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December Weather in Chacarita Costa Rica

Daily high temperatures increase by 2°F, from 91°F to 93°F, rarely falling below 87°F or exceeding 96°F.

Daily low temperatures are around 78°F, rarely falling below 75°F or exceeding 81°F.

For reference, on March 22, the hottest day of the year, temperatures in Chacarita typically range from 79°F to 97°F, while on October 1, the coldest day of the year, they range from 77°F to 90°F.

Average High and Low Temperature in December in Chacarita

Average High and Low Temperature in December in ChacaritaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313174°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°F92°F92°F94°F94°F96°F96°F98°F98°FNovJanDec 191°FDec 191°F78°F78°FDec 3193°FDec 3193°F78°F78°FDec 1192°FDec 1192°F78°F78°FDec 2193°FDec 2193°F78°F78°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 December. 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 December in Chacarita

Average Hourly Temperature in December in ChacaritaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJanwarmwarmhot
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.

Mandera, Kenya (8,650 miles away) is the far-away foreign place with temperatures most similar to Chacarita (view comparison).

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The month of December in Chacarita experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 55% to 33%.

The clearest day of the month is December 31, with clear, mostly clear, or partly cloudy conditions 67% of the time.

For reference, on June 4, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 94%, while on January 1, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 68%.

Cloud Cover Categories in December in Chacarita

Cloud Cover Categories in December in ChacaritaDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJanDec 145%Dec 145%Dec 3167%Dec 3167%Dec 1155%Dec 1155%Dec 2163%Dec 2163%clearmostly clearpartly cloudymostly cloudyovercast
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 Chacarita, the chance of a wet day over the course of December is very rapidly decreasing, starting the month at 16% and ending it at 5%.

For reference, the year's highest daily chance of a wet day is 47% on October 6, and its lowest chance is 2% on January 25.

Probability of Precipitation in December in Chacarita

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 December in Chacarita is rapidly decreasing, starting the month at 1.4 inches, when it rarely exceeds 3.0 inches or falls below 0.1 inches, and ending the month at 0.3 inches, when it rarely exceeds 1.0 inches.

Average Monthly Rainfall in December in Chacarita

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 December in Chacarita, the length of the day is essentially constant. The shortest day of the month is December 21, with 11 hours, 33 minutes of daylight and the longest day is December 1, with 11 hours, 35 minutes of daylight.

Hours of Daylight and Twilight in December in Chacarita

Hours of Daylight and Twilight in December in ChacaritaDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 2111 hr, 33 minDec 2111 hr, 33 minnightnightdaydayDec 111 hr, 35 minDec 111 hr, 35 min
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 earliest sunrise of the month in Chacarita is 5:40 AM on December 1 and the latest sunrise is 15 minutes later at 5:55 AM on December 31.

The earliest sunset is 5:15 PM on December 1 and the latest sunset is 13 minutes later at 5:29 PM on December 31.

Daylight saving time is not observed in Chacarita during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:19 AM and sets 12 hours, 43 minutes later, at 6:02 PM, while on December 21, the shortest day of the year, it rises at 5:51 AM and sets 11 hours, 33 minutes later, at 5:23 PM.

Sunrise & Sunset with Twilight in December in Chacarita

The solar day over the course of December. 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 December in Chacarita

Solar Elevation and Azimuth in December in ChacaritaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJan0010102020203030404050505000010102020303030404050506060
northeastsouthwest
Solar elevation and azimuth over the course of December 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 December 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 December in Chacarita

Moon Rise, Set & Phases in December in ChacaritaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanNov 16:48 AMNov 16:48 AMNov 153:29 PMNov 153:29 PMDec 112:22 AMDec 112:22 AMDec 153:02 AMDec 153:02 AMDec 304:28 PMDec 304:28 PMJan 134:28 PMJan 134:28 PMJan 296:37 AMJan 296:37 AM5:29 AM5:29 AM5:23 PM5:23 PM5:06 PM5:06 PM6:14 AM6:14 AM5:57 AM5:57 AM5:41 PM5:41 PM4:46 PM4:46 PM6:02 AM6:02 AM5:40 AM5:40 AM5:24 PM5:24 PM5:34 PM5:34 PM6:40 AM6:40 AM6:11 AM6:11 AM6:07 PM6:07 PM
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.
Dec 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
0%5:57 AMESE5:41 PMWSW-11:48 AMS245,314 mi
2
2%6:53 AMESE6:36 PMWSW-12:44 PMS243,230 mi
3
7%7:49 AMESE7:33 PMWSW-1:42 PMS241,096 mi
4
13%8:44 AMESE8:31 PMWSW-2:38 PMS238,950 mi
5
22%9:35 AMESE9:28 PMWSW-3:32 PMS236,811 mi
6
31%10:23 AMESE10:23 PMWSW-4:23 PMS234,696 mi
7
43%11:07 AMESE11:16 PMW-5:12 PMS232,642 mi
8
50%11:50 AME--5:59 PMS230,723 mi
9
66%-12:08 AMW12:33 PME6:46 PMS229,054 mi
10
77%-1:01 AMW1:16 PME7:34 PMS227,789 mi
11
86%-1:55 AMWNW2:02 PMENE8:25 PMN227,102 mi
12
93%-2:53 AMWNW2:51 PMENE9:21 PMN227,155 mi
13
98%-3:54 AMWNW3:46 PMENE10:20 PMN228,057 mi
14
100%-4:58 AMWNW4:46 PMENE11:23 PMN229,827 mi
15
100%-6:02 AMWNW5:48 PMENE--
16
99%-7:04 AMWNW6:50 PMENE12:27 AMN232,371 mi
17
95%-8:01 AMWNW7:50 PMENE1:27 AMN235,487 mi
18
90%-8:52 AMWNW8:45 PMENE2:23 AMN238,901 mi
19
82%-9:37 AMWNW9:35 PMENE3:13 AMN242,316 mi
20
73%-10:17 AMWNW10:22 PME3:58 AMN245,448 mi
21
64%-10:54 AMW11:07 PME4:39 AMS248,060 mi
22
50%-11:29 AMW11:50 PME5:19 AMS249,971 mi
23
45%-12:04 PMW-5:57 AMS251,070 mi
24
35%12:33 AME12:40 PMW-6:36 AMS251,317 mi
25
26%1:18 AMESE1:17 PMWSW-7:17 AMS250,738 mi
26
18%2:05 AMESE1:58 PMWSW-8:00 AMS249,423 mi
27
11%2:54 AMESE2:42 PMWSW-8:47 AMS247,514 mi
28
5%3:47 AMESE3:32 PMWSW-9:39 AMS245,189 mi
29
2%4:43 AMESE4:26 PMWSW-10:34 AMS242,649 mi
30
0%5:40 AMESE5:24 PMWSW-11:32 AMS240,093 mi
31
1%6:36 AMESE6:23 PMWSW-12:30 PMS237,694 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 Chacarita is very rapidly decreasing during December, falling from 83% to 52% over the course of the month.

