September Weather in Cali, Colombia

Last updated: August 21, 2025

September in Cali, Colombia offers a warm and humid experience, with maximum temperatures reaching up to 30°C (86°F) and an average of 22°C (72°F). Visitors can expect mild evenings as temperatures can dip to a comfortable 16°C (61°F). While the month is characterized by frequent rainfall, with 148 mm (5.8 in) falling over approximately 20 days, the lush surroundings thrive in this vibrant climate. With a humidity level of 69%, the air feels rich and alive, making September a unique time to explore the dynamic culture and stunning landscapes of this beautiful city.

September Temperature in Cali

In September, Cali, Colombia, maintains its reputation for pleasant weather, with temperatures showing a slight consistency compared to previous months. The minimum temperature hovers around 16°C (61°F), while the average temperature dips slightly to 22°C (72°F), and the maximum reaches a warm 30°C (86°F). This month mirrors the overall trend observed during the year, with daily highs remaining stable and comfortable, perfect for outdoor activities. As the city transitions into the latter part of the year, the slight variation suggests that while the days may feel warmer, the nights remain refreshingly cool, making September an ideal time to explore Cali’s vibrant landscapes and rich culture.

September Weather in Cali: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cali, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cali, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec727272727373737372727272
Data source: Temperature data for Cali generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Cali

In September, Cali, Colombia experiences a moderate precipitation total of 148 mm (5.8 inches), falling over 20 days. This marks a slight decrease compared to the preceding months, creating a transition from the heavier rainfall typically seen earlier in the year. While September's rainfall is less than the intense downpours of February and November, it still contributes to the region's lush greenery. The month serves as a prelude to October's surge, where precipitation leaps back up to 302 mm (11.9 inches), signaling the onset of the rainy season. Thus, September effectively acts as a bridge between the drier months of summer and the impending autumnal rains, showcasing Cali's dynamic weather patterns.

September Precipitation Trends in Cali

The chart displays monthly precipitation patterns in Cali, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Cali, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec202322298260213141133162148302398351
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Cali

In Cali, Colombia, September marks a transition in humidity levels, with an average of 69%. This dip follows a notably humid period from May through August, where values peaked at 88% and then settled at a more moderate 64% in August. As the city shifts from the drier summer months into the wetter season, September offers a slightly fresher atmosphere that hints at the rainy days ahead in October, where humidity rebounds to 80%. Overall, September serves as a pivotal bridge, showcasing Cali's dynamic climate and its innate rhythm of moisture throughout the year.

September Average Humidity in Cali

This chart illustrates the average monthly humidity levels in Cali, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Cali is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%71%78%81%88%85%75%64%70%80%85%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cali

In September, residents of Cali, Colombia, continue to face extreme UV index levels, measuring 15, with a burn time of just 10 minutes. This month exhibits a slight dip from the peak observed in the previous months, yet the potential for skin damage remains high. This trend showcases a consistent pattern throughout the year, where UV index levels rarely drop below 14, emphasizing the necessity for proper sun protection. Whether enjoying the outdoors or going about daily activities, it’s crucial to stay informed and take precautions to shield yourself from harmful rays. To learn more about the UV index trends in Cali, visit Cali UV Index.

Maximum UV Index Levels in Cali for September

The chart shows the monthly maximum UV Index (UVI) for Cali in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Cali typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151617171514141415141312
Data source: Cali September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Cali

September in Cali, Colombia, enjoys a delightful average of 242 sunshine hours, making it one of the sunniest months of the year. This follows a trend of increasing sunlight as the year progresses—August leads with an impressive 263 hours, setting a high bar for September. The pleasant warmth continues to entice residents and visitors alike, preceding a dip in sunshine as the rainy season approaches in October and November. Overall, the month stands out as a golden opportunity for outdoor enthusiasts to soak in the vibrant atmosphere before the clouds gather, highlighting Cali's splendid climate.

Monthly Sunshine Duration in Cali: September Highlighted

The September sunshine duration represents the total number of hours Cali experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec213h231h239h210h205h217h252h263h242h195h180h224h
Data source: Cali September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cali During September

In Cali, Colombia, September offers a 19% chance of sunny weather, positioning it as one of the more favorable months for sunshine after the dismal dry spell of June and August, which see chances as low as 6%. This slight increase in sunshine likelihood reflects a trend toward gradually brighter days as the year progresses, particularly in contrast to the particularly overcast months earlier in the season. While the chances are modest, September stands out as a promising window for enjoying outdoor activities in the city, as it precedes the drop in sunlight typical of the following months, such as October and November, which hover around 10%. Embracing the mild warmth of September can pave the way for delightful experiences under the sun in this vibrant city.

