Last updated: February 6, 2025
In September, Puerto Rico, Spain experiences pleasantly mild weather characterized by an average temperature of 22°C (73°F), with maximum highs reaching 29°C (84°F) and minimum lows around 20°C (67°F). The month boasts an impressively low precipitation amount of just 2 mm (0.1 in), with no recorded rainy days. Coupled with a humidity level of 88%, the atmosphere is comfortably tropical, making it an ideal time for visitors to enjoy outdoor activities in this stunning locale.
In September, both Puerto Rico and Spain showcase a delightful transition towards warmer temperatures. Puerto Rico experiences a gentle rise with minimums starting at 20°C (67°F) and maximums reaching 29°C (84°F), offering a cozy yet inviting tropical vibe. Spain, while also enjoying its warm days, maintains a slightly cooler edge with maximums typically hovering around the mid-20s, perfect for leisure activities. The average temperature in Puerto Rico remains consistent at 22°C (73°F), harmonizing beautifully with the vibrant culture, where sunny days encourage outdoor exploration. As summer gracefully shifts to fall, September proves to be a month where the climate beckons travelers to indulge in the unique charms of both destinations.
In September, Puerto Rico experiences an almost dry spell, with only 2 mm (0.1 in) of precipitation recorded, reflecting a significant reduction as the island transitions from the intense heat of summer. This month notably stands out as it registers no precipitation days, marking it as one of the driest periods of the year. Following a streak of months with minimal rainfall, the pattern suggests a shift away from the more humid summer conditions, leading into a season where moisture begins to re-emerge in October. This trend underscores the distinct seasonal changes in Puerto Rico, where the rainy season typically resumes after the parched summer months, bringing opportunities for revitalization in the lush landscapes.
As summer wanes, September in Puerto Rico, Spain, experiences a slight dip in humidity, averaging 88%, following the peak of 90% recorded in August. This subtle decrease marks a transition towards the milder conditions of autumn. Throughout the year, humidity levels demonstrate a clear trend of increasing from 73% in January to a high of 89% in July, reflecting the island's characteristically humid subtropical climate. After reaching their annual zenith during the hot summer months, humidity levels gradually decline into October, where it settles at 85%. This seasonal rhythm not only shapes the local weather but also influences the vibrant ecosystem and daily life of Puerto Rico.
September in Puerto Rico, Spain, experiences a remarkable UV Index of 11, categorized as extreme, which means that prolonged exposure can lead to skin burns in just 10 minutes. As the summer winds down, the UV levels remain high, mirroring the intensity seen during the peak months of May through August. This trend reflects a consistent pattern of strong sun exposure, urging residents and visitors alike to remain vigilant and protect their skin from UV damage. To learn more about maintaining safety during high UV days, check out the detailed forecasts and tips at Puerto Rico UV Index.
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As September rolls in, Puerto Rico, Spain, bids farewell to the peak summer months while still basking in significant sunshine, logging 342 hours of bright rays. This marks a subtle decline compared to the sun-drenched days of July and May, where daylight peaked at 395 hours. The trend suggests a gradual transition into the cooler autumn months, though September still offers abundant sunshine, ensuring opportunities for outdoor adventures. With overall daylight hours consistently above the 300-hour mark from January through November, this enchanting locale remains a sun-seeker's paradise, even as the seasons begin to shift.
As summer transitions into autumn, September in Puerto Rico, Spain boasts a commendable 84% chance of sunny weather, making it a delightful month for outdoor activities. The trend throughout the year reveals a remarkable peak in sunshine during the hot summer months of July and August, which record an impressive 91% and 93% respectively. This sunny disposition gradually decreases into the fall, yet September maintains a strong position compared to the earlier months of the year. With sunshine levels remaining high following the summer, visitors can expect pleasantly bright days, perfect for exploring the island's stunning landscapes and vibrant culture before the likelihood of rain begins to rise in the subsequent months.
