September Weather in New Smyrna Beach, United States

Last updated: February 24, 2025

September in New Smyrna Beach, Florida is characterized by warm, tropical weather, with maximum temperatures reaching 35°C (95°F) and an average of 27°C (81°F). Visitors can expect a humid atmosphere with an average humidity of 83%, which contributes to the region's lush, vibrant scenery. This month sees a total precipitation of 170 mm (6.7 in) spread over 21 days, providing regular, albeit brief, rain showers that nourish local flora. Whether you're soaking up the sun or enjoying a refreshing rain, September offers a unique blend of warmth and moisture, perfect for beachgoers and nature enthusiasts alike.

September Temperature in New Smyrna Beach

September in New Smyrna Beach marks a transitional period as summer begins to wane, yet temperatures remain pleasantly warm. With minimums averaging around 20°C (68°F) and highs reaching up to 35°C (95°F), the month offers a delightful blend of warmth without the extreme highs of mid-summer. The average temperature settles at a comfortable 27°C (81°F), making it an ideal time for beachgoers and outdoor enthusiasts to enjoy the sun. As humidity decreases slightly and ocean breezes become more refreshing, September encapsulates that perfect late-summer vibe in this charming coastal town, inviting relaxation and recreation amidst a backdrop of beautiful sunsets.

September Weather in New Smyrna Beach: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in New Smyrna Beach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec616668727780828281786964
Data source: Temperature data for New Smyrna Beach 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 New Smyrna Beach

In September, New Smyrna Beach experiences a significant transition in its weather patterns, marked by 170 mm (6.7 in) of rainfall over approximately 21 days. This deluge signals a peak in the annual precipitation cycle, following closely behind the summer months of June, July, and August, which collectively contribute to the region's lush greenery. With the continued rainfall, September often brings a mix of vibrant, stormy afternoons and serene morning sunshine, creating a dynamic landscape. This month sits as a notable peak in the rainy season, highlighting the region's tropical climate and preparing the way for a gradual decline in precipitation as the year progresses into autumn.

September Precipitation Trends in New Smyrna Beach

The chart displays monthly precipitation patterns in New Smyrna Beach, 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.
JanFebMarAprMayJunJulAugSepOctNovDec40562472112203219210170915679
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in New Smyrna Beach

As summer fades into autumn, September in New Smyrna Beach brings back the sultry embrace of humidity with levels peaking at 83%. This month mirrors the dampness typically felt in January, suggesting a lingering warmth in the air as the region transitions. Following August's high of 81%, September sees a modest rise, reinforcing a trend of higher humidity during late summer and early fall. Interestingly, after reaching its lowest point in May at 68%, the humidity slowly climbed back up through the summer months, underscoring the coastal climate's characteristic stickiness which comforts beachgoers in the early days of fall. As we move into October, humidity remains high at 81%, ensuring that the beach vibes persist just a bit longer before the cooler months set in.

September Average Humidity in New Smyrna Beach

This chart illustrates the average monthly humidity levels in New Smyrna Beach, 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%70%68%75%80%81%83%81%82%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in New Smyrna Beach

In September, New Smyrna Beach experiences an extreme UV Index of 11, confirming its position as a sun-soaked haven even as summer winds down. With a burn time of just 10 minutes, residents and visitors should be especially cautious as the sun's rays remain potent, providing a stark reminder of the beach's year-round appeal. Following the trends from the summer months, September maintains an elevated UV level similar to August, emphasizing the importance of sun protection. As October approaches, the UV Index is expected to decline slightly to 9, transitioning to the very high category, yet September remains a peak period for sun exposure. For more detailed information and tips on staying safe under the sun, check out New Smyrna Beach UV Index.

Maximum UV Index Levels in New Smyrna Beach for September

The chart shows the monthly maximum UV Index (UVI) for New Smyrna Beach 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.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121111975
Data source: New Smyrna Beach 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 New Smyrna Beach

As September unfolds in New Smyrna Beach, residents and visitors bask in an impressive 306 hours of sunshine, a continuation of the summer's radiant glow. This month, while slightly cooler than the peak of summer, still boasts significant sunlight hours, contributing to the beach town's allure. Following the sun-drenched months of July and August, which recorded 336 and 327 hours respectively, September transitions smoothly into fall without sacrificing warmth or brightness. As the year winds down, the sunshine gradually tapers off, with October witnessing a modest decline to 294 hours. This harmonious blend of sun and sea makes September a delightful time to explore the vibrant spirit of New Smyrna Beach before the cooler months set in.

