The highest day temperature in July 2025 was 92°F. The lowest night temperature was 76°F. The average values for day and night temperatures during July were 87.7°F и 78.9°F respectivly.

The average sea surface temperature in July 2025 for Cartagena was 84.2°F. The maximum and minimum values were 82.4°F and 85.6°F respectively.

Most of the days in July are sunny but you can also expect cloudy and gloomy days.

Precipitation total in July for Cartagena is 0.2 in. It makes july the least rainy month of the year.

The average wind speed in July is 8.8 mph. It makes July one of the most windless months of the year for Cartagena.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Cartagena in July is 13.1 hours.