January weather forecast
Cartagena, Colombia

January in Cartagena, Colombia is characterized by warm temperatures and a moderate level of humidity. The weather conditions do not fluctuate much from day to night with the highest sea temperature recorded at 27.8°C (82°F). It is a pleasant time to visit for those yearning for warmth, with ample daylight hours and high visibility for sightseeing. The city is often bathed in sunshine, creating an inviting atmosphere. Winds do occur but they are generally mild, providing a cool relief from the heat without causing any significant weather disturbances.

Temperature

January's advent in Cartagena, Colombia, notes a subtle adjustment in average high-temperature to a still hot 30.8°C (87.4°F) from December. The nights of January in Cartagena are characterized by an average low-temperature of 25.8°C (78.4°F), subtly descending from daytime highs.

Heat index

The heat index in January is calculated to be a very hot 38°C (100.4°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In Cartagena, the average relative humidity in January is 73%.

Rainfall

In Cartagena, during January, the rain falls for 3.7 days and regularly aggregates up to 4mm (0.16") of precipitation. Throughout the year, in Cartagena, there are 210.6 rainfall days, and 1115mm (43.9") of precipitation is accumulated.

Sea temperature

In Cartagena, the average seawater temperature in January is 27.8°C (82°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.

Daylight

In January, the average length of the day in Cartagena is 11h and 36min.
On the first day of January in Cartagena, sunrise is at 06:19 and sunset at 17:51. On the last day of the month, sunrise is at 06:24 and sunset at 18:05 -05.

Sunshine

In January, the average sunshine in Cartagena is 8.6h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Cartagena. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Cartagena. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 7 in January leads to these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Note! The Sun's UV radiation gets intensified with the reflection from sand and water.