Antofagasta
September
Weather in Antofagasta for September 2026
Your guide to Antofagasta weather in September - trends and predictions
In general, the average temperature in Antofagasta at the beginning of September is 18 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 18.4 °C by the end of September.
Precipitation in Antofagasta during September is a rare event, with an average of fewer than 2 rainy days.
Temperatures
Rain 🌧️
30
Dry days
0
Rainy days
0
Snow days
18°/12°
Temperatures
17 km/h
Avg max wind
71 %
Avg humidity
Antofagasta Weather September
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Temperatures trend during September in Antofagasta
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September weather in Antofagasta day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 18° /11° | 0 mm | 5 | |
| 2 Sept. |  Partly cloudy | 18° /10° | 0 mm | 5 | |
| 3 Sept. |  Patchy rain possible | 17° /11° | 0 mm | 5 | |
| 4 Sept. | Sunny | 19° /11° | 0 mm | 6 | |
| 5 Sept. | Sunny | 18° /11° | 0 mm | 6 | |
| 6 Sept. | Sunny | 18° /11° | 0 mm | 5 | |
| 7 Sept. | Sunny | 18° /11° | 0 mm | 5 | |
| 8 Sept. | Sunny | 18° /11° | 0 mm | 5 | |
| 9 Sept. | Sunny | 20° /13° | 0 mm | 6 | |
| 10 Sept. | Sunny | 19° /12° | 0 mm | 6 | |
| 11 Sept. | Sunny | 19° /11° | 0 mm | 6 | |
| 12 Sept. | Patchy rain possible | 17° /11° | 0 mm | 5 | |
| 13 Sept. | Sunny | 18° /11° | 0 mm | 5 | |
| 14 Sept. | Patchy rain possible | 19° /12° | 0 mm | 5 | |
| 15 Sept. | Sunny | 19° /11° | 0 mm | 6 | |
| 16 Sept. | Sunny | 18° /11° | 0 mm | 5 | |
| 17 Sept. | Sunny | 19° /11° | 0 mm | 6 | |
| 18 Sept. | Sunny | 20° /12° | 0 mm | 6 | |
| 19 Sept. | Sunny | 19° /12° | 0 mm | 5 | |
| 20 Sept. | Sunny | 19° /11° | 0 mm | 6 | |
| 21 Sept. | Patchy rain possible | 19° /12° | 0 mm | 5 | |
| 22 Sept. | Sunny | 19° /12° | 0 mm | 6 | |
| 23 Sept. | Patchy rain possible | 19° /12° | 0 mm | 5 | |
| 24 Sept. | Sunny | 19° /12° | 0.1 mm | 6 | |
| 25 Sept. | Partly cloudy | 18° /12° | 0.1 mm | 5 | |
| 26 Sept. | Patchy rain possible | 19° /12° | 0 mm | 5 | |
| 27 Sept. | Sunny | 19° /12° | 0 mm | 6 | |
| 28 Sept. | Partly cloudy | 18° /11° | 0 mm | 5 | |
| 29 Sept. | Sunny | 18° /11° | 0 mm | 5 | |
| 30 Sept. | Sunny | 18° /11° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Antofagasta in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Antofagasta forecast closer to your planned date for the most up-to-date weather information.
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Antofagasta in September - FAQ
What are the expected maximum and minimum temperatures in Antofagasta during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Antofagasta during September?
Rainfall in Antofagasta during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Antofagasta during September?
The average wind speed in Antofagasta during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
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