Last updated: August 21, 2025
September in La Romana, Dominican Republic offers a warm and tropical atmosphere, with temperatures peaking at 34°C (94°F) and settling around an average of 28°C (82°F). The nights provide a comfortable retreat with lows reaching 24°C (75°F). Travelers should prepare for humid conditions, as humidity levels hover around 80%. Rainfall is quite frequent this month, with 102 mm (4.0 in) of precipitation spread across approximately 19 days, contributing to the lush, vibrant scenery of this Caribbean paradise.
In September, La Romana, Dominican Republic, continues to embrace the warmth of summer, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 34°C (94°F). The average temperature hovers around a comfortable 28°C (82°F), reflecting a consistent trend seen throughout the peak summer months. This slight increase compared to earlier months reinforces the tropical allure of the region, making it an ideal destination for sun-seekers. As the heat lingers, the evenings remain balmy, inviting leisurely nights under the stars, and serving as a perfect prelude to the cooler, refreshing months ahead. Overall, September in La Romana is marked by a vibrant blend of warmth and tropical charm, ensuring both adventure and relaxation.
In September, La Romana experiences a notable surge in precipitation, receiving 102 mm (4.0 in) of rain over 19 days. This marks the peak of the rainy season, as the region transitions from the drier months of summer. The rainfall in September not only surpasses that of previous months but also prepares the landscape for the lush greenery that follows. This trend reflects a pattern where late summer and early fall bring about increased moisture, paving the way for October, which sees similar precipitation levels. The consistent rainfall during this time contributes significantly to the local climate, fostering vegetation growth and influencing the seasonal rhythms of the area.
As summer transitions into fall, September in La Romana, Dominican Republic, maintains a notable humidity level of 80%, mirroring the sticky conditions of August. This peak in humidity signals a continuation of the tropical climate that prevails throughout the region. Observing the trends over the year, humidity consistently hovers in the high seventies to low eighties, peaking during the warmer months from July to September and slightly tapering off into the fall. Such sustained humidity levels contribute to the lush, vibrant landscape, making La Romana a tropical paradise, although visitors should be prepared for the stickiness that accompanies these balmy conditions.
In September, La Romana experiences a consistent UV Index of 13, placing it in the extreme exposure category, with a burn time of just 10 minutes. This maintains the trend established during the peak summer months, where the UV Index often reaches the same level. The extreme readings from March through September highlight the importance of sun safety during this time, as visitors should take precautions, such as using sunscreen and seeking shade to protect against skin damage. As the year progresses, a gradual decline in UV intensity is expected, but September remains firmly in the high-risk zone. For more detailed information, explore the La Romana UV Index.
UV Risk Categories
As September rolls in, La Romana basks in an impressive 313 hours of sunshine, a delightful continuation of the summer glow that has graced the region since June. Following the peak of 351 hours in July and a slightly diminished yet still vibrant 341 hours in August, this month reflects a subtle transition into fall while still holding onto the warmth of summer. The trend indicates a gradual decline in sunshine hours as the year progresses, with averages dropping from a high of 347 hours in April to 281 hours by November. Thus, September serves as a beautiful bridge, offering visitors a splendid mix of sun-soaked days and vibrant Caribbean charm, perfect for enjoying the stunning coastline and rich local culture before the year winds down.
In La Romana, Dominican Republic, September presents a 50% chance of sunny weather, aligning with the mid-level sunshine typically found this time of year. As summer transitions into fall, the likelihood of clear skies maintains a steady average, mirroring January's potential for sunshine. While June and August show lower probabilities of sun, the months surrounding September—specifically October and November—witness a gradual increase, suggesting a promising outlook for outdoor activities as the weeks progress. Overall, September's sunshine potential is quite balanced, making it a reasonable choice for travelers seeking enjoyable weather while avoiding the peak tourist season.
