Belize weather in May

In May, Belize sees average daytime highs of 29°C and overnight lows near 22°C, with 97 mm of rain across 17.6 wet days and about 11.8 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 28°C by the end. The sky is clear or mostly clear about 1% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of May to 11 h 48 min by month's end. Set against the rest of the year, May is Belize's 2nd-clearest and 7th-windiest month. For the whole year in context, see Belize's year-round climate.

Daytime high
29°
7th warmest
Overnight low
22°
6th coldest
Rainfall
97 mm
17.6 wet days
Daylight
11 h 48 min
6:11 AM – 5:59 PM
Cloud cover
80%
2nd clearest
Wind
4 km/h
7th windiest
Solar energy
3.66 kWh/m²
Travel score
4.5
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 28°C by the end.

A typical May 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 30°C. Set against its neighbours, May runs about 1°C cooler than April and about 3°C warmer than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
52923
62923
72923
82923
92923
102922
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222822
232822
242822
252822
262822
272821
282821
292821
302821
312721

How May really feels in Belize

Once humidity and wind are folded in, May averages 16 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
16
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.

Belize weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 8th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 10% of May, with mostly cloudy or overcast conditions the remaining 89%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1793
2793
3793
4892
5892
6892
7991
8991
91189
101189
111288
121288
131387
141387
151387
161585
171585
181585
191585
201585
211486
221486
231387
241288
251288
261189
271189
281189
291189
301189
311189

Chance of precipitation in May

Any precipitation

Belize gets around 97 mm of rain over 17.6 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 56% and peaks near 83% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
183
282
381
479
578
676
774
872
970
1068
1166
1265
1363
1461
1559
1658
1756
1854
1952
2050
2148
2246
2343
2441
2539
2637
2735
2832
2930
3028
3125

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 85% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
10928
20928
31927
41927
51936
61936
71945
82935
92935
103934
113934
124924
135914
146913
156913
167903
179883
1810873
1911872
2013852
2114842
2216822
2318802
2420791
2522771
2624751
2727721
2830691
2933670
3036640
3140600

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 4 km/h on the calmest days to 5 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
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 48 min at the start of May to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over May. Sunrise moves from 6:11 AM to 6:14 AM, and sunset from 6:01 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:116:01
211.86:116:01
311.86:116:01
411.86:116:01
511.86:116:00
611.86:116:00
711.86:116:00
811.86:116:00
911.86:116:00
1011.86:116:00
1111.86:115:59
1211.86:115:59
1311.86:115:59
1411.86:115:59
1511.86:115:59
1611.86:115:59
1711.86:125:59
1811.86:125:59
1911.86:125:59
2011.86:125:59
2111.86:125:59
2211.86:125:59
2311.86:125:59
2411.86:135:59
2511.86:135:59
2611.86:135:59
2711.86:135:59
2811.86:135:59
2911.86:135:59
3011.86:145:59
3111.86:145:59

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.66 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 — May's 3.66 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.7Moderate
153.7Moderate
163.7Moderate
173.7Moderate
183.6Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.3Moderate
293.3Moderate
303.3Moderate
313.3Moderate
Planning a trip in May

Hazard calendar for Belize

In seasonPeak

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

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 May a good time to visit Belize?

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

4.5
Sightseeing
5th-best month of the year
5.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Belize for sightseeing.

What to pack for Belize in May

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

In May, Belize sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. About 18 days see rain.

light clothesrain gear

UV index in Belize in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 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 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 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
May 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).