July weather forecast
Cartagena, Colombia

July in Cartagena sees a mild decrease in rainfall, while temperatures and humidity remain high. The rainy season continues with significant precipitation but pullbacks a little to 93mm (3.66"). Consistent sea temperatures promote beach activities and water sports. The days offer plentiful sunshine hours, despite a slight increase in cloud cover. The wind speeds remain moderate, adding to the comfortable weather conditions.

Temperature

February, June and July are the warmest months in Cartagena, with an average high-temperature of 31.1°C (88°F).

Heat index

July's heat index is calculated to be a scorching 40°C (104°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in July in Cartagena is 77%.

Rainfall

In July, in Cartagena, Colombia, the rain falls for 20.4 days. Throughout July, 93mm (3.66") of precipitation is accumulated. Throughout the year, in Cartagena, Colombia, there are 210.6 rainfall days, and 1115mm (43.9") of precipitation is accumulated.

Sea temperature

In July, the average sea temperature in Cartagena is 29.5°C (85.1°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 July, the average length of the day is 12h and 40min.
On the first day of July, sunrise is at 05:44 and sunset at 18:27. On the last day of the month, sunrise is at 05:50 and sunset at 18:25 -05.

Sunshine

The average sunshine in July is 11.1h.

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 risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 7 during July leads to these advisories:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.