Ambergris Caye — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Ambergris Caye (Belize). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Ambergris Caye help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Ambergris Caye in the Caribbean Sea today is 85°F.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Water temperature in Ambergris Caye has risen over the last week and month. Currently, the sea water temperature at this location matches the average for this day in previous years.
According to our forecast, Water temperature in Ambergris Caye will be 84°F in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| MAY 9 | 84°F | 83°F | |
| MAY 10 | 84°F | 84°F | |
| MAY 11 | 84°F | 84°F | |
| MAY 12 | 84°F | 84°F | |
| MAY 13 | 84°F | 84°F | |
| MAY 14 | 85°F | 83°F | |
| MAY 15 | 85°F | 84°F | |
| MAY 16 | 85°F | 85°F | |
| MAY 17 | 85°F | 85°F | 85°F |
| MAY 18 | 83°F | 85°F | |
| MAY 19 | 83°F | 85°F | |
| MAY 20 | 84°F | 85°F | |
| MAY 21 | 83°F | 84°F | |
| MAY 22 | 84°F | 84°F | |
| MAY 23 | 83°F | 84°F | |
| MAY 24 | 84°F | 84°F |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Ambergris Caye, the largest island of Belize, lies along the western edge of the Caribbean Sea and is famed for its proximity to the Belize Barrier Reef. Sea temperatures here are generally warm year-round, making it an attractive destination for water activities. Seasonal water temperature ranges typically run from about 26–27°C in the coolest months of December to February, rising to 27–29°C in spring (March–May). In the summer months (June–August) sea temperatures commonly reach 28–30°C, and in autumn (September–November) they usually sit around 27–29°C. Because the water seldom drops below the mid-20s °C, visitors can expect comfortable swimming conditions across most months, with the warmest water occurring in late summer.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 75°F | 79°F | 84°F |
| February | 75°F | 79°F | 82°F |
| March | 77°F | 81°F | 84°F |
| April | 79°F | 82°F | 84°F |
| May | 81°F | 83°F | 88°F |
| June | 81°F | 84°F | 88°F |
| July | 82°F | 84°F | 88°F |
| August | 82°F | 85°F | 88°F |
| September | 81°F | 85°F | 90°F |
| October | 81°F | 85°F | 90°F |
| November | 79°F | 83°F | 86°F |
| December | 77°F | 81°F | 84°F |
* Click on a month to view detailed water temperature data.
Ambergris Caye: Weather Forecast
May 18
May 19
May 20
May 21
Location, Beaches & Local Information
Nearby Beaches & Facilities
Secret Beach
Ambergris Caye Southeast
Hidden Beach
Debbie's Beach
Bermuda Beach
Blackadore Caye
Swimming Conditions
Swimming and beach holidays on Ambergris Caye cater to a range of preferences, from gentle shoreline bathing to snorkeling and diving along the reef. The western side of the island faces a sheltered lagoon and tends to offer calmer, shallow water ideal for families and casual swimmers, while the reef a short boat ride offshore provides clearer, cooler water with excellent visibility for snorkeling and scuba. Seasonal factors such as brief rainy periods and the Atlantic hurricane season (June–November) can influence surface conditions and visibility, so checking local forecasts is wise. Overall, the consistently warm sea temperatures make Ambergris Caye well suited for extended time in the water, whether you prefer floating near sandy shallows, exploring coral formations, or enjoying guided marine excursions.