nomadseason

September Weather in Marriott-Slaterville, United States

Last updated: June 24, 2025

The average temperature in Marriott-Slaterville, United States during September is a comfortable 18°C (64°F), but you can expect a range with a minimum of 2°C (36°F) and a maximum of 34°C (93°F). This month sees an average precipitation of 30 mm (1.2 in) spread over approximately 3 days, while the average humidity hovers around 46%. Prepare for a blend of pleasant days and the occasional shower!

September Temperature in Marriott-Slaterville

In September in Marriott-Slaterville, the average temperature is 18°C (64°F). Maximums can reach 34°C (93°F), while minimums can drop to as low as 2°C (36°F). Be sure to pack layers for your trip to Marriott-Slaterville in September to stay comfortable in the fluctuating temperatures.

September Weather in Marriott-Slaterville: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Marriott-Slaterville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marriott-Slaterville, September typically has an average temperature of 18°C (64°F), with highs reaching up to 34°C (93°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec262938465668777464473827
Data source: Temperature data for Marriott-Slaterville 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 Marriott-Slaterville

In Marriott-Slaterville in September, the precipitation amount is 30 mm (1.2 in) over the course of 3 days.

September Precipitation Trends in Marriott-Slaterville

The chart displays monthly precipitation patterns in Marriott-Slaterville, 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 Marriott-Slaterville, September typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec596954645318101730434351
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Marriott-Slaterville

In Marriott-Slaterville in September humidity is 46%. With an average temperature of 18°C (64°F), this humidity feels like a pleasant and comfortable experience for traveling, allowing for enjoyable outdoor activities without feeling overly sticky or oppressive.

September Average Humidity in Marriott-Slaterville

This chart illustrates the average monthly humidity levels in Marriott-Slaterville, 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 Marriott-Slaterville is approximately 46%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%84%75%62%56%44%37%46%67%84%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Marriott-Slaterville

In Marriott-Slaterville 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 Marriott-Slaterville.

Maximum UV Index Levels in Marriott-Slaterville for September

The chart shows the monthly maximum UV Index (UVI) for Marriott-Slaterville 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 Marriott-Slaterville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Marriott-Slaterville 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 Marriott-Slaterville Compares to Other Months

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

This table compares monthly weather conditions in Marriott-Slaterville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)58 mm (2.3 inches)91%moderate
February Weather-2°C (30°F)69 mm (2.7 inches)92%moderate
March Weather3°C (38°F)54 mm (2.1 inches)84%high
April Weather8°C (47°F)64 mm (2.5 inches)74%very high
May Weather13°C (56°F)53 mm (2.1 inches)62%very high
June Weather20°C (69°F)18 mm (0.7 inches)56%extreme
July Weather25°C (77°F)10 mm (0.4 inches)44%extreme
August Weather23°C (74°F)17 mm (0.7 inches)37%very high
September Weather18°C (64°F)30 mm (1.2 inches)46%very high
October Weather9°C (48°F)43 mm (1.7 inches)67%high
November Weather3°C (38°F)43 mm (1.7 inches)84%moderate
December Weather-3°C (27°F)51 mm (2.0 inches)88%moderate

Compare Marriott-Slaterville's Climate with Cities Worldwide