Weather in Cartagena in September 2025
- September is usually the coldest month of the year in Cartagena;
Average weather
Average temperature in Cartagena in September
The temperature in September is +90°F on average, with a range between a maximum of +93°F during the day and a minimum of +77°F at night.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +91°F to +91°F.
Is Cartagena warm or cold in September?
Cartagena is typically warm in September.
Maximum temperatures go down compared to the previous month from +88°F to +86°F. The minimum temperature also goes up from +79°F to +79°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is the coldest month in Cartagena, here is the comparison with other months:
Climate in Cartagena in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +88°F | +86°F | +86°F | ||||
| Min. temperature | ||||||
| +75°F | +73°F | +73°F | ||||
| Max. temperature | ||||||
| +99°F | +95°F | +93°F | ||||
| Rainfall | ||||||
| 170 mm | 185 mm | 244 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 1 m/s | ||||
| Humidity | ||||||
| 86% | 87% | 87% | ||||
| Air pressure | ||||||
| 1009 HPa | 1009 HPa | 1009 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 1 | 0 | 0 | ||||
| Rainy days | ||||||
| 23 | 22 | 24 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting colder in September. From +88°F in the day, the average maximum temperature lowers to +86°F. Prepare for more rain. Average rainfall goes from 170 mm to 185 mm. Humidity rises from 86% to 87%. The average wind speed doesn’t change much during September, staying around 2 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Cartagena is gradually decreasing during September, going from 3 m/s to 2 m/s over the course of the month.
Rain
How was the weather last September in Cartagena?
Climate Change Over the Years
The climate in Cartagena in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1984 (+85°F) and the highest in 2015 (+90°F). The driest year was 1982 with only 834 mm of rainfall, and the wettest year was 2010 with 1981 mm.
FAQ
Is September a good time to visit Cartagena?
Can you sunbathe in Cartagena in September?
Is Cartagena rainy in September?
Is it sunny in Cartagena in September?
Other cities in Colombia
Monthly weather in Cartagena
Source of the data
For this page, we’ve looked at the typical weather in Cartagena, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.