Last updated: August 21, 2025
In September, San Pedro de Macoris experiences a tropical climate characterized by warm temperatures and substantial humidity. With a maximum temperature reaching 32°C (90°F) and an average of 28°C (82°F), the month remains comfortably warm. However, nighttime lows can drop to around 25°C (76°F). This period also brings significant precipitation, totaling approximately 126 mm (5.0 in) over 20 days of rain, contributing to the region's lush greenery. The 80% humidity further enhances the tropical feel, making September in San Pedro de Macoris a vibrant, though occasionally wet, experience.
In September, San Pedro de Macoris experiences warm and inviting temperatures that continue the trend seen in recent months. With a minimum of 25°C (76°F) and soaring to a maximum of 32°C (90°F), the average temperature settles comfortably at 28°C (82°F), mirroring the heat of August. This month signals a slight increase in the nighttime lows, nudging up by a degree, while daytime highs remain consistent with the peak summer temperatures. As the island transitions into fall, the warmth wraps around visitors and locals alike, creating a tropical atmosphere perfect for enjoying the sun-soaked days and balmy evenings. Overall, September balances warmth and comfort, inviting everyone to bask in the lush beauty of the Dominican Republic.
In September, San Pedro de Macorís experiences a significant uptick in precipitation, with an impressive 126 mm (5.0 in) of rain falling over approximately 20 days. This marked increase continues the trend of rising rainfall that peaks during the late summer months, following the summer monsoon pattern that sees August already delivering 97 mm (3.8 in). The rainfall in September not only underscores the region’s transition into the wetter part of the year but also highlights its vulnerability to prolonged downpours that can influence daily life. As the rainy season progresses into October, the precipitation does slightly decrease to 110 mm (4.3 in) while still maintaining a high frequency of rainy days, indicating that the atmosphere remains ripe for storms and moisture. This persistent pattern of rainfall facilitates the lush landscapes characteristic of the Dominican Republic, while also shaping daily routines for its residents.
In September, San Pedro de Macoris experiences a peak in humidity, maintaining a steady 80% that aligns with the heightened moisture levels characteristic of late summer. This trend follows August, when humidity also reached 80%, revealing a consistent pattern of high humidity as the region transitions into the fall. A closer look at the monthly averages shows that humidity levels in San Pedro have gradually increased from a low of 71% in March to this summer high, with notable increases in the more sultry months of July and August. As the year progresses into October, the humidity begins to taper off slightly to 79%, signaling the approach of the drier season. Overall, September stands as a testament to the tropical climate's influence, with its lush atmosphere and warm temperatures creating a characteristic feel of the Caribbean.
As summer transitions into fall, September in San Pedro de Macoris maintains its position as a month of intense sunlight, featuring a UV Index of 13—consistent with the extreme levels seen since July. This means that residents and visitors should be vigilant, with a recommended burn time of just 10 minutes without proper protection. Throughout these peak months, notably from February to September, the UV Index has consistently reached extreme levels, emphasizing the need for sun safety. As October approaches, the index slightly drops to 11, signaling a subtle shift but reminding us that sun precautions should still guide daily activities. For more detailed information on the UV index variability throughout the year, check the San Pedro de Macoris UV Index.
UV Risk Categories
September in San Pedro de Macoris, Dominican Republic, continues the trend of abundant sunshine, boasting 313 hours of bright daylight. While this marks a slight dip from the sun-drenched months of mid-summer, it still benefits from a generous spread of sunshine compared to the rest of the year. Following July's peak at 351 hours and August's vibrant days with 341 hours, September's warm hues remain inviting, heralding the transition into the cooler months. Overall, the early fall maintains a pleasing balance of sunny days, keeping the spirit of summer alive just a little longer before the sun begins to slip away into autumn.
In September, San Pedro de Macoris enjoys a 51% chance of sunny weather, maintaining a balance between the wetness of summer and the drier months that follow. This likelihood is similar to the sunny prospects of January and July, reflecting a transitional period as the region shifts from the humidity of summer towards cooler months. While the sunshine percentage drops significantly in June and August, September offers a pleasant mix of sun and clouds, making it an appealing time for outdoor activities before the arrival of more consistently sunny days in November and December. Thus, for those looking to soak up the sun while enjoying a break from the intense summer heat, September presents a promising window in the Dominican Republic.
