Last updated: August 21, 2025
September in Mandeville, Jamaica presents a warm tropical climate, with daily maximum temperatures reaching up to 36°C (97°F) and an average of 28°C (82°F). Nights offer a more comfortable low of 23°C (74°F). This month also marks a period of frequent rainfall, as 107 mm (4.2 in) of precipitation falls over approximately 20 days, contributing to a humidity level of 77%. As the island grapples with these elements, visitors and residents alike can expect a lush landscape, albeit accompanied by the occasional downpour.
In September, Mandeville, Jamaica, continues to bask in warm tropical weather, with temperatures reflecting a slight dip from the summer's peak. The minimum temperature hovers at a comfortable 23°C (74°F), while the average reaches 28°C (82°F), creating a pleasant balance for visitors. With maximum temperatures peaking at 36°C (97°F), this month maintains a resemblance to the preceding summer months, although it shows hints of the cooling fall season. Overall, September in Mandeville offers a delightful blend of warmth and moderate humidity, making it an attractive time for travelers seeking the sun while enjoying the vibrant local culture.
September marks a significant peak in precipitation for Mandeville, Jamaica, with 107 mm (4.2 in) of rain falling over 20 days. This notable increase sets September apart as the month with the highest rainfall in the year, reflecting the transition into the more intense rainy season. The month stands out not only for the volume of rain but also for the frequency of precipitation, as nearly two-thirds of September is affected by wet weather. This trend highlights a dramatic increase from the drier months preceding it, especially compared to August's 91 mm (3.6 in) over 15 days. As the region moves into October, precipitation levels continue to rise, suggesting a sustained rainy period that shapes the local climate and environment during this time.
In September, Mandeville, Jamaica, experiences a humidity level of 77%, aligning closely with the consistent patterns seen throughout the year. The humidity fluctuates slightly, peaking at 80% in July before tapering off to 78% in August and then stabilizing in September. This trend showcases Mandeville's generally humid tropical climate, particularly during the summer months, while the early part of the year hovers around 76-77%. As the calendar shifts into October, the humidity dips slightly, hinting at the approach of the dry season. Despite these minor variations, the overall experience of humidity remains a defining feature of Mandeville's charm, ensuring a lush and vibrant environment year-round.
In September, Mandeville, Jamaica experiences a UV Index of 12, placing it in the extreme exposure category with a burn time of just 10 minutes. This trend reflects the region's consistently high UV levels throughout the summer months, where the Index peaked at 14 in April before stabilizing at 13 for several months. As we transition into the fall, the UV Index remains significant, mirroring the levels seen in October. Such high ratings underscore the importance of sun protection measures year-round. For further insights on UV levels throughout the year, visit Mandeville UV Index.
UV Risk Categories
September in Mandeville, Jamaica, welcomes a delightful embrace of sunshine, with an impressive 318 hours of sunshine gracing the month. This marks a slight dip from the peak summer months of July and August, which enjoyed 350 and 338 hours respectively, showcasing the region's consistent sun-kissed allure. As autumn approaches, September maintains a robust count of sunlight, keeping close company with its spring counterparts and ensuring that outdoor adventures remain vibrant and inviting. With the days gradually shortening, the warm glow of September serves as a gentle reminder of the vibrant energy that sustains this enchanting destination throughout the year.
September in Mandeville, Jamaica, offers a 54% chance of sunny weather, making it a month where the sun can still shine through the clouds. This likelihood mirrors January's sunny prospects, highlighting a streak of variability throughout the summer months, with chances declining to a low of 42% in August. Following September, the likelihood of sun decreases further in October and November, reaching a yearly low of 39% in November. Overall, while September continues to present a fair opportunity for sunny days, travelers should be prepared for the transition into the wetter months ahead.
