September Weather in Mountain Park, United States

Last updated: June 24, 2025

The average temperature in Mountain Park, United States during September is a warm 24°C (75°F), with minimums dipping to 10°C (50°F) and maximums soaring up to 36°C (97°F). Expect 113 mm (4.4 in) of precipitation spread over 9 days, contributing to a comfortable average humidity of 82%.

September Temperature in Mountain Park

In September in Mountain Park, the average temperature is 24°C (75°F). The maximum can reach 36°C (97°F), while the minimum can be as low as 10°C (50°F). Whether you're looking to enjoy warm days or cool evenings, this climate provides a comfortable backdrop for exploring and enjoying all that Mountain Park has to offer.

September Weather in Mountain Park: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mountain Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mountain Park, September typically has an average temperature of 24°C (75°F), with highs reaching up to 36°C (97°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec455156627176797875665248
Data source: Temperature data for Mountain Park 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 Mountain Park

In Mountain Park in September, the precipitation amount is 113 mm (4.4 in) over a period of 9 days.

September Precipitation Trends in Mountain Park

The chart displays monthly precipitation patterns in Mountain Park, 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 Mountain Park, September typically receives around 113 mm (4.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec10514712912110112711314511312380137
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mountain Park

In Mountain Park in September, humidity is 82%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making travel feel sticky and heavy on the skin, often requiring more frequent breaks and hydration.

September Average Humidity in Mountain Park

This chart illustrates the average monthly humidity levels in Mountain Park, 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 Mountain Park is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%81%81%81%83%81%82%78%86%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mountain Park

In Mountain Park 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 Mountain Park.

Maximum UV Index Levels in Mountain Park for September

The chart shows the monthly maximum UV Index (UVI) for Mountain Park 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 Mountain Park typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47811111111109864
Data source: Mountain Park 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 Mountain Park Compares to Other Months

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

This table compares monthly weather conditions in Mountain Park, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (46°F)105 mm (4.1 inches)86%moderate
February Weather11°C (51°F)147 mm (5.8 inches)84%high
March Weather13°C (56°F)129 mm (5.1 inches)83%very high
April Weather17°C (62°F)121 mm (4.8 inches)81%extreme
May Weather22°C (71°F)100 mm (4.0 inches)81%extreme
June Weather24°C (76°F)127 mm (5.0 inches)81%extreme
July Weather26°C (80°F)113 mm (4.4 inches)83%extreme
August Weather26°C (79°F)145 mm (5.7 inches)81%very high
September Weather24°C (75°F)113 mm (4.4 inches)82%very high
October Weather19°C (66°F)123 mm (4.9 inches)78%very high
November Weather11°C (52°F)80 mm (3.1 inches)86%high
December Weather9°C (48°F)137 mm (5.4 inches)89%moderate

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