Climate Insights for Osorno

The climate in Osorno is cold. The average annual temperature is -19°C and approximately 38mm of precipitation falls per year. December is the wettest month, receiving around 13mm of rainfall. Osorno 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, December, January. The coldest months are May, August, June, when temperatures can drop to -24°C. Light snow can occur between July and December.

Osorno sees moderate temperature variation throughout the year, ranging from -24°C to -13°C. November is the warmest month, though highs remain moderate at -13°C with a mean of -17°C. May brings the harshest conditions, with lows dropping to -24°C and an average temperature of -22°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between February and March, with a 2°C shift in average temperatures.

Osorno is a quite dry location, receiving approximately 38mm of precipitation annually, which averages out to around 3mm per month. The wettest month is December, averaging 13mm of rainfall. November and August also tend to see above-average precipitation. The driest month is January, with just 0mm. 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 December, totalling around 38cm annually. December is the snowiest month with approximately 13cm.

Osorno 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 January, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 8km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 5km/h in winter, 5km/h in spring, 7km/h in summer, 7km/h in autumn.

It is currently winter in Osorno, which began on June 21, 2026. Osorno 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 -13°C, while the coldest stretch bottoms out in May near -24°C. Spring is next, beginning on September 23, 2026 — 22 days from now.

The table below shows monthly climate averages for Osorno 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.