Last updated: August 31, 2025
September in Praslin, Saint Lucia, offers a tropical escape characterized by warm temperatures. With maximum highs reaching 32°C (90°F) and an average of 28°C (83°F), visitors can expect comfortably warm days. However, evenings cool down to a minimum of 25°C (76°F), providing a pleasant respite from the heat. That said, humidity levels hover at 80%, contributing to a sticky atmosphere. Rainfall is common this month, with an average precipitation of 121 mm (4.8 in) spread over 19 days, making it essential for travelers to pack accordingly. Despite the showers, the lush landscapes thrive, offering a vibrant backdrop for exploration and relaxation.
In September, Praslin, Saint Lucia experiences warm and inviting temperatures that signal the tail end of summer. With a minimum of 25°C (76°F) and a peak maximum reaching 32°C (90°F), this month presents a delightful blend of warmth. The average temperature settles at 28°C (83°F), maintaining a comfortable and tropical atmosphere, perfect for beach activities and outdoor exploration. As the temperatures slightly rise from previous months, it hints at the shifting seasons, yet the consistency in warmth showcases Praslin's enchanting climate, making September an enticing time to visit this Caribbean gem.
September marks a significant peak in precipitation for Praslin, Saint Lucia, with an average of 121 mm (4.8 in) of rain over 19 days. This surge is part of a noticeable trend, as the island experiences its highest rainfall in the latter part of the year. Following a gradual increase from 105 mm in July and 113 mm in August, September sets the stage for October's even heavier downpour of 128 mm (5.1 in), indicating that summer's dry spell has officially given way to a wetter autumn. With nearly every day in September experiencing some rainfall, visitors should be prepared for showers, which play a vital role in nourishing the island's lush landscapes.
Experiencing September's humidity in Praslin, Saint Lucia reveals a satisfying stability, with levels hovering around 80%. This month reflects a slight dip from the peak of 84% in July, suggesting a gradual easing as the transition to fall begins. September maintains the moderate humidity trend seen throughout the year, particularly consistent with the preceding months of August (81%) and May (80%). As the tropical climate of Saint Lucia continues to embrace its lush scenery, visitors can expect comfortable conditions that invite exploration and relaxation alike. Overall, September offers a harmonious blend of warmth and moisture, embodying the island's enchanting atmosphere.
September in Praslin, Saint Lucia, continues a streak of intense sun exposure, maintaining a high UV Index of 14, categorized as extreme. This trend follows several months of similarly severe UV levels, peaking in March, April, May, August, and now September, where the burn time remains as brief as 10 minutes. Such conditions serve as a reminder for visitors and locals alike to take precautions against the sun's rays while enjoying the island’s stunning beaches and vibrant nature. As the year transitions towards October with a slightly lower UV Index of 12, the need for sun safety remains paramount. For more detailed insights, check the Praslin UV Index.
UV Risk Categories
September in Praslin, Saint Lucia, offers a welcoming embrace of sunshine, with approximately 319 hours of glorious sunlight. This month, while slightly less than the sunny peak of 355 hours in May, still provides ample opportunity to soak in the vibrant Caribbean atmosphere. As the dry season begins to approach, sunshine remains abundant, with hours of daylight decreasing only modestly compared to the summer months where July and August boast over 340 hours each. Overall, September strikes a perfect balance, inviting travelers to enjoy the pleasant warmth and clear skies before the shift toward the cooler months ahead. Whether lounging on the beach or exploring the lush landscapes, visitors can relish in the extended hours of sunshine that Praslin has to offer.
September in Praslin, Saint Lucia brings a moderate likelihood of sunny weather, with a 51% chance of sunshine gracing the island. This marks a slight improvement from the wetter months of June (29%) and July (46%), reflecting the area's transition toward the more consistently sunny spell of fall. While the probability of bright days dips after this month, October follows closely with 47%, indicating that visitors can still enjoy reasonable weather before the return of higher rainy trends in the early months of the year. Overall, September stands as a balanced choice for those looking to soak up some sun amidst the beauty of Saint Lucia.
