Last updated: August 31, 2025
September in Barahona, Puerto Rico showcases a tropical climate characterized by warm temperatures and significant rainfall. With maximum temperatures reaching 32°C (90°F) and an average of 26°C (79°F), visitors can expect a humid environment, averaging 79% humidity. Rainfall is frequent, with approximately 205 mm (8.1 in) recorded over 26 days, making this month crucial for the lush, vibrant landscapes of the region. This blend of warmth and moisture creates a unique experience for those who embrace the rich beauty of Barahona during September.
In September, Barahona, Puerto Rico, maintains a warm tropical ambiance, with temperatures reflecting the lingering summer warmth. The minimum temperature hovers around 22°C (72°F), providing a comfortable start to the day, while the average temperature settles at 26°C (79°F), perfect for outdoor activities. As the sun rises higher, it can reach a maximum of 32°C (90°F), ensuring that the days remain hot and summery. Interestingly, September's climate shows consistent warmth compared to the preceding months, indicating a peak in summer heat before the gradual transition into the cooler fall temperatures of October. This blend of warmth and humidity creates an inviting atmosphere, ideal for enjoying the region's breathtaking landscapes and vibrant culture.
September marks a significant peak in precipitation for Barahona, Puerto Rico, with a staggering 205 mm (8.1 in) of rainfall over 26 days. This month's downpour is not only the highest across the year but also reflects a notable surge compared to the preceding months—August, for instance, averages 111 mm (4.4 in) over 20 days. The increase highlights a clear trend as the region transitions into its wet season, where the combination of frequent showers and prolonged wet days shapes the lush, vibrant landscapes that characterize this part of the Caribbean. As the year progresses, rain levels begin to taper off in October, returning to more moderate figures, yet September's contribution remains a crucial element of Barahona's climatic rhythm.
In Barahona, Puerto Rico, September marks a slight dip in humidity levels, averaging 79%, which is a continuation of the higher averages seen in the preceding months of July and August, both recording 80%. This trend reflects a peak in humidity during the summer, where warmer temperatures lead to elevated moisture levels in the air. As the year progresses into October, humidity decreases further to 78%, hinting at a gradual transition as the region moves into the cooler months. Overall, the annual data reveals a consistent pattern, with humidity remaining relatively high, especially during the summer, creating a tropical environment that characterizes Barahona's climate.
In September, Barahona, Puerto Rico, maintains a UV Index of 13, keeping it firmly in the extreme exposure category with a rapid burn time of just 10 minutes. This trend of high UV levels, prevalent throughout the summer months, continues into early fall, alongside August's similar index. The extreme UV conditions throughout these months emphasize the importance of sun protection, as residents and visitors alike should remain vigilant against harmful UV rays. Thankfully, as October approaches, there's a slight dip in the index to 12, but the caution remains. For those exploring the sun-soaked beauty of Barahona, understanding the UV Index is essential – check the full details at Barahona UV Index.
UV Risk Categories
September in Barahona, Puerto Rico, greets visitors with a delightful 311 hours of sunshine. Following the sun-drenched summer months, where May shines the brightest with 356 hours, September marks a gentle decline in daylight, yet still offers ample opportunities to bask in the warmth. This month typically features a blend of clear skies and the lingering remnants of summer's radiance, ensuring that outdoor adventures remain enticing. With sunshine hours gradually tapering off into October's 310 hours, September serves as a reminder of the vibrant summer days while ushering in the subtler hues of the autumn season. Overall, the consistent sunshine throughout the year, particularly in the summer months, highlights Barahona's charm as a sun-soaked paradise.
In September, Barahona, Puerto Rico, experiences a 43% chance of sunny weather, which aligns with the patterns observed in January and October. This month marks a transitional period as the summer heat begins to wane, and while the likelihood of sunshine is relatively modest, it mirrors the early months of the year. Comparatively, the summer months show a marked decline in sunny days, with June through August dropping to between 23% and 39%. As September progresses, the increased chance of sunny days can bring a refreshing change after the rainier, more humid summer season, making it a potentially delightful time to enjoy the region's natural beauty.
