Last updated: February 24, 2025
September in Palm Beach, United States, is characterized by warm temperatures with a maximum reaching 33°C (91°F) and an average of 28°C (83°F), creating a muggy atmosphere ideal for beachgoers. The month experiences a minimum temperature of around 25°C (76°F), ensuring pleasant evenings. However, be prepared for frequent rain; with 189 mm (7.4 in) of precipitation over 24 days, the humidity levels hover around an impressive 83%. Despite the wet conditions, the vibrant palm-lined streets and coastal beauty continue to attract visitors looking to embrace the tropical allure.
In September, Palm Beach transitions into a late summer vibe, with temperatures remaining comfortably warm. The month sees a minimum of 25°C (76°F) and peaks at a toasty 33°C (91°F), showcasing an average of 28°C (83°F). This slight increase in warmth compared to August underscores a trend of lingering heat, as the summer gradually gives way to milder autumn temperatures. While evenings are still pleasantly warm, the onset of September hints at upcoming cooler months, making it an ideal time to enjoy the beach before the seasonal shift. The consistent warmth also indicates that locals and visitors can relish outdoor activities in a sunny, tropical setting.
In September, Palm Beach experiences a significant amount of rainfall, with 189 mm (or 7.4 inches) recorded over 24 days. This marks a slight decrease compared to the preceding months, with August having the highest precipitation at 202 mm. The trend indicates that the region is at the tail end of its wet season, where daily showers become more frequent yet slightly less intense. From May through September, the total precipitation showcases a peak in mid-summer, emphasizing the area's tropical climate. As Palm Beach transitions into October, the overall precipitation starts to decline, hinting at the seasonal shift that follows this month of abundant rain.
In September, Palm Beach experiences a notable humidity level of 83%, consistent with the high humidity characteristic of the late summer and early fall months. This figure ties with the humidity levels recorded in January, October, November, and December, creating a distinct pattern of elevated moisture in the atmosphere as the year transitions toward winter. Interestingly, humidity levels peak in September and remain steady into the cooler months, suggesting that while the summer heat wanes, the air retains significant moisture. This trend highlights Palm Beach's subtropical climate, where humidity is a constant companion, evoking both the lushness of its natural surroundings and the warmth that draws visitors year-round.
In September, Palm Beach experiences a UV Index of 11, placing it in the extreme exposure category with a burn time as brief as 10 minutes. This indicates a slight decrease from the peak index of 12 seen throughout the summer months, yet it remains a warning for sun seekers to stay vigilant. As the year progresses, the UV Index generally trends downward from its summer zenith, moving towards more moderate levels by late fall. However, September still demands precautions as the sun's intensity continues to present significant risks. For more detailed information, visit Palm Beach UV Index.
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As the summer sun begins to wane, September in Palm Beach continues to bask in a generous 317 hours of sunshine. This month marks a subtle transition from the peak summer brightness, with hours slightly dipping from August's impressive 334 hours, yet remaining robust and inviting. The trend reveals a pattern of steadily increasing sunlight from the start of the year, peaking in the middle of summer, and then gently tapering off as autumn approaches. While September showcases fewer rays than the summer months, it still outshines the earlier part of the year, making it an ideal time for outdoor adventures under the warm Florida sun.
September in Palm Beach presents a moderate likelihood of sunny weather, with a 33% chance of sun. This places it near the lower end of the spectrum when compared to other months, particularly the sunnier winter months like December, which boasts a 64% chance. Notably, the peak summer months, June through August, see a stark decline in sunshine probabilities, with chances plummeting to around 17% to 23%. By September, the weather begins to shift towards more moderate conditions, but the lingering summer humidity can still lead to some overcast days. Overall, while September may not be the sunniest month, viewers can still find some bright days amid the transitioning season.
As September rolls into Palm Beach, the sun continues to grace the days with 12 hours of daylight, reflecting a gradual transition from the long summer days. The month marks the beginning of a slight decline in daylight hours after the peak of 13 hours in the summer months of May through August. This trend of diminishing daylight suggests a shift towards shorter days, as October approaches with just 11 hours on the horizon. Visitors and residents can relish the last warm days of summer while enjoying a vibrant sunset, making September a perfect time to soak in the lingering sunshine before the shorter autumn days set in.
As summer fades and September arrives in Palm Beach, the average wind speed takes a noticeable dip to 2.6 m/s (6 mph), marking it as the calmest month of the year. This gentle breeze contrasts sharply with the more robust winds of earlier months, such as February and May, where speeds hover around 5.0 m/s (11 mph). Following the peak summer months, with their sweltering heat and moderate winds, this softening in wind patterns signals a transition to the cooler, invigorating breezes of autumn. As October approaches, conditions gradually pick up again, hinting at the return of more refreshing winds, with speeds increasing to 3.7 m/s (8 mph). Overall, September serves as a serene interlude, where the soothing winds invite locals and visitors alike to enjoy the tranquil beauty of Palm Beach.
The weather in Palm 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 Palm Beach and find detailed weather information for every month.
September and January exhibit stark differences in weather patterns. September boasts higher temperatures, with a minimum of 25°C (76°F) and averages reaching 28°C (83°F), peaking at a warm 33°C (91°F). In contrast, January features significantly cooler temperatures, starting at a minimum of 7°C (45°F), averaging 21°C (69°F), and a maximum of 28°C (83°F). Additionally, September records substantial rainfall, totaling 189 mm (7.4 in) over 24 days, whereas January is much drier, with only 43 mm (1.7 in) of precipitation falling across just 7 days. Despite both months having similar humidity levels at 83%, the overall experience in September is one of warmth and wetness, while January brings cooler temperatures and a more temperate climate. For more details on January weather specifically, check out Palm Beach weather in January.
September weather is characterized by significantly higher temperatures, with a minimum of 25°C (76°F) and an average of 28°C (83°F), reaching up to 33°C (91°F) on warmer days. In addition to the heat, this month experiences considerable rainfall, with 189 mm (7.4 in) spread over 24 days, contributing to a high humidity level of 83%.
In contrast, February offers a much cooler climate, with temperatures dipping to a minimum of 11°C (51°F) and averaging around 22°C (72°F), peaking at 28°C (82°F). The month sees considerably less precipitation at 54 mm (2.1 in) over just 9 days, along with a lower humidity level of 80%. This makes February a more comfortable month overall. For more detailed information, you can check Palm Beach weather in February.
September and March present strikingly different weather conditions. In September, temperatures range from a minimum of 25°C (76°F) to a maximum of 33°C (91°F), with a warm average of 28°C (83°F). The month is also notably wet, experiencing 189 mm (7.4 in) of rainfall over 24 days and high humidity levels at 83%. In contrast, March features a cooler climate, with temperatures dipping to a minimum of 13°C (56°F) and reaching a maximum of 30°C (85°F), averaging around 22°C (72°F). Rainfall is significantly less in March, with only 36 mm (1.4 in) over just 7 days, and humidity is slightly lower at 75%. For more details on March's climate, you can check Palm Beach weather in March.
In comparing the weather between September and April, we see a notable shift in temperatures and precipitation patterns. September boasts warmer temperatures, with a minimum of 25°C (76°F) and an average of 28°C (83°F), peaking at 33°C (91°F). In contrast, April typically experiences cooler conditions, starting at a minimum of 16°C (62°F) and averaging 24°C (76°F), reaching a maximum of 32°C (90°F). Precipitation levels in September are significant, with 189 mm (7.4 in) spread over 24 days, leading to a higher humidity level of 83%. Conversely, April sees much less rainfall at 86 mm (3.4 in) over just 10 days, resulting in a lower humidity of 68%. For a more detailed look at April weather, visit Palm Beach weather in April.
In comparing the weather between September and May, September typically experiences warmer temperatures with a minimum of 25°C (76°F) and an average of 28°C (83°F), while May has a lower minimum of 19°C (67°F) and a slightly lower average of 26°C (78°F). The maximum temperatures in both months are relatively close, with September peaking at 33°C (91°F) compared to May's 31°C (88°F). However, September is notably wetter, receiving 189 mm (7.4 in) of precipitation over 24 days, while May sees less rainfall at 158 mm (6.2 in) across 17 days. Additionally, September's humidity is significantly higher at 83%, compared to May's 65%, contributing to a feeling of increased mugginess during the former. For a more in-depth look at May's climate, check out Palm Beach weather in May.
