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Weather in Hillsborough County for September 2025

Your guide to Hillsborough County weather in September - trends and predictions
  • In general, the average temperature in Hillsborough County at the beginning of September is 32.7 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 31.1 °F by the end of September.

  • Expect significant rainfall in Hillsborough County during September, with an average of 19 rainy days.

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Average dry days
11
Dry days
Average rainy days
19
Rainy days
Average snowy days
0
Snow days
Average temperatures
32°/24°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
69 %
Avg humidity

Hillsborough County in September average weather

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Temperatures trend during September in Hillsborough County

See the weather trend as well as the moving average line

September weather day by day

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Date Weather Temperatures Rain UV More
Sept. 1 Light rain shower
Light rain shower
32° /25° 6.2 mm 7
Sept. 2 Overcast
Overcast
32° /25° 2.2 mm 7
Sept. 3 Cloudy
Cloudy
32° /25° 1.8 mm 7
Sept. 4 Cloudy
Cloudy
34° /24° 3.5 mm 7
Sept. 5 Overcast
Overcast
33° /24° 2.6 mm 7
Sept. 6 Overcast
Overcast
33° /26° 0.1 mm 7
Sept. 7 Sunny
Sunny
33° /26° 2.1 mm 8
Sept. 8 Thundery outbreaks possible
Thundery outbreaks possible
32° /25° 5 mm 7
Sept. 9 Patchy rain possible
Patchy rain possible
32° /24° 3.1 mm 7
Sept. 10 Patchy rain possible
Patchy rain possible
32° /24° 2.8 mm 7
Sept. 11 Thundery outbreaks possible
Thundery outbreaks possible
32° /26° 10.4 mm 7
Sept. 12 Thundery outbreaks possible
Thundery outbreaks possible
34° /25° 1.1 mm 8
Sept. 13 Mist
Mist
32° /25° 1.2 mm 7
Sept. 14 Cloudy
Cloudy
32° /26° 2.7 mm 7
Sept. 15 Light rain shower
Light rain shower
32° /25° 3 mm 7
Sept. 16 Moderate or heavy rain shower
Moderate or heavy rain shower
32° /25° 14.1 mm 8
Sept. 17 Fog
Fog
32° /24° 0.8 mm 7
Sept. 18 Patchy light rain with thunder
Patchy light rain with thunder
31° /25° 36.2 mm 7
Sept. 19 Overcast
Overcast
31° /24° 0 mm 8
Sept. 20 Moderate or heavy rain shower
Moderate or heavy rain shower
31° /23° 6 mm 7
Sept. 21 Patchy rain possible
Patchy rain possible
33° /22° 13.8 mm 7
Sept. 22 Light drizzle
Light drizzle
32° /21° 0.1 mm 7
Sept. 23 Partly cloudy
Partly cloudy
33° /22° 0 mm 8
Sept. 24 Light rain shower
Light rain shower
33° /23° 3.5 mm 7
Sept. 25 Light rain shower
Light rain shower
32° /23° 48.7 mm 7
Sept. 26 Patchy light rain with thunder
Patchy light rain with thunder
30° /24° 25.9 mm 7
Sept. 27 Light rain shower
Light rain shower
31° /26° 25.1 mm 7
Sept. 28 Light rain shower
Light rain shower
30° /24° 13.3 mm 7
Sept. 29 Light rain shower
Light rain shower
31° /24° 15.2 mm 7
Sept. 30 Moderate or heavy rain shower
Moderate or heavy rain shower
31° /24° 4 mm 7
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Important Notice
Our weather forecast for Hillsborough County in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Hillsborough County forecast closer to your planned date for the most up-to-date weather information.

Hillsborough County in September - FAQ

What are the expected maximum and minimum temperatures in Hillsborough County during September?
During September, expect a variety of temperatures with highs around 32° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hillsborough County during September?
Significant rainfall exceeding 143.1 mm is expected in Hillsborough County during September, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Hillsborough County during September?
The average wind speed in Hillsborough County during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Hillsborough County

Explore the daily rainfall trends and prepare for Hillsborough Countys September weather 💧

UV exposure in Hillsborough County during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Hillsborough County?

Get accurate weather forecasts for Hillsborough County, located at latitude 27.948 and longitude -82.458. Stay updated with localized weather information tailored for Hillsborough County.

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