Last updated: August 21, 2025
September in Santiago de Cuba offers a blend of tropical warmth and humidity, with maximum temperatures reaching around 33°C (92°F) and an average of 27°C (81°F), making it a warm escape. However, the month is marked by significant rainfall, accumulating to 119 mm (4.7 in) over approximately 18 days, often creating a vibrant, lush landscape. With humidity levels hovering around 75%, visitors can expect a sultry atmosphere, ideal for those who relish the heat of the Caribbean. This unique combination of temperature and precipitation shapes Santiago de Cuba’s September, presenting an enticing atmosphere for explorers and sun-seekers alike.
September in Santiago de Cuba welcomes a warm embrace, with minimum temperatures consistently around 23°C (74°F), making it a comfortable month for outdoor activities. As the average temperature nudges up to 27°C (81°F), the tropical vibe is palpable, perfect for enjoying the vibrant local culture. The heat peaks with maximum temperatures reaching as high as 33°C (92°F), mirroring the sizzling energy of the city. As summer transitions to fall, September maintains a delightful balance of warmth, often leading to enjoyable, sun-soaked days that invite exploration of the island's scenic beauty and rich history. This month not only holds on to the summer warmth but also hints at the gentle cooling that lies ahead, making it an ideal time for visitors to experience the charm of Santiago de Cuba.
September marks a significant shift in precipitation patterns for Santiago de Cuba, with 119 mm (4.7 in) of rain, making it one of the rainiest months of the year. The increase in rainfall is evident as the region transitions from the drier summer months, where August alone sees 91 mm (3.6 in), into the heart of the wet season. This month also experiences high precipitation days, totaling 18, which highlights the persistent showers typical for this time, further adding to the cumulative rainfall. As September unfolds, the climate showcases its characteristic blend of tropical warmth and vibrant bursts of rain, setting the stage for the wetter October that follows.
In September, Santiago de Cuba experiences a notable humidity level of 75%, making it part of a trend of slightly elevated humidity that peaks during the summer months. This increase follows a summer pattern, starting with July at 73% and August reaching its highest at 76%. As autumn approaches, September's humidity dips slightly, yet remains substantial, indicating the lingering tropical influences in the region. Following this peak, humidity levels stabilize into October and then rise again in November to 77%, showcasing the city's consistent climate and the shift into the wetter season as temperatures begin to cool. Overall, the humidity in Santiago reflects a predictable pattern, characterized by higher levels in the warmer months and a gradual transition as fall sets in.
In September, Santiago de Cuba experiences a consistently high UV Index of 13, categorizing it as extreme with a burn time of just 10 minutes. This trend of elevated UV levels has sustained throughout the summer months, reflecting a broader pattern where the region endures its highest UV indices from February to October. Remarkably, April through September maintains this extreme classification, urging both residents and visitors to prioritize sun safety practices. As the year progresses, there is a gradual decline in UV intensity, yet September's figures remain a compelling reminder of the need for vigilance under the Caribbean sun. For detailed insights, check the full report on the Santiago de Cuba UV Index.
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As summer transitions into fall, Santiago de Cuba enjoys a generous supply of sunshine in September, with approximately 325 hours of bright light. This marks a slight dip from the sun-soaked days of July, which boasts a peak of 361 hours, and continues a trend of stable sunny weather throughout the late summer months. While September experiences a little less sunshine compared to the preceding months, it still surpasses the earlier months of the year, such as January and February, which see only 251 and 306 hours respectively. This abundant sunshine not only enhances the vibrant culture and lively streets of Santiago during this time but also sets the stage for a beautiful transition into the milder, yet still sunny, days of October.
When considering the likelihood of sunny weather in September in Santiago de Cuba, it's clear that this month offers a moderate chance of sunshine at 57%. This places September above the sunniest months of June and August, both of which dip to around 40% and 39% respectively. Notably, September's sunshine probability aligns closely with the month of May, which boasts a 64% chance, suggesting that while it transitions towards the wetter months, it still retains decent prospects for bright days. Comparatively, the sun shines much more frequently during the earlier months of the year, with February leading the pack at 87%. Overall, while visitors to Santiago de Cuba in September should not expect continuous sunshine, the likelihood of clear skies offers a pleasant backdrop for exploration and enjoyment of the region's vibrant atmosphere.
