Climate Insights for Viacha

The climate in Viacha is cool. The average annual temperature is 9°C and approximately 890mm of precipitation falls per year. February is the wettest month, receiving around 185mm 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 July, June, August, when temperatures can drop to 0°C. Light snow can occur between January and December.

Viacha sees moderate temperature variation throughout the year, ranging from 0°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 July, when overnight lows fall to 0°C and the daily average is 7°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs.

Viacha is a moderately rainy area, receiving approximately 890mm of precipitation annually, which averages out to around 74mm per month. The wettest month is February, averaging 185mm of rainfall. January and December also tend to see above-average precipitation. The driest month is June, with just 6mm. That's 179mm 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 13cm annually. January is the snowiest month with approximately 2cm.

Viacha is mildly breezy, with an average annual wind speed of 14km/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 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 16km/h in winter, 15km/h in spring, 12km/h in summer, 12km/h in autumn.

It is currently autumn in Viacha, which began on March 20, 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 July near 0°C. Winter is next, beginning on June 21, 2026 — 89 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.