Percentage of Sunny Days in September in Cali

The chart illustrates the percentage of sunny days in Cali throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Cali experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%13%11%5%13%8%15%6%19%10%9%10%
Data source: Cali September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cali in September

In Cali, Colombia, September continues the trend of consistent daylight duration seen throughout much of the year, offering approximately 12 hours of sunlight each day. This stable light pattern reflects a near-equatorial climate where daylight varies little with the seasons. Following a gradual increase in daylight from 11 hours in January and February, the sun graces Cali for 12 hours from March through October. This steady illumination not only enhances the vibrant atmosphere of the city but also invites residents and visitors alike to embrace the outdoors. As the year progresses, daylight hours begin to wane again, with November and December seeing a return to 11 hours.

Average Daylight Hours in Cali for September

The chart illustrates the variation in daylight duration in Cali throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 55m11h 59m12h 5m12h 11m12h 16m12h 18m12h 17m12h 12m12h 6m12h 1m11h 56m11h 54m
Data source: Cali daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Cali

As September breezes into Cali, Colombia, the average wind speed holds steady at 1.3 m/s (3 mph), reflecting a pattern of gentle winds that has emerged throughout the year. Following a slight uptick in July and August, where winds reached 1.4 m/s, September marks a reassuring return to its earlier, milder pace. This month’s conditions resonate with the overall trend observed from January to June, characterized by consistently light breezes that invite a tranquil atmosphere. As the year progresses, the wind speed gradually decreases into the cooler months, with anticipation of the calm December ahead. Whether you're enjoying a leisurely stroll or sipping coffee at a café, September's winds add a touch of serenity to the vibrant Colombian landscape.

Average September Wind Speed in Cali

The chart displays monthly wind speed patterns in Cali, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.31.11.11.21.21.21.41.41.3 m/s1.21.01.1
Data source: Cali September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Cali Compares to Other Months

Weather in Cali varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Cali, focusing on differences in temperature, rainfall, humidity, and UV levels.

In September, the weather features temperatures ranging from a minimum of 16°C (61°F) to a maximum of 30°C (86°F), with an average temperature of 22°C (72°F). This month experiences around 148 mm (5.8 in) of rainfall over about 20 days, with humidity levels at 69%. In contrast, January shows a slightly cooler temperature range with a minimum of 14°C (58°F) and a similar maximum of 30°C (87°F), maintaining the same average of 22°C (72°F). However, January is wetter, receiving 201 mm (7.9 in) of precipitation over 21 days, and has a marginally higher humidity of 74%. For more detailed information about the weather in January, you can check Cali weather in January.

When comparing the weather in September and February, both months share similar average temperatures, ranging from a minimum of 16°C (61°F) to a maximum of 30°C (86°F). However, February tends to be wetter, with a total precipitation of 322 mm (12.7 in) over 25 days, compared to September's 148 mm (5.8 in) over 20 days. Additionally, February's humidity is slightly higher at 71%, compared to September's 69%. For more detailed information, you can check out Cali weather in February.

In comparing the weather of September and March, both months show similar average temperatures, hovering around 22°C (72°F), but the overall conditions differ significantly. September experiences a minimum of 16°C (61°F) and a maximum of 30°C (86°F), with a total precipitation of 148 mm (5.8 in) spread over 20 days. In contrast, March sees slightly cooler minimum temperatures at 15°C (59°F) and a maximum of 29°C (85°F), but it is considerably wetter, with 298 mm (11.7 in) of rain over 27 days. Additionally, March exhibits higher humidity at 78% compared to 69% in September. For more detailed insights on the weather in March, check out Cali weather in March.

When comparing the weather in September and April, both months exhibit similar average temperatures, hovering around 22°C (72°F). However, September tends to have slightly lower minimum temperatures at 16°C (61°F) compared to April's 17°C (62°F). Precipitation levels are notably higher in April, with a total of 259 mm (10.2 in) over 23 days, while September sees 148 mm (5.8 in) over 20 days. The humidity is also slightly elevated in April at 81%, compared to September’s 69%. For further details, you can check out Cali weather in April.

