Climate Overview
The climate in Pasto is temperate. The average annual temperature is 14°C and approximately 2175mm of precipitation falls per year. Pasto receives a notable amount of rainfall throughout the year, including during its driest month. Pasto sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Pasto has relatively stable temperatures year-round, staying within a 10°C range. September is the warmest month, though highs remain moderate at 20°C with a mean of 15°C. August is the coolest month, with minimum temperatures around 10°C and an average of 14°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
Pasto is a very wet location, receiving approximately 2175mm of precipitation annually, which averages out to around 181mm per month. The wettest month is March, averaging 296mm of rainfall. April and November also tend to see above-average precipitation. The driest month is August, with just 72mm. That's 224mm less than March, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Pasto is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 8km/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 pick up during the summer months. The seasonal averages are 8km/h in winter, 8km/h in spring, 12km/h in summer, 9km/h in autumn.
Seasons
90 days until Summer
It is currently spring in Pasto, which began on March 20, 2026. Pasto 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 20°C, while the coldest stretch bottoms out in August near 10°C. Summer is next, beginning on June 21, 2026 — 90 days from now.
Spring
Temperatures range from 11 to 19°C. Rainfall is heavy, totalling around 752mm across the season with a monthly average of 251mm. Winds are generally light, averaging 8km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 10 to 19°C. Rainfall is heavy, totalling around 326mm across the season with a monthly average of 109mm. Winds are generally light, averaging 12km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 10 to 20°C. Rainfall is heavy, totalling around 516mm across the season with a monthly average of 172mm. Winds are generally light, averaging 9km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 11 to 19°C. Rainfall is heavy, totalling around 580mm across the season with a monthly average of 193mm. Winds are generally light, averaging 8km/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 Pasto 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.
