Bacalar Lagoon Weather by Month
Bacalar Lagoon, located in Quintana Roo, Mexico, has a tropical climate with warm temperatures throughout the year and distinct dry and wet seasons. Known for its beautiful turquoise waters, lush surroundings, and outdoor activities, Bacalar is a year-round destination for swimming, kayaking, sailing, and exploring the famous Lagoon of Seven Colors.
Temperatures remain consistently warm, with average daytime highs ranging from 86°F to 94°F (30°C to 34°C). January and February are among the coolest and driest months, while August and September are typically the hottest. The rainy season generally begins in June and continues through October, with October often receiving the heaviest rainfall.
The lagoon stays warm enough for swimming throughout the year, although water temperatures and rainfall vary by season. The following monthly breakdown includes average temperatures, estimated rainfall, water temperature, and daylight hours to help you plan your visit.
Bacalar Lagoon Weather by Month
You can click the image below to view the full-size weather chart for Bacalar Lagoon.
January – Warm, Mild and Relatively Dry
- Average high: 86°F (30°C)
- Average low: 66°F (19°C)
- Rainfall: 1.81 inches (46 mm)
- Water temperature: 78°F (25°C)
- Daylight: 11 hours 8 minutes
January is one of the coolest months in Bacalar, but temperatures remain pleasantly warm throughout the day. Average highs reach around 86°F (30°C), while nighttime temperatures drop to approximately 66°F (19°C). The comfortable weather makes January an excellent time to explore Bacalar Lagoon, take a boat tour, go kayaking, or swim in the beautiful turquoise water.
Rainfall averages approximately 1.81 inches (46 mm), making this one of the relatively dry months of the year. The lagoon has a water temperature of around 78°F (25°C), which is comfortable for swimming and other water activities. With approximately 11 hours of daylight, visitors have plenty of time to enjoy outdoor adventures.
Best for:
- Swimming and kayaking in Bacalar Lagoon
- Taking boat tours and sailing excursions
- Exploring the town of Bacalar
- Enjoying comfortable outdoor sightseeing
February – Warm, Sunny and Very Dry
- Average high: 88°F (31°C)
- Average low: 68°F (21°C)
- Rainfall: 0.98 inches (25 mm)
- Water temperature: 77°F (25°C)
- Daylight: 11 hours 31 minutes
February brings warm temperatures, plenty of sunshine, and some of the driest weather of the year in Bacalar. Average daytime highs reach 88°F (31°C), while nighttime temperatures remain around 68°F (21°C). The combination of warm afternoons and relatively comfortable evenings creates excellent conditions for exploring the lagoon and surrounding natural attractions.
Rainfall averages only about 0.98 inches (25 mm), making February one of the best months for visitors who prefer dry weather. Water temperatures stay around 77°F (25°C), providing pleasant conditions for swimming, paddleboarding, and kayaking. Daylight increases to approximately 11 hours and 31 minutes, giving travelers more time to enjoy the outdoors.
Best for:
- Enjoying sunny lagoon excursions
- Swimming and paddleboarding
- Taking photography tours around the lagoon
- Visiting Cenote Azul and nearby cenotes
March – Hot, Sunny and Dry
- Average high: 89°F (32°C)
- Average low: 71°F (22°C)
- Rainfall: 1.22 inches (31 mm)
- Water temperature: 78°F (25°C)
- Daylight: 12 hours 2 minutes
March is a warm and relatively dry month in Bacalar, with increasing temperatures and longer days. Average highs reach approximately 89°F (32°C), while nighttime lows average 71°F (22°C). The warm, sunny conditions are ideal for spending time on the water, exploring the lagoon’s different shades of blue, and enjoying outdoor activities.
Rainfall remains relatively low at around 1.22 inches (31 mm). The lagoon maintains a comfortable water temperature of approximately 78°F (25°C), making swimming and kayaking enjoyable throughout the month. With more than 12 hours of daylight, March offers plenty of opportunities for sightseeing and water-based adventures.
Best for:
- Exploring the Seven Colors Lagoon
- Swimming and snorkeling
- Kayaking through peaceful lagoon channels
- Enjoying sunny boat excursions
April – Hot, Sunny and Mostly Dry
- Average high: 92°F (33°C)
- Average low: 75°F (24°C)
- Rainfall: 1.65 inches (42 mm)
- Water temperature: 79°F (26°C)
- Daylight: 12 hours 34 minutes
April is one of the hottest months of the dry season in Bacalar. Average daytime temperatures climb to around 92°F (33°C), while nighttime temperatures remain warm at approximately 75°F (24°C). The hot afternoons are perfect for cooling off in the lagoon, although visitors should plan outdoor excursions during the morning or late afternoon to avoid the strongest midday heat.
