Grand Gosier in Fall
In fall (September, October and November), Grand Gosier sees average daytime highs around 26°C and overnight lows near 23°C, with 331 mm of rain over about 56 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Across fall, daytime highs hold fairly steady around 26°C. The sky is clear or mostly clear about 30% of the time across fall, and the air most often feels muggy.
Fall is Grand Gosier's weakest season of the year to visit on our travel score. Grand Gosier has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Grand Gosier's year-round climate.
- Avg daytime high
- 26°C
- 2nd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 331 mm
- 56 wet days
- Avg wind
- 6 km/h
- Travel score
- 5.3
- weakest season of the year
- Months
- Sep · Oct · Nov
Temperature in Grand Gosier in Fall
Across fall, daytime highs hold fairly steady around 26°C.
A typical fall day in Grand Gosier reaches about 26°C and drops to 23°C overnight. The warmest of the three months is September, the coolest November.
Grand Gosier weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 25° / 20° | 28 | 8 | 11 | 7.7 |
| Feb | 25° / 20° | 39 | 8.8 | 11.4 | 7.4 |
| Mar | 25° / 21° | 87 | 16.1 | 11.9 | 6.2 |
| Apr | 25° / 21° | 119 | 20.4 | 12.4 | 5.4 |
| May | 26° / 22° | 138 | 21.4 | 12.8 | 5.0 |
| Jun | 27° / 23° | 67 | 14.2 | 13.1 | 5.7 |
| Jul | 28° / 23° | 59 | 13.4 | 13 | 6.0 |
| Aug | 28° / 23° | 111 | 17 | 12.6 | 5.5 |
| Sep | 27° / 23° | 122 | 20.8 | 12.1 | 4.8 |
| Oct | 27° / 23° | 135 | 20.2 | 11.6 | 5.1 |
| Nov | 26° / 22° | 74 | 15.2 | 11.1 | 6.1 |
| Dec | 25° / 21° | 35 | 8.5 | 10.9 | 7.4 |
Cloud cover in Fall
The sky is clear or mostly clear about 30% of the time across fall.
Chance of precipitation in Fall
Grand Gosier gets around 331 mm of rain over 56 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 6 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 24 min in early September to 11 hours by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 5.3 kWh/m².
Hazard calendar for Grand Gosier
In fall, Grand Gosier overlaps 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.
Is fall a good time to visit Grand Gosier?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Grand Gosier for sightseeing.
What to pack for Grand Gosier in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Grand Gosier sees daytime highs around 26°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 56 days see rain.
Sea temperature near Grand Gosier in Fall
The nearest coast averages about 29°C across fall — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 30 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 28 | Warm |
| May | 28 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Grand Gosier in Fall
Clear-sky midday UV across fall averages around 10 (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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 8 | 10 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 10 | 8 | 7 |
| Level | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Very high |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Grand Gosier in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 11 | 11 | 12 | 19 | 29 | 29 | 24 | 18 | 18 | 13 | 11 |
| Level | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 11 | Good |
| Mar | 11 | Good |
| Apr | 12 | Moderate |
| May | 19 | Moderate |
| Jun | 29 | Moderate |
| Jul | 29 | Moderate |
| Aug | 24 | Moderate |
| Sep | 18 | Moderate |
| Oct | 18 | Moderate |
| Nov | 13 | Moderate |
| Dec | 11 | Good |
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.
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.
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
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.