As summer transitions to autumn in Praslin, Saint Lucia, September enjoys a generous 12 hours of daylight, continuing the trend established since March. This consistent exposure to sunlight not only enhances the island’s vibrant landscapes but also invites visitors to revel in outdoor activities against the backdrop of lush surroundings. Following a period of steady daylight from March through August, the sun begins its retreat towards the end of the year, with October bringing a reduction to 11 hours. This seamless shift in daylight hours reflects the island's tropical rhythm, where time seems to linger just a little longer under the sun, especially in the captivating month of September.
As September rolls into Praslin, Saint Lucia, the island experiences a noticeable shift in its breezy ambiance, with average wind speeds dipping to 3.9 m/s (9 mph)—the calmest point of the year. Following the lively gusts of the earlier summer months, this gentle breeze signals a transitional phase. The light winds create an inviting atmosphere, perfect for relaxing on pristine beaches or enjoying leisurely strolls along the coastline. While the winds may be quieter compared to the bustling earlier months, they still whisper the essence of the island's tropical charm, providing a serene backdrop for those seeking solace before the seasonal shift returns in October. The overall trend from June through September showcases a gradual decline, reflecting the subtle changes of the approaching autumn, yet still allowing the warmth of Saint Lucia to shine through.
Weather in Praslin varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Praslin, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present distinct weather characteristics. In September, temperatures range from a minimum of 25°C (76°F) to a maximum of 32°C (90°F), with an average of 28°C (83°F). The month is relatively wet, receiving about 121 mm (4.8 in) of rain over 19 days and maintaining high humidity at 80%. In contrast, January offers milder temperatures, with a minimum of 22°C (72°F), an average of 26°C (78°F), and a maximum of 30°C (86°F). Precipitation is significantly lower at 36 mm (1.4 in) across 15 days, and humidity remains slightly elevated at 81%. For a detailed look at the weather in January, you can visit Praslin weather in January.
When comparing the weather in September and February, September tends to be warmer, featuring minimum temperatures of 25°C (76°F) and an average of 28°C (83°F), peaking at 32°C (90°F). This month also experiences significant rainfall, with 121 mm (4.8 in) of precipitation falling over 19 days, resulting in a humid atmosphere with a consistent 80% humidity level. In contrast, February has milder temperatures, with minimums of 21°C (71°F) and an average of 25°C (78°F), reaching a maximum of 30°C (86°F). Additionally, February sees much less rainfall, with only 33 mm (1.3 in) over 12 days, maintaining the same humidity of 80%. For a more detailed look at February conditions, visit Praslin weather in February.
In comparing the weather of September and March, September tends to be warmer, with average temperatures reaching 28°C (83°F) compared to March's 26°C (79°F). Additionally, September experiences higher maximum temperatures of 32°C (90°F), while March peaks at 30°C (85°F). Precipitation levels also differ significantly; September receives 121 mm (4.8 in) over 19 days, whereas March sees just 38 mm (1.5 in) across 15 days. Despite both months having a humidity level of 80%, the overall climate in September is marked by more rain and slightly hotter temperatures. For a detailed look at March weather, you can check Praslin weather in March.
When comparing the weather in September and April, we see some distinct differences. September features higher temperatures, with a minimum of 25°C (76°F) and an average of 28°C (83°F), reaching up to 32°C (90°F). In contrast, April has slightly cooler temperatures, with a minimum of 23°C (73°F) and an average of 26°C (80°F), peaking at 31°C (87°F). Precipitation is notably heavier in September, totaling 121 mm (4.8 in) over 19 days, while April experiences significantly less rainfall at 35 mm (1.4 in) across 14 days. Despite this, both months maintain a high level of humidity, with September hovering around 80% and April at 79%. For more detailed insights, you can check Praslin weather in April.
When comparing the weather in September and May, both months exhibit warm temperatures with high humidity levels at 80%. September typically sees slightly higher temperatures, with average daytime highs reaching 32°C (90°F) compared to May's peak of 31°C (88°F). While September experiences more precipitation, averaging 121 mm (4.8 in) over 19 days, May is considerably drier, with only 39 mm (1.6 in) over 13 days. For more detailed information on May weather, you can visit Praslin weather in May.
