Great Blue Hole Great blue hole
Belize UNESCO World Heritage Site

The Great Blue Hole is a blue hole and natural monument located in the Belize District of Belize. It is part of the Belize Barrier Reef and is a UNESCO World Heritage Site. It is one of the most looked-up sights in Belize.
Planning a visit
The site is open 24/7. Average temperatures range from 25 °C to 28 °C throughout the year. Precipitation varies significantly, with April being the driest month, receiving 26 mm of rain over about 7 days, and October being the wettest, with 315 mm of rain over about 26 days.
The nearest airport is Caye Chapel Airport in Caye Chapel, located 68 km away, while the major hub is Philip S. W. Goldson International Airport in Belize City, 85 km away. The sight is 131 km from the capital, Belmopan.
Weather by month
The warmest month is August, averaging 28 °C. The wettest is October, with about 315 mm of rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average temperature, °C | 25 | 25 | 26 | 26 | 27 | 28 | 27 | 28 | 27 | 27 | 26 | 25 |
| Rainfall, mm | 153 | 68 | 48 | 26 | 75 | 154 | 147 | 155 | 205 | 315 | 259 | 175 |
| Rainy days | 17 | 11 | 10 | 7 | 15 | 25 | 26 | 26 | 26 | 26 | 21 | 22 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.