Last updated: August 21, 2025
September in Medellín, Colombia is characterized by a pleasant average temperature of 18°C (64°F), with maximums reaching up to 28°C (83°F) and minimums dipping to 10°C (50°F). This month experiences significant rainfall, with a substantial 243 mm (9.6 in) of precipitation over 27 days, contributing to the city's lush greenery. Coupled with a high humidity level of 88%, the vibrant atmosphere of Medellín is invigorating, making it a unique time to explore the city's rich culture and natural beauty.
In September, Medellín, Colombia, embraces a delightful climate that exemplifies the city's nickname, "City of Eternal Spring." With minimum temperatures around 10°C (50°F) and maximums reaching 28°C (83°F), visitors can expect days filled with warmth and crisp nights. The average temperature hovers at 18°C (64°F), providing a comfortable backdrop for exploring the vibrant culture and lush landscapes. This month showcases a particularly inviting blend of pleasant temperatures, mirroring the previous months' stability while hinting at the slight warmth that August introduced. As a result, September stands out as an ideal time for tourists to enjoy outdoor activities and immerse themselves in Medellín's rich offerings without the oppressive heat often found in tropical locales.
September in Medellín, Colombia, marks a significant transition in the city's rainfall patterns. With 243 mm (9.6 in) of precipitation over 27 days, it's a month that bears the hallmark of the region’s wet season. This volume of rain reflects a slight dip compared to the preceding months, particularly May's peak of 320 mm (12.6 in), yet it remains substantial enough to remind residents and visitors of Medellín's lush, vibrant landscape. The rainfall in September often comes with intense, tropical showers, which contribute to the city's characteristic greenery while providing a rhythmic backdrop to urban life. As the city moves into October, the precipitation tends to escalate again, setting the scene for a lively, rain-soaked atmosphere that defines Medellín’s wet season.
In September, Medellin experiences a noteworthy spike in humidity, peaking at 88%, a trend that reflects the region's transition into the rainy season. Following a pattern established in the previous months, where humidity levels have remained high, September is part of a broader trend with the city recording consistently elevated humidity from May through to November. This period marks the city's peak humidity months, characterized by lush greenery and vibrant flora, thanks to the frequent rainfall. As visitors navigate the city during this month, they can anticipate a warm climate cloaked in a rich, moist atmosphere, making it essential to stay hydrated while enjoying the breathtaking landscapes Medellin has to offer.
In September, Medellin, Colombia maintains its intense UV exposure, with a UV Index of 14, categorizing it as extreme and indicating a burn time of just 10 minutes. This consistent level of UV intensity throughout the year, along with neighboring months showing similar readings—like August at 15 and October reverting to 14—emphasizes the need for diligent sun protection. Across the entire year, the UV Index frequently hovers within the 13 to 17 range, making it essential for residents and visitors alike to stay vigilant against sunburn. For detailed insights and to plan your outdoor activities safely, visit Medellin UV Index.
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As September unfolds in Medellín, Colombia, it continues the trend of generous sunshine experienced throughout the year, boasting 275 hours of glorious daylight. Nestled between the peak sunny months of July and August, which saw a remarkable 299 and 293 hours respectively, September maintains a warm and inviting climate, perfect for outdoor exploration. While the later months, notably November, may see a dip down to 226 hours, September stands out with its balance of bright, inviting days that usher in the onset of fall. This enchanting time in Medellín not only offers a beautiful backdrop for urban adventures but also invites both locals and visitors to soak in the vibrant atmosphere, enhanced by the city's lush surroundings and lively culture.
In Medellin, Colombia, the likelihood of experiencing sunny weather in September sits at a modest 13%, aligning with the trend of other late winter months. As the city transitions from the dry season into the wetter months, sunshine becomes somewhat sporadic, but September manages to echo July's sunnier disposition. Notably, the chance of clear skies is higher in September than in the preceding months of April, May, and June, which all struggle to break the 7% mark. This slight uptick hints at the potential for pleasant days amidst the impending rainfall, making September a mixed bag for those seeking to bask in the sun's warm embrace.
