September Weather in Tampa, United States

Last updated: February 24, 2025

September in Tampa, United States, is characterized by warm temperatures and high humidity, making it a quintessential late summer month. With maximum highs reaching 35°C (94°F) and an average temperature of 28°C (82°F), outdoor activities can be enjoyed, albeit with caution due to the 78% humidity. Rainfall is common, with 161 mm (6.3 in) of precipitation spread over 19 days, often manifesting in afternoon thunderstorms. Visitors and residents alike should be prepared for a mix of sun and showers, typical of this tropical climate.

September Temperature in Tampa

In September, Tampa experiences a warm and inviting climate, with minimum temperatures around 20°C (69°F) and average highs reaching 35°C (94°F). This month marks a slight decline in the oppressive summer heat, as temperatures stabilize around 28°C (82°F) on average. While the early part of the month may still carry the lingering warmth of summer, the gradual transition hints at the cooler months ahead. Despite the lingering heat, September's conditions provide a perfect backdrop for enjoying outdoor activities and soaking up the sun before fall arrives. Overall, as temperatures shift gently from the peak summer heat, they offer a balance that appeals to both locals and visitors alike.

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

The chart illustrates September temperature patterns in Tampa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec616768737881828282786964
Data source: Temperature data for Tampa 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 Tampa

September in Tampa marks a notable transition in the month’s weather pattern, characterized by 161 mm (6.3 in) of rainfall over 19 days. This decline from the peak summer months, June and July, where precipitation reached record highs of 206 mm (8.1 in) and 265 mm (10.4 in) respectively, suggests the start of a gradual easing in torrential summer storms. Despite the decrease, September still maintains significant moisture, reflecting the region’s tropical climate. As summer gives way to autumn, the frequency of rainy days tapers off slightly compared to the preceding months, yet the lingering clouds and occasional downpours offer a picturesque backdrop to the easing heat, indicating that Tampa's rainy season is still very much in play.

September Precipitation Trends in Tampa

The chart displays monthly precipitation patterns in Tampa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec40622062117206265235161734562
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tampa

In September, Tampa experiences a slight uptick in humidity, averaging 78%, after the generally drier summer months of June through August, when levels hovered around 74%. This increase signals the gradual transition into the more humid fall season. Throughout the year, humidity is notably highest in the winter and late autumn months, with levels peaking at 84% in December. However, September's humidity is still significantly lower than the peak months, indicating a comfortable yet slightly stickier atmosphere as summer fades, preparing residents and visitors alike for the approaching autumn.

September Average Humidity in Tampa

This chart illustrates the average monthly humidity levels in Tampa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec82%82%79%78%76%75%74%75%78%80%82%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tampa

As summer winds down, September in Tampa continues to showcase its intense sun, maintaining an UV Index of 11, which falls into the extreme exposure category. This trend reflects the peak summer months, where similar high values of 11 in August and 12 in June and July were recorded. With a burn time of just 10 minutes, it's essential for residents and visitors alike to prioritize sun safety, even as the calendar shifts towards fall. Be mindful of your sun exposure, as consistent high UV levels persist through this month. For more detailed insights, check out the Tampa UV Index.

Maximum UV Index Levels in Tampa for September

The chart shows the monthly maximum UV Index (UVI) for Tampa 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.
JanFebMarAprMayJunJulAugSepOctNovDec6810111112121111975
Data source: Tampa 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 Tampa

September in Tampa is a delightful time as the city basks in an impressive 312 hours of sunshine, ensuring a vibrant transition into fall. This month continues a trend of sunny days that started in May, where sunshine hours peaked at 333. With favorable weather patterns, the sunshine in September reflects a slight decrease from August, which had 318 hours, yet remains significantly higher than the winter months. As the year progresses, Tampa showcases a tapestry of light, offering a golden opportunity for outdoor adventures and social gatherings, while hinting at the cooler days ahead as October brings 301 hours. Whether it's the warm beaches or vibrant city life, September's sunshine sets the perfect stage for cherished memories in the heart of Florida.

Monthly Sunshine Duration in Tampa: September Highlighted

The September sunshine duration represents the total number of hours Tampa 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.
JanFebMarAprMayJunJulAugSepOctNovDec219h263h318h319h333h303h322h318h312h301h278h270h
Data source: Tampa September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tampa During September

As the summer heat begins to wane, September in Tampa brings a 31% chance of sunny weather, offering a slight increase in sunlight compared to the sweltering months of June (17%), July (21%), and August (16%). This trend highlights a gradual transition into a more balanced climate, with chances of sunshine significantly improving in October to 49%. Historically, as the year progresses from the damp summer months into autumn, Tampa experiences a steady rise in sunshine probabilities, suggesting that while September may still see some cloudy days, it's a promising lead into the more favorable weather conditions of the fall.

