Climate Overview
The climate in Quillacollo is temperate. The average annual temperature is 14°C and approximately 935mm of precipitation falls per year. February is the wettest month, receiving around 198mm of rainfall. Quillacollo is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: November, October, September. The coldest months are July, June, August, when temperatures can drop to 4°C.
Temperature
Quillacollo sees moderate temperature variation throughout the year, ranging from 4°C to 23°C. November is the warmest month, though highs remain moderate at 23°C with a mean of 16°C. July is the coolest month, with minimum temperatures around 4°C and an average of 12°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs.
Precipitation
Quillacollo is a moderately rainy area, receiving approximately 935mm of precipitation annually, which averages out to around 78mm per month. The wettest month is February, averaging 198mm of rainfall. January and December also tend to see above-average precipitation. The driest month is July, with just 7mm. That's 190mm less than February, 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
Quillacollo is relatively calm, with an average annual wind speed of 5km/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 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.
Seasons
87 days until Summer
It is currently spring in Quillacollo, which began on September 23, 2026. Quillacollo is in the Southern Hemisphere, where the seasons are reversed: spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in November at around 23°C, while the coldest stretch bottoms out in July near 4°C. Summer is next, beginning on December 21, 2026 (87 days from now).
Spring
Temperatures range from 8 to 23°C. Rainfall is relatively light, with around 145mm over the season and a monthly average of 48mm. Winds are generally light, averaging 6km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.
Summer
Temperatures range from 11 to 21°C. Rainfall is heavy, totalling around 520mm across the season with a monthly average of 173mm. Winds are generally light, averaging 5km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 6 to 21°C. Precipitation is moderate at around 232mm for the season, averaging 77mm per month. Winds are generally light, averaging 5km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 4 to 22°C. Precipitation is minimal, with only around 38mm for the entire season. Winds are generally light, averaging 6km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Quillacollo is during October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 61mm per month. By contrast, July can be quite cold with temperatures dropping to 4°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.
Monthly Climate Data
The table below shows monthly climate averages for Quillacollo 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.