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September Weather in Winter Haven, United States

Last updated: June 24, 2025

The average temperature in Winter Haven, United States during September is a warm 27°C (81°F). Expect a minimum of 19°C (66°F) and a maximum soaring up to 34°C (94°F). However, brace yourself for 189 mm (7.4 in) of precipitation spread over 21 days, leading to an average humidity of 83%. Prepare for a sultry and wet month ahead!

September Temperature in Winter Haven

In September in Winter Haven, the average temperature is 27°C (81°F). The maximum can reach 34°C (94°F), and the minimum can be as low as 19°C (66°F). This warm climate makes Winter Haven an ideal destination for travelers seeking pleasant weather and outdoor activities.

September Weather in Winter Haven: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Winter Haven, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winter Haven, September typically has an average temperature of 27°C (81°F), with highs reaching up to 34°C (94°F) and lows dropping to around 19°C (66°F).
JanFebMarAprMayJunJulAugSepOctNovDec626869747881818281786964
Data source: Temperature data for Winter Haven 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 Winter Haven

In Winter Haven in September, the total precipitation amount is 189 mm (7.4 in), spread over a period of 21 days.

September Precipitation Trends in Winter Haven

The chart displays monthly precipitation patterns in Winter Haven, 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 Winter Haven, September typically receives around 189 mm (7.4 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec38521666127226246239189794256
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Winter Haven

In Winter Haven in September humidity is 83%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket enveloping you, making sightseeing and outdoor activities feel more exhausting and requiring frequent breaks to relax in the shade or cool off.

September Average Humidity in Winter Haven

This chart illustrates the average monthly humidity levels in Winter Haven, 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 Winter Haven is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%80%75%68%65%73%77%80%83%83%83%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Winter Haven

In Winter Haven in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Winter Haven.

Maximum UV Index Levels in Winter Haven for September

The chart shows the monthly maximum UV Index (UVI) for Winter Haven 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 Winter Haven typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6810111112121211975
Data source: Winter Haven 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 Winter Haven Compares to Other Months

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

This table compares monthly weather conditions in Winter Haven, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (62°F)38 mm (1.5 inches)83%high
February Weather20°C (68°F)52 mm (2.0 inches)80%very high
March Weather21°C (70°F)16 mm (0.6 inches)75%very high
April Weather23°C (74°F)66 mm (2.6 inches)68%extreme
May Weather26°C (79°F)127 mm (5.0 inches)65%extreme
June Weather27°C (81°F)226 mm (8.9 inches)73%extreme
July Weather27°C (82°F)246 mm (9.7 inches)77%extreme
August Weather28°C (82°F)239 mm (9.4 inches)80%extreme
September Weather27°C (81°F)189 mm (7.4 inches)83%extreme
October Weather25°C (78°F)79 mm (3.1 inches)83%very high
November Weather21°C (69°F)42 mm (1.7 inches)83%high
December Weather18°C (65°F)56 mm (2.2 inches)84%moderate

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