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May Weather in San Andrés Colombia

Daily high temperatures are around 85°F, rarely falling below 83°F or exceeding 88°F.

Daily low temperatures are around 80°F, rarely falling below 77°F or exceeding 82°F.

For reference, on September 11, the hottest day of the year, temperatures in San Andrés typically range from 80°F to 86°F, while on February 18, the coldest day of the year, they range from 78°F to 83°F.

Average High and Low Temperature in May in San Andrés

Average High and Low Temperature in May in San AndrésMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313176°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°F92°F92°F94°F94°F96°F96°F98°F98°F100°F100°FAprJunMay 185°FMay 185°F80°F80°FMay 3186°FMay 3186°F80°F80°FMay 1185°FMay 1185°F80°F80°FMay 2185°FMay 2185°F80°F80°F
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. 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 May in San Andrés

Average Hourly Temperature in May in San AndrésMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAprJunwarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Vailoatai, American Samoa (6,379 miles away); Casuguran, Philippines (9,943 miles); and Pandan, Philippines (10,089 miles) are the far-away foreign places with temperatures most similar to San Andrés (view comparison).

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The month of May in San Andrés experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 75% to 90%.

The clearest day of the month is May 1, with clear, mostly clear, or partly cloudy conditions 25% of the time.

For reference, on June 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 91%, while on January 4, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 69%.

Cloud Cover Categories in May in San Andrés

Cloud Cover Categories in May in San AndrésMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJunMay 125%May 125%May 319%May 319%May 1119%May 1119%May 2113%May 2113%clearmostly cloudyovercastmostly clear
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In San Andrés, the chance of a wet day over the course of May is very rapidly increasing, starting the month at 15% and ending it at 54%.

For reference, the year's highest daily chance of a wet day is 68% on October 7, and its lowest chance is 0% on March 21.

Probability of Precipitation in May in San Andrés

The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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 May in San Andrés is very rapidly increasing, starting the month at 1.1 inches, when it rarely exceeds 2.3 inches or falls below 0.2 inches, and ending the month at 4.4 inches, when it rarely exceeds 7.4 inches or falls below 1.8 inches.

Average Monthly Rainfall in May in San Andrés

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of May in San Andrés, the length of the day is essentially constant. The shortest day of the month is May 1, with 12 hours, 35 minutes of daylight and the longest day is May 31, with 12 hours, 49 minutes of daylight.

Hours of Daylight and Twilight in May in San Andrés

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The latest sunrise of the month in San Andrés is 6:06 AM on May 1 and the earliest sunrise is 6 minutes earlier at 6:00 AM on May 31.

The earliest sunset is 6:41 PM on May 1 and the latest sunset is 8 minutes later at 6:49 PM on May 31.

Daylight saving time is not observed in San Andrés during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:02 AM and sets 12 hours, 52 minutes later, at 6:54 PM, while on December 21, the shortest day of the year, it rises at 6:43 AM and sets 11 hours, 23 minutes later, at 6:06 PM.

Sunrise & Sunset with Twilight in May in San Andrés

The solar day over the course of May. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in May in San Andrés

Solar Elevation and Azimuth in May in San AndrésMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMAprJun00101020202030304040505050606070708080000101020203030304040505060606070708080
northeastsouthwest
Solar elevation and azimuth over the course of May 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for May 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in May in San Andrés