In September, Barahona, Puerto Rico enjoys about 12 hours of daylight, maintaining the same duration as July and August. As the year progresses from the long daylight of summer with 13 hours in June and July, daylight begins to taper off as autumn approaches, gradually shifting to 11 hours in October. The trend shows a consistent annual rhythm, where daylight peaks during the summer months before easing into the shorter days of fall and winter. This natural ebb and flow creates a beautiful backdrop for outdoor activities and exploration in the vibrant atmosphere of Barahona.
As September rolls into Barahona, Puerto Rico, the average wind speed gently declines to 2.1 m/s (5 mph), marking one of the calmest months of the year. This decrease follows a summer trend where winds peaked in the warmer months—July and August saw higher averages of 3.6 m/s (8 mph) and 3.2 m/s (7 mph), respectively. The transition into autumn brings a sense of tranquility, with winds softening after a season of breezy summer heat. This pattern not only enhances the region's serene coastal experience but also signals the approaching changes in climate that define the island's seasonal ebb and flow. As Barahona welcomes the September breeze, it invites residents and visitors alike to revel in its mildness, providing a perfect backdrop for leisurely activities and reflective moments along its picturesque shores.
Weather in Barahona varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Barahona, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather conditions. In September, temperatures range from a minimum of 22°C (72°F) to a maximum of 32°C (90°F), with an average of 26°C (79°F). This month is also characterized by significant rainfall, accumulating 205 mm (8.1 in) over 26 days, along with high humidity levels at 79%. In contrast, January offers a milder climate, with temperatures ranging from 15°C (59°F) to 28°C (84°F) and an average of 23°C (74°F). Precipitation is much lower in January, totaling just 38 mm (1.5 in) over 12 days, with humidity slightly less at 76%. For a detailed look at January weather, you can visit Barahona weather in January.
September weather tends to be warmer and more humid compared to February. With average temperatures reaching 26°C (79°F) and maximum highs soaring to 32°C (90°F), September is characterized by a tropical warmth. However, it also brings significant rainfall, averaging 205 mm (8.1 in) over 26 days, resulting in a humidity level of 79%. In contrast, February offers milder conditions, with average temperatures around 23°C (74°F) and maximums peaking at 29°C (85°F). This month experiences much less precipitation, totaling only 42 mm (1.7 in) across 12 days, and a slightly lower humidity of 75%. For more detailed insights, you can explore Barahona weather in February.
In comparing the weather between September and March, September tends to be warmer and significantly wetter. With average temperatures peaking at 26°C (79°F) and soaring up to a maximum of 32°C (90°F), September experiences higher humidity at 79% and considerable precipitation of 205 mm (8.1 in) over 26 days. In contrast, March has milder temperatures, with an average of 23°C (74°F) and maximums reaching 30°C (86°F), but it brings only 88 mm (3.4 in) of rain across 16 days, resulting in lower humidity at 74%. For a more detailed look at March weather, you can refer to Barahona weather in March.
September and April exhibit distinct weather patterns, reflecting the transition between the end of summer and the onset of spring. In September, temperatures range from a minimum of 22°C (72°F) to a maximum of 32°C (90°F), with an average temperature of 26°C (79°F). This month is marked by significant rainfall, totaling 205 mm (8.1 in) over 26 days, and a humidity level of 79%. In contrast, April presents milder conditions, with temperatures ranging from 18°C (65°F) to 30°C (86°F) and an average of 24°C (75°F). The precipitation is significantly lower at 87 mm (3.4 in) across 18 days, accompanied by a slightly lower humidity of 75%. Overall, September tends to be hotter and wetter than April, making it a more humid and rainy period. For more specific insights, check out Barahona weather in April.
When comparing the weather in September and May, we can see some notable differences. September tends to be slightly warmer, with average temperatures ranging from a minimum of 22°C (72°F) to a maximum of 32°C (90°F), while May has a slightly lower average temperature with a minimum of 21°C (69°F) and a maximum of 31°C (89°F). Additionally, September is marked by significantly higher precipitation of 205 mm (8.1 in) over 26 days, compared to May's 104 mm (4.1 in) over 21 days. Humidity levels are also slightly elevated in September at 79%, while May maintains a lower humidity level of 75%. For more details on the weather in May, you can check Barahona weather in May.
