Last updated: August 21, 2025
September in Santa Barbara, Colombia presents a captivating blend of mild temperatures and abundant rainfall. With maximum temperatures reaching 23°C (74°F) and average conditions around 17°C (62°F), visitors can expect a comfortable climate, albeit with a noticeable chill at night, as lows dive to 11°C (52°F). This month is characterized by significant precipitation, totaling 274 mm (10.8 in), spread across 29 rainy days, resulting in an impressive humidity level of 78%. The lush landscapes and vibrant greenery, bolstered by the frequent showers, make September an enchanting time to experience the beauty of this Colombian gem.
In September, Santa Barbara, Colombia experiences mild and consistent temperatures, making it an inviting destination during this time of year. With a minimum temperature of 11°C (52°F), an average of 17°C (62°F), and a maximum reaching 23°C (74°F), the climate remains comfortable and pleasant. This month notably continues the trend of mild evenings, characteristic of the previous summer months, while retaining the coolness that the transition into fall brings. Visitors can expect a charming blend of warmth and cool breezes, ideal for exploring the beautiful landscapes of the region.
In September, Santa Barbara, Colombia experiences a significant amount of rainfall, with 274 mm (10.8 in) recorded, making it one of the wetter months of the year. This precipitation occurs over 29 days, indicating a persistent presence of rain that characterizes this time of year. September typically follows the peak rainy months of April and May, where totals are even higher, suggesting a gradual tapering off of the deluge. The trend of increasing rainfall from January to May, followed by a slight decline through the summer, continues into September. This month marks a transition as the rainy season begins to shift, with rainfall gradually decreasing as the year progresses toward drier months in December and January. The regularity of rain underscores the region's tropical climate, where wet and dry cycles play a crucial role in the local ecosystem.
In Santa Barbara, Colombia, September marks a transitional phase in humidity levels. Following the peak of the wet season, where June and July experience a staggering 88% humidity, September displays a slightly reduced yet significant humidity of 78%. This drop reflects the tail end of the intense rainy months, easing into a more comfortable, albeit still humid, atmosphere. The month of September maintains a high level of moisture in the air, continuing the trend seen from May through August, where humidity levels consistently surpass 80%. As autumn approaches, the gradual decline in humidity foreshadows a shift towards October's humidity increase, hinting at the cycle of climatic change in this lush region.
In September, Santa Barbara, Colombia, continues to boast an extreme UV Index of 14, reflecting consistent high levels of sun exposure seen throughout the year. Following a vigorous summer, the UV Index remains elevated, on par with the preceding months, indicating that protection from sun exposure is crucial during this time. The 10-minute burn time serves as a stark reminder of the intensity of sunlight in this region, urging residents and visitors alike to take necessary precautions. This trend of high UV levels, consistently hovering around the 12 to 16 range from January to September, emphasizes the importance of sun safety. For detailed UV insights and to plan your activities accordingly, check out the Santa Barbara UV Index.
UV Risk Categories
As September arrives in Santa Barbara, Colombia, the region enjoys a delightful average of 198 hours of sunshine, marking a subtle dip from the vibrant summer months. While the sun-soaked days of January and February, boasting 245 and 294 hours respectively, set a high bar, September maintains a pleasing warmth reminiscent of summer's glow. Following a peak in February, a gradual decline emerges, indicative of the transition into the cooler months. Interestingly, November offers a pleasant resurgence with 221 hours, suggesting that the charm of sunny days lingers throughout the year. With its moderate climate, September serves as a perfect bridge, inviting visitors to bask in the tranquil atmosphere before the year's end.
In Santa Barbara, Colombia, September offers a modest chance of sunny weather, with approximately 15% likelihood of clear skies. This marks a slight increase from the summer months of July and August, which see an 8% to 14% chance of sunshine. However, as we look back through the year, it's revealing that the onset of autumn tends to bring more overcast days, with April and May presenting the lowest probabilities of sun, at a mere 7% and 5% respectively. Despite September's slightly brighter outlook compared to the preceding months, it still reflects the trend of diminished sunshine as the year progresses, making clear days a cherished rarity.