Monthly Sunshine Duration in New Smyrna Beach: September Highlighted

The September sunshine duration represents the total number of hours New Smyrna Beach 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.
JanFebMarAprMayJunJulAugSepOctNovDec209h247h310h309h327h308h336h327h306h294h257h257h
Data source: New Smyrna Beach September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in New Smyrna Beach During September

As September rolls around in New Smyrna Beach, the likelihood of sunny weather settles at 31%, reflecting a noticeable dip compared to the earlier months of the year. This trend marks a decline from the more favorable conditions found in May (47%) and April (45%), highlighting the onset of the rainy season. Interestingly, July and August see the lowest chances of sunshine at just 22%, making September an improvement, albeit modest. While the sunshine may not be as abundant as in the months preceding it, this transitional period still offers a respite from the summer's peak humidity, inviting beachgoers to enjoy what sunny spells the month has to offer.

Percentage of Sunny Days in September in New Smyrna Beach

The chart illustrates the percentage of sunny days in New Smyrna Beach 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 New Smyrna Beach experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%45%37%45%47%22%22%15%31%45%45%54%
Data source: New Smyrna Beach September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in New Smyrna Beach in September

As summer transitions into fall, September in New Smyrna Beach offers a balance of light with 12 hours of daylight. This month marks a subtle decline from the peak of 13 hours experienced during the summer, reflecting a gradual shift in the seasons. Following the sun-drenched days of July and August, September's light begins to wane, preparing residents and visitors alike for the cozy autumn months ahead. This rhythmic change in daylight not only enhances the picturesque sunsets but also signifies nature's beautiful cycle, transitioning towards the shorter days of October and November.

Average Daylight Hours in New Smyrna Beach for September

The chart illustrates the variation in daylight duration in New Smyrna Beach throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 30m11h 9m12h12h 52m13h 36m13h 57m13h 45m13h 7m12h 17m11h 25m10h 40m10h 18m
Data source: New Smyrna Beach daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in New Smyrna Beach

As summer winds down in New Smyrna Beach, September brings a noticeable dip in average wind speed, with a gentle breeze of just 2.2 m/s (5 mph). This shift marks a distinct transition from the more robust gusts experienced earlier in the season, with July and August remaining the calmest months at 2.6 m/s (6 mph). The prevailing trend shows that as the calendar turns from summer to fall, the winds tend to soften, creating a serene environment perfect for relaxation. By October, the winds slightly pick up again to 2.7 m/s (6 mph), hinting at a rejuvenation as the beach town gears up for the cooler months ahead. This gradual ebb and flow of wind patterns reflects the rhythmic dance of nature, inviting residents and visitors alike to savor the peaceful September days.

Average September Wind Speed in New Smyrna Beach

The chart displays monthly wind speed patterns in New Smyrna Beach, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.43.53.73.43.63.12.62.62.2 m/s2.73.42.7
Data source: New Smyrna Beach September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in New Smyrna Beach Compares to Other Months

The weather in New Smyrna Beach 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 New Smyrna Beach and find detailed weather information for every month.

September and January present vastly different weather experiences. In September, temperatures hover between a minimum of 20°C (68°F) and a maximum of 35°C (95°F), with an average of 27°C (81°F). This month also sees significant rainfall, accumulating 170 mm (6.7 in) over 21 days, contributing to a high humidity level of 83%. In stark contrast, January features cooler weather, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 30°C (86°F) and an average of 16°C (62°F). Precipitation drops notably to just 39 mm (1.6 in) across 5 days, while humidity remains steady at 83%. For a closer look at January weather specifics, you can visit New Smyrna Beach weather in January.

September and February present contrasting weather experiences. September boasts a warm climate with average temperatures around 27°C (81°F) and highs reaching up to 35°C (95°F), accompanied by significant rainfall of 170 mm (6.7 in) over roughly 21 days, resulting in a humid atmosphere at 83%. In stark contrast, February offers a cooler and more temperate setting, with average temperatures of 19°C (66°F) and a maximum of 30°C (87°F). Precipitation is much lower, totaling 55 mm (2.2 in) over just 8 days, and humidity is slightly reduced at 80%. For a deeper look into February weather specifics, check out New Smyrna Beach weather in February.

When comparing the weather in September and March, distinct differences emerge. September features a warmer climate with minimum temperatures around 20°C (68°F) and average highs reaching up to 35°C (95°F), combined with a significant amount of precipitation at 170 mm (6.7 in) over 21 days and high humidity at 83%. In contrast, March boasts much cooler temperatures, with a minimum of 4°C (40°F) and an average of 20°C (68°F), providing a pleasant respite with far less rainfall—only 24 mm (0.9 in) over just 4 days—and lower humidity at 75%. For more insights on March weather, you can explore New Smyrna Beach weather in March.

In comparing the weather of September and April, notable differences emerge. September boasts warmer temperatures, with a minimum of 20°C (68°F) and an average of 27°C (81°F), reaching highs of 35°C (95°F). In contrast, April offers a cooler climate, featuring a minimum temperature of 8°C (48°F) and an average of 22°C (73°F), with a maximum of 34°C (94°F). Additionally, September tends to be much wetter, experiencing 170 mm (6.7 in) of precipitation over 21 days, compared to April's 72 mm (2.8 in) across just 8 days. Humidity levels are also higher in September at 83%, while April maintains a slightly lower humidity at 70%. For more details on April weather, visit New Smyrna Beach weather in April.

