Last updated: August 31, 2025
In September, Quebradillas, Puerto Rico, experiences a tropical climate characterized by warm temperatures and high humidity levels averaging 79%. Daily maximums reach around 31°C (88°F), while the average temperature hovers at a comfortable 27°C (81°F) and minimums drop to 25°C (77°F). This month is also notable for its significant precipitation, with a total of 188 mm (7.4 in) falling over 23 days, making it one of the wetter periods of the year. Visitors can expect a mix of sunny spells and rainy afternoons as the lush landscape thrives under the tropical rains.
In September, Quebradillas, Puerto Rico, experiences a delightful warmth as summer gradually transitions into fall. The minimum temperature settles at around 25°C (77°F), providing a comfortable base, while the average hovers around 27°C (81°F). It's a month where the maximum temperature can reach up to 31°C (88°F), perfect for beachgoers and outdoor enthusiasts. As September advances, the temperatures remain consistent with the trends from August, showcasing a pattern of stable warmth that makes it ideal for enjoying the vibrant natural beauty and cultural offerings of the region. Overall, the weather in September invites locals and tourists alike to revel in the tropical paradise that is Quebradillas.
In September, Quebradillas, Puerto Rico, experiences a significant spike in precipitation, with an impressive 188 mm (7.4 in) of rain over the month. This torrential downpour marks a noticeable peak in the annual rainfall pattern, substantially higher than the previous months, which typically range from 34 mm to 97 mm. Coinciding with this increase, the number of rainy days also rises to 23, highlighting September as the wettest month of the year. Such patterns not only reflect the onset of the island's rainy season but also indicate the potential for lush, vibrant landscapes, as the abundant moisture supports the region's diverse flora. This trend underscores the importance of September as a time of renewal, despite the challenges that come with increased rainfall.
As September unfolds in Quebradillas, Puerto Rico, humidity levels stabilize at 79%, reflecting a slight decrease from the peak months of July and August, which both recorded a higher 80%. This gradual shift suggests the onset of a transition towards drier conditions, as the humidity dips slightly from summer's peak. Notably, the months preceding September show a consistent range, with humidity hovering around the 75-80% mark from January through August, signifying the tropical climate's characteristic moisture. As October approaches, the humidity is forecasted to maintain a similar level at 78%, indicating that while the sultry summer reminiscences linger, the change of seasons gently nudges the air toward a more comfortable balance.
In September, Quebradillas, Puerto Rico, continues to experience a consistently high UV Index of 13, categorized as extreme. This level of ultraviolet intensity, which demands careful attention as you plan your outdoor activities, means that even brief exposure can lead to sunburn in as little as 10 minutes. As the summer months roll into fall, the UV Index remains elevated, mirroring the trends seen throughout the peak season from May through August. It's essential to stay protected under the sun, as these readings indicate a strong need for sunscreen and protective clothing. For detailed insights into the UV Index trends throughout the year, check out Quebradillas UV Index.
UV Risk Categories
September in Quebradillas, Puerto Rico, offers a delightful blend of sunshine, with 316 hours of bright skies encouraging outdoor adventures and beach relaxation. As the peak of summer transitions into fall, this month showcases a slight dip in sunlight compared to the brighter months of May and July, which both boast a commanding 361 hours. However, September remains sunnier than the months that follow, such as October and November, maintaining a warm and inviting atmosphere. With an average of over 300 hours of sunshine, it's an ideal time for visitors to bask in the beauty of this Caribbean paradise before the cooler months set in. Embrace the lingering warmth and vibrant coastal life as you enjoy the golden hues of September in this enchanting locale.
In September, Quebradillas, Puerto Rico experiences a 53% chance of sunny weather, indicating a slightly above-average likelihood for sunshine this month. While the preceding summer months of June and July show a dip in sunny days, September sees a modest rebound in sunshine potential. This trend continues into the autumn months, as October holds steady at 50%, and the percentages gradually rise again towards the year's end with November and December showcasing 64% and 69%, respectively. Thus, if you’re planning a visit in September, you can expect a pleasant mix of sun and occasional clouds, aligning well with the overall trend of increasing sunshine as the year draws to a close.