Rainfall averages approximately 1.65 inches (42 mm), so most days remain suitable for outdoor activities. Water temperatures rise to around 79°F (26°C), making the lagoon especially inviting for swimming and paddleboarding. April also provides approximately 12 hours and 34 minutes of daylight, allowing plenty of time for exploring the surrounding natural scenery.
Best for:
- Swimming in warm lagoon water
- Taking early morning boat tours
- Paddleboarding and kayaking
- Enjoying sunset views over the lagoon
May – Very Hot, Humid and Increasingly Wet
- Average high: 93°F (34°C)
- Average low: 77°F (25°C)
- Rainfall: 3.70 inches (94 mm)
- Water temperature: 82°F (28°C)
- Daylight: 13 hours
May is typically one of the hottest months in Bacalar, with daytime temperatures reaching approximately 93°F (34°C). Nighttime temperatures average around 77°F (25°C), so evenings remain warm and humid. The increasing heat makes swimming, boating, and other water activities particularly appealing.
Rainfall increases to approximately 3.70 inches (94 mm), signaling the transition toward the wetter season. Although occasional tropical showers become more common, many days still offer sunshine. Water temperatures rise to around 82°F (28°C), creating excellent swimming conditions. With approximately 13 hours of daylight, May has some of the longest days of the year.
Best for:
- Swimming and relaxing in the lagoon
- Enjoying water sports and boat excursions
- Exploring cenotes during the morning
- Experiencing warm tropical weather
June – Hot, Humid and Rainy
- Average high: 92°F (33°C)
- Average low: 77°F (25°C)
- Rainfall: 7.20 inches (183 mm)
- Water temperature: 84°F (29°C)
- Daylight: 13 hours 13 minutes
June marks the beginning of the wetter season in Bacalar, bringing frequent tropical showers and higher humidity. Average daytime highs remain around 92°F (33°C), while nighttime temperatures stay near 77°F (25°C). Despite the rainfall, the weather remains warm, and sunny periods are still common between showers.
Rainfall averages approximately 7.20 inches (183 mm), making June one of the wettest months of the year. The lagoon reaches approximately 84°F (29°C), providing very warm swimming conditions. With around 13 hours and 13 minutes of daylight, June has the longest days of the year, although clouds and rain can reduce the amount of sunshine.
Best for:
- Swimming in warm lagoon water
- Enjoying relaxing mornings by the water
- Taking boat trips when weather permits
- Experiencing tropical scenery and lush vegetation
July – Hot, Humid and Showery
- Average high: 93°F (34°C)
- Average low: 77°F (25°C)
- Rainfall: 4.65 inches (118 mm)
- Water temperature: 85°F (30°C)
- Daylight: 13 hours 6 minutes
July is hot and humid in Bacalar, with average daytime temperatures reaching approximately 93°F (34°C). Nighttime temperatures remain around 77°F (25°C), creating warm conditions throughout the day and evening. Although it is part of the rainy season, July can still provide plenty of opportunities for swimming, kayaking, and exploring the lagoon.
Rainfall averages about 4.65 inches (118 mm), generally occurring as intermittent tropical showers. Water temperatures reach approximately 85°F (30°C), making July one of the warmest months for swimming. Daylight lasts around 13 hours and 6 minutes, providing plenty of time for outdoor adventures when the weather cooperates.
Best for:
- Swimming and relaxing in the lagoon
- Kayaking and paddleboarding
- Exploring nearby cenotes
- Enjoying tropical landscapes after rainfall
August – Hottest, Humid and Tropical
- Average high: 94°F (34°C)
- Average low: 77°F (25°C)
- Rainfall: 5.91 inches (150 mm)
- Water temperature: 86°F (30°C)
- Daylight: 12 hours 43 minutes
August is statistically the hottest month in Bacalar, with average daytime highs reaching approximately 94°F (34°C). Nighttime temperatures remain around 77°F (25°C), so warm and humid conditions continue after sunset. The heat makes the lagoon an attractive place to cool off, especially during the afternoon.
Rainfall averages approximately 5.91 inches (150 mm), with tropical showers and thunderstorms possible throughout the month. Water temperatures reach around 86°F (30°C), making August one of the warmest months for swimming and other water activities. Daylight averages approximately 12 hours and 43 minutes, providing ample time for boating and exploring the surrounding attractions.
Best for:
- Swimming in exceptionally warm lagoon water
- Enjoying paddleboarding and kayaking
- Taking relaxing boat excursions
- Experiencing lush tropical scenery
September – Hot, Very Humid and Rainy
- Average high: 94°F (34°C)
- Average low: 76°F (25°C)
- Rainfall: 7.01 inches (178 mm)
- Water temperature: 85°F (30°C)
- Daylight: 12 hours 12 minutes
September remains hot in Bacalar, with average daytime temperatures reaching approximately 94°F (34°C) and nighttime lows around 76°F (25°C). High humidity and frequent tropical rainfall make the weather feel particularly warm. Although outdoor activities are still possible, visitors should be prepared for sudden showers and occasional thunderstorms.