In Santa Barbara, Colombia, September enjoys a delightful 12 hours of daylight, which aligns with the trend seen from March through August. This consistent duration reflects the region's tropical climate, where daylight remains relatively stable throughout the year. As the days gradually shorten into October, with just 11 hours of daylight, September stands out as a month of ample brightness, perfect for outdoor activities and enjoying the vibrant local culture. The steady light not only highlights the beauty of the landscape but also sets the stage for a lively transition into the forthcoming months, inviting exploration and appreciation of this picturesque locale.
As September rolls into Santa Barbara, Colombia, the gentle breeze continues to grace the region with its soft touch, maintaining an average wind speed of 1.0 m/s (2 mph). This consistent airflow mirrors the trends seen throughout the year, where the winds remain comfortably light, rarely surpassing the calmness of 1.2 m/s. From the start of the year, where January's winds peak slightly at 1.2 m/s, to the steady pace of 1.0 m/s that characterizes the late months, September embodies the tranquil essence of the region. The delicate winds, particularly during this time, create an inviting atmosphere, perfect for leisurely strolls along the coastline or enjoying outdoor activities under the warm Colombian sun.
Weather in Santa Barbara varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santa Barbara, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present notable differences in weather patterns. September features a mild temperature range, with minimums around 11°C (52°F), averages at 17°C (62°F), and maximums reaching 23°C (74°F). This month also experiences high precipitation levels, totaling 274 mm (10.8 in) over 29 days, coupled with a humidity of 78%. In contrast, January has slightly cooler temperatures, with minimums at 8°C (47°F), averages remaining consistent at 16°C (62°F), and maximums peaking at 24°C (76°F). The month sees a significant drop in precipitation, totaling 101 mm (4.0 in) across just 14 days, and a lower humidity level of 52%. For more details about the weather in January, you can visit Santa Barbara weather in January.
September and February exhibit notable differences in weather conditions. September typically experiences a minimum temperature of 11°C (52°F) and an average of 17°C (62°F), peaking at 23°C (74°F). This month is characterized by high humidity at 78% and substantial rainfall, with 274 mm (10.8 in) spread over 29 days. In contrast, February offers slightly cooler nights with a minimum of 9°C (48°F) while maintaining the same average temperature of 17°C. However, it can reach higher daytime highs of 25°C (77°F). The precipitation is significantly lower at 94 mm (3.7 in) over just 18 days, and humidity drops to a more comfortable 47%. For more detailed information about February weather, visit Santa Barbara weather in February.
In September, the weather features a similar temperature range to March, with minimums around 11°C (52°F) and average highs reaching 23°C (74°F). However, September is marked by significantly higher precipitation, totaling 274 mm (10.8 in) over 29 days and a humidity level of 78%, making it a notably wetter and more humid month. In contrast, March enjoys slightly warmer maximum temperatures peaking at 24°C (75°F) but has less rainfall at 269 mm (10.6 in) across 27 days and a much lower humidity of 45%, resulting in a drier, more comfortable atmosphere. For a more detailed look at weather patterns, you can check Santa Barbara weather in March.
September and April share similar average temperatures, ranging from a minimum of 11°C (52°F) to an average of 17°C (62°F), with September peaking at 23°C (74°F) and April reaching a slightly higher maximum of 24°C (76°F). However, September experiences significantly more precipitation, with 274 mm (10.8 in) over 29 days compared to April's 338 mm (13.3 in) across 28 days. In addition, the humidity in September is notably higher at 78%, while April enjoys a more comfortable 54%. For a detailed view of weather conditions in April, you can check out Santa Barbara weather in April.
In comparing the weather of September and May, both months exhibit mild temperature ranges, with September experiencing a minimum of 11°C (52°F) and a maximum of 23°C (74°F), while May has a slightly warmer maximum of 25°C (78°F) and a minimum of 10°C (51°F). The average temperature for both months hovers around 17°C (62°F-63°F), indicating a similar comfort level. However, May sees significantly more precipitation at 434 mm (17.1 in), compared to September's 274 mm (10.8 in), and a similar number of rainy days—30 in May versus 29 in September. Humidity is marginally higher in May at 81% compared to September's 78%. For a more detailed look at May weather, you can refer to Santa Barbara weather in May.
