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September Weather in Sandy, United States

Last updated: June 24, 2025

In September, the average temperature in Sandy, United States is a mild 16°C (62°F), with a minimum dipping to 4°C (39°F) and a maximum soaring up to 35°C (96°F). Expect about 114 mm (4.5 in) of precipitation spread over 9 days, accompanied by an average humidity of 59%, creating a pleasant yet dynamic climate.

September Temperature in Sandy

In September in Sandy, the average temperature is 16°C (62°F). Maximum temperatures can reach as high as 35°C (96°F), while minimums can drop to around 4°C (39°F). When traveling during this month, be sure to pack both light clothing for the warmth and layers for the cooler evenings.

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

The chart illustrates September temperature patterns in Sandy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sandy, September typically has an average temperature of 16°C (62°F), with highs reaching up to 35°C (96°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec393843495561666861514539
Data source: Temperature data for Sandy 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 Sandy

In Sandy in September, the precipitation amount is 114 mm (4.5 in) over the course of 9 days.

September Precipitation Trends in Sandy

The chart displays monthly precipitation patterns in Sandy, 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 Sandy, September typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec25831019918397831215114229276297
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sandy

In Sandy in September, humidity is 59%. With an average temperature of 16°C (62°F), this humidity feels like a refreshing embrace that adds a layer of comfort, making it ideal for leisurely exploration and outdoor activities.

September Average Humidity in Sandy

This chart illustrates the average monthly humidity levels in Sandy, 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 Sandy is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%86%85%80%82%79%63%59%78%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sandy

In Sandy in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Sandy.

Maximum UV Index Levels in Sandy for September

The chart shows the monthly maximum UV Index (UVI) for Sandy 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 Sandy typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356991087532
Data source: Sandy 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 Sandy Compares to Other Months

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

This table compares monthly weather conditions in Sandy, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)258 mm (10.1 inches)86%low
February Weather3°C (38°F)310 mm (12.2 inches)87%moderate
March Weather6°C (44°F)199 mm (7.8 inches)86%moderate
April Weather9°C (49°F)183 mm (7.2 inches)85%high
May Weather13°C (56°F)97 mm (3.8 inches)80%very high
June Weather16°C (61°F)83 mm (3.3 inches)82%very high
July Weather19°C (67°F)11 mm (0.5 inches)78%very high
August Weather20°C (68°F)15 mm (0.6 inches)62%very high
September Weather16°C (62°F)114 mm (4.5 inches)59%high
October Weather10°C (51°F)229 mm (9.0 inches)78%moderate
November Weather7°C (45°F)276 mm (10.9 inches)88%moderate
December Weather4°C (40°F)297 mm (11.7 inches)88%low

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