Last updated: February 24, 2025
Experience the vibrant September weather of Neptune Beach, United States, where the maximum temperature climbs to a sweltering 34°C (93°F), while the average is a pleasantly warm 27°C (80°F). The minimum temperature during this month dips to a refreshing 18°C (65°F). While visitors can bask in the sun, they should also prepare for 17 days of precipitation, totaling around 162 mm (6.4 in), creating a humid atmosphere with levels around 83%. Enjoy the blend of warm sunshine and occasional rain as you explore the beauty of Neptune Beach this September!
In September, Neptune Beach showcases a delightful transition into autumn, with temperatures that reflect the lingering warmth of summer. The minimum temperature hovers around 18°C (65°F), while the average reaches a pleasant 27°C (80°F), and the maximum can climb to 34°C (93°F). This month marks a subtle decline from the peak summer heat experienced in August, yet keeps the beach atmosphere alive, inviting sunbathers and water enthusiasts to relish the balmy weather. As the days gradually shorten, the blend of warmth and ocean breezes creates a perfect setting for outdoor activities, making September a truly captivating time to enjoy Neptune Beach.
September in Neptune Beach marks a continuation of the region's wet season, with precipitation reaching 162 mm (6.4 in), mirroring August's totals. Notably, this month sees 17 days of rain, indicating that while the downpours may be frequent, they can also bring much-needed relief from the summer heat. As the transition to autumn progresses, the precipitation amount notably drops in the following months, suggesting a shift towards drier conditions. With the saturation from both August and September, local ecosystems benefit from this late-summer rainfall, setting the stage for the changing landscapes of fall.
In September, Neptune Beach experiences a humidity level of 83%, a slight uptick from the preceding months of August and July, which both sit at 82%. This late summer humidity keeps the coastal air warm and sultry, preparing for the shift into autumn. Interestingly, September maintains a relative continuity with the higher humidity levels seen in other peak summer months, such as July and August, but it also hints at the gradual decline that follows into October at 79%. Overall, September's humidity emerges as a bridge: transitioning from the sweltering summer heat while still holding onto that lush, tropical feel that characterizes the area throughout the summer season. As the year progresses, one can observe a consistent pattern—humidity tends to peak in the summer months before tapering down into the cooler fall and winter, offering a delightful yet humid experience for beachgoers.
As summer fades into autumn, September in Neptune Beach continues to exhibit a very high UV Index of 10, indicative of the lingering strength of the sun. This month marks a slight decrease from the extreme levels experienced in June through August, but with a burn time of only 15 minutes, vigilance is still crucial for outdoor enthusiasts. Notably, the trend shows that while the UV Index dips after the peak summer months, exposure categories remain high to very high as the season transitions. As October approaches, residents and visitors should remain conscious of sun safety routines to mitigate the risks associated with increased UV radiation. To learn more about how to protect yourself from UV exposure, visit Neptune Beach UV Index.
UV Risk Categories
As summer gently transitions into autumn, September in Neptune Beach shines brightly with an impressive 297 hours of sunlight. This month marks a slight dip from the sun-soaked peak of May, which boasts 332 hours, yet it remains comfortably above the year’s early months. The trend shows a warm embrace from the lingering summer days, while the gradual decrease in sunlight hours hints at the impending change of seasons. Despite this, September still offers abundant opportunities for beach lovers to soak up the sun, making it an inviting month for both relaxation and outdoor activities. With the sun setting a little earlier, evenings become perfect for stargazing under the vast, clear skies.
As September rolls into Neptune Beach, the likelihood of sunny weather takes a noticeable dip, with only a 37% chance of sunshine gracing the skies. This trend follows the peak summer months, where the sunniest days plummet to around just 19% in both June and August. Interestingly, September's sunshine probability is an improvement from the summer slump but still lags behind the brighter days of spring and early fall, such as April's 51% and October's 46%. Overall, the transition into autumn brings with it a mixed bag for sunshine seekers, hinting at the approaching cooler months while still offering glimpses of warmth.
