Last updated: August 21, 2025
In Saint Ann's Bay, Jamaica, September weather offers a warm tropical ambiance, characterized by a maximum temperature reaching 33°C (91°F) and an average temperature of 27°C (82°F). The mercury rarely dips below a pleasant 24°C (75°F), making it ideal for warm-weather activities. However, this month brings significant rainfall, with an average precipitation amount of 165 mm (6.5 in) across 21 days, contributing to a humidity level of 75%. This combination of warmth and moisture paints a vivid picture of a lush, vibrant landscape, perfect for those seeking both adventure and relaxation in a tropical paradise.
September in Saint Ann's Bay, Jamaica, showcases warm tropical weather, with temperatures reflecting the peak of summer. The month offers a minimum of 24°C (75°F), which keeps the nights comfortably warm, while the average temperature settles around 27°C (82°F). During the day, you can expect highs reaching up to 33°C (91°F), maintaining the consistent, balmy vibes characteristic of the summer months. This trend of warmth continues from August, where similar high temperatures prevail, indicating that early autumn doesn’t bring a significant cool-down just yet. Visitors can enjoy warm ocean breezes, making it an ideal time for beach activities and exploring the island’s natural beauty. As the month progresses, the transition towards slightly cooler October temperatures begins, but for September, the heat remains a vibrant part of the island's charm.
In September, Saint Ann's Bay, Jamaica, experiences a significant uptick in rainfall, with an impressive 165 mm (6.5 in) of precipitation falling over 21 days. This marks the peak of the rainy season, showcasing a clear trend of increased moisture as the month progresses. Following the lighter showers of the summer months, September transitions into a period of intense rainfall, setting the stage for even wetter conditions in October, which averages 182 mm (7.1 in). The notable surge in both precipitation amounts and rainy days during September highlights Jamaica's tropical climate, providing essential water for its lush landscapes while also reminding visitors to prepare for the potentially dramatic weather patterns during this time of year.
In Saint Ann's Bay, Jamaica, September experiences a noteworthy humidity level of 75%, marking a slight decline from the more humid months of July and August, which peak at 73% and 76% respectively. This subtle decrease is part of a broader pattern seen as the year progresses, where humidity tends to peak in the summer months before gradually retreating into the autumn. Interestingly, while September’s humidity remains relatively high, it is important to note that it ties with October's levels, suggesting a climatic stability as the season transitions. Overall, the trend indicates a comforting yet persistent tropical humidity, characteristic of Saint Ann's Bay throughout the year.
In September, visitors and locals in Saint Ann's Bay, Jamaica are greeted with a consistent UV Index of 13, categorized as extreme. This marks the continuation of a summer pattern where the sun's intensity remains notably high, reminiscent of the peak values seen from March to August. With a burn time of just 10 minutes, it's crucial for those soaking in the tropical sun to take precautionary measures against skin damage. As the month transitions into the slightly cooler October, the UV Index will begin to decline, falling to 12, yet it’s a stark reminder of the region's persistent sun strength. For more detailed insights, check out the full analysis of the Saint Ann's Bay UV Index.
UV Risk Categories
In Saint Ann's Bay, Jamaica, September brings a delightful balance of sunshine with 317 hours of radiant light, a perfect blend of the vibrant summer months and the gentle transition into autumn. The trend of abundant sunshine peaks in the summer, notably in July with 349 hours, and remains impressive through August, only to slightly dip in September. While the daylight hours decrease, the warmth and brilliance of the Jamaican sun continue to enchant visitors. Following September, October sees a modest decline to 303 hours, yet the residual glow of summer lingers, indicating that this coastal paradise remains a sun-soaked haven throughout the year.
September in Saint Ann's Bay, Jamaica, offers a moderate chance of sunny weather, with a 52% likelihood of sunshine. This month marks a transition as the summer months of June and August, both with lower probabilities of sun at 43%, give way to a more promising forecast. While September's sun chance is not as robust as the peak months of February, which shines with a 77% likelihood, it still provides a pleasant environment for outdoor activities. As the year progresses into October, sun chances dip to 39%, emphasizing September as an ideal window for enjoying the island’s natural beauty before the drier months roll in.
