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September Weather in Downs, United States

Last updated: June 24, 2025

In September, the average temperature in Downs, United States is a pleasant 22°C (72°F). Expect minimum temperatures to dip to 5°C (41°F) and warm days reaching up to 38°C (100°F). This month also brings about 59 mm (2.3 in) of precipitation spread over 6 days, with average humidity sitting at a comfortable 73%. Get ready for a month of varied weather!

September Temperature in Downs

In September in Downs, the average temperature is 22°C (72°F). Maximums can reach 38°C (100°F) and minimums can be as low as 5°C (41°F). This variation makes it essential for travelers to pack both lightweight clothing for the warm days and warmer layers for the cooler evenings.

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

The chart illustrates September temperature patterns in Downs, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Downs, September typically has an average temperature of 22°C (72°F), with highs reaching up to 38°C (100°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec303044536478817772554335
Data source: Temperature data for Downs 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 Downs

In Downs in September, the precipitation amount is 59 mm (2.3 in) over the course of 6 days.

September Precipitation Trends in Downs

The chart displays monthly precipitation patterns in Downs, 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 Downs, September typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec2523694416756749659692236
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Downs

In Downs in September, humidity is 73%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace that can make outdoor activities feel sticky and heavy, so it's best to stay hydrated and take frequent breaks while exploring.

September Average Humidity in Downs

This chart illustrates the average monthly humidity levels in Downs, 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 Downs is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%78%67%70%82%81%80%80%74%71%79%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Downs

In Downs in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Downs.

Maximum UV Index Levels in Downs for September

The chart shows the monthly maximum UV Index (UVI) for Downs 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 Downs typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Downs 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 Downs Compares to Other Months

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

This table compares monthly weather conditions in Downs, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)25 mm (1.0 inches)74%moderate
February Weather-1°C (31°F)23 mm (0.9 inches)78%moderate
March Weather7°C (45°F)69 mm (2.7 inches)67%high
April Weather12°C (54°F)43 mm (1.7 inches)70%very high
May Weather18°C (65°F)167 mm (6.6 inches)82%very high
June Weather26°C (78°F)56 mm (2.2 inches)81%extreme
July Weather27°C (82°F)74 mm (2.9 inches)80%extreme
August Weather25°C (78°F)96 mm (3.8 inches)80%very high
September Weather22°C (72°F)59 mm (2.3 inches)73%very high
October Weather13°C (55°F)69 mm (2.7 inches)71%high
November Weather6°C (44°F)22 mm (0.8 inches)79%moderate
December Weather2°C (35°F)36 mm (1.4 inches)83%moderate

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