Comparing the weather of September and May reveals notable differences. In September, temperatures are generally warmer, with a minimum of 20°C (68°F) and an average of 27°C (81°F), whereas May sees cooler temperatures, starting from a minimum of 13°C (56°F) and averaging 25°C (77°F). Both months can reach a maximum of 35°C (95°F), but September experiences significantly more precipitation, with 170 mm (6.7 in) over 21 days, compared to May’s 112 mm (4.4 in) over just 11 days. Additionally, September has higher humidity at 83%, while May's humidity is more comfortable at 68%. For a detailed look at May’s weather patterns, check out New Smyrna Beach weather in May.

In June, temperatures start off slightly warmer with a minimum of 21°C (70°F) and can peak at a maximum of 36°C (98°F), while September sees slightly cooler minimums at 20°C (68°F) and maximums reaching 35°C (95°F). Both months share the same average temperature of 27°C (81°F), but June experiences more rainfall, averaging 202 mm (8.0 in) across 23 days, compared to September's 170 mm (6.7 in) over 21 days. Notably, September's humidity is higher at 83%, leading to a more muggy atmosphere than June, which sits at 75%. For a detailed look at June weather, visit New Smyrna Beach weather in June.

When comparing the weather of September to July, we observe some distinct differences. September features slightly cooler temperatures, with a minimum of 20°C (68°F) compared to July's minimum of 22°C (72°F). Although both months reach a maximum of 35°C (95°F in September and 96°F in July), September tends to have higher humidity at 83% versus July's 79%. Precipitation is another notable factor; September experiences less overall rainfall than July, recording 170 mm (6.7 in) over 21 days, while July sees 219 mm (8.6 in) across 27 days. For more detailed insights, you can visit New Smyrna Beach weather in July.

In comparing the weather between September and August, September features slightly cooler temperatures, with a minimum of 20°C (68°F) and an average of 27°C (81°F), compared to August’s minimum of 23°C (74°F) and average of 28°C (82°F). Both months experience the same maximum temperature of 35°C (95°F), but September sees increased precipitation, totaling 170 mm (6.7 in) over 21 days, while August has a higher total of 210 mm (8.3 in) across 27 days. Notably, September has a slightly higher humidity level at 83%, compared to August's 81%. For more detailed information, you can visit New Smyrna Beach weather in August.

September experiences warmer temperatures, with minimums around 20°C (68°F) and maximums reaching 35°C (95°F), while October sees a notable drop in nighttime lows to 8°C (46°F) even though the average remains fairly comfortable at 25°C (78°F). Precipitation also decreases from 170 mm (6.7 in) over 21 days in September to 91 mm (3.6 in) over 17 days in October, indicating a shift toward drier conditions. Humidity remains relatively high in both months, but it slightly decreases from 83% in September to 81% in October. For more specifics about weather in October, you can check the details here: New Smyrna Beach weather in October.

Comparing September and November weather reveals a significant shift in conditions. September experiences warmer temperatures with a minimum of 20°C (68°F) and an average of 27°C (81°F), peaking at a scorching 35°C (95°F). In contrast, November sees much cooler temperatures, starting from a low of 4°C (39°F) and averaging 21°C (69°F), with a maximum of 32°C (89°F). September is also quite humid, with an average humidity of 83% and significant rainfall, totaling 170 mm (6.7 in) over 21 days. Meanwhile, November features notably less precipitation at 56 mm (2.2 in) over just 8 days and slightly lower humidity at 82%. For a closer look at the specific conditions, check out New Smyrna Beach weather in November.

The weather in September is characterized by significantly warmer temperatures, with a minimum of 20°C (68°F) and an average high reaching 35°C (95°F). In contrast, December experiences a notable drop in temperatures, with a minimum of just 2°C (36°F) and an average high of 30°C (87°F). Precipitation also varies greatly between the two months; September sees 170 mm (6.7 in) of rain over 21 days, while December has a much lighter rainfall of 79 mm (3.1 in) over just 8 days. Humidity levels remain relatively consistent, hovering around 83% in September and 84% in December. For more detailed weather insights, visit New Smyrna Beach weather in December.

Compare New Smyrna Beach's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in New Smyrna Beach

As September rolls in, New Smyrna Beach experiences a notable shift in weather, blending the tail end of summer with the onset of fall. With high humidity averaging around 83% and frequent rainfall on 21 days, the atmosphere feels both warm and sticky, a contrast to the drier months that precede it. Daytime temperatures can still reach up to 35°C (95°F), yet the increased precipitation—totaling 170 mm (6.7 in)—adds a refreshing break from the sweltering heat. These conditions make September a unique time to enjoy the vibrant coastal scenery, albeit with a higher chance of rain showers. For a deeper dive into the nuances of the climate, check out New Smyrna Beach Climate.