In Saint Ann's Bay, Jamaica, the rhythm of daylight reflects the subtle changes of the seasons. September maintains a balance with 12 hours of daylight, mirroring the summer months of July and August. As the year unfolds, the trend shows a gradual increase in daylight duration from 11 hours in January and February to a peak of 13 hours in June and July, before gently tapering back to 11 hours by October. This consistent pattern highlights the region's lush and vibrant atmosphere, with daylight peaking during the summer months, providing ample opportunities for exploration and enjoyment of the tropical landscape.
As September rolls into Saint Ann's Bay, Jamaica, the gentle caress of the wind takes on a notably softer tone, with average wind speeds dropping to 2.7 m/s (6 mph). This marks a significant decline from the breezier months preceding it, where winds typically hovered around 3.7 to 4.3 m/s (8 to 10 mph) from January through August. The transition to early fall brings about a serene calm, in stark contrast to the summer's more vigorous gusts. With the winds at their lightest, it’s an ideal time for leisurely beach strolls and tranquil afternoons, inviting both locals and visitors to revel in the unhurried rhythm of island life. This pattern of reduced winds continues into October and November, suggesting a gentle embrace of the season as the year winds down.
Weather in Saint Ann's Bay varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Saint Ann's Bay, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather tends to be warmer and more humid, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 33°C (91°F). This month also sees significant rainfall, accumulating to about 165 mm (6.5 in) over 21 days, which contributes to a humidity level of around 75%. In contrast, January offers a milder climate with average temperatures ranging from 19°C (66°F) to 29°C (85°F). Rainfall is noticeably lighter, totaling approximately 68 mm (2.7 in) over just 13 days, and humidity drops slightly to 70%. For more detailed information on January weather, you can visit Saint Ann's Bay weather in January.
September in Saint Ann's Bay features warmer temperatures with a minimum of 24°C (75°F) and averages reaching 27°C (82°F), peaking at a high of 33°C (91°F). This month also experiences significant rainfall, with 165 mm (6.5 in) spread over 21 days, contributing to a humid atmosphere with humidity levels around 75%. In contrast, February offers a milder climate, with temperatures ranging from a minimum of 20°C (69°F) to an average of 25°C (76°F), and highs of 29°C (85°F). Precipitation is notably lower in February, totaling 38 mm (1.5 in) across 14 days, and the humidity level is slightly lower at 67%. For a more detailed look at February weather, visit Saint Ann's Bay weather in February.
In comparing the weather of September and March, notable differences emerge in temperature and precipitation. September tends to be warmer, with average temperatures reaching around 27°C (82°F) and highs of up to 33°C (91°F), while March is slightly cooler, averaging 25°C (77°F) with maximum temperatures of 31°C (87°F). Additionally, September experiences significantly more rainfall, with 165 mm (6.5 in) over 21 days, compared to March's 83 mm (3.3 in) over 18 days. Humidity levels are also higher in September at 75%, whereas March has a more comfortable average of 66%. For more detailed insights, check out Saint Ann's Bay weather in March.
In comparison to September, April boasts slightly cooler temperatures, with an average of 26°C (78°F) compared to September's 27°C (82°F). While both months experience warm conditions, September reaches higher maximums, peaking at 33°C (91°F) versus April’s maximum of 31°C (88°F). Additionally, September is significantly rainier, recording 165 mm (6.5 in) over 21 days, while April sees only 85 mm (3.3 in) across 15 days. The humidity is also lower in April at 66%, in contrast to September’s 75%. For more details on April weather, visit Saint Ann's Bay weather in April.
When comparing the weather in September to that of May, we observe some notable differences. September tends to be warmer, with average temperatures reaching 27°C (82°F) and maximums climbing to 33°C (91°F), while May has slightly cooler averages of 26°C (80°F) and maximums of 32°C (90°F). Additionally, September experiences more precipitation, totaling 165 mm (6.5 in) over 21 days, compared to May's 136 mm (5.3 in) over 18 days. Humidity levels are also higher in September at 75%, in contrast to May's 64%. For those interested in the specifics of May's climate, you can find more details here: Saint Ann's Bay weather in May.
