Cartagena
Colombia
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Cartagena, Colombia

A skyscape of the city of Cartagena, Colombia, with a close view of the Chiva Rumbera buildings
A skyscape of the city of Cartagena, Colombia, with a close view of the Chiva Rumbera buildings
The first month of the autumn, September, is also a hot month in Cartagena, Colombia, with average temperature ranging between max 31.7°C (89.1°F) and min 24.7°C (76.5°F).

Temperature

In Cartagena, the average high-temperature is essentially the same as in August - a still hot 31.7°C (89.1°F). In Cartagena, the average low-temperature is 24.7°C (76.5°F).

Rainfall

In Cartagena, in September, it is raining for 13 days, with typically 144mm (5.7") of accumulated precipitation. Throughout the year, there are 92 rainfall days, and 912.5mm (35.9") of precipitation is accumulated.

Sea temperature

In Cartagena, the average water temperature is 29.7°C (85.5°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

The average length of the day in September is 12.2h.

Sunshine

In September, the average sunshine in Cartagena is 5.9h.

UV index

Months with the highest UV index in Cartagena are February through October, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an extreme threat to health from the exposure to the Sun's UV radiation for the ordinary person.
The daily maximum UV index of 12 in September interpret into the following advice:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in September in Cartagena?

In September, in Cartagena, Colombia, the average high-temperature is 31.7°C (89.1°F), and the average low-temperature is 24.7°C (76.5°F).

How many days does it rain in September in Cartagena?

In Cartagena, Colombia, in September, during 13 rainfall days, 144mm (5.7") of precipitation is typically accumulated.

What is the sea water temperature in September in Cartagena?

In Cartagena, Colombia, the average seawater temperature in September is 29.7°C (85.5°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in September in Cartagena?

The average length of the day in September in Cartagena is 12.2h.

How long on average sun shines in September in Cartagena?

In Cartagena, Colombia, the average sunshine in September is 5.9h.

When is the highest UV index in Cartagena?

Months with the highest UV index in Cartagena, Colombia, are February through October, with an average maximum UV index of 12.

How high is the UV index in September in Cartagena?

In Cartagena, Colombia, the average daily maximum UV index in September is 12. A UV Index estimate of 11, and higher, represents an extreme health threat from the exposure to the Sun's UV radiation.
Average temperature in September - Cartagena, Colombia
  • Average high temperature in September: 31.7°C

The warmest month (with the highest average high temperature) is July (32°C).
Months with the lowest average high temperature are January and February (31°C).

  • Average low temperature in September: 24.7°C

The month with the highest average low temperature is June (25°C).
The coldest month (with the lowest average low temperature) is January (22.7°C).

Average rainfall in September - Cartagena, Colombia
  • Average rainfall in September: 144mm

The wettest month (with the highest rainfall) is October (198.3mm).
The driest month (with the lowest rainfall) is February (0.9mm).

Average rainfall days in September - Cartagena, Colombia
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is October (16 days).
The month with the lowest number of rainy days is February (0 days).

Average sea temperature in September - Cartagena, Colombia
  • Average sea temperature in September: 29.7°C

The best month for swimming (with the highest average sea temperature) is August (29.8°C).
The coldest month (with the lowest average sea temperature) is February (27.3°C).

Average daylight in September / Average sunshine in September - Cartagena, Colombia
  • Average daylight in September: 12.2h

Months with the longest days are June and July (Average daylight: 12.7h).
The month with shortest days is December (Average daylight: 11.5h).

  • Average sunshine in September: 5.9h

The month with most sunshine is January (Average sunshine: 9h).
The month with least sunshine is October (Average sunshine: 5.6h).

Average UV index in September - Cartagena, Colombia
  • Average UV index in September: 12

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).