In Santiago de Cuba, the rhythm of daylight duration throughout the year paints a vibrant picture of seasonal change. As the year unfolds, January and February enjoy 11 hours of sunlight, setting a steady pace for the months ahead. By March, the days stretch slightly to 12 hours, signaling the approach of spring, while April maintains this generous offering. May through July delight in 13 hours of daylight, showcasing the height of summer and inviting outdoor exploration. As August wanes, daylight begins to taper off to 12 hours, transitioning gracefully into the shorter days of fall. By October, daylight declines to 11 hours, continuing the descent into winter, which brings November’s and December’s even shorter days of 11 hours and 10 hours, respectively. This gradual ebb and flow of light not only marks the passage of time but also enriches the cultural experiences of Santiago de Cuba throughout the seasons.
As the summer heat fades, September in Santiago de Cuba ushers in a gentler breeze, with average wind speeds dropping to 1.8 m/s (4 mph). This marks the annual low, reflecting a noticeable shift from the more invigorating gusts felt earlier in the year, such as the 3.6 m/s (8 mph) winds of March and the sprightly 3.1 m/s (7 mph) in February. The softening winds signal a transition to the drier months ahead, as the island prepares for a respite from the summer's intensity. With October following suit at the same calm pace, this month invites a more tranquil experience—perfect for leisurely strolls along the coast, accompanied by the soothing sounds of nature that flourish in this vibrant region.
Weather in Santiago de Cuba varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santiago de Cuba, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January showcase contrasting weather patterns in Santiago de Cuba. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 33°C (92°F), with an average of 27°C (81°F). This month experiences significant rainfall, totaling 119 mm (4.7 in) over 18 days, along with high humidity at 75%. In stark contrast, January boasts milder temperatures, with a minimum of 15°C (60°F) and a maximum of 30°C (87°F), averaging 24°C (76°F). January is much drier, receiving only 17 mm (0.6 in) of rain over just 3 days, and slightly lower humidity at 70%. For more detailed insights, check out this link: Santiago de Cuba weather in January.
September and February exhibit contrasting weather patterns in terms of temperature and precipitation. September boasts warmer temperatures with a minimum of 23°C (74°F), an average of 27°C (81°F), and a maximum of 33°C (92°F). It is also characterized by significant rainfall, receiving about 119 mm (4.7 in) over 18 days, contributing to a higher humidity level of 75%. In contrast, February offers milder conditions, with a minimum temperature of 17°C (62°F), an average of 25°C (77°F), and a maximum of 30°C (87°F). This month experiences considerably less rain, totaling just 13 mm (0.5 in) over only one day, accompanying a lower humidity of 67%. For a more detailed look at February weather, explore Santiago de Cuba weather in February.
September and March present notably different weather patterns in Santiago de Cuba. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 33°C (92°F), with an average temperature of 27°C (81°F). This month also experiences significant precipitation, totaling 119 mm (4.7 inches) across 18 days, and a high humidity level of 75%. In contrast, March offers a more temperate climate, with a minimum temperature of 17°C (64°F) and a maximum of 31°C (87°F), averaging 25°C (77°F). Rainfall is minimal in March, at just 25 mm (1.0 inch) over 5 days, and humidity drops to a more comfortable 66%. For more detailed insights on March's climate, check out Santiago de Cuba weather in March.
September and April exhibit distinct weather patterns. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 33°C (92°F), with an average of 27°C (81°F). This month is characterized by higher precipitation, totaling 119 mm (4.7 in) over 18 days, and a humidity level of 75%. In contrast, April enjoys milder temperatures with a minimum of 20°C (68°F), an average of 25°C (78°F), and a maximum of 31°C (88°F). The precipitation in April is significantly lower at 47 mm (1.9 in), occurring over just 9 days, and the humidity is also more comfortable at 66%. For more detailed insights about April weather, you can visit Santiago de Cuba weather in April.
When comparing the weather in September and May, it's clear that both months experience warm temperatures, but with some differences. In September, the minimum temperature is slightly higher at 23°C (74°F), and the average temperature reaches 27°C (81°F), peaking at 33°C (92°F). The month also sees significant precipitation, with 119 mm (4.7 in) falling over 18 days, contributing to a higher humidity level of 75%.
