Caye Caulker weather in January

In January, Caye Caulker sees average daytime highs of 26°C and overnight lows near 24°C, with 102 mm of rain across 16.2 wet days and about 11.1 hours of daylight. It is the 12th-warmest and 8th-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 56% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 hours at the start of January to 11 h 12 min by month's end. Set against the rest of the year, January is Caye Caulker's 4th-clearest and 7th-windiest month. For the whole year in context, see Caye Caulker's year-round climate.

Daytime high
26°
12th warmest
Overnight low
24°
1st coldest
Rainfall
102 mm
16.2 wet days
Daylight
11 hours
6:30 AM – 5:33 PM
Cloud cover
42%
4th clearest
Wind
22 km/h
7th windiest
Solar energy
4.23 kWh/m²
Travel score
6.2
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 January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical January 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 24°C and 27°C. Set against its neighbours, January runs on par with December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12624
22624
32624
42624
52624
62624
72624
82624
92624
102624
112624
122624
132624
142624
152624
162624
172624
182624
192624
202624
212624
222624
232624
242624
252624
262624
272624
282624
292624
302624
312624

How January really feels in Caye Caulker

Once humidity and wind are folded in, January 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.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

January 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 January compares with the rest of the year at a glance. January is the 12th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 24°10216.211.16.2
Feb26° / 24°439.611.47.1
Mar26° / 25°387.911.97.6
Apr27° / 26°295.712.47.6
May28° / 27°10013.212.86.1
Jun28° / 27°19120.4134.4
Jul28° / 27°14220.7134.6
Aug29° / 27°18022.512.64.2
Sep29° / 27°20624.312.13.8
Oct28° / 26°30023.111.64.4
Nov27° / 25°20319.311.25.3
Dec26° / 24°11018115.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 20% of January, with mostly cloudy or overcast conditions the remaining 23%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37525
47525
57525
67525
77525
87525
97624
107624
117624
127624
137624
147624
157624
167624
177624
187624
197624
207624
217723
227723
237723
247723
257822
267921
277921
288020
298020
308119
318119

Chance of precipitation in January

Any precipitation

Caye Caulker gets around 102 mm of rain over 16.2 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 52% and peaks near 58% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
158
258
358
458
557
657
757
856
956
1055
1155
1254
1354
1453
1552
1652
1751
1851
1950
2050
2149
2248
2348
2447
2547
2647
2746
2846
2945
3045
3145

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the oppressive band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 82% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1131222593
2131222602
3141223582
4141123592
5141124582
6141124591
7151125571
8151126561
9151226551
10151227541
11161227540
12161327530
13161327530
14161427520
15061427530
16061527520
17061527520
18061627510
19051627520
20051627520
21051627520
22041627530
23041627530
24041527540
25041527540
26041427550
27031427560
28031326580
29031226590
30031226590
31031225600

Wind in January

Winds average 22 km/h in January.

Across January, daily wind ranges from about 21 km/h on the calmest days to 22 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
522breezy
622breezy
722breezy
822breezy
922breezy
1022breezy
1122breezy
1222breezy
1322breezy
1422breezy
1522breezy
1622breezy
1722breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 hours at the start of January to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over January. Sunrise moves from 6:27 AM to 6:29 AM, and sunset from 5:24 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:275:24
211.06:275:24
311.06:275:25
411.06:285:26
511.06:285:26
611.06:285:27
711.06:285:27
811.06:295:28
911.06:295:29
1011.06:295:29
1111.06:295:30
1211.06:305:30
1311.06:305:31
1411.06:305:32
1511.06:305:32
1611.06:305:33
1711.16:305:33
1811.16:305:34
1911.16:305:35
2011.16:305:35
2111.16:305:36
2211.16:305:36
2311.16:305:37
2411.16:305:37
2511.16:305:38
2611.16:305:39
2711.26:305:39
2811.26:305:40
2911.26:305:40
3011.26:305:41
3111.26:295:41

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.23 kWh/m².

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 — January's 4.23 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.1Bright
44.1Bright
54.1Bright
64.1Bright
74.1Bright
84.1Bright
94.1Bright
104.1Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.4Bright
244.4Bright
254.4Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.6Bright
314.6Bright
Planning a trip in January

Hazard calendar for Caye Caulker

In seasonPeak

None of Caye Caulker's seasonal hazards are active in January. 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.

Atlantic hurricane
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Caye Caulker?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.2
Sightseeing
4th-best month of the year
5.8
Beach & pool
5th-best month of the year

January is a reasonable time to visit Caye Caulker for sightseeing.

What to pack for Caye Caulker in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Caye Caulker sees daytime highs around 26°C and nights near 24°C. Pack rain gear. Worth having: light clothes and a windbreaker. About 16 days see rain.

rain gearlight clothesa windbreaker

Sea temperature near Caye Caulker in January

The nearest coast averages about 26°C in January — 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.

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar27Warm
Apr28Warm
May29Tropical
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov28Warm
Dec27Warm

UV index in Caye Caulker in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 9 (very high — sun protection essential). 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 10UV 13Dec 16UV 7
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec7Very high

Air quality in Caye Caulker in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January 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).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1131 µg/m³Dec 116 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb10Good
Mar9Good
Apr14Moderate
May19Moderate
Jun30Moderate
Jul31Moderate
Aug22Moderate
Sep14Moderate
Oct9Good
Nov6Good
Dec6Good
Location & terrain

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.

San PedroBelize CityCrooked TreeOrange WalkDangrigaChetumalBelmopanHopkins

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.

3 km
6 m
16 km
8 m
80 km
394 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
January weather nearby: San Pedro 21 km · Belize City 32 km · Crooked Tree 55 km · Orange Walk 68 km · Dangriga 88 km · Chetumal 92 km · Belmopan 95 km · Hopkins 101 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
Roman Catholic 40%Protestant 32%none 16%other 11%

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).