October weather forecast
Cartagena, Colombia

October carries forward the trend of the rain-dominated months, albeit with an even further increase in precipitation. The temperature begins to decrease gradually from the peak summer months, making the weather a bit more comfortable. The sea temperature undergoes slight cooling but not enough to deter beach goers. October weather carries an air of unpredictability with it due to the blend of rainfall and sunshine hours. However, the charm of Cartagena continues to shine through the wet conditions, capturing the hearts of its visitors.

Temperature

Cartagena's lowest average temperatures are recorded in October and November, reaching a high of 29.8°C (85.6°F).

Heat index

In October, the heat index is calculated to be a very hot 37°C (98.6°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Cartagena, the average relative humidity in October is 78%.

Rainfall

The month with the most rainfall is October, when the rain falls for 28.2 days and typically aggregates up to 221mm (8.7") of precipitation.

Sea temperature

In October, the average sea temperature is 29.6°C (85.3°F).
Note: In water temperatures ranging between 25°C (77°F) and 29°C (84.2°F), activities such as swimming and diving become highly pleasurable for long durations.

Daylight

The average length of the day in October in Cartagena, Colombia, is 11h and 54min.
On the first day of October in Cartagena, sunrise is at 05:50 and sunset at 17:52. On the last day of the month, sunrise is at 05:52 and sunset at 17:38 -05.

Sunshine

The average sunshine in October in Cartagena is 8.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Cartagena. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 7 during October translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be wary! Reflections from sand and water make UV radiation more intense.