In comparing the weather of September and June, we see similarities in temperature, with both months featuring a minimum of 11°C (52°F), an average of 17°C (62°F), and a maximum of 23°C (74°F). However, June experiences significantly higher precipitation, with 431 mm (17.0 in) compared to September's 274 mm (10.8 in), despite both months having 29 days of recorded rainfall. Additionally, June's humidity level is slightly higher at 88% versus September's 78%, contributing to a more humid atmosphere. For a detailed look at June weather specifics, you can visit Santa Barbara weather in June.
In comparing the weather of September and July, we notice a few similarities and differences. Both months have an average temperature of around 17°C (62°F) while the daily maximum reaches 23°C (74°F). However, September experiences slightly cooler minimum temperatures at 11°C (52°F) compared to July's 12°C (53°F). Precipitation levels are notably different, with July receiving more rain—383 mm (15.1 in)—over 30 days, compared to September's 274 mm (10.8 in) spread over 29 days, indicating slightly drier conditions in September. Additionally, humidity levels are higher in July at 88%, compared to September’s 78%. For a detailed look into July's weather, check Santa Barbara weather in July.
In comparing the weather of September and August, we see similarities and slight differences. Both months feature a minimum temperature of 11°C (52°F) and an average of 17°C (62°F), with a maximum temperature capped at 23°C (74°F). However, September experiences slightly less precipitation, with 274 mm (10.8 in) over 29 days, compared to August's 281 mm (11.0 in) over 28 days. Additionally, humidity levels are marginally lower in September at 78%, while August sees a higher humidity of 82%. For more detailed insights, you can visit Santa Barbara weather in August.
In September, the weather features moderate temperatures with a minimum of 11°C (52°F), an average of 17°C (62°F), and a maximum of 23°C (74°F). However, it also brings significant rainfall, totaling 274 mm (10.8 in) across 29 days, coupled with a relative humidity of 78%.
In contrast, October sees a slight dip in the average temperature to 16°C (62°F) but boasts a higher maximum temperature of 25°C (77°F). Precipitation increases to 377 mm (14.8 in) over 30 days, and humidity rises to 83%. Thus, while October may be warmer at times, it also presents a wetter and more humid climate. For more details, you can check Santa Barbara weather in October.
September and November share similar temperature ranges, with minimums around 11°C (52°F), averages at 17°C (62°F), and maximums peaking at 23°C (74°F). However, November tends to be slightly wetter, with precipitation amounts increasing from 274 mm (10.8 in) in September to 297 mm (11.7 in), while both months experience rain on approximately 29 days. Additionally, November shows a slight rise in humidity, averaging 83% compared to September’s 78%. For a detailed look at November weather specifics, visit Santa Barbara weather in November.
In September, the weather features a minimum temperature of 11°C (52°F) and an average of 17°C (62°F), with a maximum reaching 23°C (74°F). This month is characterized by substantial rainfall, with a total of 274 mm (10.8 in) over 29 days, contributing to a humidity level of 78%. In contrast, December sees slightly cooler temperatures, with a minimum of 9°C (49°F) and the same average and maximum temperatures of 17°C (62°F) and 23°C (74°F), respectively. Precipitation is significantly lower in December, totaling 171 mm (6.7 in) over 24 days, and humidity drops to 70%. For more details on December weather, visit Santa Barbara weather in December.
As summer transitions into fall, September in Santa Barbara brings a unique blend of weather characteristics that set it apart from other months. The temperatures remain mild, with an average of 17°C, making it comfortable yet cooler than the peak heat of summer. However, significant rainfall becomes a common theme, with nearly 30 days of precipitation contributing to a lush landscape. This increased humidity at 78% further distinguishes September from drier summer months, creating a vibrant atmosphere that invites locals and tourists alike to enjoy the enchanting natural beauty of the region. For more insights on weather patterns, check out Santa Barbara Climate.