September Weather in Manasota Key, United States

Last updated: February 24, 2025

In September, Manasota Key experiences a tropical climate with maximum temperatures reaching up to 34°C (94°F) and an average of 28°C (82°F), providing warm and inviting days. The minimum temperature often drops to 22°C (72°F), ensuring comfortably cool nights. However, this month is notable for its high humidity at 83% and significant rainfall, accumulating 160 mm (6.3 in) over approximately 19 days. Visitors can expect a mix of sunshine and periodic showers, making it essential to be prepared for both beach days and refreshing tropical bursts.

September Temperature in Manasota Key

In September, Manasota Key basks in warm tropical temperatures as summer gradually transitions to fall. The month boasts minimum temperatures around 22°C (72°F) and an average of 28°C (82°F), reaching up to a maximum of 34°C (94°F). This warmth is consistent with the preceding summer months, where temperatures hovered in a similar range. With the changing season, the pleasant evening temperatures offer a refreshing respite from the daytime heat. This lingering warmth makes September an ideal time to enjoy the stunning beaches and vibrant sunsets that the region is known for, before the cooler autumn air sets in.

September Weather in Manasota Key: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Manasota Key, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec646870757981828282807267
Data source: Temperature data for Manasota Key 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 Manasota Key

September in Manasota Key brings a significant shift in precipitation patterns, with an average of 160 mm (6.3 in) of rain over 19 days. This marks a peak in rainfall as the region transitions from the wetter summer months of July and August, both of which recorded over 200 mm of precipitation. However, September's precipitation is notably lower than the heights of June and July, indicating a gradual decline as the area moves into the drier fall season. Despite this reduction, the wet days in September are still considerable, reflecting the lingering summer climate. As autumn approaches, residents can expect fewer showers but should remain prepared for the occasional downpour that September often delivers.

September Precipitation Trends in Manasota Key

The chart displays monthly precipitation patterns in Manasota Key, 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.
JanFebMarAprMayJunJulAugSepOctNovDec35392247124177206205160734157
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Manasota Key

In September, Manasota Key experiences a return to higher humidity levels, reaching 83%, which mirrors both the start of the year and the trend seen in October and November. This month marks the end of the summer season, where humidity levels had peaked during the hot and steamy summer months, with August also recorded at 80%. Notably, despite the slight fluctuations throughout the year, humidity remains relatively consistent, hovering between the 65% of May and the higher figures in the winter months, which rarely dip below 80%. As the year progresses into the fall, residents can enjoy the soothing warmth of early autumn, accompanied by the familiar, comforting humidity that defines this coastal paradise.

September Average Humidity in Manasota Key

This chart illustrates the average monthly humidity levels in Manasota Key, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
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 Manasota Key

In September, Manasota Key experiences an UV Index of 11, maintaining its extreme exposure category and a burn time of just 10 minutes. This trend of high UV levels persists through the late summer months, with the index typically peaking at 12 from May to August. As the year transitions into fall, there is a slight drop to October's UV Index of 9, yet safety precautions remain crucial as UV rays can still pose significant risks. Being aware of these seasonal patterns can help residents and visitors alike enjoy the beautiful sunshine while protecting their skin. For more information, check out the detailed guide at Manasota Key UV Index.

Maximum UV Index Levels in Manasota Key for September

The chart shows the monthly maximum UV Index (UVI) for Manasota Key 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.
JanFebMarAprMayJunJulAugSepOctNovDec6810111212121111975
Data source: Manasota Key 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.

September Sunshine in Manasota Key

In September, Manasota Key continues to bask in the glow of abundant sunshine, enjoying an impressive 314 hours of sunlight, which is a strong finish to the summer months. This aligns with the region's trend of gradually decreasing daylight as fall approaches, yet September remains one of the sunniest months of the year. Following the warmth of August and its 324 hours, this slight dip in sunshine hours is minor compared to the sun-soaked days of May and June. As the year transitions into its final quarter, residents and visitors alike can appreciate the lingering warmth in the air while still relishing longer days of summer's embrace before the milder temperatures of autumn set in.

Monthly Sunshine Duration in Manasota Key: September Highlighted

The September sunshine duration represents the total number of hours Manasota Key experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec221h273h326h323h333h304h328h324h314h302h280h281h
Data source: Manasota Key September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Manasota Key During September

In Manasota Key, September tends to be a transitional month for sunny weather, with a 34% chance of sunshine. This marks a notable decline from the brighter days of spring and summer, where the likelihood of sun peaks, reaching 64% in April. Following this peak, the summer months (June, July, and August) see a significant drop, with chances plummeting to as low as 17%. As fall approaches, October begins to rebound with a 48% chance of sunny days, suggesting that while September may be less favorable, the transition into autumn brings renewed promise of clearer skies. Overall, those looking for sunny weather may want to consider this month as a time to enjoy the occasional sunbeam amidst a backdrop of shifting seasonal patterns.

