Willemstad weather in May

In May, Willemstad sees average daytime highs of 27°C and overnight lows near 26°C, with 37 mm of rain across 8.4 wet days and about 12.6 hours of daylight. It is the 7th-warmest and 9th-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 21% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 42 min by month's end. Set against the rest of the year, May is Willemstad's 12th-clearest and 4th-windiest month. For the whole year in context, see Willemstad's year-round climate.

Daytime high
27°
7th warmest
Overnight low
26°
8th coldest
Rainfall
37 mm
8.4 wet days
Daylight
12 h 36 min
6:15 AM – 6:48 PM
Cloud cover
71%
12th clearest
Wind
31 km/h
4th windiest
Solar energy
6.28 kWh/m²
Travel score
6.5
out of 10

Willemstad is capital city of Curaçao.

Density
868/km²
people per km²
Founded
1634

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 27°C through the month.

A typical May day in Willemstad reaches about 27°C in the afternoon and slips back to 26°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 28°C. Set against its neighbours, May runs on par with April and on par with June.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12726
22726
32726
42726
52726
62726
72726
82726
92726
102726
112726
122726
132726
142726
152727
162727
172727
182727
192727
202727
212727
222727
232727
242727
252727
262727
272727
282727
292727
302727
312727

How May really feels in Willemstad

Once humidity and wind are folded in, May 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

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

Willemstad weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 25°4612.911.46.7
Feb26° / 25°237.511.67.3
Mar26° / 25°206.111.97.4
Apr27° / 26°306.912.36.8
May27° / 26°378.412.66.5
Jun27° / 27°431212.76.0
Jul27° / 26°4412.512.66.2
Aug28° / 27°4612.512.45.9
Sep28° / 27°661512.15.0
Oct28° / 27°1102111.74.4
Nov28° / 26°1502311.44.5
Dec27° / 26°841811.35.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 67%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22674
32674
42773
52773
62773
72773
82773
92674
102674
112773
122773
132872
142971
152971
163169
173169
183268
193466
203565
213565
223763
233763
243862
254060
264159
274159
284258
294456
304555
314456

Chance of precipitation in May

Any precipitation

Willemstad gets around 37 mm of rain over 8.4 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 26% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
125
225
326
426
526
627
727
827
927
1026
1126
1226
1325
1425
1524
1624
1724
1823
1924
2024
2125
2225
2326
2427
2528
2628
2729
2830
2931
3032
3133

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
15446
25347
35248
45149
55050
64852
74753
84654
94555
104357
114258
124159
133961
143862
153763
163664
173565
183466
193367
203268
213169
223070
232971
242872
252773
262773
272674
282674
292575
302575
312575

Wind in May

Winds average 31 km/h in May.

Across May, daily wind ranges from about 31 km/h on the calmest days to 32 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
131windy
231windy
331windy
431windy
531windy
631windy
731windy
831windy
931windy
1031windy
1131windy
1231windy
1332windy
1432windy
1532windy
1632windy
1732windy
1832windy
1932windy
2032windy
2132windy
2232windy
2332windy
2432windy
2532windy
2632windy
2732windy
2832windy
2932windy
3032windy
3132windy

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 42 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 6:20 AM to 6:13 AM, and sunset from 6:45 PM to 6:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:206:45
212.46:206:46
312.46:196:46
412.56:196:46
512.56:186:46
612.56:186:46
712.56:186:47
812.56:176:47
912.56:176:47
1012.56:176:47
1112.56:166:47
1212.56:166:48
1312.56:166:48
1412.56:166:48
1512.56:156:48
1612.66:156:48
1712.66:156:49
1812.66:156:49
1912.66:146:49
2012.66:146:49
2112.66:146:50
2212.66:146:50
2312.66:146:50
2412.66:146:51
2512.66:146:51
2612.66:146:51
2712.66:136:51
2812.66:136:52
2912.66:136:52
3012.66:136:52
3112.76:136:53

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.28 kWh/m².

For context, solar energy here swings from a low near 4.91 kWh/m² to a high of 6.52 kWh/m² in August across the year — May's 6.28 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.2Intense
96.2Intense
106.2Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
316.4Intense
Planning a trip in May

Hazard calendar for Willemstad

In seasonPeak

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

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

Willemstad's rainy season runs October–December, 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 May a good time to visit Willemstad?

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

6.5
Sightseeing
5th-best month of the year
6.7
Beach & pool
4th-best month of the year

May is a reasonable time to visit Willemstad for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Willemstad in May

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

In May, Willemstad sees daytime highs around 27°C and nights near 26°C. Pack light clothes, sun protection and a windbreaker. Worth having: rain gear. About 8 days see rain.

light clothessun protectiona windbreakerrain gear

Sea temperature near Willemstad in May

The nearest coast averages about 27°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in October at about 29°C and coldest in February near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb26Warm
Mar26Warm
Apr27Warm
May27Warm
Jun28Warm
Jul28Warm
Aug28Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Willemstad in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Willemstad peaks around March 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 19UV 13Dec 13UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar14Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Willemstad 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 Willemstad is worst in June — around 32 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (January, 11 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1531 µg/m³Jan 111 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar14Moderate
Apr21Moderate
May26Moderate
Jun32Moderate
Jul26Moderate
Aug20Moderate
Sep15Moderate
Oct14Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Willemstad?

Willemstad sits at 12.1°N, 68.9°W, 1 m above sea level, in Curacao. The nearest listed city is Bandariba, 7.0 km away.

Bandariba

Topography around Willemstad

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

Within 3 km, the terrain around Willemstad has only modest variations in elevation — a maximum elevation change of 90 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 178 m; within 80 km, significant variations in elevation — a maximum elevation change of 281 m.

The land around Willemstad is covered by artificial surfaces (66%) within 3 km, water (71%) within 16 km, and water (94%) within 80 km.

3 km
90 m
16 km
178 m
80 km
281 m
treesshrubsgrasslandartificial surfacesbare terrainwater
May weather nearby: Bandariba 7.0 km · Kralendijk 67 km · Puerto Cumarebo 87 km · La Vela de Coro 104 km · Pueblo Nuevo 114 km · Coro 117 km · Savaneta 120 km · Santa Cruz 126 km

Curacao travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / F
127 V · 50 Hz
Prices
≈ 70% of US
price level, 2024
GDP per capita
$22,833
2024
Homicide rate
16.9
per 100k, 2007
Income group
High
World Bank
Religion
Roman Catholic 73%Pentecostal 7%none 6%other 4%

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 Willemstad (12.1225°, -68.8864°, elevation 1 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).