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September Weather in Mary Esther, United States

Last updated: June 24, 2025

In September, the average temperature in Mary Esther, United States is a comfortable 26°C (80°F). However, be prepared for temperature fluctuations, with a minimum drop to 15°C (58°F) and peaks soaring up to 37°C (98°F). Visitors can expect about 152 mm (6.0 in) of precipitation over 14 days, paired with an average humidity of 79%, creating a tropical atmosphere. Plan accordingly to enjoy your stay!

September Temperature in Mary Esther

In September in Mary Esther, the average temperature is 26°C (80°F), with maximums reaching up to 37°C (98°F) and minimums dropping as low as 15°C (58°F). This pleasant climate makes Mary Esther an ideal destination for travelers seeking warm weather and outdoor activities.

September Weather in Mary Esther: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mary Esther, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mary Esther, September typically has an average temperature of 26°C (80°F), with highs reaching up to 37°C (98°F) and lows dropping to around 15°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec546063687580828279736057
Data source: Temperature data for Mary Esther 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 Mary Esther

In Mary Esther in September, the precipitation amount is 152 mm (6.0 in) over a span of 14 days.

September Precipitation Trends in Mary Esther

The chart displays monthly precipitation patterns in Mary Esther, 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 Mary Esther, September typically receives around 152 mm (6.0 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec871136613210419616417415212244120
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mary Esther

In Mary Esther in September, humidity is 79%. With an average temperature of 26°C (80°F), this humidity feels like an enveloping warm blanket, making travel feel slightly sluggish and prompting frequent hydration breaks to stay comfortable while exploring the sights.

September Average Humidity in Mary Esther

This chart illustrates the average monthly humidity levels in Mary Esther, 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 Mary Esther is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%79%77%74%70%78%78%79%74%83%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mary Esther

In Mary Esther 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 Mary Esther.

Maximum UV Index Levels in Mary Esther for September

The chart shows the monthly maximum UV Index (UVI) for Mary Esther 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 Mary Esther typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111121110864
Data source: Mary Esther 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 Mary Esther Compares to Other Months

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

This table compares monthly weather conditions in Mary Esther, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)87 mm (3.4 inches)83%moderate
February Weather15°C (60°F)112 mm (4.4 inches)82%very high
March Weather17°C (64°F)66 mm (2.6 inches)79%very high
April Weather20°C (68°F)131 mm (5.2 inches)77%extreme
May Weather24°C (75°F)104 mm (4.1 inches)74%extreme
June Weather27°C (81°F)196 mm (7.7 inches)70%extreme
July Weather28°C (82°F)164 mm (6.5 inches)78%extreme
August Weather28°C (82°F)174 mm (6.9 inches)78%extreme
September Weather26°C (80°F)152 mm (6.0 inches)79%very high
October Weather23°C (73°F)122 mm (4.8 inches)74%very high
November Weather16°C (61°F)44 mm (1.7 inches)83%high
December Weather14°C (57°F)120 mm (4.7 inches)86%moderate

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