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September Weather in Aasiaat, Greenland

Last updated: August 23, 2025

In September, the average temperature in Aasiaat, Greenland hovers around 3°C (38°F). While temperatures can dip to a chilly -6°C (22°F), you might also enjoy milder days with highs reaching 11°C (52°F). Expect about 26 mm (1.0 in) of precipitation spread over 7 days, accompanied by a notable average humidity of 85%.

September Temperature in Aasiaat

In September in Aasiaat, the average temperature is 3°C (38°F). The maximum can reach 11°C (52°F), and the minimum can be as low as -6°C (22°F). Travelers should be prepared for chilly conditions and dress in layers to stay warm during their visit.

September Weather in Aasiaat: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Aasiaat, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aasiaat, September typically has an average temperature of 3°C (38°F), with highs reaching up to 11°C (52°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec1259213341464537312320
Data source: Temperature data for Aasiaat 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 Aasiaat

In Aasiaat in September, the total precipitation amount is 26 mm (1.0 in) spread over a period of 7 days.

September Precipitation Trends in Aasiaat

The chart displays monthly precipitation patterns in Aasiaat, 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 Aasiaat, September typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec221017291219505726372625
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Aasiaat

In Aasiaat in September, humidity is 85%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable as you contend with the heavy, cold air surrounding you.

September Average Humidity in Aasiaat

This chart illustrates the average monthly humidity levels in Aasiaat, 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 Aasiaat is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%93%96%92%92%89%87%91%85%84%87%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Aasiaat

In Aasiaat in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Aasiaat, you can check the information here.

Maximum UV Index Levels in Aasiaat for September

The chart shows the monthly maximum UV Index (UVI) for Aasiaat 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 Aasiaat typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112345443110
Data source: Aasiaat 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 Aasiaat Compares to Other Months

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

This table compares monthly weather conditions in Aasiaat, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (12°F)22 mm (0.9 inches)95%low
February Weather-15°C (5°F)9 mm (0.4 inches)93%low
March Weather-13°C (9°F)17 mm (0.7 inches)96%low
April Weather-6°C (21°F)29 mm (1.2 inches)92%moderate
May Weather0°C (33°F)12 mm (0.5 inches)92%moderate
June Weather5°C (42°F)19 mm (0.7 inches)89%moderate
July Weather8°C (46°F)50 mm (2.0 inches)87%moderate
August Weather7°C (45°F)57 mm (2.3 inches)91%moderate
September Weather3°C (38°F)26 mm (1.0 inches)85%moderate
October Weather-1°C (31°F)37 mm (1.4 inches)84%low
November Weather-5°C (23°F)26 mm (1.0 inches)87%low
December Weather-7°C (20°F)25 mm (1.0 inches)90%low

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