Climate Insights for Tarija

The climate in Tarija is temperate. The average annual temperature is 13°C and approximately 977mm of precipitation falls per year. December is the wettest month, receiving around 177mm of rainfall. Tarija 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: October, September, November. The coldest months are July, June, August, when temperatures can drop to 2°C. Light snow can occur between July and August.

Tarija sees moderate temperature variation throughout the year, ranging from 2°C to 22°C. October is the warmest month, though highs remain moderate at 22°C with a mean of 15°C. July is the coolest month, with minimum temperatures around 2°C and an average of 10°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between August and September, with a 2°C shift in average temperatures.

Tarija is a moderately rainy area, receiving approximately 977mm of precipitation annually, which averages out to around 81mm per month. The wettest month is December, averaging 177mm of rainfall. January and February also tend to see above-average precipitation. The driest month is June, with just 8mm. That's 169mm less than December, 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. Light snowfall can occur between July and August, totalling around 6cm annually. July is the snowiest month with approximately 4cm.

Tarija is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently winter in Tarija, which began on June 21, 2026. Tarija 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 October at around 22°C, while the coldest stretch bottoms out in July near 2°C. Spring is next, beginning on September 23, 2026 — 91 days from now.

The table below shows monthly climate averages for Tarija 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.