Caye Caulker weather in December
In December, Caye Caulker sees average daytime highs of 26°C and overnight lows near 24°C, with 110 mm of rain across 18 wet days and about 11 hours of daylight. It is the 10th-warmest and 7th-wettest month of the year here.
Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 54% of the time in December, and the air most often feels oppressive.
Daylight stretches from about 11 hours at the start of December to 11 hours by month's end. Set against the rest of the year, December is Caye Caulker's 5th-clearest and 8th-windiest month. For the whole year in context, see Caye Caulker's year-round climate.
- Daytime high
- 26°
- 10th warmest
- Overnight low
- 24°
- 2nd coldest
- Rainfall
- 110 mm
- 18 wet days
- Daylight
- 10 h 54 min
- 6:20 AM – 5:17 PM
- Cloud cover
- 43%
- 5th clearest
- Wind
- 20 km/h
- 8th windiest
- Solar energy
- 4.09 kWh/m²
- Travel score
- 5.8
- out of 10
Caye Caulker is island.
- Density
- 693/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Day-to-day highs hold fairly steady near 26°C through the month.
A typical December day in Caye Caulker reaches about 26°C in the afternoon and slips back to 24°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 27°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 26 | 25 |
| 2 | 26 | 25 |
| 3 | 26 | 25 |
| 4 | 26 | 25 |
| 5 | 26 | 25 |
| 6 | 26 | 25 |
| 7 | 26 | 25 |
| 8 | 26 | 25 |
| 9 | 26 | 24 |
| 10 | 26 | 24 |
| 11 | 26 | 24 |
| 12 | 26 | 24 |
| 13 | 26 | 24 |
| 14 | 26 | 24 |
| 15 | 26 | 24 |
| 16 | 26 | 24 |
| 17 | 26 | 24 |
| 18 | 26 | 24 |
| 19 | 26 | 24 |
| 20 | 26 | 24 |
| 21 | 26 | 24 |
| 22 | 26 | 24 |
| 23 | 26 | 24 |
| 24 | 26 | 24 |
| 25 | 26 | 24 |
| 26 | 26 | 24 |
| 27 | 26 | 24 |
| 28 | 26 | 24 |
| 29 | 26 | 24 |
| 30 | 26 | 24 |
| 31 | 26 | 24 |
How December really feels in Caye Caulker
Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Caye Caulker weather by month
How December compares with the rest of the year at a glance. December is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 24° | 102 | 16.2 | 11.1 | 6.2 |
| Feb | 26° / 24° | 43 | 9.6 | 11.4 | 7.1 |
| Mar | 26° / 25° | 38 | 7.9 | 11.9 | 7.6 |
| Apr | 27° / 26° | 29 | 5.7 | 12.4 | 7.6 |
| May | 28° / 27° | 100 | 13.2 | 12.8 | 6.1 |
| Jun | 28° / 27° | 191 | 20.4 | 13 | 4.4 |
| Jul | 28° / 27° | 142 | 20.7 | 13 | 4.6 |
| Aug | 29° / 27° | 180 | 22.5 | 12.6 | 4.2 |
| Sep | 29° / 27° | 206 | 24.3 | 12.1 | 3.8 |
| Oct | 28° / 26° | 300 | 23.1 | 11.6 | 4.4 |
| Nov | 27° / 25° | 203 | 19.3 | 11.2 | 5.3 |
| Dec | 26° / 24° | 110 | 18 | 11 | 5.8 |
Cloud cover in December
The sky is clear or mostly clear about 54% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 27%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 70 | 71 | 71 | 72 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 73 | 73 | 74 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
| Cloudier (%) | 30 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 70 | 30 |
| 2 | 71 | 29 |
| 3 | 71 | 29 |