In La Romana, Dominican Republic, the rhythm of daylight shifts subtly throughout the year, creating a captivating seasonal narrative. As September arrives, the city enjoys 12 hours of daylight, a level of brightness that reflects the summer's lingering warmth and vibrancy. The transition from June and July—when daylight peaks at 13 hours—to this month indicates a gradual tapering off as autumn approaches. After a period of long, sunlit days, the daylight duration stabilizes at 12 hours through September and into August, offering a balanced experience of day and night. As the year winds down, daylight returns to 11 hours in October, reinforcing the sense of change that characterizes this tropical paradise as it embraces the cooler months ahead.
As September arrives in La Romana, Dominican Republic, the gentle touch of the wind becomes even more notable, with an average speed of only 2.4 m/s (5 mph). This dip marks the calmest period of the year, a pleasant shift from the slightly higher breezes typical in summer months. The tranquil winds, which have been around 3.5 m/s (8 mph) during the height of summer, now beckon a sense of serenity that complements the region's lush landscape. As October mirrors September’s breeziness, the soft winds create the perfect backdrop for relaxation, inviting visitors and locals alike to embrace the slower pace of life during this beautiful transition into autumn.
Weather in La Romana varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in La Romana, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January weather presents a striking contrast. In September, temperatures are warmer, with a minimum of 24°C (75°F), an average of 28°C (82°F), and a maximum of 34°C (94°F). This month also experiences a significant amount of rainfall, totaling 102 mm (4.0 in) over 19 days, accompanied by high humidity at 80%. In contrast, January offers milder conditions, with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 31°C (88°F) and an average of 25°C (77°F). Additionally, precipitation is much lower in January at just 20 mm (0.8 in) over 5 days, resulting in lower humidity levels of 74%. For more details, check out La Romana weather in January.
September and February present contrasting weather conditions. In September, temperatures are warmer, with a minimum of 24°C (75°F) and an average of 28°C (82°F), reaching a maximum of 34°C (94°F). However, this month also sees significant rainfall, with 102 mm (4.0 in) over 19 days and humidity levels at 80%. In contrast, February is milder, featuring lower temperatures with a minimum of 19°C (67°F), an average of 25°C (78°F), and a maximum of 31°C (89°F). Rainfall is substantially reduced, totaling only 22 mm (0.9 in) over 7 days, and relative humidity drops to 73%. For a detailed view of February weather specifics, visit La Romana weather in February.
In September, the weather features warmer temperatures, with a minimum of 24°C (75°F) and an average of 28°C (82°F), peaking at 34°C (94°F). This month also experiences considerable precipitation, with 102 mm (4.0 in) falling over 19 days and a high humidity level of 80%. In contrast, March offers milder conditions, characterized by a minimum temperature of 18°C (65°F) and an average of 25°C (78°F), reaching a maximum of 32°C (89°F). Rainfall is less frequent and lighter in March, totaling 37 mm (1.4 in) over just 10 days, along with a lower humidity of 71%. For a more detailed analysis of March weather, you can check La Romana weather in March.
In September, the weather tends to be warmer and more humid compared to April, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 34°C (94°F). This month is also characterized by significant rainfall, with 102 mm (4.0 in) of precipitation spread over 19 days, resulting in a high humidity level of 80%. In contrast, April offers slightly cooler temperatures, with a minimum of 20°C (68°F) and a maximum of 33°C (91°F). The rainfall in April is considerably lower, averaging just 37 mm (1.5 in) over 9 days, along with a reduced humidity level of 72%. For a detailed overview of April weather, you can visit La Romana weather in April.
When comparing the weather in September and May, both months exhibit warm temperatures, but with some notable differences. September tends to be slightly warmer with average temperatures reaching 28°C (82°F) and maximums of 34°C (94°F), while May's averages are just a touch cooler at 27°C (81°F) and max temperatures of 33°C (92°F). Additionally, September is characterized by higher humidity levels at 80% compared to May's 72%. Precipitation is also significantly more frequent in September, with 102 mm (4.0 in) over 19 days, whereas May sees less rainfall at 62 mm (2.4 in) across just 13 days. For more details on May's weather, you can visit La Romana weather in May.