In comparing the weather of September and June, we find that both months share similar temperature patterns, with average highs reaching around 33°C (91°F) and lows hovering close to 24°C (75°F) in September and 23°C (74°F) in June. However, September is notably wetter, receiving 165 mm (6.5 in) of precipitation over 21 days compared to June's lighter 65 mm (2.6 in) spread over just 12 days. Additionally, humidity levels are higher in September at 75%, compared to June's 66%, making September feel more muggy and damp. For those interested in the specifics of June weather, you can find more information at Saint Ann's Bay weather in June.
In comparing the weather of September and July, we see that both months feature similar temperature ranges, with July having a slightly warmer average temperature of 28°C (82°F) compared to September's 27°C (81°F). However, September experiences significantly higher precipitation, with 165 mm (6.5 in) over 21 days, making it much wetter than July, which receives only 70 mm (2.8 in) across 14 rainy days. Additionally, humidity levels are slightly elevated in September at 75%, compared to 73% in July, contributing to a muggier feel as the summer draws to a close. For more detailed insights, check out Saint Ann's Bay weather in July.
In comparing the weather between September and August, both months showcase warm temperatures with similar minimums and maximums. September experiences slightly cooler average temperatures at 27°C (82°F) compared to August's 28°C (83°F), while both months maintain a minimum of 24°C (75°F) and a peak of 33°C (91°F). However, September is notably wetter, boasting a higher precipitation total of 165 mm (6.5 in) over 21 days, compared to August's 92 mm (3.6 in) over 17 days. Humidity levels are similar, with September at 75% and August slightly higher at 76%. For more detailed insights on August's weather, you can check Saint Ann's Bay weather in August.
In September, temperatures in Saint Ann's Bay typically range from a minimum of 24°C (75°F) to a maximum of 33°C (91°F), with an average temperature of 27°C (82°F). The month also sees considerable rainfall, with 165 mm (6.5 in) of precipitation spread over 21 days, maintaining a humidity level of 75%.
As we transition into October, temperatures remain relatively stable, with a minimum of 24°C (75°F), an average of 27°C (80°F), and a slightly cooler maximum of 31°C (88°F). However, October experiences an increase in rainfall, totaling 182 mm (7.1 in) over 24 days, still keeping the humidity at 75%. For a closer look at the weather patterns in October, you can refer to Saint Ann's Bay weather in October.
September and November exhibit notable differences in weather characteristics. In September, temperatures are generally warmer, with an average of 27°C (82°F) and a maximum reaching up to 33°C (91°F). Precipitation is also higher, with 165 mm (6.5 inches) spread over 21 days. In contrast, November experiences slightly cooler temperatures, averaging 26°C (79°F) and peaking at 30°C (86°F). The total precipitation decreases to 143 mm (5.6 inches) over 22 days, while humidity remains relatively high at 77%. Overall, November brings slightly more comfortable weather conditions compared to the warmer and wetter September. For further details, visit Saint Ann's Bay weather in November.
In comparing the weather from September to December, September tends to be warmer and wetter. With minimum temperatures around 24°C (75°F) and average highs reaching up to 33°C (91°F), it creates a tropical atmosphere, complemented by significant precipitation of 165 mm (6.5 in) over 21 days. Humidity hovers around 75%, contributing to a muggy environment.
In contrast, December experiences slightly cooler temperatures, with a minimum of 22°C (71°F) and an average maximum of 30°C (86°F). The rainfall decreases considerably to 86 mm (3.4 in) over 18 days, and humidity drops slightly to 73%, making the weather feel more comfortable. For more details on this month, visit Saint Ann's Bay weather in December.
As September unfolds in Saint Ann's Bay, the weather showcases a unique blend of warmth and moisture that sets it apart from other months. With maximum temperatures peaking at 33°C (91°F), the days remain toasty, while the average temperature hovers around a comfortable 27°C (82°F). However, this warmth comes accompanied by increased humidity levels at 75% and significant rainfall, as the area experiences about 21 days of precipitation totaling 165 mm (6.5 in). This combination creates a lush, vibrant atmosphere typical of the late summer months in the Caribbean. For a deeper dive into the climate patterns of this beautiful destination, explore Saint Ann's Bay Climate.