| 4 | 72 | 28 |
| 5 | 73 | 27 |
| 6 | 73 | 27 |
| 7 | 73 | 27 |
| 8 | 73 | 27 |
| 9 | 73 | 27 |
| 10 | 73 | 27 |
| 11 | 73 | 27 |
| 12 | 73 | 27 |
| 13 | 72 | 28 |
| 14 | 72 | 28 |
| 15 | 72 | 28 |
| 16 | 72 | 28 |
| 17 | 72 | 28 |
| 18 | 72 | 28 |
| 19 | 72 | 28 |
| 20 | 72 | 28 |
| 21 | 73 | 27 |
| 22 | 73 | 27 |
| 23 | 74 | 26 |
| 24 | 75 | 25 |
| 25 | 75 | 25 |
| 26 | 75 | 25 |
| 27 | 75 | 25 |
| 28 | 75 | 25 |
| 29 | 75 | 25 |
| 30 | 75 | 25 |
| 31 | 75 | 25 |
Chance of precipitation in December
Caye Caulker gets around 110 mm of rain over 18 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 58% and peaks near 60% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 60 | 60 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 58 | 58 | 58 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 58 | 58 | 58 | 58 | 58 | 58 |
| Rain chance (%) | |
|---|---|
| 1 | 60 |
| 2 | 60 |
| 3 | 60 |
| 4 | 60 |
| 5 | 60 |
| 6 | 59 |
| 7 | 59 |
| 8 | 59 |
| 9 | 59 |
| 10 | 59 |
| 11 | 58 |
| 12 | 58 |
| 13 | 58 |
| 14 | 57 |
| 15 | 57 |
| 16 | 57 |
| 17 | 57 |
| 18 | 57 |
| 19 | 57 |
| 20 | 57 |
| 21 | 57 |
| 22 | 57 |
| 23 | 57 |
| 24 | 57 |
| 25 | 57 |
| 26 | 58 |
| 27 | 58 |
| 28 | 58 |
| 29 | 58 |
| 30 | 58 |
| 31 | 58 |
Humidity in December
Most of December feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the oppressive band about 60% of days. Sticky, muggy-or-worse air turns up on roughly 86% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 |
| Comfortable (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Humid (%) | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Muggy (%) | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 22 |
| Oppressive (%) | 61 | 61 | 62 | 62 | 63 | 63 | 63 | 62 | 63 | 63 | 62 | 63 | 62 | 62 | 61 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 60 | 60 | 59 | 59 | 59 | 60 | 60 | 59 |
| Miserable (%) | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 0 | 2 | 7 | 24 | 61 | 6 |
| 2 | 0 | 2 | 7 | 24 | 61 | 6 |
| 3 | 0 | 2 | 7 | 23 | 62 | 6 |
| 4 | 0 | 2 | 7 | 23 | 62 | 6 |
| 5 | 0 | 2 | 7 | 23 | 63 | 5 |
| 6 | 0 | 2 | 8 | 22 | 63 | 5 |
| 7 | 0 | 2 | 8 | 22 | 63 | 5 |
| 8 | 0 | 3 | 8 | 22 | 62 | 5 |
| 9 | 0 | 3 | 9 | 21 | 63 | 4 |
| 10 | 0 | 3 | 9 | 21 | 63 | 4 |
| 11 | 0 | 3 | 10 | 21 | 62 | 4 |
| 12 | 0 | 3 | 10 | 21 | 63 | 3 |
| 13 | 0 | 3 | 10 | 21 | 62 | 3 |
| 14 | 0 | 4 | 10 | 21 | 62 | 3 |
| 15 | 0 | 4 | 10 | 22 | 61 | 3 |
| 16 | 0 | 4 | 11 | 22 | 60 | 3 |
| 17 | 0 | 4 | 11 | 22 | 60 | 3 |
| 18 | 0 | 4 | 11 | 22 | 60 | 3 |
| 19 | 0 | 4 | 12 | 22 | 59 | 3 |
| 20 | 0 | 4 | 12 | 22 | 59 | 3 |
| 21 | 0 | 4 | 12 | 22 | 59 | 3 |
| 22 | 0 | 3 | 12 | 22 | 59 | 3 |
| 23 | 0 | 3 | 12 | 22 | 59 | 3 |
| 24 | 0 | 3 | 12 | 22 | 60 | 3 |
| 25 | 0 | 3 | 12 | 22 | 60 | 3 |
| 26 | 1 | 3 | 12 | 22 | 59 | 3 |
| 27 | 1 | 3 | 12 | 22 | 59 | 3 |
| 28 | 1 | 3 | 12 | 22 | 59 | 3 |
| 29 | 1 | 3 | 12 | 21 | 60 | 3 |
| 30 | 1 | 3 | 12 | 21 | 60 | 3 |
| 31 | 1 | 3 | 12 | 22 | 59 | 3 |
Wind in December
Winds average 20 km/h in December.