September and May have similar temperature profiles, with both months featuring a minimum of 16°C (61°F) and a maximum reaching 30°C (86°F to 87°F). However, May tends to be slightly warmer on average, at 23°C (73°F), compared to September's average of 22°C (72°F). In terms of precipitation, May is notably wetter, with 213 mm (8.4 in) over 23 days, compared to September's 148 mm (5.8 in) over 20 days. Additionally, the humidity in May is higher at 88%, while September maintains a lower humidity level of 69%. For more details, check out Cali weather in May.

In comparing the weather of September and June, both months exhibit similar temperature ranges, with September recording a minimum of 16°C (61°F) and a maximum of 30°C (86°F), while June's temperatures span from 16°C (62°F) to 30°C (87°F). However, June tends to be slightly warmer on average at 23°C (73°F) compared to September's 22°C (72°F). Both months experience significant rainfall, with September receiving 148 mm (5.8 in) over 20 days and June having a slightly lower precipitation level of 141 mm (5.5 in) over 18 days. Notably, June also has higher humidity at 85%, contrasting with September's 69%. For more detailed information on June weather, you can visit Cali weather in June.

In comparing the weather of September and July, both months experience similar temperature ranges, with July averaging slightly higher at 23°C (73°F) compared to September's 22°C (72°F). Both months see minimum temperatures around 16°C (61°F) and maximums hitting 30°C (86°F). However, September tends to be wetter, accumulating 148 mm (5.8 in) of precipitation over 20 days, whereas July receives 133 mm (5.2 in) over 16 days. Additionally, July has a higher average humidity at 75%, compared to September's 69%. For more detailed information, you can check Cali weather in July.

In comparing the weather between August and September, it's notable that September experiences a slightly lower average temperature of 22°C (72°F) compared to August's 23°C (73°F). Both months have similar minimum and maximum temperatures, with highs reaching 30°C (86°F) in September and 30°C (87°F) in August. However, September sees an increase in precipitation, totaling 148 mm (5.8 in) over 20 days, while August experiences 162 mm (6.4 in) over just 15 days. Humidity levels are also slightly higher in September at 69%, compared to August's 64%. For a more detailed look at the weather in August, you can visit Cali weather in August.

In comparing the weather of September and October, we see that both months maintain a similar average temperature of 22°C (72°F), but October experiences slightly cooler maximum temperatures with highs reaching 29°C (85°F) compared to September's 30°C (86°F). However, October is significantly wetter, with 302 mm (11.9 in) of precipitation over 26 days, contrasting sharply with September's 148 mm (5.8 in) over 20 days. Additionally, October has a higher humidity level at 80%, compared to September's 69%. For more specific details about weather conditions, you can check out Cali weather in October.

In September, the weather features average temperatures that range from a comfortable 16°C (61°F) at night to a warm 30°C (86°F) during the day, with an average of 22°C (72°F). However, rainfall is quite significant, with 148 mm (5.8 in) of precipitation spread over 20 days, resulting in a humidity level of 69%.

By November, temperatures remain largely consistent, with minimums at 17°C (63°F) and maximums peaking at 30°C (85°F), while the average stays at 22°C (72°F). Yet, November is much wetter, with precipitation soaring to 398 mm (15.7 in) over 28 days, leading to increased humidity levels of 85%. For more details about the weather in November, you can check out Cali weather in November.

In September, the weather tends to be warm and relatively humid, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 30°C (86°F) and an average of 22°C (72°F). However, it also sees significant rainfall, with around 148 mm (5.8 in) over approximately 20 days. In contrast, December maintains a similar temperature range, with a minimum of 16°C (62°F), average of 22°C (72°F), and a maximum of 29°C (84°F), but features considerably increased rainfall at 351 mm (13.8 in) spread over about 26 days, leading to higher humidity levels at 82%. This shift highlights December as a wetter month compared to September, making it important to consider for any outdoor activities. For more detailed insights, you can check Cali weather in December.

Compare Cali's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Cali

As September unfolds in Cali, the city experiences a distinct shift in weather compared to other months. With average temperatures hovering around a comfortable 22°C (72°F), this period is marked by increased humidity and frequent rainfall, totaling about 148 mm across an average of 20 days. This combination creates a lush and vibrant atmosphere, setting September apart from the typically drier climate other months tend to showcase. For more insights about Cali's weather patterns, visit Cali Climate.