Last updated: August 21, 2025
September in Cartago, Colombia brings mild temperatures with a maximum of 24°C (76°F) and an average of 16°C (60°F), while nighttime drops to a refreshing minimum of 9°C (48°F). This month is characterized by a notable precipitation total of 94 mm (3.7 in), spread over approximately 16 days, creating a lush and vibrant atmosphere. With a relative humidity of 53%, the weather offers a comfortable yet slightly damp experience, perfect for exploring the rich natural beauty and cultural heritage of the region.
In September, Cartago, Colombia, experiences mild and pleasant temperatures, with a minimum of 9°C (48°F), an average of 16°C (60°F), and a maximum reaching 24°C (76°F). This month maintains the trend of steady temperatures characteristic of the region, offering a comfortable climate that invites exploration. The slight increase in both minimum and maximum temperatures compared to August echoes the gradual warmth of the transition into spring. As the days get a touch warmer, the consistently mild averages make September an ideal time to enjoy the natural beauty and vibrant culture of Cartago, while still basking in that refreshing mountain air.
In September, Cartago experiences a modest precipitation total of 94 mm (3.7 in), marking a notable decrease compared to the heavier rainfalls of the preceding months. With 16 days of rain, this month sees fewer precipitation days than the seasonal peak typically observed from March through November. This trend reflects a transitional phase as the region gradually shifts toward the more intense rains of October, which averages a substantial 204 mm (8.0 in). Despite the decrease in rainfall, September still plays a crucial role in maintaining the lush greenery and vibrant ecosystems that characterize Cartago, setting the stage for the wetter months to follow.
In September, Cartago experiences a significant drop in humidity, averaging just 53%, making it one of the driest months of the year. This notable decrease follows the peak humidity levels seen in May and June, which consistently reach an impressive 93%. The transition from the heavy, moisture-laden months of late spring and early summer to the comparatively dry September indicates a shift in the region's climatic patterns. This dip in humidity not only provides a refreshing respite but also sets the stage for the increasing humidity of the approaching months, as October sees a rise to 67%. The seasonal fluctuations in Cartago highlight the diverse microclimates within this vibrant region, offering a unique atmosphere for both residents and visitors alike.
In September, Cartago, Colombia experiences a UV Index of 15, which falls into the extreme exposure category, indicating a burn time of just 10 minutes for unprotected skin. This month continues a trend established in the preceding summer months, where UV levels remain notably high, with values hovering between 14 and 18 from March through August. While September sees a slight dip compared to July and August, it remains crucial for residents and visitors to exercise caution under the sun. As the year progresses, the UV Index averages around 15 to 16, emphasizing the need for sun protection consistently. For more detailed insights on UV levels throughout the year, you can refer to Cartago UV Index.
UV Risk Categories
In September, Cartago, Colombia continues to bask in the lavishness of sunshine with an impressive 289 hours of sunlight, making it one of the sunniest months of the year. Following a crescendo of brightness in July and August, which showcased 282 and 298 hours respectively, September maintains a warm glow, albeit slightly less than the peak summer months. This consistent abundance of sunshine reflects a trend of high sunlight hours during the mid-year, before tapering off into the cooler months of October and November. The overall pattern highlights Cartago's splendid climate, ensuring plenty of bright, cheerful days for residents and visitors alike throughout the late summer and into early autumn.
In Cartago, Colombia, the likelihood of enjoying sunny weather decidedly improves as September approaches, peaking at 27%—a significant jump from the earlier months of the year. This trend highlights a transitional phase in the region's climate, as the gloom of April and May gives way to brighter skies. While January and February struggle with a mere 15% and 8% chance of sun, respectively, the summer months do show some promise, particularly July with 20% sunshine potential. September stands out as a month where the weather shines more favorably, inviting locals and tourists alike to relish the warmth and brightness before the shorter days of October settle in.
