Last updated: October 31, 2025
In September, Marigot, Saint Martin experiences a tropical climate characterized by pleasantly warm temperatures, averaging around 28°C (82°F). Daily highs can reach up to 29°C (85°F), while lows settle comfortably at 25°C (77°F). This month also sees a fair share of rainfall, with a total precipitation of 161 mm (6.3 in) spread across approximately 22 days, contributing to a humidity level of 80%. Visitors to this charming island can expect a lively yet soothing atmosphere, perfect for those seeking both adventure and relaxation amidst lush tropical surroundings.
In September, Marigot, Saint Martin basks in warm temperatures, reflecting the peak of the Caribbean's summer charm. With a minimum of 25°C (77°F) and an average of 28°C (82°F), the island remains delightful, perfectly suited for sun-soaked beach days and vibrant outdoor activities. The maximum temperature reaches a comfortable 29°C (85°F), maintaining the island's reputation for balmy weather as summer transitions into fall. This month stands out with stable warmth, continuing the rising trend seen since the hotter months of July and August, making September an enticing time for visitors seeking both relaxation and adventure.
In September, Marigot, Saint Martin, experiences a significant surge in rainfall, with 161 mm (6.3 in) of precipitation over 22 days. This marks a notable increase from the preceding months, where rainfall remained below 100 mm, peaking at 87 mm (3.4 in) in August. The heightened precipitation during September is characteristic of the hurricane season, showcasing the island's vulnerability to tropical weather patterns. As the summer months transition into fall, locals and visitors alike should prepare for frequent showers that can refresh the landscape, albeit occasionally disrupting outdoor activities. The trend reveals a clear shift in climate, emphasizing September as the month when the island dresses in its wettest attire.
September in Marigot, Saint Martin, continues the trend of elevated humidity characteristic of the region's tropical climate. With humidity levels settling at 80%, September reflects a slight dip from the peak of 83% experienced in July, yet it remains higher than the earlier months of the year. This gradual increase from 77% in January to a summer high hints at the natural rhythm of the seasons, where warmer temperatures lead to rising moisture levels. As the island transitions into October, residents and visitors alike can expect humidity to decrease marginally to 79%, but the lingering warmth of September ensures that the air still carries that unmistakable tropical richness.
Throughout September in Marigot, Saint Martin, residents and visitors alike face an extreme UV Index of 14, marking one of the year's highest levels of sun exposure. With a burn time of just 10 minutes, it’s crucial to take protective measures against harmful UVA and UVB rays. This month continues the trend of extreme UV levels seen from February through August, showcasing a consistent need for vigilance regarding sun safety. As the sun remains intense before the gradual decline in October, awareness becomes key to enjoying the beautiful tropical climate without the risks of overexposure. For more information on weekly forecasts and safety tips, visit Marigot UV Index.
UV Risk Categories
September in Marigot, Saint Martin, basks in 322 hours of glorious sunshine, making it a delightful month for those seeking warmth and outdoor adventures. As summer transitions into autumn, sunshine levels remain robust, showcasing a gentle decline from the peak of May’s impressive 363 hours. This month captures the allure of Caribbean vibrancy, with slightly fewer sunny hours than the bustling summer months of July and August, yet still comfortably above average compared to the overall annual sunshine pattern. September stands as a perfect time to enjoy the island's beautiful beaches and lush landscapes, offering a blend of summer’s lingering warmth and the tranquil essence of the upcoming fall.
In September, Marigot, Saint Martin, welcomes a 58% chance of sunny weather, making it a pleasantly bright time of year. While this figure stands slightly above the summer months of June and August, it is notably better than the preceding rainy season. As the year transitions, September offers a sweet spot where sunshine begins to reclaim its place after the wetter months, aligning closely with the tail end of summer and the vibrant beginnings of autumn. With a sunny disposition, visitors can enjoy a delightful blend of warmth and clear skies, perfectly complementing the island's stunning landscapes and inviting beaches.
In September, Marigot, Saint Martin enjoys a delightful 12 hours of daylight, maintaining the summer vibe as the days gradually shorten. This month marks a subtle transition, echoing the peak daylight of June and July, which basked in 13 hours of sunlight. While the daylight duration begins to decrease towards the end of the year, September's illumination still offers plenty of time for outdoor activities and relaxation. As the island shifts from the long summer days to the shorter ones ahead, this transition remains gentle, inviting locals and visitors alike to savor the sun-drenched beauty of early autumn.
As summer transitions into fall, September in Marigot, Saint Martin, brings a gentle breath of wind, with an average speed of 5.3 m/s (12 mph)—the calmest of the year. This notable dip from the preceding months signals a shift in the island's weather patterns, as winds typically peak in mid-summer. Following the brisk gusts of July and August, September’s softer breezes offer a refreshing, tranquil atmosphere, perfect for leisurely days on the beach or exploring the vibrant local culture. As the island gears up for the autumn months, the winds gradually pick up again in October, hinting at the dynamic changes that await as the season unfolds.
Weather in Marigot varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Marigot, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by warmer temperatures, with an average of 28°C (82°F) and a maximum reaching 29°C (85°F). This month also experiences significantly higher precipitation, totaling 161 mm (6.3 in) over 22 days, and a humidity level of 80%. In contrast, January offers a slightly cooler climate, with average temperatures of 25°C (78°F) and a maximum of 27°C (81°F). Precipitation during this month is considerably lower, at 35 mm (1.4 in) across 14 days, and humidity levels drop slightly to 77%. For a more detailed look at January weather, check out this link: Marigot weather in January.
