Average Weather in San Diego Colombia
The climate in San Diego is hot, muggy, and overcast. Over the course of the year, the temperature typically varies from 73°F to 96°F and is rarely below 70°F or above 101°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, 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 San Diego, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in San Diego begins around December 14 and lasts for 3.4 months, ending around March 25. On January 15, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 42% of the time, and overcast or mostly cloudy 58% of the time.
The cloudier part of the year begins around March 25 and lasts for 8.6 months, ending around December 14. On May 15, the cloudiest day of the year, the sky is overcast or mostly cloudy 93% of the time, and clear, mostly clear, or partly cloudy 7% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in San Diego varies significantly throughout the year.
The wetter season lasts 7.1 months, from April 17 to November 21, with a greater than 22% chance of a given day being a wet day. The chance of a wet day peaks at 42% on October 19.
The drier season lasts 4.9 months, from November 21 to April 17. The smallest chance of a wet day is 1% on January 15.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 42% on October 19.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. San Diego experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.3 months, from March 18 to December 26, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around October 18, with an average total accumulation of 3.9 inches.
The rainless period of the year lasts for 2.7 months, from December 26 to March 18. The least rain falls around January 26, with an average total accumulation of 0.1 inches.
Average Monthly Rainfall
The length of the day in San Diego does not vary substantially over the course of the year, staying within 43 minutes of 12 hours throughout. In 2017, the shortest day is December 21, with 11 hours, 31 minutes of daylight; the longest day is June 20, with 12 hours, 44 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:29 AM on May 29, and the latest sunrise is 46 minutes later at 6:15 AM on January 27. The earliest sunset is at 5:26 PM on November 16, and the latest sunset is 52 minutes later at 6:18 PM on July 12.
Daylight saving time (DST) is not observed in San Diego during 2017.
Sunrise & Sunset with Twilight
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.
San Diego experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 9.5 months, from March 20 to January 6, during which time the comfort level is muggy, oppressive, or miserable at least 53% of the time. The muggiest day of the year is November 7, with muggy conditions 98% of the time.
The least muggy day of the year is February 8, with muggy conditions 38% of the time.
Humidity Comfort Levels
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 San Diego experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 4.7 months, from December 3 to April 24, with average wind speeds of more than 2.2 miles per hour. The windiest day of the year is February 26, with an average hourly wind speed of 2.9 miles per hour.
The calmer time of year lasts for 7.3 months, from April 24 to December 3. The calmest day of the year is October 6, with an average hourly wind speed of 1.5 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in San Diego is from the east throughout the year.
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 experiences some seasonal variation over the course of the year.
The brighter period of the year lasts for 2.6 months, from January 15 to April 2, with an average daily incident shortwave energy per square meter above 5.7 kWh. The brightest day of the year is February 28, with an average of 6.1 kWh.
The darker period of the year lasts for 2.2 months, from September 13 to November 18, with an average daily incident shortwave energy per square meter below 4.5 kWh. The darkest day of the year is October 20, with an average of 4.1 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of San Diego are 10.336 deg latitude, -73.182 deg longitude, and 499 ft elevation.
The topography within 2 miles of San Diego contains significant variations in elevation, with a maximum elevation change of 712 feet and an average elevation above sea level of 544 feet. Within 10 miles contains significant variations in elevation (5,584 feet). Within 50 miles also contains extreme variations in elevation (18,474 feet).
The area within 2 miles of San Diego is covered by trees (33%), cropland (30%), grassland (21%), and shrubs (15%), within 10 miles by trees (44%) and grassland (23%), and within 50 miles by trees (56%) and grassland (25%).
This report illustrates the typical weather in San Diego, 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, Ernesto Cortissoz International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of San Diego.
At a distance of 185 kilometers from San Diego, further than our threshold of 150 kilometers, this station is deemed insufficiently nearby to be relied upon as our primary source for temperature and dew point records. Consequently, the station records are blended with interpolated values from NASA's MERRA-2 satellite-era reanalysis , and both are corrected for elevation differences according to the International Standard Atmosphere .
The weight assigned to the MERRA-2 value depends on the distance from San Diego to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 42%, making the weight assigned to the weather station 58%.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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.