Climate Insights for Puerto Montt

The climate in Puerto Montt is temperate. The average annual temperature is 11°C and approximately 2155mm of precipitation falls per year. Puerto Montt receives a notable amount of rainfall throughout the year, including during its driest month. Puerto Montt 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: February, January, December. The coldest months are July, August, September, when temperatures can drop to 5°C.

Puerto Montt sees moderate temperature variation throughout the year, ranging from 5°C to 19°C. February is the warmest month, though highs remain moderate at 19°C with a mean of 15°C. July is the coolest month, with minimum temperatures around 5°C and an average of 7°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.

Puerto Montt is a very wet location, receiving approximately 2155mm of precipitation annually, which averages out to around 180mm per month. The wettest month is June, averaging 298mm of rainfall. August and July also tend to see above-average precipitation. The driest month is February, with just 64mm. That's 235mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Puerto Montt is mildly breezy, with an average annual wind speed of 19km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 22km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in January, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h 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 21km/h in winter, 19km/h in spring, 18km/h in summer, 18km/h in autumn.

It is currently autumn in Puerto Montt, which began on March 20, 2026. Puerto Montt 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 February at around 19°C, while the coldest stretch bottoms out in July near 5°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Puerto Montt is during February, when the weather is most comfortable for travellers. During these months, average temperatures hover around 15°C with modest rainfall averaging 64mm per month. By contrast, July can be quite cold with temperatures dropping to 5°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Puerto Montt 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. 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.