In San Pedro de Macoris, September sees a delightful 12 hours of daylight, maintaining the same luminous stretch as August. This marks the tail end of a consistent bright phase, where longer days peaked at 13 hours during the summer months of May, June, and July. As the year transitions into autumn, daylight gradually declines, with October anticipating a return to 11 hours. This pattern showcases the region's rhythmic dance with daylight, offering an abundance of sunshine that shifts steadily, complementing the vibrant Caribbean lifestyle.
In September, San Pedro de Macoris experiences a notable decline in wind speed, averaging only 3.1 m/s (7 mph), which marks the season's lowest point and sets the stage for a calmer atmosphere. This reduction follows a relatively steady breeze in the summer months, where speeds hovered around 4.1 to 4.4 m/s (9 to 10 mph). As the summer heat fades, September's gentle winds create a tranquil environment, enticing locals and visitors alike to enjoy the enchanting coastal beauty. However, as the year progresses into October and November, wind speeds gradually recover, hinting at the dynamic shifts that characterize the region's climate throughout the year.
Weather in San Pedro de Macoris varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Pedro de Macoris, focusing on differences in temperature, rainfall, humidity, and UV levels.
September weather is characterized by warmer temperatures, with a minimum of 25°C (76°F) and an average of 28°C (82°F), reaching a maximum of 32°C (90°F). This month also experiences significant rainfall, averaging 126 mm (5.0 in) over about 20 days, coupled with high humidity levels at 80%. In contrast, January brings milder conditions, with a minimum temperature of 20°C (68°F), an average of 25°C (77°F), and a maximum of 29°C (85°F). Rainfall is considerably lower, totaling just 24 mm (1.0 in) over approximately 7 days, and humidity decreases to 74%. For more details on the weather in January, you can visit San Pedro de Macoris weather in January.
September and February weather in San Pedro de Macoris exhibit notable contrasts. September tends to be warmer, with average temperatures reaching around 28°C (82°F) and highs peaking at 32°C (90°F), while February has cooler averages of 25°C (77°F) and maximums of 29°C (85°F). Additionally, September experiences significantly higher precipitation, with a total of 126 mm (5.0 in) over 20 days, compared to just 26 mm (1.0 in) across 9 days in February. Humidity levels are also higher in September at 80%, compared to February's 73%, making the former feel more sultry. For those interested in exploring the specifics of February weather, more details can be found here: San Pedro de Macoris weather in February.
When comparing the weather in September and March, September is notably warmer and wetter. In September, temperatures range from a minimum of 25°C (76°F) to a maximum of 32°C (90°F), with an average of 28°C (82°F). This month also sees significant rainfall, with 126 mm (5.0 in) of precipitation spread over 20 days and high humidity at 80%. In contrast, March offers milder temperatures, with a minimum of 20°C (69°F) and a maximum of 29°C (85°F), averaged at 25°C (77°F). The precipitation drops to 38 mm (1.5 in) over just 9 days, and the humidity is lower at 71%. For more detailed information, you can check San Pedro de Macoris weather in March.
When comparing the weather in September and April, September tends to be warmer and wetter. September boasts minimum temperatures around 25°C (76°F) and an average high of 32°C (90°F), with a significant amount of rainfall totaling 126 mm (5.0 in) over approximately 20 days. In contrast, April features milder temperatures, with a minimum of 21°C (71°F) and an average maximum of 30°C (86°F), accompanied by considerably lower precipitation of 41 mm (1.6 in) spread across just 9 days. Additionally, April has a lower humidity level at 72% compared to the 80% observed in September. For more detailed insights, you can check the San Pedro de Macoris weather in April.
