conditions comparison.
#1 historical
Montenegro
Fjord-like Adriatic bay with sheltered, clear water and rocky shores.
3428 sampled hours, 44% snorkelable
#2 historical
Albania
Ionian islets and turquoise shallows on the Albanian Riviera near Butrint.
3428 sampled hours, 42% snorkelable
#3 historical
Croatia
Wooded Adriatic island with pebbly coves and clear, calm water.
3428 sampled hours, 41% snorkelable
#4 historical
Slovenia
Adriatic town with the Strunjan nature reserve's clear, sheltered shallows.
3428 sampled hours, 42% snorkelable
#5 historical
Spain
Sheltered urban beach east of Malaga city with rocky groynes and easy access for quick Costa del Sol snorkel checks.
2678 sampled hours, 45% snorkelable
#6 historical
Spain
Malaga beach district with protected swimming areas, small breakwaters and easy shore entry on calm mornings.
2678 sampled hours, 44% snorkelable
#7 historical
Spain
Eastern Malaga beach between El Candado and La Arana, split by its namesake rock and useful for checking protected near-city snor…
2678 sampled hours, 44% snorkelable
#8 historical
Spain
Rocky Malaga shoreline near the old seaside baths, useful for checking low-swell snorkel windows close to the city.
2678 sampled hours, 44% snorkelable
#9 historical
Spain
Central Malaga city beach for quick sea-temperature, wind and wave checks before swimming or beginner snorkeling.
2678 sampled hours, 45% snorkelable
#10 historical
Italy
Sicilian coast with Isola Bella's pebble bay and clear rocky shallows.
3428 sampled hours, 41% snorkelable
#11 historical
Italy
Tuscan archipelago island with sheltered coves and seagrass-clear water.
3428 sampled hours, 39% snorkelable
#12 historical
Croatia
Island home to Zlatni Rat beach and clear pebbly Adriatic shallows.
3428 sampled hours, 41% snorkelable
#13 historical
Turkey
Aegean-Med resort with sheltered bays and clear water around Turunç.
3428 sampled hours, 42% snorkelable
#14 historical
Italy
Calabrian cliff town with clear Tyrrhenian water and rocky snorkeling.
3428 sampled hours, 40% snorkelable
#15 historical
Croatia
Forested national-park island with saltwater lakes and clear sheltered bays.
3428 sampled hours, 39% snorkelable
#16 historical
Croatia
Island beside Kornati park with Telašćica's cliffs and clear bays.
3428 sampled hours, 39% snorkelable
#17 historical
Croatia
Istrian town with rocky coves and clear northern Adriatic water.
3428 sampled hours, 40% snorkelable
#18 historical
Spain
Clear-water cove near Nerja in Malaga province, one of the Costa del Sol's stronger shore-snorkeling options when swell and wind …
2678 sampled hours, 38% snorkelable
#19 historical
Italy
Protected Ligurian coast with rocky coves and clear snorkeling off the villages.
3428 sampled hours, 37% snorkelable
#20 historical
Greece
Ionian island with the turquoise water of Myrtos and sheltered pebble coves.
3428 sampled hours, 39% snorkelable
#21 historical
Spain
Rocky cliffs and coves on the Malaga-Granada coast, exposed in wind or swell but rewarding for confident snorkelers in settled Me…
2678 sampled hours, 38% snorkelable
#22 historical
Croatia
Remote Adriatic island with the Blue Cave nearby and exceptionally clear coves.
3428 sampled hours, 36% snorkelable
#23 historical
Turkey
Turquoise Coast hub with Ölüdeniz lagoon and sheltered clear bays.
3428 sampled hours, 41% snorkelable
#24 historical
Greece
Ionian island with Porto Katsiki and turquoise, sheltered swimming bays.
3428 sampled hours, 36% snorkelable
#25 historical
Jordan
Jordan's Red Sea coast with shore reefs, coral and the Cedar Pride wreck.
3428 sampled hours, 41% snorkelable
#26 historical
Turkey
Famous Blue Lagoon with calm, glassy turquoise water for easy snorkeling.
3428 sampled hours, 40% snorkelable
#27 historical
Italy
Iconic island with sea caves and clear water around the Faraglioni.
3428 sampled hours, 37% snorkelable
#28 historical
France
Mediterranean island with the Scandola reserve and turquoise granite coves.
3428 sampled hours, 35% snorkelable
#29 historical
Spain
Balearic island laced with sheltered calas of crystal-clear Mediterranean water.
3428 sampled hours, 37% snorkelable
#30 historical
Italy
Mediterranean island ringed by white sand and the clear coves of the Maddalena.
3428 sampled hours, 36% snorkelable
Want comparable historical numbers rather than the unevenly captured forecasts above? Explore the full-year historical dataset and monthly comparison. These two sections deliberately use different data sources.