Climate Overview
The climate in Tiahuanaco is cool. The average annual temperature is 9°C and approximately 1340mm of precipitation falls per year. February is the wettest month, receiving around 314mm of rainfall. Tiahuanaco 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, September, October. The coldest months are July, June, August, when temperatures can drop to 0°C. Light snow can occur between January and December.
Temperature
Tiahuanaco sees moderate temperature variation throughout the year, ranging from 0°C to 17°C. November is the warmest month, though highs remain moderate at 17°C with a mean of 11°C. July is the coolest month, with minimum temperatures around 0°C and an average of 7°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs.
Precipitation
Tiahuanaco is a fairly wet location, receiving approximately 1340mm of precipitation annually, which averages out to around 112mm per month. The wettest month is February, averaging 314mm of rainfall. January and March also tend to see above-average precipitation. The driest month is August, with just 13mm. That's 300mm 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. Light snowfall can occur between January and December, totalling around 26cm annually. October is the snowiest month with approximately 4cm.
Wind
Tiahuanaco 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 August, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 0km/h gap between the calmest and windiest months.
Seasons
84 days until Spring
It is currently winter in Tiahuanaco, which began on June 21, 2026. Tiahuanaco 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 17°C, while the coldest stretch bottoms out in July near 0°C. Spring is next, beginning on September 23, 2026 — 84 days from now.
Spring
Temperatures range from 3 to 17°C. Precipitation is moderate at around 224mm for the season, averaging 75mm per month. Winds are generally light, averaging 2km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 6 to 15°C. Rainfall is heavy, totalling around 756mm across the season with a monthly average of 252mm. Winds are generally light, averaging 2km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 2 to 15°C. Rainfall is heavy, totalling around 316mm across the season with a monthly average of 105mm. Expect around 7cm of snow accumulation during this period. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 0 to 15°C. Precipitation is minimal, with only around 43mm for the entire season. Expect around 6cm of snow accumulation during this period. Winds are generally light, averaging 2km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Tiahuanaco 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.
