Climate Overview
The climate in Les Cayes is hot. The average annual temperature is 26°C and approximately 808mm of precipitation falls per year. October is the wettest month, receiving around 159mm of rainfall. Les Cayes is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, January, March, when temperatures can drop to 22°C.
Temperature
Les Cayes has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 27°C. February is the coolest month, with minimum temperatures around 22°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows.
Precipitation
Les Cayes is a moderately rainy area, receiving approximately 808mm of precipitation annually, which averages out to around 67mm per month. The wettest month is October, averaging 159mm of rainfall. November and September also tend to see above-average precipitation. The driest month is February, with just 24mm. That's 135mm less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Les Cayes is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 15km/h in winter, 17km/h in spring, 18km/h in summer, 14km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Les Cayes, which began on March 20, 2026. Les Cayes is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 29°C, while the coldest stretch bottoms out in February near 22°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 23 to 28°C. Precipitation is moderate at around 202mm for the season, averaging 67mm per month. Winds are moderate at around 17km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 25 to 29°C. Precipitation is moderate at around 179mm for the season, averaging 60mm per month. Winds are moderate at around 18km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 29°C. Rainfall is heavy, totalling around 350mm across the season with a monthly average of 117mm. Winds are generally light, averaging 14km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 27°C. Rainfall is relatively light, with around 78mm over the season and a monthly average of 26mm. Winds are moderate at around 15km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Les Cayes is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 30mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 29°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Les Cayes based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