When comparing the weather in September and May, September tends to be warmer and more humid. In September, average temperatures range from a minimum of 25°C (76°F) to a maximum of 32°C (90°F), with an average of 28°C (82°F). It also sees more precipitation, with 126 mm (5.0 in) falling over approximately 20 days, leading to a high humidity level of 80%. In contrast, May features slightly cooler temperatures, with a range from 23°C (73°F) to 30°C (87°F) and an average of 27°C (80°F). Additionally, May experiences less rainfall, totaling 70 mm (2.8 in) over about 15 days and with lower humidity at 72%. For more detailed insights, you can check San Pedro de Macoris weather in May.
September and June offer warm temperatures, but September is slightly warmer with average highs reaching up to 32°C (90°F), compared to June's maximum of 31°C (88°F). Both months experience high humidity, though September has a higher average at 80%, while June's humidity levels are around 73%. Rainfall is significantly more prevalent in September, with 126 mm (5.0 in) over approximately 20 days, compared to June's 55 mm (2.2 in) over 16 days. For more information about June's weather, you can visit San Pedro de Macoris weather in June.
When comparing the weather in September and July, both months feature similar average temperatures, with July having a minimum of 24°C (76°F) and a maximum of 32°C (90°F), while in September, the range is slightly higher, with a minimum of 25°C (76°F) and the same maximum. However, September sees increased precipitation, with 126 mm (5.0 in) over 20 days compared to July's 82 mm (3.2 in) over 16 days. Additionally, September has a higher humidity level at 80% compared to July's 78%, making the latter month slightly more comfortable. For a more detailed look at July's conditions, you can check San Pedro de Macoris weather in July.
In comparing the weather of September and August, both months exhibit similar temperature patterns, with average highs reaching 32°C (90°F) and lows around 25°C (76°F). However, September experiences increased precipitation, with 126 mm (5.0 in) recorded over 20 days, compared to August's 97 mm (3.8 in) over 16 days. Interestingly, humidity remains consistent at 80% for both months. For more detailed insights, you can check out San Pedro de Macoris weather in August.
In September, the weather in San Pedro de Macorís is characterized by slightly warmer temperatures, with a minimum of 25°C (76°F) and an average of 28°C (82°F), peaking at a maximum of 32°C (90°F). The month receives substantial rainfall, totaling 126 mm (5.0 in) over approximately 20 days, combined with high humidity levels averaging around 80%.
In contrast, October sees a slight dip in temperatures, with a minimum of 24°C (75°F) and an average of 27°C (81°F), while the maximum reaches 31°C (88°F). Precipitation decreases to 110 mm (4.3 in) over 18 days, and humidity levels remain similar at 79%. For further details, you can explore San Pedro de Macoris weather in October.
In September, the weather is typically warmer with average temperatures around 28°C (82°F) and highs reaching up to 32°C (90°F), accompanied by high humidity at 80%. During this month, there is considerable rainfall, with about 126 mm (5.0 in) of precipitation occurring over 20 days. In contrast, November tends to be slightly cooler, with average temperatures dropping to 26°C (80°F) and maximums reaching 31°C (88°F). Rainfall also decreases to 115 mm (4.5 in) over 15 days, and humidity levels are marginally lower at 79%. For more detailed information, you can check San Pedro de Macoris weather in November.
In September, the weather tends to be warmer and more humid, with temperatures ranging from a minimum of 25°C (76°F) to a maximum of 32°C (90°F), alongside an average of 28°C (82°F). The month also experiences significant rainfall, totaling 126 mm (5.0 in) over 20 days, contributing to a high humidity level of 80%. In contrast, December sees milder temperatures, with a minimum of 22°C (72°F) and a maximum of 30°C (86°F), averaging 26°C (79°F). Rainfall decreases sharply to just 33 mm (1.3 in) over 10 days, and humidity slightly drops to 77%. For a more detailed overview, you can check out San Pedro de Macoris weather in December.
September in San Pedro de Macoris marks a distinct shift in weather patterns, characterized by warmer temperatures and elevated humidity levels. With average highs reaching 28°C and frequent precipitation over 20 days, this month tends to be wetter than the drier summer months. The blend of warmth and moisture creates a lush, vibrant environment that distinguishes September from the rest of the year. As you prepare for a visit, it's important to embrace the tropical atmosphere that defines this time, making it a unique experience to explore the beauty of the region. For more detailed insights, check out San Pedro de Macoris Climate.