September Weather in Descanso, United States

Last updated: June 24, 2025

In Descanso, United States, the average temperature in September reaches a pleasant 23°C (73°F). However, temperatures can vary significantly, with minimums dropping to 7°C (45°F) and maximums soaring to 42°C (108°F). Expect light rainfall, with an average precipitation of 12 mm (0.5 in) over 2 days, and a moderate humidity level of 52% to complete the climate profile.

September Temperature in Descanso

In September in Descanso, the average temperature is 23°C (73°F). Maximum temperatures can reach up to 42°C (108°F), while minimum temperatures can dip as low as 7°C (45°F). This variation in temperatures suggests that travelers should be prepared for both warm days and cooler nights.

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

The chart illustrates September temperature patterns in Descanso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Descanso, September typically has an average temperature of 23°C (73°F), with highs reaching up to 42°C (108°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec505051576170767773645850
Data source: Temperature data for Descanso 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 Descanso

In Descanso in September, the precipitation amount is 12 mm (0.5 in) over the course of 2 days.

September Precipitation Trends in Descanso

The chart displays monthly precipitation patterns in Descanso, 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 Descanso, September typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec50665018162171412112353
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Descanso

In Descanso in September humidity is 52%. With an average temperature of 23°C (73°F), this humidity feels like a comfortable embrace, making it pleasant for traveling as you can enjoy outdoor activities without feeling overheated or sticky.

September Average Humidity in Descanso

This chart illustrates the average monthly humidity levels in Descanso, 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 Descanso is approximately 52%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%77%67%56%46%48%46%42%52%58%66%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Descanso

In Descanso in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Descanso.

Maximum UV Index Levels in Descanso for September

The chart shows the monthly maximum UV Index (UVI) for Descanso 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 Descanso typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111212121211854
Data source: Descanso 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 Descanso Compares to Other Months

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

This table compares monthly weather conditions in Descanso, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)50 mm (2.0 inches)72%moderate
February Weather10°C (50°F)66 mm (2.6 inches)77%high
March Weather11°C (52°F)50 mm (2.0 inches)67%very high
April Weather14°C (58°F)18 mm (0.7 inches)56%extreme
May Weather16°C (61°F)16 mm (0.6 inches)46%extreme
June Weather21°C (70°F)2 mm (0.1 inches)48%extreme
July Weather24°C (76°F)17 mm (0.7 inches)46%extreme
August Weather25°C (77°F)14 mm (0.6 inches)42%extreme
September Weather23°C (73°F)12 mm (0.5 inches)52%extreme
October Weather18°C (65°F)11 mm (0.4 inches)58%very high
November Weather14°C (58°F)23 mm (0.9 inches)66%moderate
December Weather10°C (50°F)53 mm (2.1 inches)74%moderate

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