Climate Insights for Ushuaia

The climate in Ushuaia is cool. The average annual temperature is 4°C and approximately 872mm of precipitation falls per year. Ushuaia receives a notable amount of rainfall throughout the year, including during its driest month. Ushuaia 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 August, July, June, when temperatures can drop to -4°C. Ushuaia experiences heavy snowfall, typically from January through December.

Ushuaia sees moderate temperature variation throughout the year, ranging from -4°C to 12°C. February is the warmest month, though highs remain moderate at 12°C with a mean of 8°C. The coldest month is August, when overnight lows fall to -4°C and the daily average is 0°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between March and April, with a 3°C shift in average temperatures.

Ushuaia is a moderately rainy area, receiving approximately 872mm of precipitation annually, which averages out to around 73mm per month. The wettest month is January, averaging 113mm of rainfall. December and February also tend to see above-average precipitation. The driest month is July, with just 46mm. That's 66mm less than January, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Ushuaia receives heavy snowfall, accumulating around 243cm annually from January through December. The snowiest month is August, with approximately 49cm. Winter travel should account for significant snow cover.

Ushuaia is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, 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 1km/h gap between the calmest and windiest months.

It is currently winter in Ushuaia, which began on June 21, 2026. Ushuaia 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 12°C, while the coldest stretch bottoms out in August near -4°C. Spring is next, beginning on September 23, 2026 — 84 days from now.

The table below shows monthly climate averages for Ushuaia 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.