As September unfolds in Medellín, Colombia, residents enjoy a consistent 12 hours of daylight, mirroring the pattern established in the months preceding it. This enduring duration of sunlight reflects the city's equatorial proximity, offering vibrant days perfect for exploring its lush landscapes and bustling culture. While the beginning and end of the year hint at shorter days with only 11 hours of daylight, the remarkable stability from March through September emphasizes the region's unique climate. This consistency not only enhances outdoor activities but also contributes to Medellín's reputation as the "City of Eternal Spring," where the balance of light fosters a lively, year-round atmosphere.
In September, Medellín experiences a gentle breeze, with an average wind speed of 1.2 m/s (3 mph)—a consistent figure that echoes the slightly breezier vibe of the preceding and following months. This stability in wind patterns reflects a transition to the softer, more tranquil winds typical of the region, as the city shifts away from the higher gusts of July. The consistently mild winds of September contribute to the urban landscape's charm, making leisurely strolls through its picturesque streets a delightful experience. As the months progress into the cooler days of fall, these soft winds continue to play an essential role in shaping Medellín's vibrant atmosphere.
Weather in Medellin varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Medellin, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 10°C (50°F) to a maximum of 28°C (83°F), with an average of 18°C (64°F). The month is characterized by high humidity at 88% and significant rainfall, totaling 243 mm (9.6 in) over 27 days. In contrast, January features slightly cooler temperatures, with a minimum of 9°C (49°F), an average of 17°C (63°F), and a maximum of 27°C (80°F). Precipitation is substantially lower in January, with only 93 mm (3.7 in) over 16 days and lower humidity at 74%. For more detailed information about January weather, check this link: Medellin weather in January.
When comparing the weather in September and February, it is interesting to note that both months share a similar temperature range, with minimum temperatures around 10°C (50°F) and average temperatures close to 18°C (64°F). September sees slightly warmer maximum temperatures reaching up to 28°C (83°F), while February's peak is a bit lower at 27°C (82°F). However, September is characterized by significantly higher precipitation, totaling 243 mm (9.6 in) over 27 days, compared to February's 152 mm (6.0 in) across 22 days. This difference also reflects in humidity levels, with September being much more humid at 88%, compared to February's 68%. For more detailed information, you can visit Medellin weather in February.
In September, the weather is characterized by a wider temperature range, with minimums at 10°C (50°F) and maximums reaching 28°C (83°F), while March experiences slightly warmer minimums at 11°C (52°F) and similar maximums of 27°C (81°F). September tends to be more humid, averaging around 88%, compared to March's lower humidity level of 65%. Precipitation is more frequent in September, with 27 days of rain totaling 243 mm (9.6 in), whereas March sees a slightly higher total of 278 mm (11.0 in) across 28 days. For more specific details on March weather, you can check Medellin weather in March.
In comparing the weather of September and April, we can observe some notable differences. September records a minimum temperature of 10°C (50°F) and a maximum of 28°C (83°F), with an average of 18°C (64°F). The month experiences a high level of precipitation, totaling 243 mm (9.6 in) over 27 days, coupled with humidity at 88%. In contrast, April has slightly higher minimum temperatures at 12°C (53°F) and a maximum of 27°C (80°F), while maintaining the same average of 18°C (64°F). However, April sees even more precipitation, reaching 307 mm (12.1 in), also across 27 days, but with lower humidity at 73%. This unique combination of weather makes each month distinct, showcasing the variable climate patterns. For a detailed look at April's conditions, you can visit Medellin weather in April.
When comparing the weather in September and May, both months exhibit similar average temperatures, ranging around 18°C (64°F) with maximum temperatures peaking at 28°C (82-83°F). However, September tends to be slightly cooler at its minimum temperature of 10°C (50°F), while May starts a bit warmer at 11°C (52°F). Precipitation levels are notably higher in May, with 320 mm (12.6 in) over 29 days compared to September's 243 mm (9.6 in) across 27 days, making May a wetter month despite the similar humidity level of 88% for both. For more detailed insights, you can explore Medellin weather in May.
