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Climate and Average Weather Year Round in Roxana Costa Rica

The climate in Roxana is hot, muggy, and overcast. Over the course of the year, the temperature typically varies from 73°F to 90°F and is rarely below 70°F or above 93°F.

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

Climate in Roxana

hotJanFebMarAprMayJunJulAugSepOctNovDecNowNow64%64%5%5%overcastprecipitation: 7.4 inprecipitation: 7.4 in1.0 in1.0 inmuggy: 97%muggy: 97%33%33%beach/pool score: 7.4beach/pool score: 7.44.04.0
Roxana weather by month. Click on each chart for more information.

The temperature in Roxana varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.

Average High and Low Temperature in Roxana

Average High and Low Temperature in RoxanaJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FMar 1088°FMar 1088°FApr 1690°FApr 1690°F73°F73°F75°F75°FNov 1887°FNov 1887°F76°F76°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 86°F87°F88°F89°F89°F88°F87°F87°F88°F87°F87°F86°F
Temp. 79°F79°F80°F81°F81°F80°F80°F80°F80°F80°F80°F80°F
Low 75°F74°F74°F75°F75°F76°F76°F75°F74°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 Roxana

Average Hourly Temperature in RoxanaJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowcomfortablewarmwarmhot
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.

Bandar Lampung, Indonesia (11,748 miles away) and Tawau, Malaysia (10,653 miles) are the far-away foreign places with temperatures most similar to Roxana (view comparison).

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In Roxana, 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 Roxana begins around November 24 and lasts for 4.5 months, ending around April 10.

The clearest month of the year in Roxana is January, during which on average the sky is clear, mostly clear, or partly cloudy 63% of the time.

The cloudier part of the year begins around April 10 and lasts for 7.5 months, ending around November 24.

The cloudiest month of the year in Roxana is June, during which on average the sky is overcast or mostly cloudy 94% of the time.

Cloud Cover Categories in Roxana

Cloud Cover Categories in RoxanaclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jan 264%Jan 264%Jun 145%Jun 145%Nov 2434%Nov 2434%Apr 1036%Apr 1036%NowNowclearmostly 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.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 37%42%49%70%89%94%93%93%92%90%73%47%
Clearer 63%58%51%30%11%6%7%7%8%10%27%53%

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

The wetter season lasts 7.1 months, from May 2 to December 6, with a greater than 35% chance of a given day being a wet day. The month with the most wet days in Roxana is October, with an average of 18.0 days with at least 0.04 inches of precipitation.

The drier season lasts 4.9 months, from December 6 to May 2. The month with the fewest wet days in Roxana is March, with an average of 3.3 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 Roxana is October, with an average of 18.0 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 60% on October 6.

Daily Chance of Precipitation in Roxana

Daily Chance of Precipitation in RoxanawetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Oct 660%Oct 660%Mar 169%Mar 169%May 235%May 235%Dec 635%Dec 635%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 5.4d4.0d3.3d6.7d14.3d17.1d16.8d16.1d17.0d18.0d13.5d9.1d

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. Roxana experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Roxana. The month with the most rain in Roxana is October, with an average rainfall of 7.4 inches.

The month with the least rain in Roxana is March, with an average rainfall of 1.0 inches.

Average Monthly Rainfall in Roxana

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 2.1″1.4″1.0″2.3″5.7″7.0″6.6″6.3″6.7″7.4″5.9″3.7″

The length of the day in Roxana does not vary substantially over the course of the year, staying within 43 minutes of 12 hours throughout. In 2024, the shortest day is December 21, with 11 hours, 32 minutes of daylight; the longest day is June 20, with 12 hours, 44 minutes of daylight.

Hours of Daylight and Twilight in Roxana

Hours of Daylight and Twilight in RoxanaJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 1912 hr, 6 minMar 1912 hr, 44 minJun 2012 hr, 44 minJun 2012 hr, 7 minSep 2212 hr, 7 minSep 2211 hr, 32 minDec 2111 hr, 32 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 11.6h11.8h12.1h12.4h12.6h12.7h12.7h12.4h12.2h11.9h11.7h11.5h

The earliest sunrise is at 5:12 AM on May 27, and the latest sunrise is 46 minutes later at 5:57 AM on January 28. The earliest sunset is at 5:09 PM on November 16, and the latest sunset is 52 minutes later at 6:01 PM on July 12.