In September, daylight in Puerto Rico, Spain, begins to wane as summer gives way to autumn, offering approximately 12 hours of sunlight each day. This marks a slight decrease from the peak of 13 hours enjoyed in the summer months of May through August. The trend throughout the year reveals a gradual ebb and flow of daylight, starting with 10 hours in January, rising steadily to 13 hours during the height of summer, and then tapering off again as the year progresses. As September arrives, the shift in daylight not only signals the changing seasons but also invites a blend of lingering warmth and the promise of cooler days ahead.
As September arrives in Puerto Rico, Spain, the gentle breeze invites a transition from the warmer summer months. Average wind speeds for this time dip to 4.2 m/s (9 mph), marking a subtle decrease from the summer peak of 6.9 m/s (15 mph) in July. Following a consistent rise in wind intensity throughout late spring and summer, September's winds reflect a calming return towards milder conditions, akin to the softer whispers of autumn. This decrease continues into October, while November and December see even lighter gusts, making September a pivotal point that gracefully bridges the vibrant summer winds with the more tranquil autumnal breezes that follow.
The weather in Puerto Rico changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Puerto Rico and find detailed weather information for every month.
In September, the weather is warm and humid, with minimum temperatures around 20°C (67°F) and average highs reaching up to 29°C (84°F), coupled with a high humidity level of 88%. This month typically sees little to no precipitation, making it ideal for outdoor activities. In contrast, January presents a cooler climate, with minimum temperatures dropping to 13°C (55°F) and average highs around 22°C (73°F). January is wetter than September, with around 15 mm (0.6 in) of rainfall spread over two days, and humidity levels are somewhat lower at 73%. For more detailed information, you can check Puerto Rico weather in January.
September brings warmer temperatures, with an average of 22°C (73°F) and maximum highs reaching 29°C (84°F), all while enjoying high humidity levels at 88%. In contrast, February experiences cooler weather, averaging 17°C (63°F) and peaking at 23°C (73°F). Additionally, February sees more precipitation, with 15 mm (0.6 in) over three days compared to September’s dry spell of 2 mm (0.1 in) and no rainy days. For more details, check out Puerto Rico weather in February.
September and March present distinct weather experiences. In September, temperatures are warmer with a minimum of 20°C (67°F) and an average of 22°C (73°F), peaking at a comfortable 29°C (84°F). The month is generally dry, with only 2 mm of precipitation and no rainy days, though the humidity remains high at 88%. In contrast, March is cooler with a minimum of 12°C (54°F) and an average of 17°C (63°F), reaching a maximum of 24°C (75°F). This month sees more rainfall, accumulating 16 mm over three days, and slightly lower humidity at 81%. For a detailed overview, you can check Puerto Rico weather in March.
In September, the weather is notably warmer, with average temperatures around 22°C (73°F) and maximum highs reaching 29°C (84°F), while April features cooler temperatures with an average of 18°C (64°F) and max highs of 26°C (79°F). September experiences virtually no precipitation, boasting an impressive 0 days of rain and high humidity at 88%. In contrast, April sees a bit more rain, with a total of 10 mm (0.4 in) over 2 days, and slightly lower humidity at 83%. Overall, September offers a drier and warmer climate compared to the more temperate and somewhat wetter conditions in April. For more detailed information, you can check Puerto Rico weather in April.
September generally enjoys warmer weather compared to May, with minimum temperatures starting at 20°C (67°F) and reaching an average of 22°C (73°F), peaking at 29°C (84°F). In contrast, May has cooler temperatures, with a minimum of 15°C (59°F) and an average of 19°C (67°F), maxing out at 26°C (80°F). While September experiences little to no precipitation, with only 2 mm (0.1 in) and no rainy days, May sees slightly more rain, totaling 6 mm (0.2 in) over two days. Humidity levels are relatively high in both months, but September is a touch more humid at 88%, compared to May's 82%. For more insights on weather during this month, check out Puerto Rico weather in May.
In comparing the weather between September and June, both months showcase warm temperatures, but September tends to be slightly warmer. In September, the minimum temperature averages around 20°C (67°F), with a peak at 29°C (84°F), while in June, the minimum is a bit cooler at 16°C (62°F) and still reaching 29°C (84°F) at its maximum.
