Belize weather in December

In December, Belize sees average daytime highs of 29°C and overnight lows near 22°C, with 264 mm of rain across 28.3 wet days and about 12.3 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 0% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of December to 12 h 18 min by month's end. Set against the rest of the year, December is Belize's 10th-clearest and 10th-windiest month. For the whole year in context, see Belize's year-round climate.

Daytime high
29°
6th warmest
Overnight low
22°
9th coldest
Rainfall
264 mm
28.3 wet days
Daylight
12 h 18 min
5:57 AM – 6:13 PM
Cloud cover
87%
10th clearest
Wind
4 km/h
10th windiest
Solar energy
4.05 kWh/m²
Travel score
3.1
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Belize reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12922
22922
32922
42922
52922
62922
72922
82922
92922
102922
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922
312922

How December really feels in Belize

Once humidity and wind are folded in, December averages 24 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
24
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Belize weather by month

How December compares with the rest of the year at a glance. December is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°22326.812.23.1
Feb30° / 23°17922.612.23.2
Mar30° / 23°17223.8123.2
Apr30° / 23°18724.111.93.2
May29° / 22°9717.611.84.5
Jun26° / 19°92.411.77.3
Jul25° / 18°51.411.87.6
Aug25° / 18°9311.87.2
Sep26° / 20°207.5126.3
Oct28° / 22°10521.712.14.0
Nov29° / 22°23026.912.23.1
Dec29° / 22°26428.312.33.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 3% of December, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1397
2397
3397
4397
5397
6397
7397
8397
9397
10397
11298
12298
13298
14397
15397
16397
17397
18397
19397
20397
21397
22397
23397
24496
25496
26496
27496
28496
29496
30496
31496

Chance of precipitation in December

Any precipitation

Belize gets around 264 mm of rain over 28.3 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 91% and peaks near 91% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
191
291
391
491
591
691
791
891
991
1091
1190
1290
1390
1490
1590
1691
1791
1891
1991
2091
2191
2291
2391
2491
2591
2691
2791
2891
2991
3091
3191

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
13970
22980
32980
42980
52980
61990
71990
81990
91990
101990
111990
121990
131990
141990
151990
161990
171981
181981
191981
202971
212971
222971
232971
242971
253961
263961
273961
283961
293961
303961
313952

Wind in December

Winds average 4 km/h in December.

Across December, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 18 min at the start of December to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 5:51 AM to 6:04 AM, and sunset from 6:06 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:516:06
212.35:526:07
312.35:526:07
412.35:526:08
512.35:536:08
612.35:536:08
712.35:536:09
812.35:546:09
912.35:546:10
1012.35:546:10
1112.35:556:11
1212.35:556:11
1312.35:566:12
1412.35:566:12
1512.35:576:13
1612.35:576:13
1712.35:586:14
1812.35:586:14
1912.35:586:15
2012.35:596:15
2112.35:596:16
2212.36:006:16
2312.36:006:16
2412.36:016:17
2512.36:016:17
2612.36:026:18
2712.36:026:18
2812.36:036:19
2912.36:036:19
3012.36:046:20
3112.36:046:20

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.05 kWh/m².

For context, solar energy here swings from a low near 3.03 kWh/m² to a high of 4.72 kWh/m² in March across the year — December's 4.05 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Bright
44.0Bright
54.0Bright
64.0Bright
74.0Bright
84.0Bright
94.0Bright
104.0Bright
114.1Bright
124.1Bright
134.1Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.1Bright
234.1Bright
244.1Bright
254.1Bright
264.1Bright
274.1Bright
284.1Bright
294.1Bright
304.1Bright
314.2Bright
Planning a trip in December

Hazard calendar for Belize

In seasonPeak

In December, Belize sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Belize's rainy season runs November–April, when most of the year's rain falls.

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

Is December a good time to visit Belize?

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

3.1
Sightseeing
10th-best month of the year
3.9
Beach & pool
12th-best month of the year

December is a weaker month for outdoor sightseeing in Belize.

What to pack for Belize in December

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

In December, Belize sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

UV index in Belize in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Belize peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeMar 16UV 15Jun 23UV 7
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar15Extreme
Apr13Extreme
May9Very high
Jun7High
Jul7High
Aug7High
Sep10Very high
Oct13Extreme
Nov10Extreme
Dec10Extreme

Air quality in Belize in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Belize is worst in July — around 48 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (October, 21 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1547 µg/m³Oct 2421 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb28Moderate
Mar25Moderate
Apr25Moderate
May33Moderate
Jun41Poor
Jul48Poor
Aug39Poor
Sep29Moderate
Oct21Moderate
Nov21Moderate
Dec24Moderate
Location & terrain

Where is Belize?

Belize sits at 4.7°S, 12.8°E, 178 m above sea level, in Angola. The nearest listed city is Buco Zau, 27 km away.

Pointe-NoireLoandjili

Topography around Belize

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Belize.

Within 3 km, the terrain around Belize has only modest variations in elevation — a maximum elevation change of 143 m around an average of 194 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 695 m; within 80 km, large variations in elevation — a maximum elevation change of 878 m.

The land around Belize is covered by trees (96%) within 3 km, trees (100%) within 16 km, and trees (71%) and grassland (27%) within 80 km.

3 km
143 m
16 km
695 m
80 km
878 m
treesshrubsgrasslandartificial surfaces
December weather nearby: Buco Zau 27 km · Tshela 44 km · Dolisie 51 km · Loudima 68 km · Kayes 76 km · Nkayi 77 km · Pointe-Noire 101 km · Loandjili 101 km

Angola travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$3,129
2025
Happiness
3.8 / 10
World Happiness, 2017
Homicide rate
4.1
per 100k, 2016
Road deaths
26.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 413
Religion
Roman Catholic 41%Protestant 38%none 12%other 9%

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 Belize (-4.65°, 12.7667°, elevation 178 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. 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).