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September Weather in Alachua, United States

Last updated: June 24, 2025

In September, the average temperature in Alachua, United States is a warm 27°C (80°F). The weather can vary, with minimums dipping to 17°C (63°F) and maximums soaring to 37°C (98°F). Expect around 117 mm (4.6 in) of precipitation spread over 14 days, contributing to an average humidity of 83%.

September Temperature in Alachua

In September in Alachua, the average temperature is 27°C (80°F), with maximums reaching up to 37°C (98°F) and minimums dropping as low as 17°C (63°F). It's an ideal time for travelers to enjoy warm weather and outdoor activities while staying prepared for warmer days.

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

The chart illustrates September temperature patterns in Alachua, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alachua, September typically has an average temperature of 27°C (80°F), with highs reaching up to 37°C (98°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec566365707780818180756459
Data source: Temperature data for Alachua 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 Alachua

In Alachua in September, the precipitation amount is 117 mm (4.6 in) spread over 14 days.

September Precipitation Trends in Alachua

The chart displays monthly precipitation patterns in Alachua, 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 Alachua, September typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec5465417892161183202117725995
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Alachua

In Alachua in September, humidity is 83%. With an average temperature of 27°C (80°F), this humidity feels like a warm, steamy embrace, making traveling a bit uncomfortable as the air clings to your skin and renders even the slightest exertion more exhausting.

September Average Humidity in Alachua

This chart illustrates the average monthly humidity levels in Alachua, 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 Alachua is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%78%77%75%76%79%78%83%81%83%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Alachua

In Alachua in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Alachua.

Maximum UV Index Levels in Alachua for September

The chart shows the monthly maximum UV Index (UVI) for Alachua 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 Alachua typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111111110975
Data source: Alachua 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 Alachua Compares to Other Months

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

This table compares monthly weather conditions in Alachua, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (56°F)54 mm (2.1 inches)83%moderate
February Weather17°C (63°F)65 mm (2.6 inches)82%very high
March Weather18°C (65°F)41 mm (1.6 inches)78%very high
April Weather21°C (70°F)78 mm (3.1 inches)77%extreme
May Weather25°C (77°F)92 mm (3.6 inches)75%extreme
June Weather27°C (80°F)161 mm (6.3 inches)76%extreme
July Weather27°C (81°F)183 mm (7.2 inches)79%extreme
August Weather27°C (81°F)202 mm (8.0 inches)78%extreme
September Weather27°C (80°F)117 mm (4.6 inches)83%very high
October Weather24°C (75°F)72 mm (2.8 inches)81%very high
November Weather18°C (64°F)59 mm (2.3 inches)83%high
December Weather15°C (59°F)95 mm (3.7 inches)86%moderate

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