July weather forecast
Cartagena, Spain

By July, the scorching summer firmly roots itself in Cartagena. The weather data reveals the highest average temperatures of the year, ranging from 23.5°C (74.3°F) to 27.3°C (81.1°F). Meanwhile, rainfall reaches an annual low, with a measly 3mm (0.12") precipitation over an average of 2.3 days giving very few relief. Sea temperatures peak at a warm 24.8°C (76.6°F), matching well with the dry, sunny climate. As far as Cartagena's weather patterns go, July is the pinnacle of consistent summer heat and predictable sunny conditions.

Temperature

As July takes hold in Cartagena, Spain, the average high-temperature is a still warm 27.3°C (81.1°F), nearly mirroring that of the previous month. Cartagena's July nights observe a minor shift from the daytime temperatures, resulting in an average dip to a still moderately hot 23.5°C (74.3°F).

Heat index

July's heat index is appraised at 29°C (84.2°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

In July, the average relative humidity is 71%.

Rainfall

The month with the least rainfall in Cartagena is July, when the rain falls for 2.3 days and typically collects 3mm (0.12") of precipitation.

Sea temperature

In Cartagena, in July, the average water temperature is 24.8°C (76.6°F).
Note: A swim in 24.8°C (76.6°F) waters can be refreshing, especially when factoring in a person's cold tolerance, sunshine, wind, and the overall temperature. As a point of reference, Olympic swimming events are held in 25°C (77°F) to 28°C (82.4°F) waters.

Daylight

The average length of the day in July is 14h and 28min.
On the first day of the month, sunrise is at 06:46 and sunset at 21:29. On the last day of July, sunrise is at 07:07 and sunset at 21:13 CEST.

Sunshine

In July, the average sunshine is 11.4h.

UV index

July and August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 7 in July interprets into the following advice:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.