Les Cayes climate — normals and trends
Les Cayes (Haiti) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.0 °C and it receives 831 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (26.5 °C on average) and the coldest is February (23.5 °C). Rainfall peaks in October.
Les Cayes averages 0 frost days, 5 hot days (≥ 30 °C) and 156 rainy days per year.
Les Cayes has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.9 °C (on 12 July 2023) and the coldest 17.6 °C (on 15 January 1956).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
Les CayesSud
- coords
- 18.19°, -73.75°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.0°C
Average daily high
27.2°C
Average daily low
23.2°C
Annual rainfall
831mm
Sunshine / day
11.2h
Mean relative humidity
80%
Average peak wind
15.4km/h
Seasonal range
3.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
156 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.2 °C
Average feels-like low
26.4 °C
Average peak gust
31.5 km/h
Tropical nights (≥ 20 °C)
361 d/yr
Solar radiation
21.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.59 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
31.9 °C
12 July 2023
Coldest day
17.6 °C
15 January 1956
Wettest day
294 mm
4 October 2016
Windiest day
83.2 km/h
5 August 1980
Strongest gust
181.4 km/h
4 October 2016
Hottest feels-like
39.4 °C
21 August 2023
Coldest feels-like
15.3 °C
16 January 2000
Sunniest day
12.8 h
17 June 1959
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 26.9 °C | +0.9 °C | 12 mm | -14 mm |
| Feb | 26.8 °C | +0.9 °C | 18 mm | -13 mm |
| Mar | 26.9 °C | +0.7 °C | 46 mm | +4 mm |
| Apr | 27.2 °C | +0.5 °C | 92 mm | +26 mm |
| May | 27.9 °C | +0.7 °C | 67 mm | -41 mm |
| Jun | 28.6 °C | +0.6 °C | 31 mm | -47 mm |
| Jul | 29.1 °C | +0.5 °C | 29 mm | -26 mm |
| Aug | 29.8 °C | +1.1 °C | 35 mm | -42 mm |
| Sep | 29.0 °C | +0.7 °C | 148 mm | +46 mm |
| Oct | 28.0 °C | +0.5 °C | 665 mm | +519 mm |
| Nov | 28.0 °C | +0.9 °C | 33 mm | -38 mm |
| Dec | 27.2 °C | +0.7 °C | 13 mm | -18 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Les Cayes?
Les Cayes has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.0 °C and it receives 831 mm of precipitation per year.
What is the hottest day ever recorded in Les Cayes?
The hottest day measured in Les Cayes between 1940 and 2025 was 12 July 2023, reaching 31.9 °C.
What is the coldest day in Les Cayes?
The coldest day measured in Les Cayes between 1940 and 2025 was 15 January 1956, at 17.6 °C.
Does it snow in Les Cayes?
Almost never: Les Cayes sees virtually no snow, with about 0 frost days per year.
Has the climate of Les Cayes warmed?
Yes: Les Cayes warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Les Cayes?
The wettest day measured in Les Cayes between 1940 and 2025 was 4 October 2016, with 294 mm of rain in 24 hours.
What was the windiest day in Les Cayes?
The windiest day measured in Les Cayes between 1940 and 2025 was 5 August 1980, with winds reaching 83.2 km/h.
What is the warmest month in Les Cayes?
The warmest month in Les Cayes is August (26.5 °C on average); the coldest is February (23.5 °C).
How much does it rain in Les Cayes?
Les Cayes receives on average 831 mm of precipitation per year, spread over about 156 rainy days.
Is it sunny in Les Cayes?
Les Cayes gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
Are there tropical nights in Les Cayes?
Yes: Les Cayes has on average 361 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Les Cayes?
In Les Cayes, between 1940 and 2025, the highest apparent temperature reached 39.4 °C on 21 August 2023, and the lowest was 15.3 °C on 16 January 2000.
Compare Les Cayes with another city
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Nearby cities
The climate around Les Cayes