For reference, on September 22, the muggiest day of the year, there are muggy conditions 99% of the time, while on February 10, the least muggy day of the year, there are muggy conditions 35% of the time.

Humidity Comfort Levels in December in Chacarita

Humidity Comfort Levels in December in ChacaritaDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%NovJanDec 183%Dec 183%Dec 3152%Dec 3152%Dec 1174%Dec 1174%Dec 2164%Dec 2164%oppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortablemiserablemiserable
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 Chacarita is increasing during December, increasing from 5.4 miles per hour to 6.7 miles per hour over the course of the month.

For reference, on February 5, the windiest day of the year, the daily average wind speed is 7.4 miles per hour, while on June 24, the calmest day of the year, the daily average wind speed is 4.2 miles per hour.

Average Wind Speed in December in Chacarita

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 Chacarita throughout December is predominantly from the north, with a peak proportion of 50% on December 16.

Wind Direction in December in Chacarita

Wind Direction in December in ChacaritaNEDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%NovJanwesteastnorth
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).

Chacarita 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 Chacarita is essentially constant during December, remaining around 82°F throughout.

Average Water Temperature in December in Chacarita

Average Water Temperature in December in ChacaritaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313180.0°F80.0°F80.5°F80.5°F81.0°F81.0°F81.5°F81.5°F82.0°F82.0°F82.5°F82.5°F83.0°F83.0°F83.5°F83.5°F84.0°F84.0°F84.5°F84.5°F85.0°F85.0°FNovJanDec 182°FDec 182°FDec 3183°FDec 3183°FDec 1182°FDec 1182°FDec 2183°FDec 2183°F
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 Chacarita 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 December in Chacarita

Time Spent in Various Temperature Bands and the Growing Season in December in ChacaritaDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJan100%Dec 16100%Dec 16warmhotsweltering
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 Chacarita are very rapidly increasing during December, increasing by 972°F, from 10,850°F to 11,822°F, over the course of the month.

Growing Degree Days in December in Chacarita

Growing Degree Days in December in ChacaritaDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313110,800°F10,800°F11,000°F11,000°F11,200°F11,200°F11,400°F11,400°F11,600°F11,600°F11,800°F11,800°F12,000°F12,000°FNovJanDec 110,850°FDec 110,850°FDec 3111,822°FDec 3111,822°FDec 1111,174°FDec 1111,174°FDec 2111,498°FDec 2111,498°F
The average growing degree days accumulated over the course of December, 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 Chacarita is gradually increasing during December, rising by 0.7 kWh, from 4.9 kWh to 5.6 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in December in Chacarita

Average Daily Incident Shortwave Solar Energy in December in ChacaritaDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhNovJanDec 14.9 kWhDec 14.9 kWhDec 315.6 kWhDec 315.6 kWhDec 115.2 kWhDec 115.2 kWhDec 215.4 kWhDec 215.4 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 Chacarita are 9.984 deg latitude, -84.779 deg longitude, and 23 ft elevation.

The topography within 2 miles of Chacarita is essentially flat, with a maximum elevation change of 95 feet and an average elevation above sea level of 18 feet. Within 10 miles is essentially flat (3,114 feet). Within 50 miles contains large variations in elevation (9,564 feet).

The area within 2 miles of Chacarita is covered by water (43%), mangroves (24%), grassland (17%), and trees (13%), within 10 miles by water (41%) and grassland (24%), and within 50 miles by water (33%) and trees (31%).

This report illustrates the typical weather in Chacarita, 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, Juan Santamaría International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Chacarita.

At a distance of 62 kilometers from Chacarita, 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 Chacarita 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.

Please review our full terms contained on our Terms of Service page.