Climate Insights for Río Gallegos

The climate in Río Gallegos is cool. The average annual temperature is 9°C and approximately 332mm of precipitation falls per year. January is the wettest month, receiving around 43mm 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: January, February, December. The coldest months are July, June, August, when temperatures can drop to -1°C. Light snow can occur between June and August.

Temperatures in Río Gallegos vary considerably across the year, with a 21°C difference between the coldest and warmest months. January is the warmest month, though highs remain moderate at 20°C with a mean of 14°C. The coldest month is July, when overnight lows fall to -1°C and the daily average is 2°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. 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 332mm of precipitation annually, which averages out to around 28mm per month. The wettest month is January, averaging 43mm of rainfall. December and March also tend to see above-average precipitation. The driest month is September, with just 16mm. That's 27mm 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 16cm annually. July is the snowiest month with approximately 5cm.

Río Gallegos is moderately windy, with an average annual wind speed of 23km/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 27km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 19km/h in winter, 24km/h in spring, 26km/h in summer, 21km/h in autumn.

It is currently spring in Río Gallegos, which began on September 23, 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 January at around 20°C, while the coldest stretch bottoms out in July near -1°C. Summer is next, beginning on December 21, 2026 (87 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.