Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Antofagasta notes an average high-temperature of a still comfortable 18.7°C (65.7°F) in September, hardly diverging from August. Nighttime temperatures in Antofagasta consistently average a mild 13°C (55.4°F) during September.Humidity
The average relative humidity in September is 70%.Rainfall
January through May, September through December are months without rainfall.Sea temperature
In Antofagasta, the average seawater temperature in September is 14.8°C (58.6°F).Note: One needs to be cautious in 14.8°C (58.6°F) waters. 13°C (55.4°F) is already forbidding, but sub-10°C (14°F) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.
Daylight
In Antofagasta, the average length of the day in September is 11h and 58min.On the first day of the month, sunrise is at 06:51 and sunset at 18:31 -04. On the last day of September, in Antofagasta, sunrise is at 07:22 and sunset at 19:40 -03.
Note: On Sunday, 08. September 2024, at 00:00, Daylight Saving Time starts, and the time zone changes from -04 to -03. Daylight Saving Time lasts until Sunday, 06. April 2025, at 00:00; consequently, the time zone reverts from -03 to -04.
Sunshine
February, September through December, with an average of 10h of sunshine, are months with the most sunshine.UV index
March through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What is the usual temperature for Antofagasta in September?
What is the average humidity in September in Antofagasta?
What is the driest month in Antofagasta?
Does it rain in Antofagasta in September?
How cold is the water in September in Antofagasta?
What is the average length of the day in September in Antofagasta?
When is the sunrise / sunset in September in Antofagasta?
When does Daylight Saving Time (DST) start in September in Antofagasta?
What is the month with the most sunshine in Antofagasta?
How long on average sun shines in September in Antofagasta?
What are the months with the lowest UV index in Antofagasta?
What is the UV index reading in September in Antofagasta?
Average temperature in September
Antofagasta, Chile
- Average high temperature in September: 18.7°C
The warmest month (with the highest average high temperature) is February (23.7°C).
The month with the lowest average high temperature is July (18.3°C).
- Average low temperature in September: 13°C
The month with the highest average low temperature is February (18.8°C).
The coldest month (with the lowest average low temperature) is August (12.6°C).
Average pressure in September
Antofagasta, Chile
- Average pressure in September: 1014.9mbar
The month with the highest atmospheric pressure is July (1015.5mbar).
The month with the lowest atmospheric pressure is February (1012mbar).
Average wind speed in September
Antofagasta, Chile
- Average wind speed in September: 12.6km/h
The windiest month (with the highest average wind speed) is December (12.8km/h).
The calmest months (with the lowest average wind speed) are May and June (10.9km/h).
Average humidity in September
Antofagasta, Chile
- Average humidity in September: 70%
The months with the highest relative humidity are February, March and April (75%).
The months with the lowest relative humidity are June and July (67%).
Average rainfall in September
Antofagasta, Chile
- Average rainfall in September: 0mm
The wettest months (with the highest rainfall) are June, July and August (1mm).
The driest months (with the least rainfall) are January, February, March, April, May, September, October, November and December (0mm).
Average rainfall days in September
Antofagasta, Chile
- Average rainfall days in September: 0.4 days
The month with the highest number of rainy days is July (1.6 days).
The month with the least rainy days is November (0 days).
Average sea temperature in September
Antofagasta, Chile
- Average sea temperature in September: 14.8°C
The best month for swimming (with the highest average sea temperature) is February (20.8°C).
The coldest month (with the lowest average sea temperature) is August (14.6°C).
Average daylight in September /
Average sunshine in September
Antofagasta, Chile
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in September: 10h and 0min
The months with the most sunshine are February, September, October, November and December (Average sunshine: 10h and 0min).
The month with the least sunshine is July (Average sunshine: 9h and 48min).
Average sunshine days in September
Antofagasta, Chile
- Average sunshine days in September: 29.9 days
The month with the most sunshine days is October (31 days).
The month with the least sunshine days is February (27.2 days).
Average UV index in September
Antofagasta, Chile
- Average UV index in September: 5
The months with the highest UV index are January and February (UV index 6).
The months with the lowest UV index are March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in September
Antofagasta, Chile
- Average cloud cover in September: 2
The month with the most cloud cover is February (Cloud cover 11).
The month with the least cloud cover is September (Cloud cover 2).
Average visibility in September
Antofagasta, Chile
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Antofagasta, Chile
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