Climate Insights for Pasto

The climate in Pasto is temperate. The average annual temperature is 17°C and approximately 3106mm 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.

Pasto sees moderate temperature variation throughout the year, ranging from 12°C to 23°C. September is the warmest month, though highs remain moderate at 23°C with a mean of 17°C. August is the coolest month, with minimum temperatures around 12°C and an average of 17°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Pasto is a very wet location, receiving approximately 3106mm of precipitation annually, which averages out to around 259mm per month. The wettest month is March, averaging 349mm of rainfall. November and April also tend to see above-average precipitation. The driest month is August, with just 94mm. That's 255mm 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.

Pasto is relatively calm, with an average annual wind speed of 1km/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 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 1km/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.

It is currently summer in Pasto, which began on June 21, 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 23°C, while the coldest stretch bottoms out in August near 12°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

The best time to visit Pasto is during August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 94mm per month. By contrast, September can be uncomfortably hot with temperatures reaching 23°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

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.