Percentage of Sunny Days in September in Manasota Key

The chart illustrates the percentage of sunny days in Manasota Key throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Manasota Key experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%59%57%64%57%19%21%17%34%48%52%61%
Data source: Manasota Key September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Manasota Key in September

As summer gradually transitions to autumn in Manasota Key, September offers a delightful balance of daylight, with the sun illuminating the sky for approximately 12 hours each day. This slight reduction from the peak of 13 hours enjoyed in the preceding months reflects a subtle shift towards shorter days, typical of the changing seasons. Following the vibrancy of late summer, September retains a generous amount of sunlight, allowing residents and visitors to soak in the late-summer warmth while embracing the early signs of fall. The days will continue to shorten in the coming months, with October bringing 11 hours of daylight, but for now, September encapsulates a perfect blend of lingering summer brightness and the exciting approach of autumn.

Average Daylight Hours in Manasota Key for September

The chart illustrates the variation in daylight duration in Manasota Key throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 38m11h 14m12h 1m12h 48m13h 28m13h 47m13h 37m13h 2m12h 16m11h 28m10h 47m10h 27m
Data source: Manasota Key daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Manasota Key

As summer transitions to fall, September in Manasota Key offers a gentle reprieve with an average wind speed of just 2.6 m/s (6 mph). This marks the lowest wind speed of the year, providing a serene atmosphere that contrasts with the breezier months preceding it. Following a gradual decline since May, where winds peaked at a stable 4.1 m/s (9 mph), September's calmer conditions invite outdoor relaxation, perfect for enjoying the tranquil beaches. Notably, the wind begins to pick up again in October, hinting at the seasonal shift ahead. Embracing the subtle breezes of September can enhance the island experience, as the landscape shifts into the embrace of autumn.

Average September Wind Speed in Manasota Key

The chart displays monthly wind speed patterns in Manasota Key, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.84.44.14.14.13.42.93.22.6 m/s3.53.82.9
Data source: Manasota Key September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Manasota Key Compares to Other Months

The weather in Manasota Key changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Manasota Key and find detailed weather information for every month.

September and January present strikingly contrasting weather patterns. In September, temperatures range widely from a minimum of 22°C (72°F) to a maximum of 34°C (94°F), accompanied by significant precipitation totaling 160 mm (6.3 in) over 19 days, creating a humid environment with a consistent 83% humidity. In contrast, January experiences much cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 27°C (81°F), and drastically reduced rainfall of only 35 mm (1.4 in) over just 3 days, while maintaining the same high humidity level. For more details on January weather, you can check Manasota Key weather in January.

September and February present strikingly different weather patterns. In September, temperatures range from a minimum of 22°C (72°F) to a maximum of 34°C (94°F), with an average of 28°C (82°F). The month is also characterized by significant rainfall, averaging 160 mm (6.3 in) over 19 days, and a high humidity of 83%. In contrast, February offers a much cooler climate, with temperatures ranging from a low of 5°C (41°F) to a high of 29°C (84°F) and an average of 20°C (69°F). The month sees considerably less precipitation at 39 mm (1.5 in) over just 4 days, along with a slightly lower humidity of 80%. For more detailed information, visit Manasota Key weather in February.

In comparing the weather of September and March, September tends to be significantly warmer and more humid. With average temperatures ranging from a minimum of 22°C (72°F) to a maximum of 34°C (94°F), the month features higher humidity levels at 83% and substantial rainfall, receiving about 160 mm (6.3 in) over approximately 19 days. In contrast, March presents a cooler climate, with temperatures ranging from a minimum of 7°C (45°F) to an average of 21°C (70°F) and a maximum of 29°C (85°F). It experiences considerably less precipitation, around 22 mm (0.9 in) over just 2 days, and lower humidity levels at 75%. For more detailed weather insights, you can check the link: Manasota Key weather in March.

September and April present contrasting weather profiles. In September, the temperatures are notably warmer, with minimums around 22°C (72°F) and maximums reaching 34°C (94°F), accompanied by high humidity at 83%. The month is characterized by significant rainfall, accumulating to 160 mm (6.3 in) over 19 days. In contrast, April's climate is milder, with minimum temperatures of 11°C (53°F) and maximums averaging 31°C (89°F). Precipitation in April is significantly lower, totaling only 47 mm (1.9 in) over just 7 days, and the humidity is more comfortable at 68%. For a detailed look at weather trends, check out Manasota Key weather in April.