When comparing the weather in September and June, it is evident that both months have similar average temperatures, hovering around 18°C (64°F). However, September tends to be slightly warmer with a maximum temperature of 28°C (83°F), compared to June’s maximum of 27°C (82°F). Precipitation levels are notably higher in September, with 243 mm (9.6 in) of rain falling over 27 days, which is more than June's 193 mm (7.6 in) during the same number of days. Humidity levels are also quite high in both months, with September at 88% and June at 89%, making for a generally humid experience. For more details, you can check Medellin weather in June.
In comparing the weather of September and July, one can observe a few key differences. September tends to be slightly warmer, with average temperatures reaching 18°C (64°F) and maximums around 28°C (83°F), while July's averages are similar, hovering at about 18°C (65°F) but with a maximum of 27°C (80°F). Additionally, September experiences more rainfall, totaling 243 mm (9.6 in) over 27 days, compared to July's 158 mm (6.2 in) over 26 days. Humidity levels remain relatively constant, with September at 88% and July slightly higher at 89%. For more detailed insights, you can check Medellin weather in July.
In comparing the weather between August and September, both months feature similar temperature ranges, with minimums around 10°C (50°F) and maximums peaking at 28°C (83°F). However, September tends to be slightly cooler on average at 18°C (64°F) compared to August's average of 18°C (65°F). A significant difference lies in the precipitation, with September experiencing increased rainfall of 243 mm (9.6 in) over 27 days, in contrast to August's 176 mm (6.9 in) over 24 days. Additionally, September's humidity is higher at 88%, compared to August's 87%. For those interested, more detailed insights can be found here: Medellin weather in August.
In comparing the weather patterns of September and October, both months exhibit relatively mild temperatures, with September slightly warmer overall. The average temperature in September reaches 18°C (64°F), while October sees a slight drop to 17°C (64°F). Precipitation levels increase in October, rising from 243 mm (9.6 in) in September to 303 mm (11.9 in), and the number of rainy days also increases from 27 to 29. Humidity remains high in both months, with October showing a marginally higher level at 89% compared to September's 88%. For a detailed overview, you can visit Medellin weather in October.
September and November weather in Medellín share some similarities, but also feature distinct differences. In September, the temperatures range from a minimum of 10°C (50°F) to a maximum of 28°C (83°F), with an average of 18°C (64°F). Rainfall is quite significant, with 243 mm (9.6 in) spread over 27 days, contributing to a humid atmosphere with an average humidity of 88%.
In contrast, November has slightly warmer temperatures, with a minimum of 12°C (54°F) and a maximum of 25°C (78°F), while still averaging around 17°C (64°F). The month experiences an increase in precipitation, totaling 260 mm (10.2 in) across 28 days, resulting in higher humidity levels of 90%. For more detailed information on November weather, you can visit Medellin weather in November.
In September, the weather is characterized by a wider temperature range, with minimums dropping to 10°C (50°F) and maximums reaching 28°C (83°F), making it slightly warmer during the day. The month is also quite rainy, with a total precipitation of 243 mm (9.6 in) over 27 days and a high humidity of 88%. In contrast, December offers a slightly milder experience with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 25°C (78°F). The precipitation decreases significantly to 131 mm (5.2 in) over 22 days, and humidity remains relatively high at 85%. Overall, while both months share similar average temperatures, December tends to be drier and a bit cooler compared to the wetter and warmer September. For more details, check out Medellin weather in December.
As September unfolds in Medellín, the city experiences a unique blend of warmth and humidity, standing out from other months. Temperatures hover around a comfortable average, inviting visitors to explore its vibrant culture and lush landscapes. However, the month also brings significant rainfall, with frequent downpours adding to the lush scenery and upping the humidity levels to a muggy 88%. This increase in precipitation typically results in 27 rainy days, painting a picture of a lush, green city that thrives on the nourishing rains. So, whether you're seeking adventure or relaxation, September offers a distinctive charm in Medellín's climate, making it a memorable time to experience the city's vibrant life. For more comprehensive insights, visit Medellin Climate.