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September Weather in Cypress Hills, United States

Last updated: June 24, 2025

In September, the average temperature in Cypress Hills, United States hovers around 21°C (70°F), making it a pleasant time to visit. The temperature can dip to a minimum of 9°C (49°F) and can soar up to a maximum of 33°C (92°F). Visitors should be prepared for some rain, as precipitation averages 92 mm (3.6 in) over 9 days, and the average humidity rests at a comfortable 68%.

September Temperature in Cypress Hills

In September in Cypress Hills, the average temperature is 21°C (70°F), with maximums reaching up to 33°C (92°F) and minimums dropping as low as 9°C (49°F). This mild climate makes Cypress Hills an ideal destination for travelers seeking comfortable weather for outdoor activities.

September Weather in Cypress Hills: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cypress Hills, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cypress Hills, September typically has an average temperature of 21°C (70°F), with highs reaching up to 33°C (92°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec343642526272787670604638
Data source: Temperature data for Cypress Hills 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 Cypress Hills

In Cypress Hills in September, the precipitation amount is 92 mm (3.6 in) during 9 days, indicating a relatively wet period for the region.

September Precipitation Trends in Cypress Hills

The chart displays monthly precipitation patterns in Cypress Hills, 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 Cypress Hills, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec6710298112114921481279212883106
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cypress Hills

In Cypress Hills in September humidity is 68%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making the air feel slightly heavy and sticky, which can be quite exhausting for travelers.

September Average Humidity in Cypress Hills

This chart illustrates the average monthly humidity levels in Cypress Hills, 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 Cypress Hills is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cypress Hills

In Cypress Hills 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 Cypress Hills.

Maximum UV Index Levels in Cypress Hills for September

The chart shows the monthly maximum UV Index (UVI) for Cypress Hills 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 Cypress Hills typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: Cypress Hills 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 Cypress Hills Compares to Other Months

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

This table compares monthly weather conditions in Cypress Hills, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)67 mm (2.7 inches)84%moderate
February Weather2°C (36°F)102 mm (4.0 inches)82%moderate
March Weather5°C (42°F)98 mm (3.8 inches)81%high
April Weather11°C (52°F)112 mm (4.4 inches)78%very high
May Weather17°C (62°F)114 mm (4.5 inches)69%very high
June Weather22°C (72°F)92 mm (3.6 inches)69%very high
July Weather26°C (78°F)148 mm (5.8 inches)62%very high
August Weather25°C (76°F)127 mm (5.0 inches)65%very high
September Weather21°C (70°F)92 mm (3.6 inches)68%very high
October Weather16°C (61°F)128 mm (5.0 inches)74%high
November Weather8°C (47°F)83 mm (3.3 inches)82%moderate
December Weather4°C (39°F)106 mm (4.2 inches)80%low

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