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

Sunrise & Sunset with Twilight in Roxana

Sunrise & Sunset with Twilight in RoxanaJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PMMay 275:12 AMMay 275:12 AM6:01 PMJul 126:01 PMJul 12Nov 165:09 PMNov 165:09 PM5:57 AMJan 285:57 AMJan 28daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 Roxana

Solar Elevation and Azimuth in RoxanaJanFebMarAprMayJunJulAugSepOctNovDec12 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 Roxana

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.

Roxana experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 9.3 months, from March 16 to December 26, during which time the comfort level is muggy, oppressive, or miserable at least 49% of the time. The month with the most muggy days in Roxana is October, with 28.8 days that are muggy or worse.

The month with the fewest muggy days in Roxana is February, with 11.0 days that are muggy or worse.

Humidity Comfort Levels in Roxana

Humidity Comfort Levels in RoxanamuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 2533%Jan 2533%97%Jun 597%Jun 5Mar 1649%Mar 1649%Dec 2649%Dec 2649%NowNowoppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortablemiserablemiserable
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 11.4d11.0d15.3d20.9d28.4d28.7d28.5d28.6d28.1d28.8d24.8d18.0d

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 Roxana experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.7 months, from November 20 to May 10, with average wind speeds of more than 3.1 miles per hour. The windiest month of the year in Roxana is February, with an average hourly wind speed of 4.1 miles per hour.

The calmer time of year lasts for 6.3 months, from May 10 to November 20. The calmest month of the year in Roxana is September, with an average hourly wind speed of 2.1 miles per hour.

Average Wind Speed in Roxana

Average Wind Speed in RoxanawindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mphJan 304.1 mphJan 304.1 mphOct 12.0 mphOct 12.0 mphNov 203.1 mphNov 203.1 mphMay 103.1 mphMay 103.1 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) 4.04.13.93.62.92.62.82.52.12.22.93.7

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

Wind Direction in Roxana

Wind Direction in RoxanaJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNoweastnorthwestsouth
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).

Roxana 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 Roxana

Average Water Temperature in RoxanaJanFebMarAprMayJunJulAugSepOctNovDec79°F79°F80°F80°F81°F81°F82°F82°F83°F83°F84°F84°F85°F85°F86°F86°FSep 1984°FSep 1984°F81°FJan 1981°FJan 19Oct 2483°FOct 2483°FDec 1881°FDec 1881°FMar 1081°FMar 1081°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 81°F81°F82°F82°F83°F83°F83°F83°F84°F83°F82°F81°F

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

Tourism Score in Roxana

Tourism Score in Roxanabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.16.12.82.83.03.0NowNowtemperaturetemperature precipitationprecipitationtourism 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 Roxana for hot-weather activities is from mid December to late March, with a peak score in the last week of January.

Beach/Pool Score in Roxana

Beach/Pool Score in Roxanabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.47.44.04.04.14.1NowNowtemperaturetemperature 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 Roxana 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 Roxana

Time Spent in Various Temperature Bands and the Growing Season in RoxanaJanFebMarAprMayJunJulAugSepOctNovDec0%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 2NowNowcomfortablewarmhot
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 Roxana

Growing Degree Days in RoxanaJanFebMarAprMayJunJulAugSepOctNovDec0°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°FDec 3110,793°FDec 3110,793°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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 2.2 months, from February 16 to April 21, with an average daily incident shortwave energy per square meter above 6.2 kWh. The brightest month of the year in Roxana is March, with an average of 6.7 kWh.

The darker period of the year lasts for 5.7 months, from May 26 to November 16, with an average daily incident shortwave energy per square meter below 4.4 kWh. The darkest month of the year in Roxana is June, with an average of 3.9 kWh.

Average Daily Incident Shortwave Solar Energy in Roxana

Average Daily Incident Shortwave Solar Energy in RoxanabrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhMar 236.8 kWhMar 236.8 kWhJun 273.8 kWhJun 273.8 kWhNov 164.4 kWhNov 164.4 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) 5.66.26.76.45.03.93.94.04.03.94.34.9

For the purposes of this report, the geographical coordinates of Roxana are 10.267 deg latitude, -83.751 deg longitude, and 387 ft elevation.

The topography within 2 miles of Roxana contains only modest variations in elevation, with a maximum elevation change of 285 feet and an average elevation above sea level of 399 feet. Within 10 miles contains only modest variations in elevation (2,894 feet). Within 50 miles contains large variations in elevation (11,430 feet).

The area within 2 miles of Roxana is covered by trees (60%), cropland (17%), and grassland (13%), within 10 miles by trees (61%) and grassland (16%), and within 50 miles by trees (54%) and water (24%).

This report illustrates the typical weather in Roxana, 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 Roxana.

At a distance of 59 kilometers from Roxana, 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 Roxana 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.