Climate Insights for Viacha

The climate in Viacha is cool. The average annual temperature is 9°C and approximately 770mm of precipitation falls per year. February is the wettest month, receiving around 143mm of rainfall. Viacha 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 June, July, August, when temperatures can drop to -1°C. Light snow can occur between March and October.

Viacha sees moderate temperature variation throughout the year, ranging from -1°C to 18°C. November is the warmest month, though highs remain moderate at 18°C with a mean of 11°C. The coldest month is June, when overnight lows fall to -1°C and the daily average is 6°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs.

Viacha is a relatively dry area, receiving approximately 770mm of precipitation annually, which averages out to around 64mm per month. The wettest month is February, averaging 143mm of rainfall. January and December also tend to see above-average precipitation. The driest month is June, with just 8mm. That's 135mm 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 March and October, totalling around 9cm annually. August is the snowiest month with approximately 2cm.

Viacha is relatively calm, with an average annual wind speed of 6km/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 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.

It is currently spring in Viacha, which began on September 23, 2026. Viacha 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 18°C, while the coldest stretch bottoms out in June near -1°C. Summer is next, beginning on December 21, 2026 (87 days from now).

The table below shows monthly climate averages for Viacha 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.