In comparing the weather of September and June, both months exhibit similar average temperatures, hovering around 28°C (82°F), but September tends to be slightly warmer during the nighttime with a minimum temperature of 24°C (75°F) compared to June’s 22°C (72°F). Humidity levels are noticeably higher in September at 80%, while June enjoys a more comfortable 73%. Precipitation also varies significantly; September experiences substantially more rainfall with 102 mm (4.0 in) over 19 days, in contrast to June's 43 mm (1.7 in) and 11 days of rain. For a detailed look at June weather, you can visit La Romana weather in June.
In comparing the weather between September and July, we see similarities in their temperature ranges, with both months featuring minimum temperatures around 23-24°C (73-75°F) and maximum temperatures peaking at 34°C (94°F). However, September tends to be slightly wetter, receiving 102 mm (4.0 in) of precipitation over 19 days, compared to July's 64 mm (2.5 in) over just 12 days. Additionally, September has a slightly higher humidity level at 80%, compared to July's 78%. For those interested in more details about July's climate, visit La Romana weather in July.
In comparing the weather of September and August, it is evident that both months share similar temperature ranges, with minimums of 24°C (75°F), average temperatures around 28°C (82°F in September and 83°F in August), and maximums reaching 34°C (94°F). However, September experiences higher precipitation, totaling 102 mm (4.0 in) over 19 days, contrasted with August's 71 mm (2.8 in) over 14 days. Both months maintain a humidity level of 80%, contributing to the warm and often sultry conditions typical for this time of year. For more details, you can check La Romana weather in August.
September and October exhibit similar weather patterns, with only slight variations. In September, temperatures range from a minimum of 24°C (75°F) to a maximum of 34°C (94°F), with an average temperature of 28°C (82°F). The month experiences high humidity levels at 80% and sees around 102 mm (4.0 in) of precipitation over 19 days. In contrast, October features a slightly lower temperature range, with a minimum of 22°C (72°F) and a maximum of 33°C (92°F), resulting in an average of 27°C (81°F). Precipitation remains comparable at 101 mm (4.0 in) but occurs over one additional day, bringing the total to 20 days of rainfall, while the humidity decreases slightly to 79%. For more details, you can check La Romana weather in October.
In comparing the weather between September and November, September is notably warmer, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 34°C (94°F) and an average of 28°C (82°F). Additionally, September experiences higher precipitation, totaling 102 mm (4.0 in) over 19 days, and humidity levels are relatively high at 80%. In contrast, November features slightly cooler temperatures, with a minimum of 21°C (70°F) and a maximum of 33°C (91°F), averaging 26°C (80°F). Rainfall is also reduced to 92 mm (3.6 in) across 13 days, and humidity hovers around 79%. For a detailed look at the weather in November, you can visit La Romana weather in November.
In September, the weather is typically warmer and more humid, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 34°C (94°F). The month also sees considerable rainfall, with about 102 mm (4.0 in) of precipitation over 19 days, resulting in a humidity level of around 80%. In contrast, December presents a more temperate climate, featuring average temperatures between 20°C (68°F) and 32°C (90°F). Rainfall significantly decreases to 30 mm (1.2 in) across just 8 days, and humidity levels drop slightly to 77%. For more details on the weather in December, you can check La Romana weather in December.
As summer transitions into fall, September in La Romana presents a unique blend of warmth and humidity, characterized by an average temperature that hovers around a comforting 28°C (82°F). Unlike the dry months that precede it, this period sees an increase in precipitation, with frequent showers gracing nearly two-thirds of the days. The humidity intensifies, creating a sultry atmosphere that sets September apart from the drier, more temperate months. Whether you're keen on experiencing the lush landscapes nourished by these rains or simply savoring the tropical warmth, September in La Romana offers a distinctive allure. For more insights on what to expect throughout the year, visit La Romana Climate.