As summer fades into early autumn, September in Mandeville, Jamaica maintains a delightful balance of 12 hours of daylight, mirroring the longer days of May and August. This consistency highlights a gradual transition from the sun-drenched days of summer, which peak at 13 hours in June and July, to the shorter sunlit periods of late autumn. With daylight beginning to decrease in October, September offers a perfect opportunity to savor the lingering warmth and brightness of summer before the nights begin to creep in. The rhythm of daylight in Mandeville reflects not only the seasonal shifts but also invites residents and visitors to revel in the sun-kissed days that lead to the cooler months ahead.
In September, Mandeville, Jamaica, experiences a noticeable decline in wind speed, with an average of just 1.8 m/s (4 mph). This shift marks the tail end of the summer months, following a more breezy summer pattern where speeds hovered around 3.2 m/s (7 mph) during July and June. As autumn sets in, the winds mellow, contrasting the lively gusts of early summer and hinting at a transition into the drier, cooler months ahead. This lower wind speed, reflective of the calm before the seasonal change, provides a serene backdrop for both locals and visitors, inviting a moment of tranquility amidst the vibrant Mandeville landscape.
Weather in Mandeville varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mandeville, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is marked by warmer temperatures, with a minimum of 23°C (74°F) and an average of 28°C (82°F), peaking at 36°C (97°F). This month also experiences significant precipitation, with 107 mm (4.2 in) of rain over approximately 20 days, leading to a humid atmosphere at 77%. In contrast, January offers a milder climate, beginning with a minimum temperature of 19°C (66°F) and averaging 25°C (78°F), reaching a maximum of 33°C (92°F). Rainfall is markedly lower, with just 16 mm (0.6 in) over 3 days, but the humidity remains consistent at 77%. For a closer look at the weather conditions during January, you can visit Mandeville weather in January.
September and February showcase distinct weather patterns, reflecting the transition from late summer to early spring. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 36°C (97°F), with an average of 28°C (82°F). This month is characterized by significant rainfall, with 107 mm (4.2 in) over 20 days, resulting in high humidity levels of 77%. In contrast, February experiences milder conditions; temperatures vary from a minimum of 20°C (68°F) to a maximum of 33°C (91°F), averaging at 26°C (78°F). Precipitation significantly decreases to 19 mm (0.8 in) over just 7 days, while humidity remains constant at 77%. For a detailed look at February weather in Mandeville, you can visit Mandeville weather in February.
In September, temperatures tend to be higher, with minimums around 23°C (74°F) and averages reaching 28°C (82°F), peaking at a sweltering 36°C (97°F). This month also sees significant rainfall, with precipitation totaling 107 mm (4.2 in) over 20 days and a humidity level of 77%. In contrast, March offers a slightly cooler climate, with minimum temperatures at 19°C (67°F), an average of 26°C (79°F), and maximums of 33°C (92°F). The precipitation drops significantly to 35 mm (1.4 in) over just 8 days, while humidity remains similar at 76%. For more details, check out Mandeville weather in March.
When comparing the weather in September and April, September tends to be warmer and more humid. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 36°C (97°F) with an average of 28°C (82°F). It also experiences higher precipitation, with about 107 mm (4.2 in) spread over 20 days. In contrast, April offers slightly cooler temperatures, with a minimum of 20°C (68°F) and a maximum of 34°C (94°F), averaging 26°C (80°F). The month sees less rainfall, totaling 57 mm (2.2 in) over just 10 days. Despite the humidity remaining consistent at 77% in both months, April's weather is generally drier, making it a more pleasant option for outdoor activities. For more details, check out Mandeville weather in April.
In comparing the weather between September and May, we can see some notable similarities and differences. September boasts slightly higher temperatures, with a minimum of 23°C (74°F) and an average of 28°C (82°F), compared to May's minimum of 21°C (71°F) and average of 27°C (81°F). Both months experience high humidity, around 77% in September and 78% in May, but September also has more rainfall, accumulating 107 mm (4.2 in) over 20 days, while May has 99 mm (3.9 in) over 15 days. For a closer look at May's weather, you can visit Mandeville weather in May. Overall, both months are warm and humid, but September tends to be slightly wetter and hotter.
