Average Weather in San Martín Colombia
The climate in San Martín is hot, oppressive, and overcast. Over the course of the year, the temperature typically varies from 75°F to 91°F and is rarely below 72°F or above 96°F.
Based on the beach/pool score, the best time of year to visit San Martín for hot-weather activities is from mid December to late February.
The temperature in San Martín varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.
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 Martín, 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 Martín begins around December 9 and lasts for 3.3 months, ending around March 18. On January 13, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 32% of the time, and overcast or mostly cloudy 68% of the time.
The cloudier part of the year begins around March 18 and lasts for 8.7 months, ending around December 9. On May 6, the cloudiest day of the year, the sky is overcast or mostly cloudy 94% of the time, and clear, mostly clear, or partly cloudy 6% 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 Martín varies significantly throughout the year.
The wetter season lasts 8.2 months, from March 30 to December 4, with a greater than 35% chance of a given day being a wet day. The chance of a wet day peaks at 57% on October 5.
The drier season lasts 3.8 months, from December 4 to March 30. The smallest chance of a wet day is 13% on January 20.
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 57% on October 5.
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 Martín experiences extreme seasonal variation in monthly rainfall.
Rain falls throughout the year in San Martín. The most rain falls during the 31 days centered around October 12, with an average total accumulation of 5.4 inches.
The least rain falls around January 13, with an average total accumulation of 1.0 inches.
Average Monthly Rainfall
The length of the day in San Martín does not vary substantially over the course of the year, staying within 35 minutes of 12 hours throughout. In 2018, the shortest day is December 21, with 11 hours, 40 minutes of daylight; the longest day is June 21, with 12 hours, 35 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:34 AM on May 26, and the latest sunrise is 39 minutes later at 6:14 AM on January 29. The earliest sunset is at 5:31 PM on November 14, and the latest sunset is 45 minutes later at 6:16 PM on July 13.
Daylight saving time (DST) is not observed in San Martín during 2018.
Sunrise & Sunset with Twilight
The perceived humidity level in San Martín, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 2% of 97% throughout.
Humidity Comfort Levels
The average hourly wind speed in San Martín experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 3.8 months, from December 11 to April 3, with average wind speeds of more than 2.8 miles per hour. The windiest day of the year is February 7, with an average hourly wind speed of 3.7 miles per hour.
The calmer time of year lasts for 8.2 months, from April 3 to December 11. The calmest day of the year is September 26, with an average hourly wind speed of 1.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in San Martín varies throughout the year.
The wind is most often from the north for 1.9 weeks, from October 19 to November 1, with a peak percentage of 41% on October 31. The wind is most often from the east for 12 months, from November 1 to October 19, with a peak percentage of 75% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in San Martín throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit San Martín for general outdoor tourist activities is from mid December to late February, with a peak score in the second week of January.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit San Martín for hot-weather activities is from mid December to late February, with a peak score in the second week of January.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
Temperatures in San Martín 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
Growing Degree Days
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 2.5 months, from January 8 to March 24, with an average daily incident shortwave energy per square meter above 5.5 kWh. The brightest day of the year is February 26, with an average of 5.9 kWh.
The darker period of the year lasts for 2.3 months, from September 23 to December 1, 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 4.2 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of San Martín are 8.002 deg latitude, -73.511 deg longitude, and 335 ft elevation.
The topography within 2 miles of San Martín contains only modest variations in elevation, with a maximum elevation change of 180 feet and an average elevation above sea level of 337 feet. Within 10 miles contains only modest variations in elevation (4,318 feet). Within 50 miles also contains extreme variations in elevation (13,068 feet).
The area within 2 miles of San Martín is covered by trees (49%), grassland (20%), cropland (16%), and shrubs (14%), within 10 miles by trees (43%) and grassland (24%), and within 50 miles by trees (56%) and grassland (21%).
This report illustrates the typical weather in San Martín, 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 are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in San Martín.
For each station, the records are corrected for the elevation difference between that station and San Martín according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at San Martín is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between San Martín and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .