Climate Insights for Río Gallegos

The climate in Río Gallegos is cool. The average annual temperature is 8°C and approximately 307mm of precipitation falls per year. January is the wettest month, receiving around 39mm of rainfall. Río Gallegos 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, June, August, when temperatures can drop to 1°C. Light snow can occur between June and August.

Río Gallegos sees moderate temperature variation throughout the year, ranging from 1°C to 17°C. February is the warmest month, though highs remain moderate at 17°C with a mean of 13°C. July is the coolest month, with minimum temperatures around 1°C and an average of 3°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between March and April, with a 3°C shift in average temperatures.

Río Gallegos is a quite dry location, receiving approximately 307mm of precipitation annually, which averages out to around 26mm per month. The wettest month is January, averaging 39mm of rainfall. December and March also tend to see above-average precipitation. The driest month is September, with just 14mm. That's 25mm less than January, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Light snowfall can occur between June and August, totalling around 8cm annually. July is the snowiest month with approximately 2cm.

Río Gallegos is very windy, with an average annual wind speed of 34km/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 38km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in June, with average winds dropping to 30km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 8km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 31km/h in winter, 36km/h in spring, 37km/h in summer, 33km/h in autumn.

It is currently autumn in Río Gallegos, which began on March 20, 2026. Río Gallegos 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 17°C, while the coldest stretch bottoms out in July near 1°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The table below shows monthly climate averages for Río Gallegos 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.