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Climate and Average Weather Year Round in Liberia Costa Rica

In Liberia, the wet season is oppressive and overcast; the dry season is muggy, windy, and partly cloudy; and it is hot year round. Over the course of the year, the temperature typically varies from 75°F to 96°F and is rarely below 71°F or above 99°F.

Based on the beach/pool score, the best time of year to visit Liberia for hot-weather activities is from early December to early March.

Climate in Liberia

hotswelteringhotJanFebMarAprMayJunJulAugSepOctNovDecNowNow73%73%9%9%clearovercastprecipitation: 7.5 inprecipitation: 7.5 in0.1 in0.1 inmuggy: 100%muggy: 100%31%31%beach/pool score: 7.9beach/pool score: 7.94.14.1
Liberia weather by month. Click on each chart for more information.

The hot season lasts for 2.4 months, from February 23 to May 3, with an average daily high temperature above 94°F. The hottest month of the year in Liberia is April, with an average high of 95°F and low of 77°F.

The cool season lasts for 2.9 months, from September 7 to December 3, with an average daily high temperature below 89°F. The coldest month of the year in Liberia is October, with an average low of 75°F and high of 88°F.

Average High and Low Temperature in Liberia

Average High and Low Temperature in LiberiahotcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FOct 688°FOct 688°FApr 796°FApr 796°F75°F75°F76°F76°FFeb 2394°FFeb 2394°FSep 789°FSep 789°FDec 389°FDec 389°F75°F75°F77°F77°F75°F75°F75°F75°FNowNow
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.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 92°F94°F95°F95°F92°F90°F90°F90°F89°F88°F89°F90°F
Temp. 82°F83°F84°F85°F84°F82°F82°F82°F81°F80°F81°F82°F
Low 75°F75°F75°F77°F77°F76°F76°F76°F75°F75°F75°F75°F

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 Liberia

Average Hourly Temperature in LiberiaJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowwarmwarmhot
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.

Jitra, Malaysia (11,214 miles away); Ho Chi Minh City, Vietnam (10,750 miles); and Muricay, Philippines (10,085 miles) are the far-away foreign places with temperatures most similar to Liberia (view comparison).

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In Liberia, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year in Liberia begins around November 19 and lasts for 4.7 months, ending around April 11.

The clearest month of the year in Liberia is January, during which on average the sky is clear, mostly clear, or partly cloudy 71% of the time.

The cloudier part of the year begins around April 11 and lasts for 7.3 months, ending around November 19.

The cloudiest month of the year in Liberia is June, during which on average the sky is overcast or mostly cloudy 90% of the time.

Cloud Cover Categories in Liberia

Cloud Cover Categories in LiberiaclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jan 173%Jan 173%Jun 69%Jun 69%Nov 1941%Nov 1941%Apr 1142%Apr 1142%NowNowclearpartly cloudymostly 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.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 29%35%41%64%86%90%87%86%87%83%62%36%
Clearer 71%65%59%36%14%10%13%14%13%17%38%64%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Liberia varies significantly throughout the year.

The wetter season lasts 5.9 months, from May 12 to November 8, with a greater than 24% chance of a given day being a wet day. The month with the most wet days in Liberia is September, with an average of 13.3 days with at least 0.04 inches of precipitation.

The drier season lasts 6.1 months, from November 8 to May 12. The month with the fewest wet days in Liberia is February, with an average of 0.3 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Liberia is September, with an average of 13.3 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 47% on September 18.

Daily Chance of Precipitation in Liberia

Daily Chance of Precipitation in LiberiawetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Sep 1847%Sep 1847%Jan 241%Jan 241%May 1224%May 1224%Nov 824%Nov 824%NowNowrain
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).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 0.3d0.3d0.4d1.8d8.2d10.3d7.9d9.3d13.3d12.2d5.4d1.3d

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. Liberia experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.0 months, from April 11 to December 13, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Liberia is September, with an average rainfall of 7.2 inches.

The rainless period of the year lasts for 4.0 months, from December 13 to April 11. The month with the least rain in Liberia is February, with an average rainfall of 0.1 inches.

Average Monthly Rainfall in Liberia

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.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 0.1″0.1″0.1″0.6″4.0″4.8″3.1″4.6″7.2″6.6″2.3″0.4″

The length of the day in Liberia does not vary substantially over the course of the year, staying within 44 minutes of 12 hours throughout. In 2024, the shortest day is December 21, with 11 hours, 30 minutes of daylight; the longest day is June 20, with 12 hours, 45 minutes of daylight.

Hours of Daylight and Twilight in Liberia

Hours of Daylight and Twilight in LiberiaJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 1912 hr, 6 minMar 1912 hr, 45 minJun 2012 hr, 45 minJun 2012 hr, 7 minSep 2212 hr, 7 minSep 2211 hr, 30 minDec 2111 hr, 30 minDec 21nightnightdayNowNow
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.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 11.6h11.8h12.1h12.4h12.6h12.7h12.7h12.5h12.2h11.9h11.6h11.5h

The earliest sunrise is at 5:18 AM on May 30, and the latest sunrise is 47 minutes later at 6:05 AM on January 26. The earliest sunset is at 5:15 PM on November 16, and the latest sunset is 53 minutes later at 6:08 PM on July 10.

Daylight saving time (DST) is not observed in Liberia during 2024.