In September, daylight in Quebradillas, Puerto Rico, maintains a pleasant duration of 12 hours, mirroring the sun-filled months of March, April, May, and August. This balance of light signals the gradual transition from the longer days of summer, where June and July take the lead with 13 hours of daylight, back towards the shorter hours of October. As the days begin to shorten, September stands out as a month where warmth and brightness still linger, offering the perfect setting for outdoor activities before the daylight diminishes further in the fall. This continuity of 12 hours highlights a seasonal rhythm that invites both relaxation and exploration under the Caribbean sun.
In September, the winds in Quebradillas, Puerto Rico reach a gentle hush, with an average wind speed of 3.7 m/s (8 mph), marking a notable dip from the summer months. This seasonal shift reflects a broader trend, as the wind speeds gradually decrease from the more breezy summer, which saw higher averages of around 5 m/s. September’s calmer winds signal the transition into the cooler months ahead, creating a serene atmosphere ideal for relaxation and reflection. As the year progresses toward fall, it’s clear that the winds of Quebradillas have a rhythmic ebb and flow, offering a distinctive charm unique to each season.
Weather in Quebradillas varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Quebradillas, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between September and January, September tends to be hotter and much wetter. With average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 31°C (88°F), it is warmer than January, which has an average range from 20°C (69°F) to a maximum of 29°C (84°F). September also sees significantly higher precipitation, with 188 mm (7.4 in) over 23 days, compared to January's 34 mm (1.3 in) over just 11 days. Despite the heat, both months display similar humidity levels, with September at 79% and January slightly lower at 76%. For more detailed insights, check out Quebradillas weather in January.
September and February present distinct weather profiles, highlighting the transition between the wet season and the drier months. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 31°C (88°F), with an average of 27°C (81°F). This month is marked by high humidity at 79% and substantial rainfall, accumulating 188 mm (7.4 in) over 23 days. In contrast, February offers a cooler climate, with temperatures ranging from a minimum of 21°C (69°F) to a maximum of 30°C (86°F), averaging at 25°C (76°F). The precipitation is significantly lower at 39 mm (1.5 in) across 13 days, and humidity eases slightly to 75%. For more details on February weather, you can check Quebradillas weather in February.
In September, the weather is quite warm, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 31°C (88°F) and an average of 27°C (81°F). This month also sees significant rainfall, with 188 mm (7.4 in) of precipitation spread over 23 days and humidity levels around 79%. In contrast, March enjoys slightly cooler temperatures, with a minimum of 21°C (70°F), an average of 25°C (76°F), and a maximum of 29°C (84°F). Additionally, March experiences less rainfall, totaling 72 mm (2.8 in) over 17 days, and a bit lower humidity at 74%. For more specific details on March weather, you can check Quebradillas weather in March.
When comparing the weather in September and April, September tends to be hotter and more humid. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 31°C (88°F), with an average of 27°C (81°F). The month also experiences significant rainfall, totaling 188 mm (7.4 in) over 23 days, contributing to a humidity level of 79%. In contrast, April is slightly cooler, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 30°C (86°F), and an average of 25°C (78°F). Precipitation in April is considerably lower, at 66 mm (2.6 in) over 14 days, and the humidity is a touch milder at 75%. For more details, you can check Quebradillas weather in April.
In comparing the weather of September and May, both months exhibit warm temperatures, with September having slightly higher averages. September sees a minimum temperature of 25°C (77°F), averaging 27°C (81°F), and a maximum of 31°C (88°F), while May has a slightly cooler minimum of 23°C (74°F) and an average of 26°C (79°F), also reaching up to 31°C (88°F). However, September is characterized by significantly higher precipitation, with 188 mm (7.4 in) over 23 days, compared to May's 97 mm (3.8 in) over 19 days. Humidity levels are also elevated in September at 79%, compared to 75% in May. For a more detailed look at May's weather, you can visit Quebradillas weather in May.