Rainfall averages approximately 7.01 inches (178 mm), making September one of the wettest months of the year. The lagoon remains very warm, with water temperatures around 85°F (30°C). Daylight averages approximately 12 hours and 12 minutes, although cloudy conditions can limit sunshine. Travelers should keep their schedules flexible because heavy rain may affect boat tours and other water activities.
Best for:
- Enjoying warm lagoon swimming when conditions permit
- Experiencing the lush tropical landscape
- Taking relaxing trips around town
- Visiting during a quieter travel period
October – Warm, Humid and Very Wet
- Average high: 92°F (33°C)
- Average low: 73°F (23°C)
- Rainfall: 6.14 inches (156 mm)
- Water temperature: 84°F (29°C)
- Daylight: 11 hours 41 minutes
October brings slightly cooler temperatures to Bacalar, although the weather remains warm and humid. Average daytime highs reach approximately 92°F (33°C), while nighttime temperatures fall to around 73°F (23°C). The tropical atmosphere continues, and occasional heavy showers can interrupt outdoor plans.
Rainfall averages approximately 6.14 inches (156 mm), keeping October among the wetter months of the year. The lagoon has an average water temperature of around 84°F (29°C), which remains comfortable for swimming. Daylight decreases to approximately 11 hours and 41 minutes as the year progresses. Visitors should check local weather conditions before arranging boat tours or extended water excursions.
Best for:
- Swimming and relaxing by the lagoon
- Exploring Bacalar’s natural attractions
- Enjoying warm tropical temperatures
- Taking boat excursions during dry periods
November – Warm, Pleasant and Gradually Drier
- Average high: 89°F (32°C)
- Average low: 69°F (22°C)
- Rainfall: 3.07 inches (78 mm)
- Water temperature: 82°F (28°C)
- Daylight: 11 hours 14 minutes
November marks the transition toward the drier season in Bacalar. Average daytime temperatures reach approximately 89°F (32°C), while nighttime lows drop to around 69°F (22°C). The slightly cooler evenings and decreasing rainfall make November a comfortable month for exploring the destination.
Rainfall averages approximately 3.07 inches (78 mm), considerably less than during the peak rainy season. Water temperatures remain warm at around 82°F (28°C), making swimming, kayaking, and paddleboarding enjoyable. With approximately 11 hours and 14 minutes of daylight, visitors still have plenty of time to explore the lagoon and surrounding attractions.
Best for:
- Taking boat tours around Bacalar Lagoon
- Swimming and kayaking
- Exploring the town and nearby cenotes
- Enjoying more comfortable outdoor temperatures
December – Mild, Warm and Relatively Dry
- Average high: 87°F (31°C)
- Average low: 67°F (21°C)
- Rainfall: 1.97 inches (50 mm)
- Water temperature: 79°F (26°C)
- Daylight: 11 hours
December brings pleasant tropical weather to Bacalar, with warm afternoons and relatively comfortable evenings. Average daytime highs reach approximately 87°F (31°C), while nighttime temperatures fall to around 67°F (21°C). The reduced humidity and generally drier conditions make this an excellent month for outdoor sightseeing and lagoon activities.
Rainfall averages approximately 1.97 inches (50 mm), making December one of the drier months of the year. Water temperatures remain comfortable at around 79°F (26°C), allowing visitors to enjoy swimming and other water sports. With approximately 11 hours of daylight, December offers good conditions for exploring the lagoon, visiting cenotes, and enjoying the beautiful natural scenery.
Best for:
- Swimming and kayaking in the lagoon
- Taking boat tours and sailing excursions
- Exploring cenotes and natural attractions
- Enjoying pleasant winter sunshine
Bacalar Lagoon Weather by Month
| Month | Avg High °F (°C) | Avg Low °F (°C) | Rainfall (inches) | Water Temperature (°F) | Daylight (hours) |
|---|---|---|---|---|---|
| January | 86 (30) | 66 (19) | 1.81 | 78 | 11.1 |
| February | 88 (31) | 68 (21) | 0.98 | 77 | 11.5 |
| March | 89 (32) | 71 (22) | 1.22 | 78 | 12.0 |
| April | 92 (33) | 75 (24) | 1.65 | 79 | 12.6 |
| May | 93 (34) | 77 (25) | 3.70 | 82 | 13.0 |
| June | 92 (33) | 77 (25) | 7.20 | 84 | 13.2 |
| July | 93 (34) | 77 (25) | 4.65 | 85 | 13.1 |
| August | 94 (34) | 77 (25) | 5.91 | 86 | 12.7 |
| September | 94 (34) | 76 (25) | 7.01 | 85 | 12.2 |
| October | 92 (33) | 73 (23) | 6.14 | 84 | 11.7 |
| November | 89 (32) | 69 (22) | 3.07 | 82 | 11.2 |
| December | 87 (31) | 67 (21) | 1.97 | 79 | 11.0 |
20 Frequently Asked Questions About Bacalar Lagoon Weather
1. What is the best month to visit Bacalar Lagoon?
February and March are among the best months to visit Bacalar Lagoon. These months offer warm temperatures, relatively low rainfall, comfortable evenings, and plenty of sunshine for swimming, kayaking, and boat tours.
