Climate Overview
The climate in Kourou Airport is hot. The average annual temperature is 26°C and approximately 2830mm of precipitation falls per year. Kourou Airport receives a notable amount of rainfall throughout the year, including during its driest month. Kourou Airport sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Kourou Airport has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is September, when average highs reach 30°C and the mean temperature sits around 27°C. July is the coolest month, with minimum temperatures around 25°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows.
Precipitation
Kourou Airport is a very wet location, receiving approximately 2830mm of precipitation annually, which averages out to around 236mm per month. The wettest month is May, averaging 504mm of rainfall. June and April also tend to see above-average precipitation. The driest month is October, with just 51mm. That's 453mm less than May, 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
Kourou Airport 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 6km/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 3km/h gap between the calmest and windiest months.
Seasons
93 days until Autumn
It is currently summer in Kourou Airport, which began on June 21, 2026. Kourou Airport 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 30°C, while the coldest stretch bottoms out in July near 25°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from 25 to 28°C. Rainfall is heavy, totalling around 1068mm across the season with a monthly average of 356mm. Winds are generally light, averaging 5km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 25 to 29°C. Rainfall is heavy, totalling around 809mm across the season with a monthly average of 270mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 30°C. Precipitation is moderate at around 292mm for the season, averaging 97mm per month. Winds are generally light, averaging 4km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 28°C. Rainfall is heavy, totalling around 661mm across the season with a monthly average of 220mm. Winds are generally light, averaging 5km/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 Kourou Airport 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.
