Weather for Antofagasta in September is typically good with an average maximum temperature of +68°F during the day, and approximately 12 sunny days monthly. Typically, there are about 8 rainy days with the total average precipitation that falls in September around 5 mm. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Average weather
☀️
+68°F
Avg. max. temperature
+48°F
Min.
+79°F
Max.
5 mm
Total precipitation
91%
Avg. humidity
2 m/s
Avg. wind
12 ☀️
Sunny Days
10 ⛅️
Cloudy
8 🌦
Rainy
Our opinion: Antofagasta has good weather in September.
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Average temperature in Antofagasta in September
Here are the expected maximum, average and minimum temperatures in Antofagasta for September based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in September is +70°F with a maximum of +73°F and a minimum of +55°F.
The average maximum temperature goes up 10% by the end of the month, compared with the beginning of the month, from +70°F to +72°F.
Is Antofagasta warm or cold in September?
Antofagasta is typically mild in September.
Maximum temperatures go up compared to the previous month from +68°F to +68°F. The minimum temperature also goes up from +55°F to +57°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how September is compared to other months in Antofagasta:
Water temperature in Antofagasta in September
Water in Antofagasta in September is Cold. It varies from +58°F to +61°F, with an average of +60°F.This is almost similar to the air temperature, which averages +68°F.
The water temperature in September is one of the coldest of the entire year:
The warmest water temperatures in Antofagasta are reached in February, when the average sea temperature rises to +71°F. The coldest water temperatures are in August, with an average of +59°F.
Can you swim in Antofagasta in September?
We would not recommend swimming in Antofagasta in September, the water is very cold (+60°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.
Climate in Antofagasta in September
Antofagasta weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+68°F
+68°F
+70°F
Min. temperature
+46°F
+48°F
+54°F
Max. temperature
+81°F
+79°F
+75°F
Rainfall
7 mm
5 mm
4 mm
Wind
2 m/s
2 m/s
2 m/s
Avg. water temperature
+59°F
+60°F
+61°F
Humidity
91%
91%
91%
Air pressure
1015 HPa
1015 HPa
1014 HPa
Sunny days
12
12
10
Cloudy days
10
10
12
Rainy days
8
8
9
Snowy days
0
0
0
September weather is still as good as in August.The temperature levels stay the same in the area of +68°F for average maximum temperature during the day.As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 7 mm to 5 mm.Humidity levels don’t change as the month goes on, averaging around 91%.The average wind speed doesn’t change much during September, staying around 2 m/s.The amount of sunny days stay about the same, averaging 12 sunny days during the month.
October brings much the same weather, it remains good.
Wind speed in Antofagasta in September based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Antofagasta is gradually increasing during September, going from 3 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Antofagasta based on historical data.
Last Year
Historical Data
Total precipitation in September is about 3 mm, with a 7% chance of rain on a typical day. The maximum amount of rainfall per day is around 1 mm, which is considered light rain.Antofagasta is amazing in September with as little as 2 rainy days on average, so plan adventures in the great outdoors.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Antofagasta wettest month is June, where a typical day has a 33% chance of precipitation and 11 mm of rainfall per day. January, on the other hand, is the driest month with a mere 13% chance of precipitation and 1 mm of rainfall per day.
How was the weather last September in Antofagasta?
This is the weather in Antofagasta in September 2023:
1 September
☁️
+69°F
2 September
☀️
+72°F
3 September
☀️
+68°F
4 September
☀️
+72°F
5 September
☀️
+71°F
6 September
☁️
+69°F
7 September
☀️
+72°F
8 September
☀️
+72°F
9 September
☀️
+72°F
10 September
☀️
+73°F
11 September
☀️
+73°F
12 September
☁️
+66°F
13 September
☀️
+72°F
14 September
☀️
+69°F
15 September
☀️
+70°F
16 September
☀️
+72°F
17 September
☀️
+71°F
18 September
☀️
+73°F
19 September
☀️
+72°F
20 September
☀️
+70°F
21 September
☀️
+69°F
22 September
☀️
+71°F
23 September
☁️
+69°F
24 September
☁️
+69°F
25 September
☁️
+71°F
26 September
☁️
+66°F
27 September
☀️
+67°F
28 September
☀️
+69°F
29 September
☀️
+69°F
30 September
☁️
+71°F
In September 2023 Antofagasta had 22 sunny days, 8 cloudy days, and 0 rainy days. The average maximum temperature was +70°F, with an absolute maximum of +73°F and a minimum of +66°F. The average humidity was 90%, with a maximum of 100% and a minimum of 61%. The average wind speed was 3 m/s, with a maximum of 7 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change Over the Years
This is how Antofagasta climate has changed over the last 43 years.
The climate in Antofagasta in September has not changed that much over the last 43 years.
The average temperature was the lowest in 2022 (+69°F) and the highest in 1997 (+74°F). The driest year was 1980 with only 25 mm of rainfall, and the wettest year was 1991 with 128 mm.
FAQ
Frequently asked questions about the weather in Antofagasta in September:
Is September a good time to visit Antofagasta?
September is a really good time to go to Antofagasta. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Antofagasta.
Can you sunbathe in Antofagasta in September?
September has mild temperatures in Antofagasta. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Can you swim in Antofagasta in September?
Swimming in Antofagasta in September is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Antofagasta rainy in September?
Antofagasta is usually dry in September. Plan your packing around outdoor activities and exploring.
Is it sunny in Antofagasta in September?
The amount of sunny days in Antofagasta during September varies; prepare for a mix of clouds and sun.
For this page, we’ve looked at the typical weather in Antofagasta, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
