Climate Overview
The climate in Unión Chocó is hot. The average annual temperature is 25°C and approximately 3128mm of precipitation falls per year. Unión Chocó receives a notable amount of rainfall throughout the year, including during its driest month. Unión Chocó sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Unión Chocó has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is February, when average highs reach 31°C and the mean temperature sits around 26°C. January is the coolest month, with minimum temperatures around 22°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Unión Chocó is a very wet location, receiving approximately 3128mm of precipitation annually, which averages out to around 261mm per month. The wettest month is July, averaging 414mm of rainfall. June and October also tend to see above-average precipitation. The driest month is February, with just 36mm. That's 378mm less than July, 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
Unión Chocó is relatively calm, with an average annual wind speed of 6km/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 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Unión Chocó, which began on March 20, 2026. Unión Chocó sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in February at around 31°C, while the coldest stretch bottoms out in January near 22°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 22 to 31°C. Rainfall is heavy, totalling around 703mm across the season with a monthly average of 234mm. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 1164mm across the season with a monthly average of 388mm. Winds are generally light, averaging 5km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 22 to 29°C. Rainfall is heavy, totalling around 1037mm across the season with a monthly average of 346mm. Winds are generally light, averaging 5km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 31°C. Precipitation is moderate at around 224mm for the season, averaging 75mm per month. Winds are generally light, averaging 7km/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 Unión Chocó 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.