In contrast, May has a slightly lower minimum temperature of 21°C (70°F), an average of 26°C (79°F), and a maximum of 32°C (89°F). It experiences a bit more precipitation at 140 mm (5.5 in) over the same number of days, but with humidity at a more comfortable 64%. For more specific details on the climate during this month, you can visit Santiago de Cuba weather in May.
September and June exhibit quite similar temperature ranges, with both months showing a minimum temperature of around 23°C (73-74°F) and an average temperature of 27°C (81°F). However, September tends to be slightly warmer at its maximum with highs reaching 33°C (92°F) compared to June's maximum of 32°C (91°F). Notably, September experiences significantly higher precipitation, with 119 mm (4.7 in) over 18 days, whereas June sees just 61 mm (2.4 in) over 13 days. Additionally, September has higher humidity levels at 75% compared to June's 66%. For more information, you can view details about the climate in Santiago de Cuba weather in June.
When comparing the weather in September to that of July, both months exhibit warm temperatures with September slightly cooler. In September, the minimum temperature is 23°C (74°F) with an average of 27°C (81°F) and a maximum of 33°C (92°F), while July has a minimum of 24°C (75°F) and an average of 28°C (82°F), peaking at the same maximum of 33°C (91°F). However, September experiences significantly higher precipitation, with 119 mm (4.7 in) across 18 days compared to July's 65 mm (2.6 in) over 13 days. Humidity levels are quite comparable, sitting at 75% in September and 73% in July. For more detailed July weather information, you can refer to Santiago de Cuba weather in July.
September weather shows a slight decrease in average temperature compared to August, with September averaging 27°C (81°F) versus August's 28°C (83°F). Both months have the same maximum temperature of 33°C (92°F), but September experiences more rainfall, recording 119 mm (4.7 in) over 18 days, compared to August's 91 mm (3.6 in) over just 12 days. Humidity remains relatively consistent, with September at 75% and August slightly higher at 76%. For more detailed insights, check Santiago de Cuba weather in August.
In comparing the weather between September and October, we see a subtle shift in conditions. Both months share a similar minimum temperature of 23°C (74°F) and an average temperature close to 27°C; however, October experiences a slight decrease in the maximum temperature, topping out at 32°C (91°F) compared to 33°C (92°F) in September. Precipitation levels decrease slightly in October to 107 mm (4.2 in), with rain occurring on 20 days, while September sees more rain at 119 mm (4.7 in) over 18 days. Humidity remains consistent in both months at 75%. For more detailed insights, you can check Santiago de Cuba weather in October.
In comparing the weather between September and November, September tends to be slightly warmer, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 33°C (92°F). In contrast, November features a cooler range with minimum temperatures at 21°C (69°F) and maximums reaching 31°C (88°F). Additionally, September experiences higher precipitation levels, averaging 119 mm (4.7 in) over 18 days, whereas November sees less rain, with 86 mm (3.4 in) over 11 days. Humidity remains relatively similar, slightly increasing in November to 77% compared to September's 75%. For more detailed insights into November's conditions, check out Santiago de Cuba weather in November.
September and December in Santiago de Cuba showcase distinct weather patterns. September typically features warmer temperatures, with lows around 23°C (74°F) and highs reaching up to 33°C (92°F). The month is also marked by significant rainfall, averaging 119 mm (4.7 in) over 18 days, coupled with high humidity levels at 75%. In contrast, December sees a slight cooling, with minimum temperatures of 19°C (67°F) and a maximum of 31°C (88°F). The precipitation is markedly reduced to just 25 mm (1.0 in) over only 4 days, and humidity drops slightly to 73%. For a closer look at December's weather in this vibrant region, check out Santiago de Cuba weather in December.
As September unfolds in Santiago de Cuba, it brings a distinctive blend of warmth and humidity that sets it apart from other months. With temperatures averaging around 27°C and frequent rain, the month exhibits a notable increase in precipitation, reflecting the tail end of the wet season. This combination fosters a lush, vibrant environment, though it also means that visitors should be prepared for frequent showers. The consistently high humidity levels can add to the tropical feel, making September a month of contrasts—balmy days interrupted by refreshing rainfall. For those curious about Santiago de Cuba’s climate throughout the year, more detailed insights can be found at Santiago de Cuba Climate.