Climate Overview
The climate in Saint-Laurent-du-Maroni is hot. The average annual temperature is 26°C and approximately 2723mm of precipitation falls per year. Saint-Laurent-du-Maroni receives a notable amount of rainfall throughout the year, including during its driest month. Saint-Laurent-du-Maroni sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Saint-Laurent-du-Maroni has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is September, when average highs reach 32°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 23°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Saint-Laurent-du-Maroni is a very wet location, receiving approximately 2723mm of precipitation annually, which averages out to around 227mm per month. The wettest month is May, averaging 430mm of rainfall. June and April also tend to see above-average precipitation. The driest month is September, with just 97mm. That's 334mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Saint-Laurent-du-Maroni is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 14km/h in winter, 14km/h in spring, 10km/h in summer, 12km/h in autumn.
Seasons
90 days until Summer
It is currently spring in Saint-Laurent-du-Maroni, which began on March 20, 2026. Saint-Laurent-du-Maroni sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in September at around 32°C, while the coldest stretch bottoms out in January near 23°C. Summer is next, beginning on June 21, 2026 — 90 days from now.
Spring
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 892mm across the season with a monthly average of 297mm. Winds are generally light, averaging 14km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 23 to 32°C. Rainfall is heavy, totalling around 832mm across the season with a monthly average of 277mm. Winds are generally light, averaging 10km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 32°C. Rainfall is heavy, totalling around 404mm across the season with a monthly average of 135mm. Winds are generally light, averaging 12km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 595mm across the season with a monthly average of 198mm. Winds are generally light, averaging 14km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Saint-Laurent-du-Maroni 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.