Percentage of Sunny Days in September in Tampa

The chart illustrates the percentage of sunny days in Tampa 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 Tampa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec39%50%52%58%56%17%22%16%31%49%54%55%
Data source: Tampa September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tampa in September

As September arrives in Tampa, the sunshine begins to wane slightly, bringing about an average of 12 hours of daylight. This marks a gentle transition from the lengthy summer days, which often extend to 13 hours in the peak months of May through August. Following the vibrant, sun-soaked summer, September's daylight hours reflect the gradual shift towards autumn. Notably, this decrease continues into October, where the day shrinks to 11 hours, signaling shorter days ahead. The rhythm of daylight in Tampa highlights a clear seasonal trend, where the sun generously gifts long hours during summer, only to pull back as the year progresses towards winter.

Average Daylight Hours in Tampa for September

The chart illustrates the variation in daylight duration in Tampa throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 34m11h 12m12h12h 50m13h 32m13h 52m13h 41m13h 4m12h 16m11h 27m10h 44m10h 22m
Data source: Tampa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Tampa

September in Tampa sees a gentle shift in the breeze, with the average wind speed dropping to 2.3 m/s (5 mph)—the lowest of the year. This change marks a noticeable decline from the slightly brisker winds earlier in the spring and summer months, where gusts typically hovered around 2.6 to 3.6 m/s (6 to 8 mph). As the summer heat begins to wane, the calmer winds of September provide a soothing backdrop for evening strolls and outdoor gatherings. This trend of decreased wind speed will begin to reverse in October, suggesting that while September might feel still and tranquil, a return to livelier breezes is just around the corner.

Average September Wind Speed in Tampa

The chart displays monthly wind speed patterns in Tampa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.33.83.53.43.62.82.62.72.3 m/s2.93.22.7
Data source: Tampa September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Tampa Compares to Other Months

The weather in Tampa 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 Tampa and find detailed weather information for every month.

September and January exhibit stark contrasts in weather. September showcases a warm climate with temperatures ranging from a minimum of 20°C (69°F) to a sweltering maximum of 35°C (94°F), alongside significant rainfall of 161 mm (6.3 in) over 19 days, resulting in a humid atmosphere with an average humidity of 78%. In contrast, January experiences much cooler temperatures, with a minimum dipping to -3°C (28°F) and an average of 16°C (61°F), peaking at 29°C (84°F). Precipitation is significantly lower in January, totaling only 40 mm (1.6 in) over just 4 days, while humidity remains relatively high at 82%. For more details on January weather, visit Tampa weather in January.

When comparing the weather in September and February, it’s clear that September is significantly warmer and wetter. In September, temperatures range from a minimum of 20°C (69°F) to a maximum of 35°C (94°F), with an average temperature of 28°C (82°F). This month experiences considerable rainfall, totaling 161 mm (6.3 in) over 19 days, and humidity levels are quite high at 78%.

In contrast, February boasts milder temperatures, with a minimum of 3°C (37°F), an average of 19°C (67°F), and a maximum of 31°C (87°F). Rainfall is much lower in February, with only 62 mm (2.4 in) occurring over just 5 days, and the humidity is slightly higher at 82%. For a more detailed look, you can check out Tampa weather in February.

September and March present contrasting weather patterns. In September, temperatures are notably warmer, with a minimum of 20°C (69°F) and an average high of 35°C (94°F), accompanied by significant rainfall of 161 mm (6.3 in) over 19 days. The humidity remains high at 78%, creating a muggy atmosphere. In contrast, March offers a more moderate climate, featuring a minimum temperature of 4°C (39°F) and a milder average high of 32°C (89°F). Precipitation decreases dramatically to just 20 mm (0.8 in) over 3 days, while humidity maintains a similar level at 79%. For a detailed overview, you can check Tampa weather in March.

September and April present contrasting weather patterns. In September, temperatures range significantly from a minimum of 20°C (69°F) to a maximum of 35°C (94°F), with an average of 28°C (82°F). This month also experiences substantial rainfall, with 161 mm (6.3 in) over 19 days, contributing to the lingering humidity of 78%. In sharp contrast, April offers milder conditions, with temperatures ranging from a cooler 8°C (47°F) at night to a pleasant maximum of 34°C (93°F) during the day, and an average of 23°C (74°F). The month sees much less precipitation at 62 mm (2.5 in) over only 8 days, yet maintains the same humidity level of 78%. For more specifics about April weather, you can find additional details in this link: Tampa weather in April.

