March weather forecast
Cartagena, Colombia

March brings a set of changes in weather dynamics in Cartagena. The temperatures continue their upward climb while the relative humidity oscillates around the same level as in February. The most significant characteristic of March is the notable increase in rainfall to 12mm (0.47"). It is the onset of the wet season in Cartagena so expect frequent showers. Despite the rainfall, visibility remains high, making it an acceptable month for tourism activities.

Temperature

Cartagena, Colombia, indicates an average high-temperature of a still tropical 31°C (87.8°F) in March, showing minor variation from February's 31.1°C (88°F). In March, Cartagena experiences a marginal drop in temperature, with averages of 26.1°C (79°F) at night.

Heat index

The heat index in March is calculated to be a torrid 39°C (102.2°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in March is 73%.

Rainfall

In Cartagena, during March, the rain falls for 7.7 days and regularly aggregates up to 12mm (0.47") 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 March is 27.8°C (82°F).
Note: Between the temperatures of 25°C (77°F) and 29°C (84.2°F), water is considered very warm, providing pleasure in water activities without discomfort over lengthy periods.

Daylight

In March, the average length of the day is 12h and 5min.
On the first day of the month, sunrise is at 06:15 and sunset at 18:12. On the last day of March, in Cartagena, sunrise is at 05:59 and sunset at 18:12 -05.

Sunshine

In March, the average sunshine is 9.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Cartagena. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In March, the average maximum UV index of 7 translates into the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Alert! The Sun's UV rays are heightened by the reflection of sand and water.