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Weather in Antofagasta for September 2025

Your guide to Antofagasta weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Antofagasta at the beginning of September is 18.4 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 18 °C by the end of September.

    • Rain 🌧️

  • Precipitation in Antofagasta during September is a rare event, with an average of fewer than 2 rainy days.

    • More

  • Is September a good time to visit Antofagasta? check out the best time to travel to Antofagasta page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
30
Dry days
Average rainy days
0
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/12°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Antofagasta in September average weather

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
18°
2
Partly cloudy
18°
3
Sunny
17°
4
Sunny
20°
5
Sunny
19°
6
Sunny
19°
7
Sunny
18°
8
Patchy rain possible
18°
9
Sunny
20°
10
Sunny
19°
11
Sunny
19°
12
Partly cloudy
17°
13
Sunny
18°
14
Sunny
19°
15
Sunny
20°
16
Sunny
19°
17
Sunny
19°
18
Sunny
20°
19
Sunny
19°
20
Sunny
19°
21
Patchy rain possible
19°
22
Sunny
19°
23
Patchy rain possible
19°
24
Patchy rain possible
18°
25
Partly cloudy
18°
26
Patchy rain possible
18°
27
Patchy rain possible
18°
28
Partly cloudy
18°
29
Patchy rain possible
18°
30
Sunny
18°
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Access Antofagasta weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Temperatures trend during September in Antofagasta

See the weather trend as well as the moving average line
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September weather day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 18° /11° 0 mm 6
2 Sept. Partly cloudy
Partly cloudy
 18° /10° 0 mm 6
3 Sept. Sunny
Sunny
 17° /11° 0 mm 5
4 Sept. Sunny
Sunny
 20° /12° 0.1 mm 6
5 Sept. Sunny
Sunny
 19° /12° 0 mm 6
6 Sept. Sunny
Sunny
 19° /11° 0 mm 6
7 Sept. Sunny
Sunny
 18° /11° 0 mm 6
8 Sept. Patchy rain possible
Patchy rain possible
 18° /12° 0.1 mm 5
9 Sept. Sunny
Sunny
 20° /12° 0 mm 6
10 Sept. Sunny
Sunny
 19° /12° 0 mm 6
11 Sept. Sunny
Sunny
 19° /11° 0 mm 6
12 Sept. Partly cloudy
Partly cloudy
 17° /11° 0.1 mm 5
13 Sept. Sunny
Sunny
 18° /11° 0 mm 5
14 Sept. Sunny
Sunny
 19° /12° 0 mm 6
15 Sept. Sunny
Sunny
 20° /12° 0 mm 6
16 Sept. Sunny
Sunny
 19° /12° 0 mm 5
17 Sept. Sunny
Sunny
 19° /12° 0 mm 6
18 Sept. Sunny
Sunny
 20° /13° 0 mm 6
19 Sept. Sunny
Sunny
 19° /12° 0 mm 6
20 Sept. Sunny
Sunny
 19° /12° 0 mm 6
21 Sept. Patchy rain possible
Patchy rain possible
 19° /12° 0.1 mm 5
22 Sept. Sunny
Sunny
 19° /12° 0 mm 6
23 Sept. Patchy rain possible
Patchy rain possible
 19° /12° 0 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
 18° /12° 0.1 mm 5
25 Sept. Partly cloudy
Partly cloudy
 18° /12° 0.1 mm 5
26 Sept. Patchy rain possible
Patchy rain possible
 18° /12° 0 mm 5
27 Sept. Patchy rain possible
Patchy rain possible
 18° /11° 0.1 mm 5
28 Sept. Partly cloudy
Partly cloudy
 18° /11° 0 mm 6
29 Sept. Patchy rain possible
Patchy rain possible
 18° /11° 0 mm 5
30 Sept. Sunny
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.

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.

What to pack to Antofagasta in September?

As you prepare for your trip to Antofagasta in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Antofagasta, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
  • Accessories
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather

September rainfall patterns in Antofagasta

Explore the daily rainfall trends and prepare for Antofagastas September weather 💧
Provinces in Antofagasta
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Provincia de Antofagasta

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Location coordinates Where is Antofagasta?

Get accurate weather forecasts for Antofagasta, located at latitude -23.652 and longitude -70.395. Stay updated with localized weather information tailored for Antofagasta.

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