In Cartago, Colombia, September marks a continuation of the region's remarkable consistency in daylight duration. Throughout the year, residents and visitors alike enjoy an average of 12 hours of daylight each month, creating a harmonious balance between day and night. This uniformity not only contributes to the area's enchanting atmosphere but also offers ample opportunities for outdoor activities, exploration, and cultural experiences. As September unfolds, the predictable daylight serves as a gentle reminder of nature's rhythms, inviting everyone to embrace each sunlit moment in this vibrant Colombian locale.
In September, Cartago, Colombia experiences a gentle breeze with an average wind speed of 1.7 m/s (4 mph), slightly above the calm winds typical of the earlier months. This soft increase in wind speed from the summer months reflects a gradual transition into the more dynamic patterns of the upcoming dry season. Notably, July showcases the peak wind activity at 2.1 m/s (5 mph), marking it as the windiest month of the year. As the year winds down, the trend shifts towards calmer conditions in October and November. This provides a serene backdrop perfect for exploring the lush landscapes and vibrant culture of Cartago. Overall, September's mild winds offer a refreshing touch, inviting both locals and visitors to enjoy the temperate climate and enchanting surroundings.
Weather in Cartago varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Cartago, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in September and January, there are several noteworthy differences. In September, temperatures range from a minimum of 9°C (48°F) to a maximum of 24°C (76°F), with an average of 16°C (60°F). The month is marked by moderate precipitation, totaling 94 mm (3.7 inches) over approximately 16 days, along with a humidity level of 53%. In contrast, January features slightly cooler mornings with a minimum temperature of 6°C (43°F) but similar maximum temperatures, reaching up to 25°C (77°F) and maintaining an average of 15°C (60°F). Precipitation in January is significantly higher at 176 mm (6.9 inches) spread over 21 days, accompanied by increased humidity of 72%. For more details on January weather, you can check Cartago weather in January.
September and February exhibit remarkably similar average temperatures, both hovering around 16°C (60°F), with lows of 9°C (48°F) and highs reaching 24°C (76°F). However, February is notably wetter than September, receiving 184 mm (7.2 in) of precipitation over 23 days, in contrast to September’s 94 mm (3.7 in) across 16 days. Additionally, February's humidity peaks at 66%, reflecting the increased moisture in the air compared to the 53% average humidity seen in September. For more detailed insights into February weather in Cartago, you can explore Cartago weather in February.
When comparing the weather in September and March, some notable differences emerge. September tends to have a milder temperature range with a minimum of 9°C (48°F), an average of 16°C (60°F), and a maximum of 24°C (76°F). In contrast, March features slightly lower minimum temperatures at 8°C (47°F) but a similar average of 15°C (60°F) and maximum at 25°C (77°F). One significant difference is the amount of precipitation; September sees 94 mm (3.7 in) over 16 days, while March experiences much heavier rainfall with 274 mm (10.8 in) spread over 28 days. This results in a notably higher humidity level of 74% in March compared to 53% in September. For more details, you can check Cartago weather in March.
When comparing the weather in September and April, it’s evident that both months share similar average temperatures, hovering around 16°C (60°F). However, September tends to be slightly warmer with maximum temperatures reaching up to 24°C (76°F), while April peaks at 23°C (74°F). In contrast, April experiences significantly more rainfall, with 240 mm (9.5 in) of precipitation over 26 days, compared to September's 94 mm (3.7 in) over just 16 days. Additionally, April's humidity is considerably higher at 83%, while September's is a more moderate 53%. For a detailed look at the weather in April, visit Cartago weather in April.
In comparing the weather between September and May, we see some notable differences. September experiences a slightly wider temperature range with minimums around 9°C (48°F) and maximums reaching 24°C (76°F), while May's temperatures hover closely around 10°C (51°F) as a minimum and peak at 23°C (74°F). Precipitation is significantly higher in May, with 214 mm (8.4 in) over 28 days, compared to September's 94 mm (3.7 in) over 16 days. Additionally, May has a much higher humidity level at 93%, creating a wetter atmosphere, whereas September's humidity is more moderate at 53%. For those interested in a detailed overview of May's weather, please refer to this link: Cartago weather in May.