Rainfall is minimal in both months, with just 2 mm (0.1 in) of precipitation recorded and no rainy days in either month. Humidity levels are comparable as well, with September having a slightly higher average at 88% compared to June's 85%. Overall, September offers a warmer, albeit slightly more humid atmosphere. For more details on June weather specifically, you can check Puerto Rico weather in June.
In comparing the weather of September to that of July, we see that both months feature warm temperatures, with September experiencing a minimum of 20°C (67°F) and an average temperature of 22°C (73°F), while July has a slightly lower minimum of 18°C (65°F) and the same average of 22°C (72°F). July reaches a slightly higher maximum temperature of 30°C (85°F) compared to September's 29°C (84°F). Notably, both months record minimal precipitation, with September receiving only 2 mm (0.1 in) over no rainy days, while July remains completely dry at 0 mm (0.0 in) with no rainy days as well. Humidity levels are similar, with September at 88% and July at 89%. For more details on July's weather, check out Puerto Rico weather in July.
In September, the weather remains warm with a minimum temperature of 20°C (67°F) and an average of 22°C (73°F), peaking at a maximum of 29°C (84°F). The month is characterized by minimal precipitation, recording only 2 mm (0.1 in), alongside an impressive humidity level of 88%. In contrast, August exhibits slightly warmer conditions, with a minimum temperature of 19°C (67°F) and an average of 23°C (74°F), reaching a maximum of 31°C (88°F). Notably, August records no precipitation at all, yet it has a slightly higher humidity level at 90%. For more detailed information, you can check Puerto Rico weather in August.
September weather is characterized by slightly warmer nighttime temperatures with a minimum of 20°C (67°F) and an average of 22°C (73°F), peaking at a maximum of 29°C (84°F). Additionally, September enjoys very low precipitation, with only 2 mm (0.1 in) recorded over the entire month, resulting in no rainy days and relatively high humidity at 88%.
In contrast, October sees a slight dip in minimum temperatures to 18°C (64°F) while maintaining the same average and maximum temperatures as September. However, October experiences an increase in precipitation, totaling 13 mm (0.5 in) over 2 days, and a slight decrease in humidity to 85%. For more details on October weather, you can check Puerto Rico weather in October.
In September, the weather is typically warm with temperatures ranging from a minimum of 20°C (67°F) to a maximum of 29°C (84°F) and an average of 22°C (73°F). This month experiences very little precipitation, with only 2 mm recorded over zero days, and a high humidity level of 88%. In contrast, November brings slightly cooler temperatures, with a minimum of 15°C (60°F), an average of 20°C (68°F), and a maximum of 26°C (79°F). Additionally, November sees more rainfall, totaling 12 mm over two days, and the humidity decreases to 80%. For more detailed insights, check out Puerto Rico weather in November.
In September, the weather is warm and humid, with temperatures ranging from a minimum of 20°C (67°F) to a maximum of 29°C (84°F) and an average of 22°C (73°F). The month boasts very little precipitation, with just 2 mm (0.1 in) and no rainy days, making it ideal for outdoor activities under high humidity levels of 88%.
Conversely, December sees a drop in temperatures with a minimum of 15°C (59°F) and a maximum of 24°C (75°F), averaging around 18°C (65°F). The month experiences slightly more precipitation at 7 mm (0.3 in) over two days, but the humidity is noticeably lower at 74%. For more details about the weather in December, you can check Puerto Rico weather in December.
As September unfolds in Puerto Rico, visitors can expect a delightful reprieve from the seasonal heat, characterized by pleasantly moderate temperatures and remarkably low precipitation. Unlike other months that may bring increased rainfall, September shines with its dry days, allowing for uninterrupted exploration of the island's stunning landscapes. The consistent humidity lends a tropical touch, making the warm days feel comfortable, especially as the sun sets. For those seeking to understand the nuances of Puerto Rico's climate throughout the year, this month stands out as a prime time to enjoy the island’s natural beauty. To learn more, check out Puerto Rico Climate.