As summer gives way to fall in Neptune Beach, United States, September brings a gentle transition in daylight duration, offering about 12 hours of sunlight each day. Following the peak of 14 hours experienced in June, the gradual decline reflects the changing seasons as daylight starts to wane. This pattern is a precursor to October’s shorter days, which offer 11 hours of sunlight, marking a notable shift towards winter's shorter daylight hours. Overall, September serves as a delightful overlap, maintaining a good balance of daylight and inviting the community to savor the last remnants of warmer weather before autumn truly sets in.
As September graces Neptune Beach, the winds begin to whisper a gentler tune, with an average speed of 2.7 m/s (6 mph)—the lowest of the year. This marks a noticeable decline from the breezy heights of spring and early summer, where wind speeds hovered around 3.5 to 4.0 m/s. With the summer heat gradually fading, these milder winds create a serene atmosphere perfect for beach strolls and sunset gazing. Looking ahead, October offers a slight uptick to 3.0 m/s (7 mph), hinting at the advent of fall while maintaining a comfy coastal ambiance. Overall, September's winds signify a transition towards the quieter months, inviting everyone to savor the peaceful charm of Neptune Beach.
The weather in Neptune 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 Neptune Beach and find detailed weather information for every month.
September and January exhibit strikingly different weather patterns. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 34°C (93°F), with an average of 27°C (80°F). This month is characterized by high humidity at 83% and significant rainfall, totaling 162 mm (6.4 in) over 17 days. In contrast, January offers a much cooler climate, with temperatures dropping to a minimum of -3°C (27°F) and peaking at 27°C (80°F), averaging around 14°C (57°F). The month is drier, receiving only 42 mm (1.6 in) of precipitation across just 5 days, and maintaining a slightly higher humidity at 84%. For a closer look at specific weather conditions, consider checking out Neptune Beach weather in January.
When comparing the weather of September and February, there are notable differences in temperature and precipitation. September typically experiences warmer temperatures, with minimums around 18°C (65°F) and maximums reaching up to 34°C (93°F), which feels quite hot and humid with an average of 27°C (80°F). In contrast, February offers milder conditions, with minimum temperatures dropping to 2°C (35°F) and maximums around 29°C (84°F), averaging at 17°C (62°F). September sees more rainfall as well, with 162 mm (6.4 in) over 17 days, while February has a significantly lower precipitation of 71 mm (2.8 in) spread across 9 days. For more specific insights on February weather, you can check out Neptune Beach weather in February.
September and March present quite contrasting weather patterns. In September, temperatures range from a minimum of 18°C (65°F) to a scorching maximum of 34°C (93°F), with an average of 27°C (80°F). The month is characterized by high humidity at 83% and considerable rainfall, totaling 162 mm (6.4 in) over approximately 17 days. In stark contrast, March offers cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 31°C (89°F), alongside an average temperature of 18°C (65°F). Precipitation is significantly less in March, with only 46 mm (1.8 in) falling across 6 days, and humidity levels are slightly lower at 78%. For more detailed weather information, you can check Neptune Beach weather in March.
When comparing the weather in September and April, notable differences emerge in temperature and precipitation. September typically experiences a warmer climate, with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 34°C (93°F), while April's temperatures are cooler, starting at a minimum of 8°C (46°F) and peaking at 32°C (90°F) on average. September also sees significantly more rain, with 162 mm (6.4 in) spread over 17 days, in contrast to April's milder 71 mm (2.8 in) over just 7 days. Additionally, humidity is higher in September at 83%, compared to 72% in April, making September feel more humid and tropical. For detailed insights on April weather, you can check Neptune Beach weather in April.
In comparing the weather of September and May, we see notable differences in temperature and precipitation patterns. September typically experiences higher average temperatures, ranging from a minimum of 18°C (65°F) to a maximum of 34°C (93°F), while May has cooler averages, with a minimum of 12°C (55°F) and an average high of 34°C (94°F). Additionally, September is characterized by greater humidity at 83% and significantly more rainfall, averaging 162 mm (6.4 in) over 17 days, compared to May's 80 mm (3.1 in) of rain over just 9 days. For a more detailed look at May weather in Neptune Beach, you can visit Neptune Beach weather in May.
