Colombia (Cartagena)
September
Weather in Colombia for September 2025
Your guide to Colombia weather in September - trends and predictions
Until now, September 2025 in Colombia is slightly cooler than the historical average by -1.2 °C.
The forecast for the next days in Colombia predicts temperatures to be around 28 °C, close to the historical average.
In general, the average temperature in Colombia at the beginning of September is 29 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 28.9 °C by the end of September.
Colombia experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 369.4 mm.
Temperatures
Rain 🌧️
0
Dry days
30
Rainy days
0
Snow days
29°/26°
Temperatures
17 km/h
Avg max wind
79 %
Avg humidity
Colombia Weather September
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What’s the Weather Like in Colombia This September?
Discover the average temperatures and weather trends across Colombia’s cities this September.
Temperatures trend during September in Colombia
See the weather trend as well as the moving average line
September weather in Colombia day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Partly cloudy | 29° /25° | 9 mm | 7 | |
| 2 Sept. |  Light rain shower | 29° /26° | 12.4 mm | 6 | |
| 3 Sept. |  Patchy light rain with thunder | 29° /26° | 17.4 mm | 6 | |
| 4 Sept. | Light rain shower | 29° /26° | 15.6 mm | 6 | |
| 5 Sept. | Light rain shower | 29° /25° | 8.4 mm | 6 | |
| 6 Sept. | Patchy light rain with thunder | 29° /25° | 10.8 mm | 6 | |
| 7 Sept. | Light rain shower | 29° /26° | 9.9 mm | 6 | |
| 8 Sept. | Patchy light rain with thunder | 28° /26° | 7.7 mm | 6 | |
| 9 Sept. |  Moderate or heavy rain shower | 29° /26° | 6.1 mm | 6 | |
| 10 Sept. |  Torrential rain shower | 29° /26° | 15.7 mm | 6 | |
| 11 Sept. | Patchy rain possible | 30° /26° | 11.4 mm | 6 | |
| 12 Sept. | Light rain shower | 29° /26° | 12.5 mm | 6 | |
| 13 Sept. | Light rain shower | 29° /26° | 14.4 mm | 6 | |
| 14 Sept. | Moderate or heavy rain shower | 30° /26° | 11.3 mm | 6 | |
| 15 Sept. | Moderate or heavy rain shower | 30° /26° | 21.1 mm | 7 | |
| 16 Sept. |  Moderate rain | 29° /27° | 8.4 mm | 2.4 | |
| 17 Sept. | Moderate rain | 28° /27° | 6 mm | 2.4 | |
| 18 Sept. | Heavy rain | 27° /26° | 22.4 mm | 0.6 | |
| 19 Sept. | Moderate rain | 28° /26° | 15.2 mm | 0.1 | |
| 20 Sept. | Moderate rain | 26° /25° | 7.4 mm | 6 | |
| 21 Sept. | Patchy rain possible | 28° /25° | 1.6 mm | 6 | |
| 22 Sept. | Patchy rain possible | 29° /25° | 0.6 mm | 6 | |
| 23 Sept. | Patchy rain possible | 29° /27° | 1.4 mm | 6 | |
| 24 Sept. | Patchy rain possible | 30° /27° | 0.2 mm | 6 | |
| 25 Sept. | Moderate rain | 28° /27° | 5.3 mm | 6 | |
| 26 Sept. | Patchy rain possible | 29° /27° | 1.3 mm | 6 | |
| 27 Sept. | Patchy rain possible | 29° /26° | 1.9 mm | 6 | |
| 28 Sept. | Moderate rain | 29° /27° | 6 mm | 6 | |
| 29 Sept. | Moderate rain at times | 29° /25° | 24.9 mm | 6 | |
| 30 Sept. | Moderate or heavy rain shower | 28° /25° | 6.8 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Colombia in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Colombia forecast closer to your planned date for the most up-to-date weather information.
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Colombia in September - FAQ
What are the expected maximum and minimum temperatures in Colombia during September?
During September, expect a variety of temperatures with highs around 29° and lows near 26°, suitable for diverse activities and preferences.
How much rainfall should be expected in Colombia during September?
Significant rainfall exceeding 369.4 mm is expected in Colombia during September, occurring over more than 30 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Colombia during September?
The average wind speed in Colombia during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
Colombia water temperatures in September
The average water temperature of the Caribbean Sea near Colombia in September is 28.7 °C. Temperatures remain fairly consistent throughout the month.
- What is the water temperature in Colombia in September?
- The average water temperature in Colombia in September is 28.7 °C.
- Can you swim in Colombia in September?
- The sea feels almost bath-like – perfect for floating, paddle-boarding or spending hours snorkeling without a wetsuit.
September rainfall patterns in Colombia
Explore the daily rainfall trends and prepare for Colombias September weather 💧
UV exposure in Colombia during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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