In comparison to June, September tends to be slightly warmer, with average temperatures reaching 28°C (83°F) compared to June's 27°C (81°F). Both months experience high humidity levels, with September at 80% and June at 83%. However, September sees significantly more precipitation, with 121 mm (4.8 in) over 19 days, whereas June has only 65 mm (2.6 in) across 16 days. For further details, you can check Praslin weather in June.
In comparing the weather of September and July, September tends to be slightly warmer, with an average temperature of 28°C (83°F) compared to July's 27°C (81°F). The maximum temperatures are also a bit higher in September, reaching up to 32°C (90°F) compared to 31°C (89°F) in July. However, September is characterized by increased rainfall, with 121 mm (4.8 in) of precipitation over 19 days, while July experiences 105 mm (4.1 in) over 24 days. Humidity remains relatively high in both months, at 80% for September and 84% for July, making the summer months both warm and humid. For a more detailed look at July weather, you can visit Praslin weather in July.
When comparing the weather in September and August, both months display warm temperatures with slight variations. September features a minimum temperature of 25°C (76°F) and an average of 28°C (83°F), peaking at 32°C (90°F). In comparison, August has a minimum of 24°C (76°F), an average of 28°C (82°F), and a maximum of 31°C (89°F). Precipitation in September is slightly higher at 121 mm (4.8 in) over 19 days, whereas August sees 113 mm (4.5 in) of rain over 25 days. Humidity levels are fairly comparable, with September at 80% and August at 81%. For more detailed insights on weather patterns, you can check Praslin weather in August.
In September, temperatures ranged from a minimum of 25°C (76°F) to a maximum of 32°C (90°F), with an average of 28°C (83°F). The month saw significant rainfall, with 121 mm (4.8 in) across 19 days, and humidity levels averaged around 80%. In contrast, October experiences slightly cooler temperatures, with a minimum of 24°C (76°F) and an average of 27°C (81°F), while still peaking at 32°C (89°F). Precipitation increases to 128 mm (5.1 in) over 21 days, and humidity also rises slightly to 82%. For more detailed information, you can check Praslin weather in October.
In September, temperatures tend to be slightly higher, with a minimum of 25°C (76°F) and a maximum of 32°C (90°F), averaging around 28°C (83°F). The month experiences significant rainfall, with 121 mm (4.8 in) of precipitation over 19 days and humidity levels around 80%. By November, the weather remains warm but marginally cooler, with a minimum of 24°C (75°F) and a maximum of 31°C (87°F), averaging 27°C (81°F). Precipitation decreases to 103 mm (4.1 in) over 21 days and humidity rises slightly to 83%. Overall, while both months are warm and humid, November offers slightly cooler temperatures and less rainfall compared to September. For more information, check out Praslin weather in November.
In comparing the weather between September and December, September tends to be warmer overall, with average temperatures reaching 28°C (83°F), peaking at 32°C (90°F). The month is also characterized by significantly higher precipitation, with 121 mm (4.8 in) over 19 days, contributing to a humid atmosphere with a humidity level of 80%. In contrast, December features slightly cooler average temperatures at 26°C (80°F) and a maximum of 30°C (86°F). Precipitation is notably reduced in December, totaling 46 mm (1.8 in) over 16 days, while humidity remains relatively high at 82%. For more specifics on December conditions, you can check Praslin weather in December.
In September, Praslin experiences a warm and humid climate, characterized by average temperatures around 28°C and an enduring humidity of 80%. Unlike other months, this period sees frequent rain, with precipitation occurring on about 19 days, contributing to a total of 121 mm of rainfall. This combination of warmth and moisture creates a lush environment, but travelers should be prepared for occasional showers. This month stands out as a transition point, where the rains gently pave the way for the drier months ahead. For a detailed look at how September weather fits into the overall climate patterns, visit Praslin Climate.