Climate Insights for Antofagasta

The climate in Antofagasta is temperate. The average annual temperature is 16°C and approximately 77mm of precipitation falls per year. April is the wettest month, receiving around 14mm of rainfall. Antofagasta 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, March. The coldest months are September, August, July, when temperatures can drop to 13°C.

Antofagasta has relatively stable temperatures year-round, staying within a 7°C range. February is the warmest month, though highs remain moderate at 20°C with a mean of 19°C. September is the coolest month, with minimum temperatures around 13°C and an average of 14°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.

Antofagasta is a quite dry location, receiving approximately 77mm of precipitation annually, which averages out to around 6mm per month. The wettest month is April, averaging 14mm of rainfall. July and May also tend to see above-average precipitation. The driest month is February, with just 2mm. 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.

Antofagasta is moderately windy, with an average annual wind speed of 20km/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 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in June, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 6km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 18km/h in winter, 22km/h in spring, 22km/h in summer, 20km/h in autumn.

It is currently autumn in Antofagasta, which began on March 20, 2026. Antofagasta 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 20°C, while the coldest stretch bottoms out in September near 13°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Antofagasta is during January, February, March, April, May, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 6mm per month. By contrast, September can be quite cold with temperatures dropping to 13°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Antofagasta 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.