Caye Caulker weather by month & the best time to visit
Belize · beach resort · tropical monsoon climate

The best time to visit Caye Caulker is April — its sunniest month (Sunshine Score 87/100), with March and February close behind. Caye Caulker averages about 2,402 hours of sunshine a year. Daytime highs around 29°C / 84°F and roughly 34 mm of rain in April.
When is the best time to visit Caye Caulker?
For sunshine, the best time to visit Caye Caulker is April, then March and February. The dullest month is June (65/100, 224 mm of rain). The full month-by-month picture is in the table below.
How sunny is Caye Caulker?
Caye Caulker gets a moderate 2,402 hours of sunshine a year. April (87/100) is noticeably better than June (65). It ranks #8 of 9 destinations in Belize for annual sunshine, below the national median of 2,452 hours. The year's 1,673 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 72 | 26° / 79°F | 23° / 73°F | 115 mm | 7 | 27° / 81°F |
| February | 82 | 27° / 81°F | 24° / 75°F | 58 mm | 8 | 27° / 81°F |
| March | 85 | 28° / 82°F | 24° / 75°F | 46 mm | 10 | 29° / 84°F |
| April | 87 | 29° / 84°F | 25° / 77°F | 34 mm | 10 | 29° / 84°F |
| May | 70 | 30° / 86°F | 26° / 79°F | 127 mm | 10 | 30° / 86°F |
| June | 65 | 29° / 84°F | 27° / 81°F | 224 mm | 9 | 31° / 88°F |
| July | 65 | 29° / 84°F | 27° / 81°F | 152 mm | 9 | 30° / 86°F |
| August | 65 | 30° / 86°F | 27° / 81°F | 167 mm | 10 | 31° / 88°F |
| September | 65 | 30° / 86°F | 27° / 81°F | 184 mm | 9 | 31° / 88°F |
| October | 65 | 29° / 84°F | 26° / 79°F | 250 mm | 8 | 30° / 86°F |
| November | 65 | 27° / 81°F | 25° / 77°F | 184 mm | 7 | 29° / 84°F |
| December | 69 | 27° / 81°F | 24° / 75°F | 132 mm | 6 | 27° / 81°F |
Sea temperature in Caye Caulker by month
The sea off Caye Caulker is warmest in June at around 31°C / 88°F, and coolest in January at 27°C / 81°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Caye Caulker: questions and answers
What kind of destination is Caye Caulker?
Caye Caulker is a beach resort in Belize with a tropical monsoon climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Caye Caulker get a year?
Caye Caulker gets about 2,402 hours of sunshine a year, at its best around April.
When is the best time to visit Caye Caulker?
The sunniest time to visit Caye Caulker is April, when the Sunshine Score peaks at 87/100 (with March and February close behind). Expect daytime highs around 29°C / 84°F.
What is the least sunny month in Caye Caulker?
June is the least sunny month in Caye Caulker, scoring 65/100 with about 224 mm of rain.
What is the sea temperature in Caye Caulker?
The sea in Caye Caulker ranges from about 27°C (January) to 31°C (June). Month-by-month sea temperatures are on this page.
How strong is the sun in Caye Caulker?
The typical midday UV index in Caye Caulker peaks around 10 (very high) in March, easing to about 6 (high) in December. Month-by-month midday UV values are in the UV column of the table on this page.
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