Climate Insights for Rawson

The climate in Rawson is warm and mild. The average annual temperature is 22°C and approximately 219mm of precipitation falls per year. November is the wettest month, receiving around 33mm of rainfall. Rawson 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: September, October, July. The coldest months are August, July, June, when temperatures can drop to 13°C.

Rawson sees moderate temperature variation throughout the year, ranging from 13°C to 27°C. The warmest month is September, when average highs reach 27°C and the mean temperature sits around 25°C. August is the coolest month, with minimum temperatures around 13°C and an average of 18°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between August and September, with a 7°C shift in average temperatures.

Rawson is a quite dry location, receiving approximately 219mm of precipitation annually, which averages out to around 18mm per month. The wettest month is January, averaging 33mm of rainfall. February and August also tend to see above-average precipitation. The driest month is June, with just 0mm. That's 33mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Rawson 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 June, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 9km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently winter in Rawson, which began on June 21, 2026. Rawson 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 September at around 27°C, while the coldest stretch bottoms out in August near 13°C. Spring is next, beginning on September 23, 2026 — 16 days from now.

The best time to visit Rawson is during January, February, March, April, May, June, July, August, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 18mm per month. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Rawson 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.