In comparing the weather of September and June, we find notable similarities and differences. Both months experience a minimum temperature of 18°C (65°F), with maximum temperatures peaking at around 34°C (93°F in September and 94°F in June). However, September tends to be slightly warmer on average, with temperatures reaching 27°C (80°F) compared to June’s average of 26°C (80°F).
In terms of precipitation, September is wetter, with 162 mm (6.4 in) falling over 17 days, whereas June sees 151 mm (5.9 in) over 20 days, indicating more frequent rain in June, though slightly less total rainfall. Humidity levels also differ, with September exhibiting a higher humidity of 83% compared to June’s 74%. For more detailed information about June weather, you can visit Neptune Beach weather in June.
When comparing the weather in September and July, both months showcase quite similar average temperatures, with September displaying a minimum of 18°C (65°F) and an average of 27°C (80°F), while July has a higher minimum of 23°C (73°F) but the same average. However, July typically experiences more precipitation, with 186 mm (7.3 in) falling over 23 days, compared to September's 162 mm (6.4 in) over 17 days. Humidity levels are also slightly different, with July at 82% and September at 83%. Overall, while both months are warm, July tends to be a bit wetter with slightly higher minimum temperatures. For more detailed insights about July weather, please visit Neptune Beach weather in July.
In comparison to August, September in Neptune Beach offers slightly cooler temperatures, with a minimum of 18°C (65°F) compared to August's 23°C (74°F). Both months have similar average temperatures of around 27°C (80°F), but September's maximum reaches a high of 34°C (93°F), slightly lower than August's peak of 35°C (96°F). Precipitation levels remain consistent at 162 mm (6.4 in) for both months; however, September experiences rain over 17 days, while August sees it on 24 days, suggesting a shift towards drier conditions. Humidity levels are comparable, with September at 83% and August trailing closely at 82%. For more detailed insights, you can check out Neptune Beach weather in August.
In September, the weather is notably warmer, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 34°C (93°F), averaging around 27°C (80°F). This month also sees significant rainfall, with 162 mm (6.4 in) over 17 days and a high humidity level of 83%. In contrast, October brings a cooler climate, with temperatures dropping to a minimum of 8°C (47°F) and averaging 24°C (76°F), peaking at 32°C (90°F). Precipitation decreases to 92 mm (3.6 in) across 14 days, along with a slight reduction in humidity to 79%. For those interested in specific weather details, you can check out Neptune Beach weather in October.
September and November showcase a notable shift in weather conditions. September boasts warmer temperatures, with minimums around 18°C (65°F) and maximums peaking at 34°C (93°F), creating an average temperature of 27°C (80°F). Additionally, the month sees higher precipitation levels, accumulating 162 mm (6.4 in) over 17 days and maintaining a high humidity of 83%. In contrast, November experiences cooler temperatures, with a minimum of 3°C (37°F) and an average of 18°C (65°F), while maximums reach 31°C (89°F). Precipitation drops to 81 mm (3.2 in) over just 8 days, and humidity holds steady at 82%. For more details on November weather specifics, visit Neptune Beach weather in November.
In September, the weather is typically warm with minimum temperatures averaging around 18°C (65°F) and reaching a maximum of 34°C (93°F), accompanied by high humidity at 83%. The month also sees significant rainfall, with around 162 mm (6.4 in) of precipitation over 17 days. In contrast, December offers a much cooler climate, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 27°C (80°F), and a more moderate average of 15°C (60°F). This month experiences far less rainfall, totaling only 75 mm (2.9 in) over 8 days, while humidity remains relatively high at 85%. For more specifics on December weather patterns, you can read more about Neptune Beach weather in December.
As summer transitions into fall, September in Neptune Beach brings a unique blend of warmth and humidity. Temperatures peak at pleasantly warm levels, contrasting with the cooler mornings and evenings that hint at the approaching season. Precipitation becomes more frequent, with a notable increase in rainy days, which can make beach outings a bit unpredictable. This month stands out for its high humidity, creating a tropical atmosphere that sets it apart from the drier months that follow. Embrace the vibrant, lush surroundings and the beauty of the changing weather; for more insights, check out Neptune Beach Climate.