In comparing the weather between September and June, we see some notable differences. September tends to be slightly warmer, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 32°C (90°F), while June has a slightly cooler range of 21°C (71°F) to a maximum of 31°C (88°F). Both months share an average temperature of 26°C (79°F). However, September experiences significantly higher rainfall, with 205 mm (8.1 in) over 26 days compared to June's 96 mm (3.8 in) over 18 days. Additionally, humidity levels are slightly higher in September at 79%, compared to June's 77%. For a closer look at the specifics, you can check out Barahona weather in June.
When comparing September and July weather patterns, both months experience similar temperature ranges, with minimums around 22°C (71-22°F), average temperatures of 26°C (79-80°F), and maximums reaching up to 32°C (89-90°F). However, September stands out with significantly higher precipitation, receiving 205 mm (8.1 in) over 26 days, compared to July's 104 mm (4.1 in) over 20 days. Humidity levels are also quite comparable, with September at 79% and July slightly higher at 80%. This makes July a drier month overall, making it more appealing for outdoor activities. For more specific insights, check out Barahona weather in July.
In comparing the weather conditions of September and August, both months feature similar temperature ranges, with minimums at 22°C (72°F), averages around 26°C (79°F to 80°F), and maximums reaching 32°C (90°F). However, September experiences significantly higher precipitation, with 205 mm (8.1 in) over 26 days, compared to August's 111 mm (4.4 in) over 20 days. Humidity levels are also slightly lower in September at 79%, while August records a humidity of 80%. For a closer look at August's weather specifics, visit Barahona weather in August.
In September, the weather is characterized by warmer temperatures, with a minimum of 22°C (72°F) and an average of 26°C (79°F), peaking at a high of 32°C (90°F). The month also experiences significant rainfall, totaling 205 mm (8.1 in) over 26 days, contributing to a high humidity level of 79%. In contrast, October sees a slight dip in temperature, with a minimum of 21°C (70°F) and an average of 25°C (78°F), while still reaching a maximum of 32°C (89°F). Precipitation decreases to 171 mm (6.7 in) across 25 days, and humidity remains relatively stable at 78%. For more detailed information, check out Barahona weather in October.
In September, temperatures in Barahona are warmer, with a minimum of 22°C (72°F) and an average of 26°C (79°F), peaking at a maximum of 32°C (90°F). The month also sees considerable rainfall, with 205 mm (8.1 in) of precipitation over 26 days and a humidity level of 79%. In contrast, November experiences slightly cooler temperatures, with a minimum of 19°C (67°F) and an average of 25°C (77°F), reaching a maximum of 30°C (87°F). The precipitation is notably less, at 116 mm (4.6 in) over 18 days, with a similar humidity level of 78%. For more details, visit Barahona weather in November.
In September, the weather tends to be warmer and wetter, with average temperatures around 26°C (79°F) and high humidity levels of 79%. This month experiences significant rainfall, totaling 205 mm (8.1 in) over 26 days, making it one of the wetter months of the year. In contrast, December sees cooler temperatures, with an average of 24°C (75°F), and is considerably drier, recording just 39 mm (1.5 in) of precipitation over 13 days. The humidity in December is slightly lower at 76%, resulting in a more comfortable climate overall. For those interested in the specifics of December weather conditions, more details can be found at Barahona weather in December.
As September unfolds in Barahona, the weather showcases a unique character distinct from other months. With warm maximum temperatures hovering around 32°C, the days are undeniably sultry, complemented by an average that maintains a pleasant 26°C. However, this month also brings increased humidity, reaching around 79%, and a notable surge in rainfall, with over 205 mm of precipitation spread across 26 days. This combination transforms the landscape, offering lush greenery but also necessitating preparations for sudden showers. For those curious about how Barahona's weather changes throughout the year, insights can be explored at Barahona Climate.