In comparing the weather of September and June, we find that both months share similar temperature ranges, with minimums around 23°C (74°F) and maximums reaching up to 36°C (97°F in September and 96°F in June). September, however, experiences significantly higher precipitation, with 107 mm (4.2 in) over 20 days, compared to June’s 46 mm (1.8 in) spread across just 9 days. Humidity levels are also quite high in both months, with September at 77% and June slightly higher at 79%. For a closer look at June weather conditions in Mandeville, you can check Mandeville weather in June.
In comparing the weather of September and July, we see some notable differences. September generally has slightly cooler temperatures, with a minimum of 23°C (74°F) and an average of 28°C (82°F), whereas July has a minimum of 24°C (75°F) and an average of 29°C (84°F). The maximum temperatures also reflect this variation, with September peaking at 36°C (97°F) compared to 37°C (99°F) in July. Additionally, September experiences significantly higher precipitation, with 107 mm (4.2 in) falling over 20 days, while July sees only 55 mm (2.2 in) over 11 days, making it the drier month. Humidity levels are relatively high in both months, with September at 77% and July at 80%. For more details on July's weather, check out Mandeville weather in July.
In comparing the weather of September and August, both months exhibit similar temperature ranges, with a minimum of 23°C (74°F), an average of around 28°C (82-84°F), and a maximum of 36°C (97°F). However, September experiences slightly higher precipitation, totaling 107 mm (4.2 in) over 20 days, compared to August's 91 mm (3.6 in) over 15 days. Humidity remains quite consistent between the two months, with September's average at 77% and August's at 78%. For more detailed information about August's weather, you can explore Mandeville weather in August.
In September, the weather is characterized by warmer temperatures, with an average of 28°C (82°F) and maximum highs reaching up to 36°C (97°F). The month experiences significant rainfall, totaling 107 mm (4.2 in) over 20 days, accompanied by a high humidity level of 77%. In contrast, October sees slightly cooler temperatures, with an average of 27°C (80°F) and maximums of 35°C (96°F). Rainfall increases marginally to 127 mm (5.0 in) over 21 days, while humidity remains comparable at 76%. For a more detailed look into the October weather conditions, you can explore Mandeville weather in October.
In September, the weather is warmer with average temperatures reaching 28°C (82°F) and highs peaking at 36°C (97°F), while November sees slightly cooler conditions with average temps around 26°C (80°F) and a maximum of 34°C (94°F). Precipitation in September is also more significant, with 107 mm (4.2 in) over 20 days compared to November's 84 mm (3.3 in) across just 12 days. Humidity remains relatively similar, with September at 77% and November slightly higher at 78%. For a detailed look at November weather, check out Mandeville weather in November.
In September, the weather is significantly warmer, with average temperatures around 28°C (82°F) and maximums reaching up to 36°C (97°F). The month is also characterized by high humidity at 77% and considerable rainfall, averaging 107 mm (4.2 inches) over 20 days. In contrast, December offers a milder climate, with average temperatures dropping to 26°C (79°F) and maximums of 33°C (92°F). Additionally, rainfall is sparse in December, totaling just 20 mm (0.8 inches) over 5 days, while humidity remains relatively constant at 78%. For more details, you can visit Mandeville weather in December.
As September unfolds in Mandeville, the weather presents a distinct profile, striking a balance between warmth and moisture. With average temperatures hovering around 28°C (82°F), this month is notably warmer compared to the cooler, breezier days of preceding months. However, it also ushers in a significant increase in humidity and rainfall, with 107 mm of precipitation spread across 20 days, making it one of the wetter times of the year. While the lush landscapes thrive under these conditions, the frequent rainfall can catch visitors off guard. Overall, September stands out as a transitional month, blending summer warmth with the onset of the rainy season. For a deeper understanding of what to expect throughout the year, explore our detailed guide on Mandeville Climate.