Average Weather in July in Cartagena Colombia
Daily high temperatures are around 88°F, rarely falling below 85°F or exceeding 91°F.
Daily low temperatures are around 79°F, rarely falling below 76°F or exceeding 81°F. The lowest daily average low temperature is 79°F on July 15.
For reference, on June 17, the hottest day of the year, temperatures in Cartagena typically range from 79°F to 88°F, while on January 17, the coldest day of the year, they range from 76°F to 87°F.
Average High and Low Temperature in July
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in July
The month of July in Cartagena experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 93% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 93% on July 17.
The clearest day of the month is July 17, with clear, mostly clear, or partly cloudy conditions 7% of the time.
For reference, on September 16, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 95%, while on January 13, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 53%.
Cloud Cover Categories in July
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Cartagena, the chance of a wet day over the course of July is essentially constant, remaining around 34% throughout.
For reference, the year's highest daily chance of a wet day is 54% on October 21, and its lowest chance is 1% on January 20.
Probability of Precipitation in July
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during July in Cartagena is essentially constant, remaining about 3.5 inches throughout, and rarely exceeding 7.7 inches or falling below 0.4 inches.
Average Monthly Rainfall in July
Over the course of July in Cartagena, the length of the day is essentially constant. The shortest day of the month is July 31, with 12 hours, 34 minutes of daylight and the longest day is July 1, with 12 hours, 43 minutes of daylight.
Hours of Daylight and Twilight in July
The earliest sunrise of the month in Cartagena is 5:44 AM on July 1 and the latest sunrise is 7 minutes later at 5:51 AM on July 31.
The latest sunset is 6:28 PM on July 10 and the earliest sunset is 2 minutes, 43 seconds earlier at 6:25 PM on July 31.
Daylight saving time is not observed in Cartagena during 2020.
For reference, on June 20, the longest day of the year, the Sun rises at 5:41 AM and sets 12 hours, 44 minutes later, at 6:25 PM, while on December 21, the shortest day of the year, it rises at 6:14 AM and sets 11 hours, 31 minutes later, at 5:46 PM.
Sunrise & Sunset with Twilight in July
We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.
The chance that a given day will be muggy in Cartagena is essentially constant during July, remaining around 100% throughout.
For reference, on March 30, the muggiest day of the year, there are muggy conditions 100% of the time, while on February 1, the least muggy day of the year, there are muggy conditions 100% of the time.
Humidity Comfort Levels in July
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.
The average hourly wind speed in Cartagena is essentially constant during July, remaining within 0.1 miles per hour of 7.8 miles per hour throughout.
For reference, on February 26, the windiest day of the year, the daily average wind speed is 14.2 miles per hour, while on October 1, the calmest day of the year, the daily average wind speed is 6.4 miles per hour.
The highest daily average wind speed during July is 7.9 miles per hour on July 17.
Average Wind Speed in July
The hourly average wind direction in Cartagena throughout July is predominantly from the north, with a peak proportion of 52% on July 23.
Wind Direction in July
Cartagena is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Cartagena is essentially constant during July, remaining around 84°F throughout.
Average Water Temperature in July
Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).
Temperatures in Cartagena are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.
Time Spent in Various Temperature Bands and the Growing Season in July
Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.
The average accumulated growing degree days in Cartagena are very rapidly increasing during July, increasing by 972°F, from 5,724°F to 6,696°F, over the course of the month.
Growing Degree Days in July
This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.
The average daily incident shortwave solar energy in Cartagena is essentially constant during July, remaining within 0.1 kWh of 3.7 kWh throughout.
The highest average daily incident shortwave solar energy during July is 3.8 kWh on July 17.
Average Daily Incident Shortwave Solar Energy in July
For the purposes of this report, the geographical coordinates of Cartagena are 10.400 deg latitude, -75.514 deg longitude, and 13 ft elevation.
The topography within 2 miles of Cartagena contains significant variations in elevation, with a maximum elevation change of 515 feet and an average elevation above sea level of 31 feet. Within 10 miles contains significant variations in elevation (850 feet). Within 50 miles contains very significant variations in elevation (2,769 feet).
The area within 2 miles of Cartagena is covered by grassland (49%), water (31%), and trees (10%), within 10 miles by water (51%) and grassland (22%), and within 50 miles by water (62%) and grassland (17%).
This report illustrates the typical weather in Cartagena year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There is only a single weather station, Aeropuerto Internacional de Crespo, in our network suitable to be used as a proxy for the historical temperature and dew point records of Cartagena.
At a distance of 5 kilometers from Cartagena, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Cartagena according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.