September generally experiences slightly higher temperatures than June, with average highs reaching up to 33°C (91°F) compared to June's 32°C (90°F). While both months are characterized by significant rainfall, September tends to have a bit less precipitation, totaling 189 mm (7.4 in) over 24 days, as opposed to June's 215 mm (8.5 in) over 23 days. Notably, September's humidity is also higher at 83%, compared to June's 73%, giving September a more muggy feel. For those interested in a detailed look at June weather, you can check out Palm Beach weather in June.
When comparing the weather of September and July, both months exhibit similar temperature ranges, with minimums around 25°C (77°F), average temperatures at 28°C (83°F), and maximums peaking at 33°C (91°F). However, September tends to have slightly higher precipitation levels, receiving 189 mm (7.4 in) across 24 days, compared to July's 192 mm (7.6 in) over 29 days. Additionally, September experiences higher humidity at 83%, while July is slightly less humid at 77%. For more detailed insights into July's weather patterns, you can visit Palm Beach weather in July.
In comparing the weather of September and August, both months display similar temperature ranges, with September experiencing a minimum of 25°C (76°F), an average of 28°C (83°F), and a maximum of 33°C (91°F), while August features a slightly higher maximum of 32°C (90°F) and the same minimum and average temperatures. September also sees a decrease in overall precipitation, totaling 189 mm (7.4 in) over 24 days compared to August's 202 mm (8.0 in) across 27 days. Remarkably, September has a higher humidity level at 83%, compared to August's 80%. For more details, you can check Palm Beach weather in August.
September and October present a noticeable transition in weather patterns. In September, temperatures range from a minimum of 25°C (76°F) to a maximum of 33°C (91°F), with an average of 28°C (83°F). Precipitation is relatively high, with 189 mm (7.4 in) recorded over 24 days and humidity remaining consistently high at 83%. In contrast, October sees a drop in the minimum temperature to 16°C (60°F) and an average temperature of 27°C (81°F), with a maximum of 31°C (88°F). Additionally, October experiences slightly lower precipitation at 159 mm (6.3 in) over 22 days, while humidity remains unchanged at 83%. For more detailed information, you can check out Palm Beach weather in October.
In comparing the weather between September and November, September boasts significantly warmer temperatures, with a minimum of 25°C (76°F) and an average of 28°C (83°F), reaching a maximum of 33°C (91°F). In contrast, November sees cooler temperatures, with minimums dropping to 12°C (53°F) and averages around 24°C (76°F), peaking at 29°C (85°F). Additionally, September experiences higher rainfall, totaling 189 mm (7.4 in) over 24 days, while November's precipitation decreases to 93 mm (3.6 in) over just 15 days. Both months maintain a consistent humidity level of 83%. For more detailed information, you can check Palm Beach weather in November.
September and December exhibit stark contrasts in weather. September is characterized by warmer temperatures, with daily averages around 28°C (83°F) and maximums reaching 33°C (91°F), while December offers a cooler experience with temperatures averaging 22°C (72°F) and highs around 28°C (83°F). Additionally, September sees significantly more precipitation, with 189 mm (7.4 in) over 24 days, compared to December's milder 48 mm (1.9 in) over just 10 days. Humidity levels remain fairly consistent, hovering around 83% in September and slightly higher at 84% in December. For more insights on December's climate, you can visit Palm Beach weather in December.
As summer transitions to fall, September in Palm Beach brings a unique blend of warmth and moisture, distinguishing it from the drier months that follow. While temperatures remain pleasantly warm, with highs often reaching up to 33°C, the increased humidity and frequent rainfall—averaging around 24 rainy days—create a distinctive tropical ambiance. This time of year, with its lush landscapes and vibrant skies, offers a different charm, enticing visitors to embrace the elements. For those planning to enjoy this tropical locale, understanding the nuances of September weather can enrich the experience. For a comprehensive overview of what to expect each month, check out the detailed insights on Palm Beach Climate.