nomadseason

September Weather in Sandy, United States

Last updated: June 24, 2025

In September, the average temperature in Sandy, United States is a pleasant 18°C (64°F), with a minimum dipping to 2°C (35°F) and reaching a maximum of 31°C (88°F). Expect about 121 mm (4.8 in) of precipitation spread over 11 days during this month, contributing to an average humidity of 67%.

September Temperature in Sandy

In September in Sandy, the average temperature is 18°C (64°F). Maximums can reach 31°C (88°F), and minimums can drop as low as 2°C (35°F). Whether you're exploring the great outdoors or enjoying the local culture, be prepared for a diverse range of weather conditions for your travels.

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 18°C (64°F), with highs reaching up to 31°C (88°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec273138485967727064543933
Data source: Temperature data for Sandy generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Sandy

In Sandy in September, the total precipitation amount is 121 mm (4.8 in), which occurs over the course of 11 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 121 mm (4.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec941211011311501271219912111694105
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Sandy

In Sandy in September humidity is 67%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel quite comfortable but slightly sticky, encouraging lightweight clothing and the occasional refreshing break in the shade.

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 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%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 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 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101010108642
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 Weather-3°C (28°F)93 mm (3.7 inches)89%moderate
February Weather-1°C (31°F)121 mm (4.8 inches)90%moderate
March Weather3°C (38°F)101 mm (4.0 inches)89%high
April Weather9°C (48°F)131 mm (5.1 inches)88%very high
May Weather15°C (59°F)150 mm (5.9 inches)80%very high
June Weather19°C (67°F)127 mm (5.0 inches)79%very high
July Weather22°C (72°F)121 mm (4.8 inches)74%very high
August Weather21°C (71°F)99 mm (3.9 inches)64%very high
September Weather18°C (64°F)121 mm (4.8 inches)67%very high
October Weather12°C (54°F)116 mm (4.6 inches)81%high
November Weather4°C (39°F)94 mm (3.7 inches)89%moderate
December Weather1°C (33°F)105 mm (4.1 inches)88%low

Compare Sandy's Climate with Cities Worldwide