Gressier weather in August

In August, Gressier sees average daytime highs of 29°C and overnight lows near 24°C, with 159 mm of rain across 21.7 wet days and about 12.6 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 23% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 48 min at the start of August to 12 h 24 min by month's end. Set against the rest of the year, August is Gressier's 8th-clearest and 9th-windiest month. For the whole year in context, see Gressier's year-round climate.

Daytime high
29°
1st warmest
Overnight low
24°
12th coldest
Rainfall
159 mm
21.7 wet days
Daylight
12 h 36 min
5:35 AM – 6:13 PM
Cloud cover
62%
8th clearest
Wind
4 km/h
9th windiest
Solar energy
6.58 kWh/m²
Travel score
4.0
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical August day in Gressier reaches about 29°C in the afternoon and slips back to 24°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, August runs on par with July and on par with September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12924
22924
32924
42924
52924
62924
72924
82924
92924
102924
112924
122924
132924
142924
152924
162924
172924
182924
192924
202924
212924
222924
232924
242924
252924
262924
272924
282923
292923
302923
312923

How August really feels in Gressier

Once humidity and wind are folded in, August 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 August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Gressier weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 4th-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 26% of August, 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 (%)
15446
25347
35347
45248
55347
65248
75248
85248
95248
105248
115248
125248
135149
145149
155149
165050
174951
184951
194852
204654
214654
224555
234555
244456
254357
264357
274357
284258
294258
304258
314258

Chance of precipitation in August

Any precipitation

Gressier gets around 159 mm of rain over 21.7 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 71% and peaks near 77% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
164
264
364
464
564
665
765
865
965
1066
1166
1267
1368
1469
1570
1671
1772
1873
1973
2074
2175
2275
2376
2476
2577
2677
2777
2877
2977
3077
3177

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 97% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
16931
26931
36931
45941
55950
65950
75950
84960
94960
104960
114960
123970
133970
143970
153970
162980
172980
182980
192980
202980
212980
222980
232971
242971
252971
262971
271981
281981
291990
301990
311990

Wind in August

Winds average 4 km/h in August.

Across August, 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 August

DaylightNight

Daylight runs from about 12 h 48 min at the start of August to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over August. Sunrise moves from 5:31 AM to 5:39 AM, and sunset from 6:22 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:316:22
212.85:316:21
312.85:316:21
412.85:326:20
512.85:326:20
612.85:326:19
712.85:336:19
812.85:336:18
912.75:336:18
1012.75:346:17
1112.75:346:16
1212.75:346:16
1312.75:346:15
1412.75:356:15
1512.65:356:14
1612.65:356:13
1712.65:356:13
1812.65:366:12
1912.65:366:11
2012.65:366:10
2112.65:366:10
2212.55:376:09
2312.55:376:08
2412.55:376:07
2512.55:376:07
2612.55:386:06
2712.55:386:05
2812.45:386:04
2912.45:386:03
3012.45:386:03
3112.45:396:02

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.58 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 — August's 6.58 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.8Intense
56.8Intense
66.8Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.7Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.3Intense
316.3Intense
Planning a trip in August

Hazard calendar for Gressier

In seasonPeak

In August, Gressier sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

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 August a good time to visit Gressier?

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

4.0
Sightseeing
11th-best month of the year
5.2
Beach & pool
9th-best month of the year

August is a reasonable time to visit Gressier for sightseeing.

What to pack for Gressier in August

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

In August, Gressier sees daytime highs around 29°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Gressier in August

The nearest coast averages about 30°C in August — 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 August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 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 August

GoodModeratePoorUnhealthyVery unhealthy

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