Gressier weather in May

In May, Gressier sees average daytime highs of 28°C and overnight lows near 23°C, with 186 mm of rain across 21.3 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 28°C through the month. The sky is clear or mostly clear about 19% of the time in May, and the air most often feels oppressive.

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 Gressier's 11th-clearest and 7th-windiest month. For the whole year in context, see Gressier's year-round climate.

Daytime high
28°
6th warmest
Overnight low
23°
7th coldest
Rainfall
186 mm
21.3 wet days
Daylight
12 h 54 min
5:20 AM – 6:12 PM
Cloud cover
63%
11th clearest
Wind
4 km/h
7th windiest
Solar energy
6.46 kWh/m²
Travel score
4.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical May day in Gressier reaches about 28°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, May runs on par with April and about 1°C cooler than June.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12822
22822
32822
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142822
152823
162823
172823
182823
192823
202823
212823
222823
232823
242823
252823
262823
272823
282823
292823
302823
312823

How May really feels in Gressier

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.

Gressier 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
Jan27° / 20°204.6117.8
Feb27° / 20°306.211.47.4
Mar27° / 21°7211.411.96.5
Apr27° / 22°12516.812.45.6
May28° / 23°18621.312.94.7
Jun29° / 23°1201813.14.5
Jul29° / 23°11819.6134.3
Aug29° / 24°15921.712.64.0
Sep29° / 23°18023.512.13.8
Oct28° / 23°16722.311.64.4
Nov27° / 22°9013.911.16.0
Dec27° / 20°316.510.97.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 28% of May, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26535
36436
46238
56238
66139
75941
85842
95644
105545
115347
125149
134951
144753
154555
164456
174258
184159
193961
203862
213862
223763
233763
243763
253763
263763
273763
283862
293862
303862
313862

Chance of precipitation in May

Any precipitation

Gressier gets around 186 mm of rain over 21.3 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 67% and peaks near 68% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
167
267
367
468
568
668
768
868
968
1068
1168
1268
1368
1468
1568
1668
1768
1868
1968
2068
2168
2268
2368
2468
2568
2667
2767
2866
2966
3065
3164

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 72% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
124850
214752
314653
414554
514455
614356
714257
804159
903961
1003862
1103664
1203466
1303268
1403169
1502971
1602773
1702575
1802377
1902179
2002080
2101882
2201783
2301684
2401486
2501387
2601288
2701288
2801189
2901090
300991
310892

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 4 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
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 5:27 AM to 5:17 AM, and sunset from 6:07 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:276:07
212.75:276:08
312.75:266:08
412.75:266:08
512.75:256:09
612.75:256:09
712.85:246:09
812.85:246:10
912.85:236:10
1012.85:236:10
1112.85:226:11
1212.85:226:11
1312.85:216:11
1412.85:216:12
1512.95:216:12
1612.95:206:12
1712.95:206:13
1812.95:206:13
1912.95:196:14
2012.95:196:14
2112.95:196:14
2212.95:186:15
2312.95:186:15
2413.05:186:16
2513.05:186:16
2613.05:186:16
2713.05:176:17
2813.05:176:17
2913.05:176:17
3013.05:176:18
3113.05:176:18

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.46 kWh/m².

For context, solar energy here swings from a low near 4.69 kWh/m² to a high of 6.87 kWh/m² in July across the year — May's 6.46 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in May

Hazard calendar for Gressier

In seasonPeak

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

Gressier 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 Gressier?

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

4.7
Sightseeing
7th-best month of the year
5.2
Beach & pool
10th-best month of the year

May is a reasonable time to visit Gressier for sightseeing.

What to pack for Gressier in May

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

In May, Gressier sees daytime highs around 28°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Gressier 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 14 km away) 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 Gressier 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 Gressier 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 Gressier 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 Gressier is worst in June — around 31 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (March, 13 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2231 µg/m³Mar 1313 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar13Moderate
Apr15Moderate
May21Moderate
Jun31Moderate
Jul30Moderate
Aug26Moderate
Sep20Moderate
Oct20Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Gressier?

Gressier sits at 18.5°N, 72.5°W, 17 m above sea level, in Haiti. The nearest listed city is Léogâne, 12 km away.

Port-au-PrinceDelmasArcahaiePétionvilleKenscoffGrangwav

Topography around Gressier

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

Within 3 km, the terrain around Gressier has significant variations in elevation — a maximum elevation change of 275 m around an average of 46 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,500 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,681 m.

The land around Gressier is covered by water (36%) and trees (33%) within 3 km, water (48%), grassland (27%) and trees (20%) within 16 km, and water (43%) and grassland (35%) within 80 km.

3 km
275 m
16 km
1,500 m
80 km
2,681 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Léogâne 12 km · Carrefour 13 km · Port-au-Prince 20 km · Delmas 24 km · Arcahaie 26 km · Pétionville 26 km · Kenscoff 28 km · Grangwav 29 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 Gressier (18.5409°, -72.5268°, elevation 17 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).