SnorkelForecast Field Atlas / Seasonal planning

Best Places to Snorkel in November

Where to snorkel in November: compare historical wave, wind, calm-water and temperature evidence at monitored destinations worldwide.

November marks the approach of Southern Hemisphere summer and Northern Hemisphere winter. Consider Hawaiian winter swell and tropical cyclone and stinger seasons.

Choose the coast and the day, not just the month. Summer does not guarantee calm water. Historical model scores reflect conditions at monitored model points—not reef quality, underwater visibility, wildlife or clearance to enter the sea.

Original comparable model evidence

November conditions by destination

These locations have a full year of comparable model observations. The table uses November data only, not the annual average; it is not a complete ranking of all the world’s reefs. Importantly, the model averages nighttime hours scored zero, so even a top place can have a modest score. This is not a percentage of safe snorkeling time.

Destinations compared
11
Countries represented
5
Observed month
Nov 2025
MODEL #01 / 11 MONITORED Cozumel Mexico 65% calm sampled hours · 29.0°C sea MODEL #02 / 11 MONITORED Key Largo USA 67% calm sampled hours · 25.5°C sea MODEL #03 / 11 MONITORED Maui USA 52% calm sampled hours · 26.4°C sea
Comparable November marine model conditions. More points means more favorable modelled conditions, not a safety rating.
Destination Model score /100 · night included Calm sampled hours Sea temperature Hemisphere
01 Cozumel Mexico · Water temperature history 28.1 65%67% calm mornings 29.0°C Northern
02 Key Largo USA · Water temperature history 26.2 67%61% calm mornings 25.5°C Northern
03 Maui USA · Water temperature history 24.4 52%54% calm mornings 26.4°C Northern
04 Roatán Honduras · Water temperature history 23.1 22%25% calm mornings 28.7°C Northern
05 Bahia Honda USA · Water temperature history 22.6 31%26% calm mornings 26.8°C Northern
06 Kauai USA · Water temperature history 21.7 0%0% calm mornings 26.7°C Northern
07 Dry Tortugas USA · Water temperature history 21.4 27%27% calm mornings 26.2°C Northern
08 Looe Key USA · Water temperature history 21.4 24%21% calm mornings 27.4°C Northern
09 Oahu USA · Water temperature history 20.0 0%0% calm mornings 26.4°C Northern
10 Mallorca Spain · Water temperature history 18.3 30%33% calm mornings 20.4°C Northern
11 Kralendijk Bonaire · Water temperature history 14.6 0%0% calm mornings 28.5°C Northern

South of the equator

Southern Hemisphere destinations

September to November is Southern Hemisphere spring moving toward summer. Tropical wet and marine-stinger seasons begin in some areas before the calendar summer.

No qualifying southern locations in the current comparable cohort; this is not a finding that southern snorkeling is worse.

Southern locations to investigate · unranked

These existing forecast destinations do not have comparable monthly scores yet and are not recommendations for this month.

  • Jervis BayTemperate New South Wales shore snorkeling; check exposure, swell and rainfall.
  • Ningaloo ReefWestern Australian fringing reef; safe access and tide windows vary by site.
  • Great Barrier ReefQueensland tropical reefs; summer overlaps marine-stinger, wet and cyclone seasons.
  • Goat Island Marine ReserveNew Zealand temperate-water reserve; local water temperature and swell matter.

North of the equator

Northern Hemisphere destinations

September to November is Northern Hemisphere autumn moving toward winter. In the Atlantic, tropical-storm risk and changing swell exposure matter more than a general 'best month' label.

  1. Cozumel28/100 · Mexico
  2. Key Largo26/100 · USA
  3. Maui24/100 · USA
  4. Roatán23/100 · Honduras
  5. Bahia Honda23/100 · USA
  6. Kauai22/100 · USA

How to use this comparison

Historical, not a live forecast

The sampled month is part of the 1 Oct 2025–30 Sep 2026 historical window. Models are not underwater observations or predictions for next year. Follow each location report for the current forecast.

Coverage before ranking

Each listed destination meets a 12-month coverage check with at least 20 qualified days per month and 18 hourly samples per day. No partial-year comparisons or mixed scoring profiles.

What 25/100 means

The all-hours Snorkel Score includes night hours scored zero. A 25/100 score does not mean a reef is poor or 25% of hours are safe. Calm-share is a wind-and-wave threshold, also not a safety guarantee. Visibility, shorebreak and hazardous currents require local checks.

Underlying data: Open-Meteo Marine API and historical weather. View the annual comparison. Commercial listings never affect the order.