Across December, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 20 | light breeze |
| 2 | 20 | light breeze |
| 3 | 20 | light breeze |
| 4 | 20 | light breeze |
| 5 | 20 | light breeze |
| 6 | 20 | light breeze |
| 7 | 20 | light breeze |
| 8 | 20 | light breeze |
| 9 | 20 | light breeze |
| 10 | 20 | light breeze |
| 11 | 20 | light breeze |
| 12 | 20 | light breeze |
| 13 | 20 | light breeze |
| 14 | 20 | light breeze |
| 15 | 20 | light breeze |
| 16 | 20 | light breeze |
| 17 | 20 | light breeze |
| 18 | 20 | breezy |
| 19 | 20 | breezy |
| 20 | 20 | breezy |
| 21 | 20 | breezy |
| 22 | 20 | breezy |
| 23 | 21 | breezy |
| 24 | 21 | breezy |
| 25 | 21 | breezy |
| 26 | 21 | breezy |
| 27 | 21 | breezy |
| 28 | 21 | breezy |
| 29 | 21 | breezy |
| 30 | 21 | breezy |
| 31 | 21 | breezy |
Sunrise & sunset in December
Daylight runs from about 11 hours at the start of December to 11 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 0 minutes over December. Sunrise moves from 6:11 AM to 6:27 AM, and sunset from 5:12 PM to 5:24 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 11.0 |
| Sunrise (AM) | 6:11 | 6:12 | 6:13 | 6:13 | 6:14 | 6:14 | 6:15 | 6:16 | 6:16 | 6:17 | 6:17 | 6:18 | 6:18 | 6:19 | 6:19 | 6:20 | 6:20 | 6:21 | 6:22 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 | 6:25 | 6:26 | 6:26 | 6:26 | 6:27 |
| Sunset (PM) | 5:12 | 5:12 | 5:13 | 5:13 | 5:13 | 5:13 | 5:14 | 5:14 | 5:14 | 5:14 | 5:15 | 5:15 | 5:15 | 5:16 | 5:16 | 5:17 | 5:17 | 5:17 | 5:18 | 5:18 | 5:19 | 5:19 | 5:20 | 5:20 | 5:21 | 5:21 | 5:22 | 5:22 | 5:23 | 5:23 | 5:24 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.0 | 6:11 | 5:12 |
| 2 | 11.0 | 6:12 | 5:12 |
| 3 | 11.0 | 6:13 | 5:13 |
| 4 | 11.0 | 6:13 | 5:13 |
| 5 | 11.0 | 6:14 | 5:13 |
| 6 | 11.0 | 6:14 | 5:13 |
| 7 | 11.0 | 6:15 | 5:14 |
| 8 | 11.0 | 6:16 | 5:14 |
| 9 | 11.0 | 6:16 | 5:14 |
| 10 | 11.0 | 6:17 | 5:14 |
| 11 | 11.0 | 6:17 | 5:15 |
| 12 | 11.0 | 6:18 | 5:15 |
| 13 | 11.0 | 6:18 | 5:15 |
| 14 | 10.9 | 6:19 | 5:16 |
| 15 | 10.9 | 6:19 | 5:16 |
| 16 | 10.9 | 6:20 | 5:17 |
| 17 | 10.9 | 6:20 | 5:17 |
| 18 | 10.9 | 6:21 | 5:17 |
| 19 | 10.9 | 6:22 | 5:18 |
| 20 | 10.9 | 6:22 | 5:18 |
| 21 | 10.9 | 6:22 | 5:19 |
| 22 | 10.9 | 6:23 | 5:19 |
| 23 | 10.9 | 6:23 | 5:20 |
| 24 | 10.9 | 6:24 | 5:20 |
| 25 | 10.9 | 6:24 | 5:21 |
| 26 | 10.9 | 6:25 | 5:21 |
| 27 | 10.9 | 6:25 | 5:22 |
| 28 | 10.9 | 6:26 | 5:22 |
| 29 | 10.9 | 6:26 | 5:23 |
| 30 | 10.9 | 6:26 | 5:23 |
| 31 | 11.0 | 6:27 | 5:24 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 4.09 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 4.09 kWh/m² to a high of 6.63 kWh/m² in April across the year — December's 4.09 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.1 | Bright |
| 2 | 4.1 | Bright |
| 3 | 4.1 | Bright |
| 4 | 4.1 | Bright |
| 5 | 4.1 | Bright |
| 6 | 4.1 | Bright |
| 7 | 4.1 | Bright |
| 8 | 4.1 | Bright |
| 9 | 4.1 | Bright |
| 10 | 4.1 | Bright |
| 11 | 4.1 | Bright |
| 12 | 4.1 | Bright |
| 13 | 4.1 | Bright |
| 14 | 4.1 | Bright |
| 15 | 4.0 | Bright |
| 16 | 4.0 | Bright |
| 17 | 4.0 | Bright |
| 18 | 4.0 | Bright |
| 19 | 4.0 | Bright |
| 20 | 4.0 | Bright |
| 21 | 4.0 | Bright |
| 22 | 4.0 | Bright |
| 23 | 4.1 | Bright |
| 24 | 4.1 | Bright |
| 25 | 4.1 | Bright |
