Les Cayes in Fall
In fall (September, October and November), Les Cayes sees average daytime highs around 28°C and overnight lows near 24°C, with 329 mm of rain over about 47 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across fall, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 38% of the time across fall, and the air most often feels oppressive.
Fall is Les Cayes's weakest season of the year to visit on our travel score. Les Cayes 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 Les Cayes's year-round climate.
- Avg daytime high
- 28°C
- 2nd-warmest season
- Avg overnight low
- 24°C
- Rainfall
- 329 mm
- 47 wet days
- Avg wind
- 9 km/h
- Travel score
- 5.4
- weakest season of the year
- Months
- Sep · Oct · Nov
Temperature in Les Cayes in Fall
Across fall, daytime highs hold fairly steady around 28°C.
A typical fall day in Les Cayes reaches about 28°C and drops to 24°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Les Cayes
Once humidity and wind are folded in, fall brings about 12 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Les Cayes 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 | 26° / 22° | 23 | 5.1 | 11 | 8.0 |
| Feb | 26° / 22° | 22 | 5.7 | 11.4 | 7.8 |
| Mar | 26° / 22° | 41 | 10 | 11.9 | 7.1 |
| Apr | 27° / 23° | 60 | 13.1 | 12.4 | 6.4 |
| May | 27° / 24° | 100 | 15.6 | 12.8 | 5.7 |
| Jun | 28° / 25° | 62 | 10 | 13.1 | 5.9 |
| Jul | 29° / 25° | 54 | 10 | 13 | 5.7 |
| Aug | 29° / 25° | 78 | 12.5 | 12.6 | 5.3 |
| Sep | 29° / 25° | 100 | 16.4 | 12.1 | 4.8 |
| Oct | 28° / 24° | 145 | 18.3 | 11.6 | 5.2 |
| Nov | 27° / 24° | 84 | 12.2 | 11.1 | 6.3 |
| Dec | 27° / 23° | 27 | 6 | 10.9 | 7.6 |
Cloud cover in Fall
The sky is clear or mostly clear about 38% of the time across fall.
Chance of precipitation in Fall
Les Cayes gets around 329 mm of rain over 47 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 9 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 Les Cayes
In fall, Les Cayes overlaps its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.
Les Cayes sits in the Atlantic hurricane belt; the season peaks August–October.
Les Cayes's rainy season runs August–November, when most of the year's rain falls.
Les Cayes sees seasonal dust haze (July), heaviest in July.
Is fall a good time to visit Les Cayes?
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 Les Cayes for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Les Cayes in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Les Cayes sees daytime highs around 28°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 47 days see rain.
Sea temperature near Les Cayes 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 at the nearest coast (about 15 km away) is warmest in September at about 29°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 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 27 | Warm |
| May | 28 | Warm |
| Jun | 28 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Les Cayes 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 Les Cayes peaks around June 12 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 | 11 | 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 | 11 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Les Cayes 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 Les Cayes is worst in July — around 29 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (December, 7 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) | 7 | 9 | 9 | 11 | 18 | 29 | 29 | 23 | 16 | 15 | 9 | 7 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 9 | Good |
| Mar | 9 | Good |
| Apr | 11 | Good |
| May | 18 | Moderate |
| Jun | 29 | Moderate |
| Jul | 29 | Moderate |
| Aug | 23 | Moderate |
| Sep | 16 | Moderate |
| Oct | 15 | Moderate |
| Nov | 9 | Good |
| Dec | 7 | Good |
Where is Les Cayes?
Les Cayes sits at 18.2°N, 73.7°W, 1 m above sea level, in Haiti. The nearest listed city is Jérémie, 64 km away.
Topography around Les Cayes
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Les Cayes.
Within 3 km, the terrain around Les Cayes has only modest variations in elevation — a maximum elevation change of 38 m around an average of 4 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 354 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,322 m.
The land around Les Cayes is covered by water (45%) within 3 km, water (43%) and grassland (28%) within 16 km, and water (64%) and trees (23%) 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 Les Cayes (18.192°, -73.7495°, elevation 1 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.