Climate Overview
The climate in Tumaco is hot. The average annual temperature is 26°C and approximately 3354mm of precipitation falls per year. Tumaco receives a notable amount of rainfall throughout the year, including during its driest month. Tumaco sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Tumaco has relatively stable temperatures year-round, staying within a 2°C range. The warmest month is May, when average highs reach 27°C and the mean temperature sits around 27°C. November is the coolest month, with minimum temperatures around 25°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.
Precipitation
Tumaco is a very wet location, receiving approximately 3354mm of precipitation annually, which averages out to around 279mm per month. The wettest month is January, averaging 540mm of rainfall. May and February also tend to see above-average precipitation. The driest month is November, with just 119mm. That's 421mm less than January, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Tumaco is moderately windy, with an average annual wind speed of 22km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 26km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in March, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 10km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 21km/h in winter, 19km/h in spring, 24km/h in summer, 25km/h in autumn.
Seasons
88 days until Summer
It is currently spring in Tumaco, which began on March 20, 2026. Tumaco sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in May at around 27°C, while the coldest stretch bottoms out in November near 25°C. Summer is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from 26 to 27°C. Rainfall is heavy, totalling around 976mm across the season with a monthly average of 325mm. Winds are moderate at around 19km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 25 to 27°C. Rainfall is heavy, totalling around 691mm across the season with a monthly average of 230mm. Winds are moderate at around 24km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 26°C. Rainfall is heavy, totalling around 459mm across the season with a monthly average of 153mm. Winds are strong, averaging 25km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 27°C. Rainfall is heavy, totalling around 1227mm across the season with a monthly average of 409mm. Winds are moderate at around 21km/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 Tumaco 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.