| 26 | 4.1 | Bright |
| 27 | 4.1 | Bright |
| 28 | 4.1 | Bright |
| 29 | 4.1 | Bright |
| 30 | 4.1 | Bright |
| 31 | 4.1 | Bright |
Hazard calendar for Caye Caulker
None of Caye Caulker's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Caye Caulker sits in the Atlantic hurricane belt; the season peaks August–October.
Caye Caulker's rainy season runs June–November, when most of the year's rain falls.
Is December a good time to visit Caye Caulker?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit Caye Caulker for sightseeing.
What to pack for Caye Caulker in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Caye Caulker sees daytime highs around 26°C and nights near 24°C. Pack rain gear. Worth having: light clothes. About 18 days see rain.
Sea temperature near Caye Caulker in December
The nearest coast averages about 27°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 19 km away) is warmest in September at about 30°C and coldest in January near 26°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 26 | 26 | 27 | 28 | 29 | 29 | 29 | 30 | 30 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 26 | Warm |
| Mar | 27 | Warm |
| Apr | 28 | Warm |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Warm |
| Dec | 27 | Warm |
UV index in Caye Caulker in December
Clear-sky midday UV in December peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Caye Caulker peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 9 | 11 | 13 | 13 | 11 | 12 | 12 | 12 | 12 | 11 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | Very high |
Air quality in Caye Caulker in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Caye Caulker is worst in July — around 31 µg/m³ PM2.5 (moderate), about 5.0× the cleanest month (December, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 7 | 10 | 9 | 14 | 19 | 30 | 31 | 22 | 14 | 9 | 6 | 6 |
| Level | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 10 | Good |
| Mar | 9 | Good |
| Apr | 14 | Moderate |
| May | 19 | Moderate |
| Jun | 30 | Moderate |
| Jul | 31 | Moderate |
| Aug | 22 | Moderate |
| Sep | 14 | Moderate |
| Oct | 9 | Good |
| Nov | 6 | Good |
| Dec | 6 | Good |
Where is Caye Caulker?
Caye Caulker sits at 17.7°N, 88.0°W, 0 m above sea level, in Belize. The nearest listed city is San Pedro, 21 km away.
Topography around Caye Caulker
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Caye Caulker.
Within 3 km, the terrain around Caye Caulker has only modest variations in elevation — a maximum elevation change of 6 m around an average of 0 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 8 m; within 80 km, significant variations in elevation — a maximum elevation change of 394 m.
The land around Caye Caulker is covered by water (93%) within 3 km, water (97%) within 16 km, and water (63%) and trees (21%) within 80 km.
Belize travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / G
- 110 / 220 V · 60 Hz
- Prices
- ≈ 53% of US
- price level, 2025
- GDP per capita
- $7,865
- 2025
- Happiness
- 6.7 / 10
- World Happiness, 2025
- Homicide rate
- 28.1
- per 100k, 2022
- Road deaths
- 22.6
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Caye Caulker (17.7366°, -88.0276°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).