Bacalar Lagoon beach forecast: weather, water & waves
Bacalar, MX · Costa Maya & Bacalar, Mexico · 18.678, -88.392
Updated : low seaweed, beach grade A-, sea 85°F.
Veabird's call
Go Friday for its A- with little seaweed, calm water and 85°F water.
Sunday has a 88% chance of rain, so hold time for Bacalar Lagoon of Seven Colors.
Grades from Veabird's beach forecast; wording by AI (Muse Spark), checked against the forecast. Updated Nov 13, 01:00 UTC.
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Where to stay nearby
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Questions about Bacalar Lagoon
Does Bacalar Lagoon get sargassum (seaweed)?
Rarely. Bacalar Lagoon sits outside the reach of the Atlantic sargassum belt, so seaweed landings are rare in any month.
How warm is the water at Bacalar Lagoon?
About 84°F in November. The sea is warmest in September (about 87°F) and coolest in February (about 80°F).
When is the best time to visit Bacalar Lagoon?
For warm water and dry weather, aim for January through May. May is usually the quietest of those, with about 11 rainy days and a sea near 84°F.
When is hurricane season at Bacalar Lagoon, and how often do storms hit?
The Atlantic hurricane season runs June through November and peaks around September. A tropical storm passed within 86 miles of Bacalar Lagoon in 17 of the 55 seasons from 1971 to 2025, and a hurricane within 58 miles in 4. The riskiest stretch is around October 8, when the chance of a storm passing in any one week is about 3%; across all of October it is about 8%. Flexible bookings and travel insurance help in the peak weeks.
Sargassum season at Bacalar Lagoon Hotels
Bacalar Lagoon Hotels sits outside the reach of the Atlantic sargassum belt; seaweed landings are rare in any month.
Costa Maya month by month
Typical weather, water temperature, seaweed and crowds for every month: the best time to visit Costa Maya.
Weather & water by month at Bacalar Lagoon Hotels
Average highs run from about 82°F in January to 92°F in May. The sea is warmest in September (about 87°F) and coolest in February (about 80°F). April is usually the driest, with about 8 rainy days; September is the wettest, with about 23 rainy days.
| Month | Avg high | Sea | Rainy days |
|---|---|---|---|
| Jan | 82°F | 81°F | 13 |
| Feb | 84°F | 80°F | 9 |
| Mar | 88°F | 82°F | 9 |
| Apr | 91°F | 82°F | 8 |
| May | 92°F | 84°F | 11 |
| Jun | 89°F | 85°F | 22 |
| Jul | 90°F | 85°F | 21 |
| Aug | 91°F | 86°F | 22 |
| Sep | 90°F | 87°F | 23 |
| Oct | 88°F | 86°F | 20 |
| Nov | 85°F | 84°F | 16 |
| Dec | 83°F | 83°F | 15 |
Monthly averages from 6 years of ERA5 reanalysis (Open-Meteo) for this area's 0.5° grid cell; rainy days have at least 1 mm (0.04 in). Any given year can differ.
Cleanup & barriers
- Offshore barriers
- Barriers tried at Mahahual; frequently overwhelmed. Bacalar lagoon receives no sargassum.
- Public cleanup
- Municipal crews and some SEMAR support; far southern Quintana Roo is among the heaviest-hit coasts.
- Resort crews
- Small boutique hotels do hand raking.
- Typical clearing time
- 1–3 days; often overwhelmed at peak
Safety notes
US State Dept: Quintana Roo, Level 2 (exercise increased caution)
- Remote: limited medical facilities (nearest hospital Chetumal).
- Bacalar lagoon stromatolites are protected; no sunscreen or stepping on them.
Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.
Things to do near Bacalar, MX
- Bacalar Lagoon of Seven Colors
- Banco Chinchorro reef
- Chacchoben ruins
- Mahahual malecón
- Xcalak reef park
Fly in for the best beach days
Suggested dates are a week in December. Change them to match the live forecast above.
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Nearest airports
- Chetumal Intl (CTM), ~20 km
Nearby resorts
- Almond Tree Resort and Hotel Corozal, MX · 34 km
- Belizima Eco Resort Xcalak, MX · 44 km
- Almaplena Eco Beach Resort Mahahual, MX · 70 km
- Kabah-na Eco Resort Mahahual, MX · 70 km
- Bougain Villa Mahahual, MX · 71 km
- Mahahual Beach Hotels Mahahual, MX · 72 km
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