Belmopan weather in December

In December, Belmopan sees average daytime highs of 27°C and overnight lows near 20°C, with 76 mm of rain across 16.2 wet days and about 11 hours of daylight. It is the 11th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 32% 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 Belmopan's 5th-clearest and 9th-windiest month. For the whole year in context, see Belmopan's year-round climate.

Daytime high
27°
11th warmest
Overnight low
20°
2nd coldest
Rainfall
76 mm
16.2 wet days
Daylight
11 hours
6:22 AM – 5:20 PM
Cloud cover
54%
5th clearest
Wind
7 km/h
9th windiest
Solar energy
3.58 kWh/m²
Travel score
5.6
out of 10

Belmopan is capital of Belize.

Founded
1970

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical December day in Belmopan reaches about 27°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12820
22820
32820
42820
52820
62820
72820
82820
92820
102820
112820
122720
132720
142720
152720
162720
172720
182720
192720
202720
212720
222720
232720
242720
252720
262720
272720
282720
292720
302720
312719

How December really feels in Belmopan

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.

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

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Belmopan weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°6814.611.15.9
Feb29° / 20°3710.611.45.8
Mar30° / 21°389.511.95.1
Apr32° / 23°398.412.44.2
May33° / 24°9516.112.83.2
Jun31° / 24°16224.9132.7
Jul31° / 24°1262412.93.0
Aug32° / 24°12623.812.62.9
Sep32° / 24°15024.912.12.7
Oct30° / 23°16922.111.63.5
Nov28° / 21°12117.111.25.0
Dec27° / 20°7616.2115.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 28% of December, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25644
35644
45842
55941
66040
76040
86139
96139
106238
116238
126238
136238
146238
156238
166238
176238
186238
196238
206139
216139
226139
236040
245941
255842
265941
275941
285842
295842
305842
315842

Chance of precipitation in December

Any precipitation

Belmopan gets around 76 mm of rain over 16.2 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 52% and peaks near 54% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
153
253
353
452
552
652
752
852
952
1052
1151
1251
1351
1451
1551
1651
1751
1851
1951
2051
2152
2252
2353
2453
2553
2654
2754
2854
2954
3053
3153

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 83% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1021129544
2021129544
3021030553
4031029553
5031029553
6031029553
7031029553
8041029543
9041129533
10041128543
11041128543
12141228523
13141228523
14151229512
15151229512
16151329502
17151329502
18151329502
19151330492
20151330492
21151330492
22141330492
23141330492
24141331492
25141331492
26141331492
27141331502
28141330502
29151330502
30151330502
31151330492

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

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 6:14 AM to 6:29 AM, and sunset from 5:16 PM to 5:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:145:16
211.06:145:16
311.06:155:16
411.06:155:17
511.06:165:17
611.06:165:17
711.06:175:17
811.06:185:18
911.06:185:18
1011.06:195:18
1111.06:195:19
1211.06:205:19
1311.06:205:19
1411.06:215:20
1511.06:215:20
1611.06:225:20
1711.06:235:21
1811.06:235:21
1911.06:245:22
2011.06:245:22
2111.06:255:23
2211.06:255:23
2311.06:255:24
2411.06:265:24
2511.06:265:25
2611.06:275:25
2711.06:275:26
2811.06:285:26
2911.06:285:27
3011.06:285:27
3111.06:295:28

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.58 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.58 kWh/m² to a high of 5.98 kWh/m² in April across the year — December's 3.58 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.6Moderate
123.6Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.6Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.6Moderate
313.6Moderate
Planning a trip in December

Hazard calendar for Belmopan

In seasonPeak

None of Belmopan's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Belmopan sits in the Atlantic hurricane belt; the season peaks August–October.

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

Is December a good time to visit Belmopan?

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

5.6
Sightseeing
3rd-best month of the year
5.9
Beach & pool
5th-best month of the year

December is a reasonable time to visit Belmopan for sightseeing.

What to pack for Belmopan in December

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

In December, Belmopan sees daytime highs around 27°C and nights near 20°C. Pack light clothes and rain gear. About 16 days see rain.

light clothesrain gear

Sea temperature near Belmopan 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 69 km away) is warmest in September at about 30°C and coldest in January near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr28Warm
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep30Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Belmopan in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Belmopan peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 8 (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 15UV 8
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Belmopan 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 Belmopan is worst in July — around 30 µg/m³ PM2.5 (moderate), about 5.4× the cleanest month (December, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1030 µg/m³Dec 176 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar10Good
Apr22Moderate
May28Moderate
Jun29Moderate
Jul30Moderate
Aug20Moderate
Sep14Moderate
Oct10Good
Nov6Good
Dec6Good
Location & terrain

Where is Belmopan?

Belmopan sits at 17.3°N, 88.8°W, 56 m above sea level, in Belize. The nearest listed city is San Ignacio, 34 km away.

San IgnacioMelchor de MencosCrooked TreeDangrigaBelize CityHopkinsPlacenciaOrange Walk

Topography around Belmopan

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

Within 3 km, the terrain around Belmopan has only modest variations in elevation — a maximum elevation change of 124 m around an average of 62 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 314 m; within 80 km, large variations in elevation — a maximum elevation change of 1,012 m.

The land around Belmopan is covered by trees (56%) and grassland (24%) within 3 km, trees (71%) within 16 km, and trees (67%) within 80 km.

3 km
124 m
16 km
314 m
80 km
1,012 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
December weather nearby: San Ignacio 34 km · Melchor de Mencos 46 km · Crooked Tree 63 km · Dangriga 65 km · Belize City 66 km · Hopkins 67 km · Placencia 92 km · Orange Walk 94 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 Belmopan (17.2538°, -88.764°, elevation 56 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).