Climate Overview
The climate in Saint-Laurent-du-Maroni is hot. The average annual temperature is 27°C and approximately 2307mm 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 8°C range. The warmest month is September, when average highs reach 32°C and the mean temperature sits around 28°C. July is the coolest month, with minimum temperatures around 24°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.
Precipitation
Saint-Laurent-du-Maroni is a very wet location, receiving approximately 2307mm of precipitation annually, which averages out to around 192mm per month. The wettest month is June, averaging 393mm of rainfall. May and April also tend to see above-average precipitation. The driest month is October, with just 62mm. That's 331mm less than June, 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
Saint-Laurent-du-Maroni is relatively calm, with an average annual wind speed of 4km/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 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
93 days until Autumn
It is currently summer in Saint-Laurent-du-Maroni, which began on June 21, 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 July near 24°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from 25 to 29°C. Rainfall is heavy, totalling around 769mm across the season with a monthly average of 256mm. Winds are generally light, averaging 4km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 31°C. Rainfall is heavy, totalling around 768mm across the season with a monthly average of 256mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 32°C. Precipitation is moderate at around 298mm for the season, averaging 99mm per month. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 29°C. Rainfall is heavy, totalling around 473mm across the season with a monthly average of 158mm. Winds are generally light, averaging 4km/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.
