Climate Overview
The climate in Río Gallegos is cool. The average annual temperature is 8°C and approximately 404mm of precipitation falls per year. January is the wettest month, receiving around 56mm 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 0°C. Light snow can occur between June and September.
Temperature
Río Gallegos sees moderate temperature variation throughout the year, ranging from 0°C to 19°C. February is the warmest month, though highs remain moderate at 19°C with a mean of 14°C. The coldest month is July, when overnight lows fall to 0°C and the daily average is 2°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between March and April, with a 4°C shift in average temperatures.
Precipitation
Río Gallegos is a relatively dry area, receiving approximately 404mm of precipitation annually, which averages out to around 34mm per month. The wettest month is January, averaging 56mm of rainfall. December and March also tend to see above-average precipitation. The driest month is August, with just 20mm. That's 36mm 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 September, totalling around 15cm annually. June is the snowiest month with approximately 5cm.
Wind
Río Gallegos 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 November, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.
Seasons
93 days until Spring
It is currently winter in Río Gallegos, which began on June 21, 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 19°C, while the coldest stretch bottoms out in July near 0°C. Spring is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from 2 to 16°C. Rainfall is relatively light, with around 82mm over the season and a monthly average of 27mm. Winds are generally light, averaging 7km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 8 to 19°C. Rainfall is relatively light, with around 143mm over the season and a monthly average of 48mm. Winds are generally light, averaging 7km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 2 to 16°C. Rainfall is relatively light, with around 114mm over the season and a monthly average of 38mm. Winds are generally light, averaging 6km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 0 to 8°C. Rainfall is relatively light, with around 64mm over the season and a monthly average of 21mm. Expect around 13cm of snow accumulation during this period. Winds are generally light, averaging 6km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
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.