September weather tends to be warmer than May, with average temperatures reaching 28°C (82°F) compared to May's 26°C (78°F). Both months can experience highs of up to 35°C (94°F in September and 96°F in May), but September sees more rainfall, totaling 161 mm (6.3 in) over 19 days, while May has 117 mm (4.6 in) over only 11 days. Humidity levels are relatively similar, with September at 78% and May at 76%. For more specific details about weather conditions in May, you can check Tampa weather in May.

When comparing the weather in September and June, we see some notable differences. September has a minimum temperature of 20°C (69°F) and averages around 28°C (82°F), with a maximum reaching 35°C (94°F) and a relatively high humidity of 78%. In contrast, June starts slightly warmer, with a minimum of 21°C (71°F), an average of 27°C (81°F), and a peak temperature of 36°C (96°F). However, June experiences more precipitation, totaling 206 mm (8.1 in) over 23 days compared to September's 161 mm (6.3 in) over 19 days. For a detailed look at the weather in June, you can explore Tampa weather in June.

In comparing the weather between September and July, we see some distinct differences. September generally experiences a slightly lower minimum temperature of 20°C (69°F) compared to July's 23°C (74°F), while both months share an average temperature of 28°C (82°F). July tends to have a maximum temperature of 34°C (93°F), just 1°C lower than September's peak of 35°C (94°F). Precipitation is significantly higher in July, with 265 mm (10.4 in) falling over 27 days, while September sees 161 mm (6.3 in) over 19 days. Additionally, September has a higher humidity level at 78%, compared to 74% in July. For a more detailed look at July weather, check out Tampa weather in July.

In comparing the weather between September and August, it is evident that September temperatures are slightly cooler, with a minimum of 20°C (69°F) compared to August's minimum of 23°C (74°F). Both months share the same average temperature of 28°C (82°F), but August experiences higher maximum temperatures peaking at 35°C (96°F) compared to September's 35°C (94°F). Precipitation is notably higher in August, with 235 mm (9.3 in) over 28 days of rain, as opposed to September’s 161 mm (6.3 in) over just 19 days. Despite higher precipitation in August, the humidity is slightly lower at 74%, versus September's 78%. For more detailed information, you can check the Tampa weather in August.

In September, the weather is characterized by warmer temperatures, with minimums around 20°C (69°F) and an average high of 35°C (94°F). The month sees substantial rainfall, totaling 161 mm (6.3 in) over 19 days, and humidity levels hover around 78%.

In contrast, October experiences a noticeable drop in minimum temperatures, reaching as low as 9°C (48°F), while still maintaining a pleasant average high of 34°C (93°F). Rainfall is significantly less, with only 73 mm (2.9 in) over 11 days, and humidity remains fairly consistent at 79%.

For more detailed information, you can check this link: Tampa weather in October.

September and November showcase a marked transition in weather patterns. In September, temperatures are significantly warmer, with minimums of 20°C (69°F) and maximums reaching up to 35°C (94°F). The month experiences considerable humidity at 78% and features frequent rainfall, with precipitation occurring on 19 days and totaling 161 mm (6.3 in). In contrast, November brings cooler temperatures, with a minimum of 6°C (43°F) and an average of 20°C (69°F), peaking at 30°C (87°F). Rainfall is markedly lower in November, with just 45 mm (1.8 in) of precipitation over 6 days, and humidity slightly rising to 82%. For more details about the November weather, you can check Tampa weather in November.

September and December present stark contrasts in weather patterns. In September, temperatures range from a minimum of 20°C (69°F) to a high of 35°C (94°F), with an average of 28°C (82°F). The month is characterized by high humidity at 78% and significant precipitation, totaling 161 mm (6.3 in) over 19 rainy days. On the other hand, December offers a cooler climate, with temperatures ranging from a chilly 3°C (37°F) to a warm 29°C (84°F), averaging 18°C (65°F). Rainfall is much lighter in December, with only 62 mm (2.4 in) and precipitation occurring on just 6 days, accompanied by slightly higher humidity at 84%. For more details, check out Tampa weather in December.

Compare Tampa's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Tampa

As summer transitions into fall, September in Tampa brings a unique blend of heat and humidity that sets it apart from other months. With average temperatures hovering around a steamy 28°C (82°F), locals and visitors alike feel the warmth, especially during those peak afternoon hours. However, September is also notable for its significant precipitation, with nearly half the month experiencing rain, making it one of the wetter times of the year. This blend of heat and moisture contributes to the city's characteristic tropical vibe, while also reminding everyone to keep an umbrella handy. For a deeper dive into the weather patterns throughout the year, check out Tampa Climate.