Average Weather in El Roble Panama
In El Roble, the wet season is overcast, the dry season is partly cloudy, and it is hot and oppressive year round. Over the course of the year, the temperature typically varies from 72°F to 95°F and is rarely below 69°F or above 98°F.
Based on the beach/pool score, the best time of year to visit El Roble for hot-weather activities is from mid December to early March.
The hot season lasts for 2.1 months, from February 21 to April 24, with an average daily high temperature above 93°F. The hottest day of the year is April 3, with an average high of 95°F and low of 74°F.
The cool season lasts for 6.4 months, from June 6 to December 17, with an average daily high temperature below 87°F. The coldest day of the year is January 19, with an average low of 72°F and high of 89°F.
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 El Roble, 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 El Roble begins around November 25 and lasts for 4.7 months, ending around April 15. On January 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 54% of the time, and overcast or mostly cloudy 46% of the time.
The cloudier part of the year begins around April 15 and lasts for 7.3 months, ending around November 25. On July 26, 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
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in El Roble varies significantly throughout the year.
The wetter season lasts 7.4 months, from April 28 to December 8, with a greater than 26% chance of a given day being a wet day. The chance of a wet day peaks at 48% on October 23.
The drier season lasts 4.6 months, from December 8 to April 28. The smallest chance of a wet day is 3% on February 1.
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 48% on October 23.
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. El Roble experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 10 months, from March 15 to January 18, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around October 20, with an average total accumulation of 7.8 inches.
The rainless period of the year lasts for 1.9 months, from January 18 to March 15. The least rain falls around February 10, with an average total accumulation of 0.3 inches.
Average Monthly Rainfall
The length of the day in El Roble does not vary substantially over the course of the year, staying within 36 minutes of 12 hours throughout. In 2019, the shortest day is December 21, with 11 hours, 39 minutes of daylight; the longest day is June 21, with 12 hours, 36 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:03 AM on May 27, and the latest sunrise is 39 minutes later at 6:42 AM on January 30. The earliest sunset is at 5:59 PM on November 14, and the latest sunset is 46 minutes later at 6:45 PM on July 14.
Daylight saving time (DST) is not observed in El Roble during 2019.
Sunrise & Sunset with 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.
The perceived humidity level in El Roble, 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 3% of 97% throughout.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 El Roble experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 4.0 months, from December 23 to April 24, with average wind speeds of more than 7.2 miles per hour. The windiest day of the year is February 27, with an average hourly wind speed of 9.9 miles per hour.
The calmer time of year lasts for 8.0 months, from April 24 to December 23. The calmest day of the year is June 14, with an average hourly wind speed of 4.6 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in El Roble varies throughout the year.
The wind is most often from the west for 2.6 weeks, from May 29 to June 16 and for 2.7 months, from August 19 to November 11, with a peak percentage of 59% on October 13. The wind is most often from the north for 2.1 months, from June 16 to August 19 and for 6.6 months, from November 11 to May 29, with a peak percentage of 56% on July 18.
El Roble 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 experiences some seasonal variation over the course of the year.
The time of year with warmer water lasts for 5.6 months, from May 9 to October 28, with an average temperature above 83°F. The day of the year with the warmest water is June 8, with an average temperature of 84°F.
The time of year with cooler water lasts for 2.0 months, from February 6 to April 4, with an average temperature below 80°F. The day of the year with the coolest water is March 5, with an average temperature of 79°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in El Roble 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 El Roble for general outdoor tourist activities is from mid December to mid March, 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 El Roble for hot-weather activities is from mid December to early March, 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.
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 El Roble 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 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
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 2.9 months, from January 18 to April 14, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest day of the year is March 19, with an average of 6.8 kWh.
The darker period of the year lasts for 5.4 months, from May 19 to October 31, with an average daily incident shortwave energy per square meter below 3.9 kWh. The darkest day of the year is July 25, with an average of 3.2 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of El Roble are 8.168 deg latitude, -80.659 deg longitude, and 59 ft elevation.
The topography within 2 miles of El Roble contains only modest variations in elevation, with a maximum elevation change of 180 feet and an average elevation above sea level of 76 feet. Within 10 miles contains only modest variations in elevation (837 feet). Within 50 miles contains very significant variations in elevation (6,342 feet).
The area within 2 miles of El Roble is covered by grassland (76%), trees (14%), and shrubs (10%), within 10 miles by grassland (63%) and cropland (15%), and within 50 miles by grassland (29%) and trees (24%).
This report illustrates the typical weather in El Roble, 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, Albrook "Marcos A. Gelabert" International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of El Roble.
At a distance of 155 kilometers from El Roble, 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 El Roble to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 9%, making the weight assigned to the weather station 91%.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
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.