In comparing the weather of September and June, we find that both months feature similar temperature ranges, with minimums around 24-25°C (76-77°F) and maximums peaking at 31°C (88°F). However, September tends to be wetter, experiencing significantly higher precipitation of 188 mm (7.4 in) over 23 days compared to June's 85 mm (3.3 in) spread across 17 days. Additionally, humidity levels are slightly higher in September at 79%, compared to 77% in June. For a closer look at the specific conditions during June, you can refer to Quebradillas weather in June.
When comparing the weather in September and July, both months exhibit similar temperature ranges, with average highs reaching 31°C (88°F). However, September tends to be wetter, receiving 188 mm (7.4 in) of precipitation over 23 days, compared to July's 91 mm (3.6 in) and 18 days of rain. Additionally, while July has a slightly lower humidity level at 80%, September maintains a high humidity of 79%. For a closer look at July's weather patterns, you can visit Quebradillas weather in July.
In comparing the weather between August and September, both months showcase warm temperatures, with average highs reaching 32°C (89°F) in August and a slightly lower maximum of 31°C (88°F) in September. While September sees a minimum temperature of 25°C (77°F), August starts off a bit warmer at 24°C (76°F). Notably, September experiences significantly higher precipitation, with 188 mm (7.4 in) of rain over 23 days, compared to August's 97 mm (3.8 in) over 20 days. Humidity levels remain fairly stable, hovering around 79% in September and 80% in August. For more detailed weather insights, visit Quebradillas weather in August.
In September, the weather in Quebradillas features a minimum temperature of 25°C (77°F) and an average of 27°C (81°F), reaching a maximum of 31°C (88°F). This month experiences significant rainfall, with 188 mm (7.4 in) over 23 days and humidity levels at 79%. In contrast, October sees slightly cooler temperatures with a minimum of 24°C (76°F), maintaining the same average and maximum temperatures as September. Rainfall decreases to 127 mm (5.0 in) over 21 days, coupled with a humidity level of 78%. Overall, October presents somewhat drier conditions while maintaining consistent temperatures. For more details, check out Quebradillas weather in October.
September and November showcase a gradual shift in weather patterns. In September, temperatures tend to be slightly warmer, with minimums around 25°C (77°F) and maximums reaching 31°C (88°F), while November cools down just a bit, with minimums at 23°C (74°F) and maximums peaking at 30°C (85°F). Precipitation is more abundant in September, totaling 188 mm (7.4 in) over 23 days, compared to November, which experiences just 99 mm (3.9 in) of rain across 19 days. Humidity levels remain similar, with September at 79% and November at 78%. For more detailed information about November weather, visit Quebradillas weather in November.
In September, the weather tends to be warmer and more humid, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 31°C (88°F), and an average of 27°C (81°F). This month also sees significant rainfall, with 188 mm (7.4 in) of precipitation spread over 23 days, resulting in a humidity level of around 79%.
In contrast, December brings slightly cooler temperatures, with a minimum of 23°C (73°F) and a maximum of 30°C (86°F), averaging 25°C (78°F). Precipitation decreases considerably to 43 mm (1.7 in) over 15 days, and humidity falls to 76%. For more detailed information about December conditions, you can refer to Quebradillas weather in December.
As September rolls into Quebradillas, the weather takes on a distinctive character marked by warm temperatures and a noticeable increase in humidity. With average highs reaching 31°C (88°F), this month tends to feel more humid compared to the drier conditions of earlier months. Additionally, the rainfall becomes more frequent, with precipitation occurring on 23 days, contributing to a total of 188 mm (7.4 in), making it one of the wetter months of the year. This blend of warmth and moisture sets September apart from the drier summer months, creating a vibrant yet humid atmosphere. For more details on weather patterns throughout the year, check out Quebradillas Climate.