Climate Insights for Quilmes

The climate in Quilmes is temperate. The average annual temperature is 17°C and approximately 981mm of precipitation falls per year. April is the wettest month, receiving around 237mm of rainfall. Quilmes 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: February, January, December. The coldest months are June, July, August, when temperatures can drop to 8°C.

Quilmes sees moderate temperature variation throughout the year, ranging from 8°C to 28°C. The warmest month is February, when average highs reach 28°C and the mean temperature sits around 25°C. June is the coolest month, with minimum temperatures around 8°C and an average of 10°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between April and May, with a 5°C shift in average temperatures.

Quilmes is a moderately rainy area, receiving approximately 981mm of precipitation annually, which averages out to around 82mm per month. The wettest month is April, averaging 237mm of rainfall. July and October also tend to see above-average precipitation. The driest month is August, with just 22mm. That's 215mm less than April, 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.

Quilmes 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 April, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, 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.

It is currently winter in Quilmes, which began on June 21, 2026. Quilmes 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 February at around 28°C, while the coldest stretch bottoms out in June near 8°C. Spring is next, beginning on September 23, 2026 — 63 days from now.

The best time to visit Quilmes is during January, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 60mm per month. By contrast, February can be uncomfortably hot with highs reaching 28°C, while June is the coldest period with lows dropping to 8°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Quilmes 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.