Cali weather in September
In September, Cali has an average high of 31 °C87 °F and an average low of 20 °C68 °F, with about 52 mm2.1 in of precipitation. It is the 3rd warmest month of the year and ranks 10th for precipitation.
How September compares with other months
Compared with August, September is about the same temperature and wetter by 15 mm0.6 in. Compared with October, September is about the same temperature and drier by 73 mm2.9 in. Daylight lasts about 12.1 hours around the middle of the month. Average relative humidity is 79% and the average cloud amount 82%.
Is September a good time to visit Cali?
Yes — September is one of the most comfortable months to visit Cali by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in September
For Cali in September, pack very light, breathable clothing, a sun hat and plenty of water.
September in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Cali | 3187 | 2068 | 522.1 |
| Buenaventura | 3188 | 2476 | 742.9 |
| Guadalajara de Buga | 2883 | 1865 | 813.2 |
| Buenaventura | 3086 | 2475 | 1084.2 |
| Tuluá | 2883 | 1965 | 813.2 |
| Popayán | 2475 | 1356 | 441.7 |
| Neiva | 3391 | 2271 | 592.3 |
| Armenia | 2578 | 1661 | 1094.3 |
| Pereira | 2577 | 1660 | 1505.9 |
Nearby places that are more than 1 °C1.8 °F warmer in September: Buenaventura, Buenaventura and Neiva; cooler: Guadalajara de Buga, Tuluá, Popayán and Armenia.
Other months in Cali
- January30 °C85 °F / 21 °C69 °F
- February30 °C86 °F / 21 °C70 °F
- March30 °C85 °F / 21 °C70 °F
- April29 °C85 °F / 21 °C70 °F
- May29 °C85 °F / 21 °C70 °F
- June30 °C85 °F / 20 °C68 °F
- July30 °C86 °F / 20 °C68 °F
- August31 °C87 °F / 20 °C68 °F
- September31 °C87 °F / 20 °C68 °F
- October29 °C85 °F / 21 °C69 °F
- November29 °C84 °F / 21 °C69 °F
- December29 °C84 °F / 21 °C69 °F
Frequently asked questions
How warm is Cali in September?
In September the average high in Cali is 31 °C (87 °F) and the average low is 20 °C (68 °F).
Does it rain a lot in Cali in September?
On average about 52 mm (2.1 in) of precipitation falls in September; it ranks 10th of the 12 months.
Is September the warmest month in Cali?
Yes. September is the warmest month in Cali. The coldest month is July, with an average low of 20 °C (68 °F).
How long is the day in Cali in September?
In the middle of September the day in Cali lasts about 12.1 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Cali in September?
The average relative humidity in September is about 79%. Combined with warm days, it can feel muggy.
How cloudy is Cali in September?
On average about 82% of the sky is covered by cloud in September. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 2,112 m, while Cali lies at about 758 m. Temperatures on this page were therefore adjusted by +8.8 °C15.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.