Grand Gosier weather in August

In August, Grand Gosier sees average daytime highs of 28°C and overnight lows near 23°C, with 111 mm of rain across 17 wet days and about 12.6 hours of daylight. It is the 1st-warmest and 5th-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 31% 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 Grand Gosier's 8th-clearest and 3rd-windiest month. For the whole year in context, see Grand Gosier's year-round climate.

Daytime high
28°
1st warmest
Overnight low
23°
12th coldest
Rainfall
111 mm
17 wet days
Daylight
12 h 36 min
5:33 AM – 6:10 PM
Cloud cover
58%
8th clearest
Wind
7 km/h
3rd windiest
Solar energy
6.56 kWh/m²
Travel score
5.5
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

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

A typical August day in Grand Gosier reaches about 28°C in the afternoon and slips back to 23°C overnight — a 4°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, August runs on par with July and on par with September.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12823
22823
32823
42823
52823
62823
72823
82823
92823
102823
112823
122823
132823
142823
152823
162823
172823
182823
192823
202723
212723
222723
232723
242723
252723
262723
272723
282723
292723
302723
312723

Grand Gosier weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 20°288117.7
Feb25° / 20°398.811.47.4
Mar25° / 21°8716.111.96.2
Apr25° / 21°11920.412.45.4
May26° / 22°13821.412.85.0
Jun27° / 23°6714.213.15.7
Jul28° / 23°5913.4136.0
Aug28° / 23°1111712.65.5
Sep27° / 23°12220.812.14.8
Oct27° / 23°13520.211.65.1
Nov26° / 22°7415.211.16.1
Dec25° / 21°358.510.97.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26139
36139
46040
56040
66040
76040
85941
95941
105941
115941
125842
135842
145842
155644
165644
175545
185446
195347
205149
215050
225050
234951
244852
254753
264753
274753
284753
294654
304852
314753

Chance of precipitation in August

Any precipitation

Grand Gosier gets around 111 mm of rain over 17 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 55% and peaks near 66% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
147
248
348
448
548
647
747
847
947
1047
1148
1248
1349
1451
1552
1653
1754
1856
1957
2059
2160
2261
2362
2463
2563
2664
2764
2865
2965
3066
3166

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 52% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)
15743
25644
35545
45446
55446
65347
75248
85248
95149
105149
115050
124951
134852
144852
154753
164654
174654
184654
194654
204654
214555
224555
234555
244555
254456
264456
274357
284357
294258
304258
314258

Wind in August

Winds average 7 km/h in August.

Across August, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 5:29 AM to 5:36 AM, and sunset from 6:19 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:296:19
212.85:296:18
312.85:306:18
412.85:306:17
512.85:306:17
612.85:306:16
712.75:316:16
812.75:316:15
912.75:316:15
1012.75:326:14
1112.75:326:13
1212.75:326:13
1312.75:326:12
1412.65:336:12
1512.65:336:11
1612.65:336:10
1712.65:336:10
1812.65:346:09
1912.65:346:08
2012.65:346:08
2112.55:346:07
2212.55:356:06
2312.55:356:05
2412.55:356:05
2512.55:356:04
2612.55:356:03
2712.45:366:02
2812.45:366:02
2912.45:366:01
3012.45:366:00
3112.45:365:59

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.56 kWh/m².

For context, solar energy here swings from a low near 4.69 kWh/m² to a high of 6.9 kWh/m² in July across the year — August's 6.56 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
76.8Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in August

Hazard calendar for Grand Gosier

In seasonPeak

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

Grand Gosier 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 Grand Gosier?

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

5.5
Sightseeing
8th-best month of the year
5.7
Beach & pool
7th-best month of the year

August is a reasonable time to visit Grand Gosier for sightseeing.

What to pack for Grand Gosier in August

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

In August, Grand Gosier sees daytime highs around 28°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Grand Gosier in August

The nearest coast averages about 29°C in August — 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 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr28Warm
May28Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Grand Gosier 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 Grand Gosier peaks around March 22 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 22UV 12Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Grand Gosier 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 Grand Gosier is worst in June — around 29 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (January, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2329 µg/m³Jan 1310 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar11Good
Apr12Moderate
May19Moderate
Jun29Moderate
Jul29Moderate
Aug24Moderate
Sep18Moderate
Oct18Moderate
Nov13Moderate
Dec11Good
Location & terrain

Where is Grand Gosier?

Grand Gosier sits at 18.2°N, 71.9°W, 25 m above sea level, in Haiti. The nearest listed city is Fond Parisien, 36 km away.

Fond ParisienKenscoffPétionvilleCroix-des-BouquetsThomazeauDelmasPort-au-Prince

Topography around Grand Gosier

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

Within 3 km, the terrain around Grand Gosier has significant variations in elevation — a maximum elevation change of 577 m around an average of 147 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,052 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,681 m.

The land around Grand Gosier is covered by water (41%) and trees (35%) within 3 km, water (43%), trees (27%) and grassland (26%) within 16 km, and water (34%), trees (30%) and grassland (26%) within 80 km.

3 km
577 m
16 km
2,052 m
80 km
2,681 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Fond Parisien 36 km · Kenscoff 48 km · Pétionville 53 km · Croix-des-Bouquets 54 km · Thomazeau 55 km · Delmas 57 km · Port-au-Prince 60 km · Neiba 63 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 Grand Gosier (18.1854°, -71.9182°, elevation 25 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).