Moon Rise, Set & Phases in May in San AndrésMay112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAprJunApr 81:22 PMApr 81:22 PMApr 236:50 PMApr 236:50 PMMay 710:23 PMMay 710:23 PMMay 238:54 AMMay 238:54 AMJun 67:38 AMJun 67:38 AMJun 218:09 PMJun 218:09 PM6:07 AM6:07 AM6:47 PM6:47 PM6:35 PM6:35 PM6:27 AM6:27 AM5:28 AM5:28 AM6:28 PM6:28 PM6:11 PM6:11 PM5:51 AM5:51 AM5:53 AM5:53 AM7:18 PM7:18 PM6:53 PM6:53 PM6:26 AM6:26 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
May 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
50%12:58 AMESE12:43 PMWSW-6:51 AMS232,121 mi
2
38%1:47 AMESE1:41 PMWSW-7:45 AMS229,797 mi
3
27%2:32 AMESE2:38 PMW-8:35 AMS227,816 mi
4
17%3:15 AME3:34 PMW-9:24 AMS226,382 mi
5
9%3:58 AME4:31 PMW-10:13 AMS225,695 mi
6
3%4:42 AME5:28 PMWNW-11:03 AMS225,911 mi
7
0%5:28 AMENE6:28 PMWNW-11:56 AMN227,099 mi
8
1%6:17 AMENE7:31 PMWNW-12:52 PMN229,220 mi
9
4%7:11 AMENE8:33 PMWNW-1:51 PMN232,118 mi
10
9%8:08 AMENE9:35 PMWNW-2:51 PMN235,540 mi
11
17%9:07 AMENE10:33 PMWNW-3:50 PMN239,175 mi
12
26%10:05 AMENE11:25 PMWNW-4:46 PMN242,706 mi
13
35%11:01 AMENE--5:38 PMN245,856 mi
14
45%-12:11 AMWNW11:53 AMENE6:25 PMN248,407 mi
15
50%-12:53 AMWNW12:43 PMENE7:08 PMN250,216 mi
16
65%-1:31 AMWNW1:29 PME7:49 PMS251,216 mi
17
73%-2:06 AMW2:14 PME8:27 PMS251,404 mi
18
82%-2:39 AMW2:58 PME9:06 PMS250,841 mi
19
89%-3:13 AMW3:43 PME9:45 PMS249,631 mi
20
94%-3:48 AMW4:29 PMESE10:27 PMS247,913 mi
21
98%-4:25 AMWSW5:18 PMESE11:11 PMS245,841 mi
22
99%-5:05 AMWSW6:11 PMESE--
23
100%-5:51 AMWSW7:06 PMESE12:00 AMS243,570 mi
24
100%-6:41 AMWSW8:05 PMESE12:53 AMS241,243 mi
25
97%-7:37 AMWSW9:04 PMESE1:51 AMS238,975 mi
26
92%-8:36 AMWSW10:01 PMESE2:50 AMS236,848 mi
27
84%-9:37 AMWSW10:55 PMESE3:50 AMS234,910 mi
28
75%-10:38 AMWSW11:44 PMESE4:47 AMS233,181 mi
29
65%-11:36 AMWSW-5:41 AMS231,677 mi
30
50%12:30 AMESE12:32 PMW-6:32 AMS230,419 mi
31
41%1:13 AME1:27 PMW-7:20 AMS229,458 mi

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 San Andrés is essentially constant during May, remaining around 100% throughout.

For reference, on April 4, the muggiest day of the year, there are muggy conditions 100% of the time, while on February 26, the least muggy day of the year, there are muggy conditions 100% of the time.

Humidity Comfort Levels in May in San Andrés

Humidity Comfort Levels in May in San AndrésMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AprJunMay 1100%May 1100%May 31100%May 31100%May 11100%May 11100%May 21100%May 21100%miserablemiserableoppressiveoppressive
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 Andrés is decreasing during May, decreasing from 14.3 miles per hour to 13.1 miles per hour over the course of the month.

For reference, on January 3, the windiest day of the year, the daily average wind speed is 18.2 miles per hour, while on October 1, the calmest day of the year, the daily average wind speed is 10.5 miles per hour.

The lowest daily average wind speed during May is 13.1 miles per hour on May 31.

Average Wind Speed in May in San Andrés

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in San Andrés throughout May is predominantly from the east, with a peak proportion of 86% on May 31.

Wind Direction in May in San Andrés

Wind Direction in May in San AndrésMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%AprJuneastnorthsouth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

San Andrés 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 San Andrés is essentially constant during May, remaining around 82°F throughout.

Average Water Temperature in May in San Andrés

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 San Andrés 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 May in San Andrés

Time Spent in Various Temperature Bands and the Growing Season in May in San AndrésMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AprJun100%May 16100%May 16warmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

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 San Andrés are very rapidly increasing during May, increasing by 976°F, from 3,704°F to 4,680°F, over the course of the month.

Growing Degree Days in May in San Andrés

The average growing degree days accumulated over the course of May, with 25th to 75th and 10th to 90th percentile bands.

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 San Andrés is rapidly decreasing during May, falling by 1.8 kWh, from 6.3 kWh to 4.5 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in May in San Andrés

Average Daily Incident Shortwave Solar Energy in May in San AndrésMay11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhAprJunMay 16.3 kWhMay 16.3 kWhMay 314.5 kWhMay 314.5 kWhMay 115.8 kWhMay 115.8 kWhMay 215.2 kWhMay 215.2 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of San Andrés are 12.585 deg latitude, -81.701 deg longitude, and 10 ft elevation.

The topography within 2 miles of San Andrés contains only modest variations in elevation, with a maximum elevation change of 302 feet and an average elevation above sea level of 13 feet. Within 10 miles also contains only modest variations in elevation (348 feet). Within 50 miles also contains only modest variations in elevation (328 feet).

The area within 2 miles of San Andrés is covered by water (82%), within 10 miles by water (98%), and within 50 miles by water (100%).

This report illustrates the typical weather in San Andrés, 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, Gustavo Rojas Pinilla International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of San Andrés.

At a distance of 1 kilometer from San Andrés, 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 San Andrés 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.

Other Data

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 airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

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.

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