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September Weather in Groveland, United States

Last updated: June 24, 2025

In September, the average temperature in Groveland, United States is a pleasant 22°C (73°F). Daytime highs can soar to a sizzling 40°C (105°F), while chilly nights can drop to around 7°C (45°F). With only 3 mm (0.1 in) of precipitation spread across 0 days, you can expect plenty of sunshine and a comfortable average humidity of 55% to enjoy your time outdoors!

September Temperature in Groveland

In September in Groveland, the average temperature is 22°C (73°F). The maximum can reach 40°C (105°F), while the minimum can drop to as low as 7°C (45°F). This diverse range of temperatures makes it advisable to pack layers for your trip.

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

The chart illustrates September temperature patterns in Groveland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Groveland, September typically has an average temperature of 22°C (73°F), with highs reaching up to 40°C (105°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec464751576373807972625246
Data source: Temperature data for Groveland 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 Groveland

In Groveland in September, the precipitation amount is 3 mm (0.1 in) during a total of 0 days.

September Precipitation Trends in Groveland

The chart displays monthly precipitation patterns in Groveland, 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 Groveland, September typically receives around 3 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec175164188724630133473132
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Groveland

In Groveland in September humidity is 55%. With an average temperature of 22°C (73°F), this humidity feels like a refreshing embrace, making it comfortable for traveling as long as you stay hydrated and take breaks in the shade.

September Average Humidity in Groveland

This chart illustrates the average monthly humidity levels in Groveland, 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 Groveland is approximately 55%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Groveland

In Groveland 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 Groveland.

Maximum UV Index Levels in Groveland for September

The chart shows the monthly maximum UV Index (UVI) for Groveland 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 Groveland typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111109743
Data source: Groveland 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 Groveland Compares to Other Months

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

This table compares monthly weather conditions in Groveland, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)175 mm (6.9 inches)82%moderate
February Weather8°C (47°F)164 mm (6.5 inches)84%moderate
March Weather10°C (51°F)188 mm (7.4 inches)82%very high
April Weather14°C (57°F)72 mm (2.8 inches)78%very high
May Weather17°C (64°F)46 mm (1.8 inches)71%very high
June Weather23°C (73°F)3 mm (0.1 inches)64%extreme
July Weather27°C (80°F)0 mm (0.0 inches)58%extreme
August Weather26°C (79°F)1 mm (0.0 inches)54%very high
September Weather22°C (73°F)3 mm (0.1 inches)55%very high
October Weather16°C (62°F)34 mm (1.3 inches)62%high
November Weather11°C (53°F)73 mm (2.9 inches)78%moderate
December Weather8°C (46°F)132 mm (5.2 inches)80%moderate

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