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September Weather in Puerto Aysen, Chile

Last updated: August 22, 2025

In Puerto Aysen, Chile, the average temperature in September hovers around 3°C (38°F). Expect a chilly range where the minimum can dip to -6°C (22°F) and the maximum peaks at 14°C (57°F). Be prepared for a damp atmosphere with a total precipitation of 303 mm (11.9 in) spread over 23 days and an average humidity level of 88%.

September Temperature in Puerto Aysen

In September in Puerto Aysen, the average temperature is 3°C (38°F), with maximums reaching 14°C (57°F) and minimums dropping to as low as -6°C (22°F). Be sure to pack warm clothing and prepare for chilly conditions if you're planning to travel during this time.

September Weather in Puerto Aysen: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Puerto Aysen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Puerto Aysen, September typically has an average temperature of 3°C (38°F), with highs reaching up to 14°C (57°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec515349454034343637404551
Data source: Temperature data for Puerto Aysen generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Puerto Aysen

In Puerto Aysen in September, the precipitation amount is 303 mm (11.9 in) over a span of 23 days.

September Precipitation Trends in Puerto Aysen

The chart displays monthly precipitation patterns in Puerto Aysen, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Puerto Aysen, September typically receives around 303 mm (11.9 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec233162251296361435344392303308280239
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Puerto Aysen

In Puerto Aysen in September, humidity is 88%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while traveling.

September Average Humidity in Puerto Aysen

This chart illustrates the average monthly humidity levels in Puerto Aysen, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Puerto Aysen is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%88%86%89%89%89%89%89%88%86%85%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Puerto Aysen

In Puerto Aysen in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Puerto Aysen, you can refer to this Hourly UV Index in Puerto Aysen.

Maximum UV Index Levels in Puerto Aysen for September

The chart shows the monthly maximum UV Index (UVI) for Puerto Aysen in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Puerto Aysen typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1311853224691113
Data source: Puerto Aysen September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Puerto Aysen Compares to Other Months

Weather in Puerto Aysen varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Puerto Aysen, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Puerto Aysen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)233 mm (9.2 inches)85%extreme
February Weather12°C (53°F)162 mm (6.4 inches)88%extreme
March Weather10°C (50°F)251 mm (9.9 inches)86%very high
April Weather7°C (45°F)296 mm (11.7 inches)89%moderate
May Weather4°C (40°F)361 mm (14.2 inches)89%moderate
June Weather1°C (34°F)435 mm (17.1 inches)89%low
July Weather1°C (34°F)344 mm (13.5 inches)89%low
August Weather2°C (36°F)392 mm (15.4 inches)89%moderate
September Weather3°C (38°F)303 mm (11.9 inches)88%high
October Weather4°C (40°F)308 mm (12.1 inches)86%very high
November Weather7°C (46°F)280 mm (11.0 inches)84%extreme
December Weather10°C (51°F)239 mm (9.4 inches)86%extreme

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