Cartagena Weather in September
In Cartagena, September brings very high daytime temperatures around 31°C (88°F), with nights cooling to 26°C (79°F). This month falls within the rainy season, so expect frequent rainfall.
Rainfall in Cartagena in September
As part of the rainy season, Cartagena sees around 14 days of rain in September, with an average of 213 mm (8.4 in). The rain this month falls heavily when it arrives. Late afternoons in particular can see strong showers, so waterproofs are worth keeping handy.
Temperature in Cartagena in September
In September, expect very high temperatures in Cartagena, with highs of 31°C (88°F) and lows of 26°C (79°F) at night. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. Nights stay warm at around 26°C (79°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Cartagena in September
The area experiences a moderate amount of sunshine, with approximately 173 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.September in Cartagena can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Colombia, check out our Cartagena's climate page.
Cartagena Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
46%
Precipitation
213 mm (8.4 in)
Rainy days
14 days
Humidity
82%
Sunshine
173 hours
Percentage Sunshine
47%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cartagena typically stay consistent throughout September, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in September
Historical weather for Cartagena in September
Browse day-by-day weather records for Cartagena spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cartagena historical weather extremes in September
Our historical data for Cartagena spans 1995 to 2025, revealing these weather extremes.
- The hottest September day on record in Cartagena reached 37°C (99°F) (September 29, 2014).
- The lowest daytime temperature in September was 26°C (79°F), recorded on September 26, 1999.
- Cartagena registered its coldest September night on September 20, 2022, with temperatures dropping to 18°C (64°F).
Best Places in Colombia in September
Find out more about the weather in Colombia and which places have the best travel conditions in this month. See all of Colombia in September →
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What to Wear in Cartagena in September
Warm but pleasant conditions in Cartagena in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Cartagena in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Colombia, check out our Cartagena's climate page.
Temperature Rainfall Sunshine Humidity
See the full Cartagena climate overview or explore weather in Colombia.
