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September Weather in Dundee, United States

Last updated: June 24, 2025

In September, the average temperature in Dundee, United States hovers around 18°C (64°F). Expect a range that dips to a cool 4°C (40°F) and can soar up to a warm 32°C (90°F). During this month, you'll typically experience 84 mm (3.3 in) of precipitation over 9 days. With an average humidity of 78%, get ready for a refreshing yet mild atmosphere!

September Temperature in Dundee

In September in Dundee, the average temperature is 18°C (64°F). Maximums can reach 32°C (90°F), and minimums can be as low as 4°C (40°F). This makes it an ideal time for travelers to enjoy a mix of warm and cooler weather, perfect for various outdoor activities.

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

The chart illustrates September temperature patterns in Dundee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dundee, September typically has an average temperature of 18°C (64°F), with highs reaching up to 32°C (90°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec262835455767727064543932
Data source: Temperature data for Dundee 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 Dundee

In Dundee in September, the precipitation amount is 84 mm (3.3 in) spread over 9 days.

September Precipitation Trends in Dundee

The chart displays monthly precipitation patterns in Dundee, 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 Dundee, September typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7182761111199513989841388386
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dundee

In Dundee in September, humidity is 78%. With an average temperature of 18°C (64°F), this humidity feels like a warm, thick blanket wrapping around you, making traveling feel a bit sticky and sluggish, yet the coolness of the air tempers the intensity, inviting you to explore at a leisurely pace.

September Average Humidity in Dundee

This chart illustrates the average monthly humidity levels in Dundee, 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 Dundee is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dundee

In Dundee in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Dundee.

Maximum UV Index Levels in Dundee for September

The chart shows the monthly maximum UV Index (UVI) for Dundee 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 Dundee typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810101098642
Data source: Dundee 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 Dundee Compares to Other Months

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

This table compares monthly weather conditions in Dundee, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)71 mm (2.8 inches)90%moderate
February Weather-2°C (28°F)82 mm (3.2 inches)90%moderate
March Weather1°C (35°F)76 mm (3.0 inches)87%high
April Weather7°C (46°F)111 mm (4.4 inches)88%very high
May Weather14°C (57°F)119 mm (4.7 inches)82%very high
June Weather19°C (67°F)95 mm (3.7 inches)79%very high
July Weather22°C (72°F)139 mm (5.5 inches)78%very high
August Weather21°C (71°F)89 mm (3.5 inches)76%very high
September Weather18°C (64°F)84 mm (3.3 inches)78%very high
October Weather12°C (54°F)138 mm (5.4 inches)84%high
November Weather4°C (40°F)83 mm (3.3 inches)89%moderate
December Weather0°C (32°F)86 mm (3.4 inches)86%low

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