Cartagena weather in September
September is one of the least pleasant months in Cartagena: highs of 29°C (85°F) and about 182 mm (7.2 in) of rain on average. Nights average 27°C (81°F) and cloud cover 81% (NASA POWER, 2001–2025 averages). It is the 2nd wettest month of the year and the 5th coolest. Compared with August, it is about as warm and about as wet; October brings highs of 29°C (84°F) and 242 mm (9.5 in) of rain.
Is September a good time to visit Cartagena?
least pleasant month Weather score 53/100.
September is one of the least pleasant months for weather in Cartagena. For better conditions, consider Dec–Mar.
Does it rain a lot in Cartagena in September?
Yes, it is one of the rainy months: about 182 mm (7.2 in) falls in an average September. It is the 2nd wettest month of the year.
How warm is Cartagena in September?
Days average 29°C (85°F) and nights 27°C (81°F).
Cartagena weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 29°C (85°F) | 25°C (78°F) | 2 mm | 37% | best |
| February | 30°C (86°F) | 25°C (78°F) | 3 mm | 41% | best |
| March | 30°C (86°F) | 26°C (78°F) | 10 mm | 54% | best |
| April | 30°C (86°F) | 26°C (79°F) | 60 mm | 68% | fair |
| May | 30°C (85°F) | 27°C (81°F) | 178 mm | 79% | least pleasant |
| June | 30°C (86°F) | 27°C (81°F) | 135 mm | 75% | fair |
| July | 30°C (86°F) | 27°C (81°F) | 160 mm | 74% | fair |
| August | 30°C (86°F) | 27°C (81°F) | 160 mm | 79% | fair |
| September | 29°C (85°F) | 27°C (81°F) | 182 mm | 81% | least pleasant |
| October | 29°C (84°F) | 27°C (81°F) | 242 mm | 82% | least pleasant |
| November | 29°C (84°F) | 27°C (81°F) | 181 mm | 69% | least pleasant |
| December | 29°C (85°F) | 26°C (79°F) | 56 mm | 44% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months