September and May present distinctly different weather patterns. In September, temperatures range from a minimum of 22°C (72°F) to a maximum of 34°C (94°F), with an average of 28°C (82°F). The month experiences significant rainfall, totaling 160 mm (6.3 in) over 19 days, coupled with high humidity levels at 83%. In contrast, May offers slightly cooler conditions, with temperatures spanning from 17°C (62°F) to 33°C (92°F) and an average of 26°C (79°F). Precipitation in May is less intense, totaling 124 mm (4.9 in) over just 11 days, along with a more comfortable humidity level of 65%. For more detailed insights on the weather specific to May, you can visit Manasota Key weather in May.

In comparing the weather of September and June, we can observe a few notable differences. September features a minimum temperature of 22°C (72°F) and an average of 28°C (82°F), with a maximum temperature peaking at 34°C (94°F). It is characterized by higher humidity at 83% and more precipitation, totaling 160 mm (6.3 in) over 19 rainy days. In contrast, June has slightly warmer temperatures, with a minimum of 23°C (73°F), an average of 27°C (82°F), and a maximum of 35°C (94°F). June experiences more rainfall as well, with 177 mm (7.0 in) across 22 days, but the humidity is lower at 73%. For more detailed insights into June weather, check out Manasota Key weather in June.

When comparing the weather in September and July, both months experience similar average temperatures at 28°C (82°F). However, September tends to have slightly cooler minimum and maximum temperatures, with a range of 22°C (72°F) to 34°C (94°F), compared to July's 24°C (75°F) to 33°C (92°F). Precipitation is notably higher in July, with 206 mm (8.1 in) falling over 24 days, while September sees less rain, totaling 160 mm (6.3 in) over 19 days. Additionally, September has higher humidity at 83%, compared to July’s 77%. For more detailed information on July weather, visit Manasota Key weather in July.

In comparing the weather of September to August, September experiences slightly cooler minimum temperatures, averaging 22°C (72°F) compared to August's 24°C (75°F). Both months share the same maximum temperatures of 34°C (94°F), and their average temperatures remain similar, with September at 28°C (82°F) and August at 28°C (83°F). However, September sees a decrease in total precipitation, receiving 160 mm (6.3 in) over 19 days, while August has heavier rainfall at 205 mm (8.1 in) across 26 days. Notably, humidity levels remain similar, with September at 83% and August at 80%. For more details, you can check Manasota Key weather in August.

September and October present a notable shift in weather conditions. September features warmer temperatures, with a minimum of 22°C (72°F) and an average of 28°C (82°F), peaking at 34°C (94°F). In contrast, October cools down significantly, starting with a minimum of 12°C (54°F) and an average temperature of 26°C (80°F), while reaching a maximum of 33°C (92°F). Additionally, September is much wetter, recording 160 mm (6.3 in) of precipitation over 19 days, compared to October's 72 mm (2.9 in) across just 11 days. Both months share a consistent humidity of 83%. For more details on October weather, see Manasota Key weather in October.

In September, temperatures are significantly higher, with a minimum of 22°C (72°F) and an average of 28°C (82°F), reaching up to 34°C (94°F) on the hottest days. This month also sees considerable rainfall, with 160 mm (6.3 in) spread across 19 days, creating a humid environment with a steady humidity level of 83%. In contrast, November brings a noticeable drop in temperatures, starting with a minimum of 10°C (50°F) and averaging 22°C (72°F), peaking at a still warm 31°C (88°F). Precipitation decreases dramatically to just 41 mm (1.6 in) over 5 days, while humidity remains consistent at 83%. For more detailed weather information, you can check out Manasota Key weather in November.

September weather is characterized by significantly warmer temperatures, with minimums around 22°C (72°F) and maximums reaching up to 34°C (94°F). The month experiences considerable rainfall, averaging 160 mm (6.3 in) over 19 days, and high humidity at 83%. In contrast, December sees a notable drop in temperatures, with minimums of 6°C (44°F) and maximums peaking at 28°C (82°F). Precipitation is lighter, averaging only 57 mm (2.3 in) over just 6 days, and humidity remains relatively high at 84%. For more detailed weather information, check out Manasota Key weather in December.

Compare Manasota Key's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Manasota Key

As September unfolds in Manasota Key, the weather offers a unique blend that sets it apart from the rest of the year. With warm temperatures averaging around 28°C (82°F), it remains ideal for beach lovers and outdoor enthusiasts. However, unlike the drier months, you'll notice a significant increase in humidity and precipitation, with nearly 19 days of rain, contributing to a lush, vibrant environment. So, while the skies may occasionally open up, the warmth and beauty of September still provide plenty of opportunities to enjoy the stunning coastal scenery. For a deeper understanding of how these patterns shift throughout the year, explore the comprehensive data in Manasota Key Climate.