Delmas weather in May

In May, Delmas sees average daytime highs of 27°C and overnight lows near 20°C, with 240 mm of rain across 24 wet days and about 12.9 hours of daylight. It is the 6th-warmest and 1st-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 12% of the time in May, and the air most often feels muggy.

Daylight stretches from about 12 h 42 min at the start of May to 13 hours by month's end. Set against the rest of the year, May is Delmas's 11th-clearest and 7th-windiest month. For the whole year in context, see Delmas's year-round climate.

Daytime high
27°
6th warmest
Overnight low
20°
7th coldest
Rainfall
240 mm
24 wet days
Daylight
12 h 54 min
5:19 AM – 6:12 PM
Cloud cover
69%
11th clearest
Wind
4 km/h
7th windiest
Solar energy
6.32 kWh/m²
Travel score
4.4
out of 10

Delmas is human settlement in Haiti.

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 Delmas reaches about 27°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, May runs on par with April and about 1°C cooler than June.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12720
22720
32720
42720
52720
62720
72720
82720
92720
102720
112720
122720
132720
142720
152720
162720
172720
182720
192720
202720
212720
222720
232720
242720
252720
262720
272720
282720
292720
302720
312821

Delmas weather by month

How May compares with the rest of the year at a glance. May 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
Jan26° / 17°266.5117.5
Feb27° / 17°428.211.47.0
Mar27° / 18°10315.311.95.9
Apr27° / 19°16920.312.45.0
May27° / 20°2402412.94.4
Jun28° / 21°14220.113.14.5
Jul29° / 21°13020.4134.3
Aug29° / 21°19323.412.63.9
Sep28° / 21°22325.512.13.8
Oct27° / 20°20824.211.64.4
Nov27° / 19°10115.811.15.7
Dec26° / 18°367.310.97.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 25% of May, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34753
44753
54654
64654
74555
84555
94357
104357
114258
124159
134060
143961
153763
163664
173565
183466
193367
203268
213268
223070
232971
242971
252971
262971
272971
282971
293070
303169
313169

Chance of precipitation in May

Any precipitation

Delmas gets around 240 mm of rain over 24 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 77% and peaks near 78% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
176
276
376
476
576
676
776
876
976
1076
1176
1276
1376
1476
1576
1676
1776
1877
1977
2077
2177
2278
2378
2478
2578
2678
2777
2877
2977
3076
3176

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 85% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
112844
212844
311854
411854
510864
69874
79865
88875
98866
107876
117867
126868
136868
145869
155869
1648610
1748511
1838611
1938512
2038512
2128513
2228513
2328513
2428414
2518514
2618514
2718514
2818514
2918415
3018415
3108515

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 3 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
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 42 min at the start of May to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:26 AM to 5:16 AM, and sunset from 6:06 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:266:06
212.75:266:07
312.75:256:07
412.75:256:07
512.75:246:08
612.75:246:08
712.85:236:08
812.85:236:09
912.85:226:09
1012.85:226:09
1112.85:216:10
1212.85:216:10
1312.85:206:10
1412.85:206:11
1512.95:206:11
1612.95:196:12
1712.95:196:12
1812.95:196:12
1912.95:186:13
2012.95:186:13
2112.95:186:13
2212.95:186:14
2312.95:176:14
2413.05:176:15
2513.05:176:15
2613.05:176:15
2713.05:166:16
2813.05:166:16
2913.05:166:17
3013.05:166:17
3113.05:166:17

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.32 kWh/m².

For context, solar energy here swings from a low near 4.65 kWh/m² to a high of 6.83 kWh/m² in July across the year — May's 6.32 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.4Intense
306.4Intense
316.4Intense
Planning a trip in May

Hazard calendar for Delmas

In seasonPeak

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

Delmas 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 Delmas?

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

4.4
Sightseeing
8th-best month of the year
4.6
Beach & pool
10th-best month of the year

May is a reasonable time to visit Delmas for sightseeing.

What to pack for Delmas in May

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

In May, Delmas sees daytime highs around 27°C and nights near 20°C. Pack light clothes, rain gear and sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Delmas 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 offshore is warmest in September at about 30°C and coldest in February near 28°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
Jan28Warm
Feb28Warm
Mar28Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov29Tropical
Dec29Tropical

UV index in Delmas 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 Delmas peaks around August 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighAug 20UV 12Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul10Very high
Aug12Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Delmas 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 Delmas is worst in June — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2233 µg/m³Mar 2222 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb24Moderate
Mar22Moderate
Apr22Moderate
May25Moderate
Jun34Moderate
Jul33Moderate
Aug29Moderate
Sep26Moderate
Oct31Moderate
Nov31Moderate
Dec31Moderate
Location & terrain

Where is Delmas?

Delmas sits at 18.5°N, 72.3°W, 127 m above sea level, in Haiti. The nearest listed city is Pétionville, 4.0 km away.

GressierThomazeauArcahaie

Topography around Delmas

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

Within 3 km, the terrain around Delmas has significant variations in elevation — a maximum elevation change of 443 m around an average of 142 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,916 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,681 m.

The land around Delmas is covered by artificial surfaces (85%) within 3 km, grassland (34%) and artificial surfaces (24%) within 16 km, and grassland (41%) and water (35%) within 80 km.

3 km
443 m
16 km
1,916 m
80 km
2,681 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Pétionville 4.0 km · Port-au-Prince 4.0 km · Croix-des-Bouquets 9.0 km · Carrefour 11 km · Kenscoff 11 km · Gressier 24 km · Thomazeau 25 km · Arcahaie 34 km

Haiti travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type A / B
110 V · 60 Hz
Prices
≈ 86% of US
price level, 2025
GDP per capita
$2,694
2025
Happiness
3.6 / 10
World Happiness, 2020
Homicide rate
41.2
per 100k, 2023
Road deaths
18.8
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 444
Religion
Catholic 55%Protestant 29%none 10%other 5%

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 Delmas (18.5448°, -72.3004°, elevation 127 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).