Sunrise & Sunset with Twilight in Liberia

Sunrise & Sunset with Twilight in LiberiaJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PMMay 305:18 AMMay 305:18 AM6:08 PMJul 106:08 PMJul 10Nov 165:15 PMNov 165:15 PM6:05 AMJan 266:05 AMJan 26daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2024. 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 Liberia

Solar Elevation and Azimuth in LiberiaJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM000010101010202020203030303040404040505050506060606070707080000010101010202020203030303040404040505050506060607070805690NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 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 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.

Moon Rise, Set & Phases in Liberia

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.

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.

Liberia experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 9.2 months, from March 25 to December 31, during which time the comfort level is muggy, oppressive, or miserable at least 48% of the time. The month with the most muggy days in Liberia is October, with 30.5 days that are muggy or worse.

The month with the fewest muggy days in Liberia is February, with 9.7 days that are muggy or worse.

Humidity Comfort Levels in Liberia

Humidity Comfort Levels in LiberiamuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 231%Feb 231%100%Sep 24100%Sep 24Mar 2548%Mar 2548%Dec 3148%Dec 3148%NowNowmiserablemiserableoppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortable
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.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 11.4d9.7d13.6d20.1d28.8d29.6d30.1d30.2d29.8d30.5d26.8d20.2d

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 Liberia experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 4.7 months, from November 27 to April 17, with average wind speeds of more than 8.7 miles per hour. The windiest month of the year in Liberia is January, with an average hourly wind speed of 11.9 miles per hour.

The calmer time of year lasts for 7.3 months, from April 17 to November 27. The calmest month of the year in Liberia is September, with an average hourly wind speed of 5.4 miles per hour.

Average Wind Speed in Liberia

Average Wind Speed in LiberiawindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphJan 3012.1 mphJan 3012.1 mphSep 185.2 mphSep 185.2 mphNov 278.7 mphNov 278.7 mphApr 178.7 mphApr 178.7 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 11.911.910.68.86.66.07.16.35.45.87.710.4

The predominant average hourly wind direction in Liberia is from the east throughout the year.

Wind Direction in Liberia

Wind Direction in LiberiaJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwesteastnorthsouth
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).

Liberia 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 water temperature does not vary significantly over the course of the year, remaining within 2°F of 82°F throughout.

Average Water Temperature in Liberia

Average Water Temperature in LiberiaJanFebMarAprMayJunJulAugSepOctNovDec77°F77°F78°F78°F79°F79°F80°F80°F81°F81°F82°F82°F83°F83°F84°F84°F85°F85°F86°F86°FMay 1484°FMay 1484°F80°FFeb 680°FFeb 6Jul 1983°FJul 1983°FDec 2281°FDec 2281°FMar 1281°FMar 1281°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 81°F81°F81°F83°F84°F84°F83°F83°F83°F83°F82°F81°F

To characterize how pleasant the weather is in Liberia 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 Liberia for general outdoor tourist activities is from early December to mid March, with a peak score in the second week of January.

Tourism Score in Liberia

Tourism Score in Liberiabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.75.72.92.93.13.1NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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 Liberia for hot-weather activities is from early December to early March, with a peak score in the first week of January.

Beach/Pool Score in Liberia

Beach/Pool Score in Liberiabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.97.94.14.15.05.04.34.3NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

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.

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 Liberia 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 Liberia

Time Spent in Various Temperature Bands and the Growing Season in LiberiaJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 2100%Jul 2NowNowcomfortablewarmhotsweltering
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.

Growing Degree Days in Liberia

Growing Degree Days in LiberiaJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°FJan 490°FJan 490°FJan 30900°FJan 30900°FDec 3111,297°FDec 3111,297°FNowNow
The average growing degree days accumulated over the course of the year, 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 experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 2.2 months, from February 13 to April 19, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest month of the year in Liberia is March, with an average of 7.1 kWh.

The darker period of the year lasts for 5.6 months, from May 21 to November 8, with an average daily incident shortwave energy per square meter below 4.8 kWh. The darkest month of the year in Liberia is June, with an average of 4.3 kWh.

Average Daily Incident Shortwave Solar Energy in Liberia

Average Daily Incident Shortwave Solar Energy in LiberiabrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhMar 217.2 kWhMar 217.2 kWhOct 24.2 kWhOct 24.2 kWhFeb 136.6 kWhFeb 136.6 kWhMay 214.8 kWhMay 214.8 kWhNov 84.8 kWhNov 84.8 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 6.16.77.16.75.24.34.44.54.44.45.05.5

For the purposes of this report, the geographical coordinates of Liberia are 10.635 deg latitude, -85.438 deg longitude, and 486 ft elevation.

The topography within 2 miles of Liberia contains only modest variations in elevation, with a maximum elevation change of 364 feet and an average elevation above sea level of 494 feet. Within 10 miles contains only modest variations in elevation (2,379 feet). Within 50 miles contains large variations in elevation (6,591 feet).

The area within 2 miles of Liberia is covered by grassland (41%), cropland (31%), trees (17%), and shrubs (11%), within 10 miles by grassland (44%) and trees (27%), and within 50 miles by water (36%) and trees (27%).

This report illustrates the typical weather in Liberia, 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 Liberia.

At a distance of 152 kilometers from Liberia, 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 Liberia to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 4%, making the weight assigned to the weather station 96%.

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.