Belmopan weather in May

In May, Belmopan sees average daytime highs of 33°C and overnight lows near 24°C, with 95 mm of rain across 16.1 wet days and about 12.8 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 30% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of May to 12 h 54 min by month's end. Set against the rest of the year, May is Belmopan's 6th-clearest and 3rd-windiest month. For the whole year in context, see Belmopan's year-round climate.

Daytime high
33°
1st warmest
Overnight low
24°
11th coldest
Rainfall
95 mm
16.1 wet days
Daylight
12 h 48 min
5:27 AM – 6:15 PM
Cloud cover
58%
6th clearest
Wind
10 km/h
3rd windiest
Solar energy
5.71 kWh/m²
Travel score
3.2
out of 10

Belmopan is capital of Belize.

Founded
1970

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical May day in Belmopan reaches about 33°C in the afternoon and slips back to 24°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13323
23324
33324
43324
53324
63324
73324
83324
93324
103324
113324
123324
133324
143324
153324
163324
173324
183324
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224
313224

How May really feels in Belmopan

Once humidity and wind are folded in, May averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Belmopan weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 7th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26436
36436
46337
56337
66337
76238
86139
96139
106040
115941
125941
135842
145743
155644
165644
175545
185347
195248
205149
214951
224852
234654
244357
254258
264060
274060
283862
293664
303565
313367

Chance of precipitation in May

Any precipitation

Belmopan gets around 95 mm of rain over 16.1 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 53% and peaks near 73% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
135
236
337
438
540
641
742
843
945
1046
1147
1248
1349
1450
1552
1653
1754
1855
1956
2057
2158
2259
2360
2462
2563
2665
2766
2868
2970
3071
3173

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11116820
21116820
31106821
41106821
5196921
6196921
7186922
8186922
9186922
10177022
11176923
12077023
13076924
14076825
15076726
16066628
17066529
18066430
19066232
20056233
21056134
22055936
23045838
24045640
25045442
26035344
27035146
28034948
29024850
30024652
31024454

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 36 min at the start of May to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:34 AM to 5:24 AM, and sunset from 6:11 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:346:11
212.65:336:11
312.65:336:11
412.75:326:12
512.75:326:12
612.75:316:12
712.75:316:12
812.75:306:13
912.75:306:13
1012.75:296:13
1112.75:296:14
1212.85:296:14
1312.85:286:14
1412.85:286:15
1512.85:276:15
1612.85:276:15
1712.85:276:16
1812.85:276:16
1912.85:266:17
2012.85:266:17
2112.95:266:17
2212.95:256:18
2312.95:256:18
2412.95:256:18
2512.95:256:19
2612.95:256:19
2712.95:256:19
2812.95:246:20
2912.95:246:20
3012.95:246:20
3112.95:246:21

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.71 kWh/m².

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 — May's 5.71 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Intense
46.0Bright
56.0Bright
66.0Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.6Bright
205.6Bright
215.6Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.4Bright
275.4Bright
285.4Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in May

Hazard calendar for Belmopan

In seasonPeak

None of Belmopan's seasonal hazards are active in May. 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 May a good time to visit Belmopan?

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

3.2
Sightseeing
8th-best month of the year
5.4
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Belmopan.

What to pack for Belmopan in May

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

In May, Belmopan sees daytime highs around 33°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Belmopan in May

The nearest coast averages about 29°C in May — 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 May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). 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 May

GoodModeratePoorUnhealthyVery unhealthy

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