In comparing the weather of September and June, we observe several notable differences. September typically enjoys a slightly warmer average temperature of 16°C (60°F) compared to June's average of 15°C (60°F), with maximum temperatures reaching up to 24°C (76°F) in September and 23°C (74°F) in June. However, June experiences considerably higher precipitation, totaling 144 mm (5.7 in) over 27 days, while September has less rainfall at 94 mm (3.7 in) across 16 days. Additionally, the humidity levels are significantly higher in June at 93%, compared to September's 53%. For a more detailed look at June's weather, visit Cartago weather in June.
When comparing the weather in September and July, we see that September tends to be slightly warmer overall, with average temperatures reaching 16°C (60°F) compared to July's average of 15°C (59°F). The maximum temperature in September is also a bit higher at 24°C (76°F), versus July's 23°C (74°F). However, September experiences more rainfall, with 94 mm (3.7 in) over 16 days, while July has less precipitation at 79 mm (3.1 in) over 22 days. Additionally, July has significantly higher humidity levels at 84%, compared to September's more comfortable humidity of 53%. For a more detailed look at July weather, you can check Cartago weather in July.
In comparing the weather of September to that of August, we see some noteworthy differences. September experiences slightly warmer temperatures, with a minimum of 9°C (48°F) and an average of 16°C (60°F), compared to August's minimum of 8°C (47°F) and an average of 15°C (60°F). Both months have a maximum temperature of 24°C (75°F in August and 76°F in September), reflecting a similar warm trend. However, September is wetter, with 94 mm (3.7 in) of precipitation over 16 days, overshadowing August’s 69 mm (2.7 in) over 15 days. Humidity is also higher in August at 61%, while September has a more comfortable 53%. For more detailed insights, visit Cartago weather in August.
September and October exhibit notable differences in weather patterns. September typically enjoys milder temperatures, with averages around 16°C (60°F) and maximums reaching up to 24°C (76°F). In contrast, October sees a slight decrease in average temperature to 15°C (60°F), although maximum temperatures remain steady at 24°C (76°F). Precipitation significantly increases in October, with 204 mm (8.0 in) recorded over 25 days, compared to September's 94 mm (3.7 in) over 16 days. Additionally, October experiences higher humidity levels at 67%, up from September's 53%. For more detailed insights about October’s weather, you can visit Cartago weather in October.
September and November both feature similar minimum temperatures, averaging around 9°C (48-49°F), but November experiences slightly cooler average temperatures at 15°C (60°F) compared to September's 16°C (60°F). The maximum temperatures remain comparable, with both months reaching up to 24°C (75-76°F). However, November significantly increases in precipitation, accumulating 300 mm (11.8 in) over 28 days, while September has a much lighter 94 mm (3.7 in) spread across 16 days. Additionally, the humidity rises noticeably in November to 78%, compared to September's 53%. For more details on November weather patterns, visit Cartago weather in November.
September and December present a notable shift in weather conditions. While both months experience similar minimum temperatures around 9°C (48°F) and maximum temperatures peaking at 24°C (75-76°F), December sees a slight decrease in the average temperature, dropping to 15°C (60°F).
In terms of precipitation, December is significantly wetter, accumulating 236 mm (9.3 in) over 26 days, compared to September's 94 mm (3.7 in) over 16 days. Additionally, the humidity levels rise sharply in December to 85%, contrasting with September's more comfortable 53%.
For a detailed overview of December weather in Cartago, you can visit Cartago weather in December.
As September unfolds in Cartago, the weather presents a delightful shift compared to other months. With a comfortable average temperature hovering around 16°C, residents and visitors experience a refreshing break from the heat of summer. This month, however, also brings increased rainfall, with precipitation occurring on almost half the days, contributing to the lush landscapes that characterize the region. The average humidity level maintains a moderate feel, ensuring that every droplet enhances the vibrant flora. For those interested in the nuances of this month’s climate, more detailed information can be found at Cartago Climate.