2. What is the weather like in Bacalar Lagoon year-round?
Bacalar Lagoon has a tropical climate with warm temperatures throughout the year. Average daytime highs range from 86°F to 94°F (30°C to 34°C), while nighttime lows generally range from 66°F to 77°F (19°C to 25°C). The area has a distinct dry season and rainy season.
3. What is the hottest month in Bacalar?
August and September are typically the hottest months in Bacalar, with average daytime highs around 94°F (34°C). High humidity can make the weather feel even hotter.
4. What is the coldest month in Bacalar?
January is generally the coolest month, with average daytime highs of 86°F (30°C) and nighttime lows around 66°F (19°C). Even during winter, temperatures remain warm and pleasant.
5. When is the rainy season in Bacalar?
The rainy season generally runs from June through October. During this period, tropical showers, thunderstorms, and higher humidity are common, particularly in September and October.
6. When is the dry season in Bacalar?
The dry season typically lasts from December through April. February and March are particularly dry, making them excellent months for outdoor activities and exploring the lagoon.
7. What is the rainiest month in Bacalar?
September is typically one of the wettest months, with approximately 7.01 inches of rainfall. June is also very wet, averaging around 7.20 inches in the climate estimates used in this article.
8. Does it rain all day in Bacalar during the rainy season?
No. Rainfall often occurs in short tropical showers or afternoon thunderstorms rather than lasting throughout the entire day. However, prolonged rain can occur, so it is helpful to keep outdoor plans flexible.
9. What is the average water temperature in Bacalar Lagoon?
Water temperatures generally range from approximately 77°F to 86°F (25°C to 30°C) throughout the year. The lagoon is warm enough for swimming in every season.
10. What is the best month for swimming in Bacalar Lagoon?
April through August is excellent for visitors who prefer especially warm water. August typically has the warmest water temperatures, averaging around 86°F (30°C).
11. Is Bacalar Lagoon warm enough to swim in during January?
Yes. January water temperatures average approximately 78°F (25°C), which is generally comfortable for swimming, kayaking, and other water activities.
12. Is Bacalar too hot in the summer?
Bacalar can feel very hot and humid during summer, particularly from May through September. Daytime temperatures frequently reach 92°F–94°F (33°C–34°C). Swimming and planning outdoor activities in the morning or late afternoon can make the heat easier to manage.
13. What is the most humid month in Bacalar?
September is generally among the most humid months because it falls within the peak rainy season. High temperatures combined with frequent rainfall can make outdoor activities feel more uncomfortable.
14. Does Bacalar experience hurricanes?
Yes. Bacalar is located in Quintana Roo, a region that can be affected by tropical storms and hurricanes in the Atlantic and Caribbean hurricane season, which officially runs from June through November. September and October are particularly important months to monitor forecasts.
15. Is December a good time to visit Bacalar?
Yes. December is an excellent month to visit because rainfall decreases, temperatures become slightly cooler, and outdoor conditions are generally pleasant. It is a good time for lagoon excursions, swimming, and sightseeing.
16. What is the best time to visit Bacalar for kayaking and paddleboarding?
December through April is generally ideal for kayaking and paddleboarding because rainfall is lower and weather conditions are often more predictable. Early mornings are especially pleasant.
17. How many hours of daylight does Bacalar have?
Bacalar receives approximately 11 to 13 hours of daylight throughout the year. June has the longest days, with approximately 13 hours and 13 minutes of daylight, while December has around 11 hours.
18. What should I pack for Bacalar’s weather?
Pack lightweight clothing, swimsuits, sandals, sunglasses, sunscreen, a hat, and insect repellent. During the rainy season, bring a lightweight rain jacket or umbrella. Quick-drying clothes are particularly useful for lagoon activities.
19. Is November a good month to visit Bacalar?
Yes. November is a good shoulder-season month because rainfall begins to decrease and temperatures become more comfortable. Average daytime highs are around 89°F (32°C), making it suitable for swimming and outdoor exploration.
20. What is the worst month to visit Bacalar Lagoon?
September is often one of the least favorable months for visitors who prioritize sunny weather. It is hot, humid, and rainy, with increased chances of tropical storms. However, travelers who do not mind occasional rain may still enjoy the lagoon and its surrounding attractions.
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