Climate Insights for Tandil

The climate in Tandil is temperate. The average annual temperature is 14°C and approximately 771mm of precipitation falls per year. February is the wettest month, receiving around 117mm of rainfall. Tandil 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: December, January, February. The coldest months are June, July, August, when temperatures can drop to 4°C.

Temperatures in Tandil vary considerably across the year, with a 24°C difference between the coldest and warmest months. The warmest month is December, when average highs reach 28°C and the mean temperature sits around 22°C. June is the coolest month, with minimum temperatures around 4°C and an average of 7°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 5°C shift in average temperatures.

Tandil is a relatively dry area, receiving approximately 771mm of precipitation annually, which averages out to around 64mm per month. The wettest month is February, averaging 117mm of rainfall. December and January also tend to see above-average precipitation. The driest month is August, with just 5mm. That's 112mm 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.

Tandil is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently winter in Tandil, which began on June 21, 2026. Tandil 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 December at around 28°C, while the coldest stretch bottoms out in June near 4°C. Spring is next, beginning on September 23, 2026 — 63 days from now.

The best time to visit Tandil is during March and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 34mm per month. By contrast, December can be uncomfortably hot with highs reaching 28°C, while June is the coldest period with lows dropping to 4°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 Tandil 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.