In September, the weather is warmer with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 29°C (85°F), and an average of 28°C (82°F). This month also sees significant rainfall, with a total of 161 mm (6.3 in) over 22 rainy days, contributing to a high humidity level of 80%. In contrast, February is cooler, featuring temperatures that range from a low of 22°C (72°F) to a high of 26°C (80°F), with an average temperature of 25°C (77°F). The precipitation levels are much lower at 35 mm (1.4 in) across 11 days, and humidity is slightly less at 77%. For more specific details on February weather, check out Marigot weather in February.
September weather is characterized by warmer temperatures, with a minimum of 25°C (77°F) and an average of 28°C (82°F), reaching a maximum of 29°C (85°F). It is also significantly wetter, receiving 161 mm (6.3 in) of precipitation over 22 days, contributing to a high humidity level of 80%. In contrast, March experiences milder temperatures, with a minimum of 22°C (73°F) and an average of 25°C (77°F), peaking at 26°C (79°F). This month boasts much lower precipitation at 27 mm (1.1 in) across just 10 days and a slightly lower humidity level of 77%. For more detailed information, check out Marigot weather in March.
In comparing the weather of September and April, September tends to be warmer and significantly wetter. September boasts average temperatures around 28°C (82°F) with a maximum of 29°C (85°F), while April's temperatures are slightly cooler, averaging 25°C (78°F), with a maximum of 27°C (81°F). Additionally, September experiences far more rainfall, totaling 161 mm (6.3 in) over 22 days, compared to April's lighter precipitation of 35 mm (1.4 in) spread across only 11 days. Humidity levels are relatively comparable, with September at 80% and April at 78%. For more specific details on April weather, you can check Marigot weather in April.
In comparing the weather of September and May, September tends to be warmer and more humid. With average temperatures reaching 28°C (82°F) and maximums of 29°C (85°F), it slightly outpaces May, which has an average temperature of 26°C (79°F) and a maximum of 28°C (82°F). The humidity in September is notably high at 80%, compared to May's 79%. Additionally, September experiences significantly more rainfall, with 161 mm (6.3 in) over 22 days, whereas May sees only 49 mm (1.9 in) over 11 days. For more detailed insights into the weather conditions in May, you can check Marigot weather in May.
In September, the weather tends to be slightly warmer than in June, with average temperatures reaching around 28°C (82°F) compared to June's average of 27°C (81°F). Both months share a similar minimum temperature of about 25°C (77°F), but September sees a higher maximum temperature of 29°C (85°F) while June peaks at 28°C (83°F). Precipitation is a significant factor in September, with 161 mm (6.3 in) of rain over 22 days, whereas June experiences much less rain, totaling 50 mm (2.0 in) over 14 days. Humidity levels are comparable, with September at 80% and June slightly less at 81%. For more detailed insights, you can check out Marigot weather in June.
In comparing the weather of September and July, both months feature similar temperature ranges, with September having slightly higher averages and maximums. September enjoys minimums of 25°C (77°F) and averages around 28°C (82°F), just above July's average of 27°C (81°F). However, September is notably wetter, receiving 161 mm (6.3 in) of precipitation over 22 days, compared to July's 83 mm (3.3 in) across 17 days. Additionally, humidity levels are slightly higher in July at 83% versus 80% in September. For more details on July's weather, you can visit Marigot weather in July.
In comparing the weather between August and September, both months experience similar temperature ranges, with minimum temperatures around 25°C (77°F) and average highs of 28°C (82°F). However, September tends to be wetter, recording 161 mm (6.3 in) of precipitation over 22 days, while August sees significantly less rainfall at 87 mm (3.4 in) across 16 days. Additionally, humidity levels are slightly lower in August at 82%, compared to 80% in September. For more detailed information, you can check Marigot weather in August.
In comparing the weather between September and October, we see a slight drop in average temperatures, with September averaging 28°C (82°F) compared to October's 27°C (81°F). Both months experience warm minimum temperatures of 25°C (77°F), while the maximums remain similar at 29°C (85°F) for September and 29°C (84°F) for October. Notably, October sees a reduction in precipitation, with 113 mm (4.5 in) compared to September's 161 mm (6.3 in), and fewer rainy days—18 days in October versus 22 days in September. Humidity levels are also marginally lower in October at 79%, down from 80% in September. For more details, you can check out Marigot weather in October.
In comparing the weather between September and November, we see that September tends to be warmer, with an average temperature of 28°C (82°F) compared to November's average of 27°C (80°F). While September experiences higher precipitation, totaling 161 mm (6.3 in) over 22 days, November sees a significant decrease in rainfall, with only 96 mm (3.8 in) spread over 17 days. Humidity levels remain fairly consistent, at 80% in September and 79% in November. For more detailed information, you can check Marigot weather in November.
In comparing the weather of September and December, September tends to be warmer and wetter. September boasts a minimum temperature of 25°C (77°F) and an average of 28°C (82°F), with significant rainfall of 161 mm (6.3 in) over 22 days, resulting in a high humidity level of 80%. On the other hand, December features slightly cooler temperatures, with a minimum of 24°C (75°F) and an average of 26°C (79°F). The precipitation drops significantly to 48 mm (1.9 in) over 16 days, and the humidity also decreases slightly to 78%. For more detailed information, you can check Marigot weather in December.
September in Marigot offers a unique climate experience, with temperatures remaining warm and inviting, though it's notably wetter than other months. With high humidity levels and frequent rainfall, this month serves as the tail end of the wet season, creating a lush and vibrant environment. Visitors should be prepared for occasional downpours, as the region experiences the highest precipitation of the year, making it distinct from the drier months. Despite the rain, the temperatures remain comfortably warm, allowing for plenty of opportunities to explore the stunning scenery. Embrace the charm of September weather in Marigot, and for more insights on seasonal patterns, check out Marigot Climate.