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Winter Weather in Evinayong Equatorial Guinea

Daily high temperatures are around 83°F, rarely falling below 78°F or exceeding 87°F. The highest daily average high temperature is 84°F on February 11.

Daily low temperatures are around 67°F, rarely falling below 64°F or exceeding 69°F. The highest daily average low temperature is 67°F on February 11.

For reference, on February 9, the hottest day of the year, temperatures in Evinayong typically range from 67°F to 84°F, while on July 24, the coldest day of the year, they range from 65°F to 79°F.

Average High and Low Temperature in the Winter in Evinayong

Average High and Low Temperature in the Winter in EvinayongDecJanFeb65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°FFallSpringFeb 984°FFeb 984°F67°F67°FDec 181°FDec 181°F66°F66°FFeb 2884°FFeb 2884°F67°F67°FJan 183°FJan 183°F66°F66°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 winter temperatures. 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 the Winter in Evinayong

Average Hourly Temperature in the Winter in EvinayongDecJanFeb12 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 AMFallSpringcomfortablecomfortablewarm
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.

Santiago, Costa Rica (6,540 miles away) is the far-away foreign place with temperatures most similar to Evinayong (view comparison).

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The winter in Evinayong experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 81% throughout the season. The lowest chance of overcast or mostly cloudy conditions is 78% on December 29.

The clearest day of the winter is December 29, with clear, mostly clear, or partly cloudy conditions 22% of the time.

For reference, on April 27, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 88%, while on July 19, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 29%.

Cloud Cover Categories in the Winter in Evinayong

Cloud Cover Categories in the Winter in EvinayongDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FallSpringApr 2712%Apr 2712%Dec 118%Dec 118%Feb 2816%Feb 2816%Jan 122%Jan 122%Feb 119%Feb 119%partly 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.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Evinayong, the chance of a wet day over the course of the winter is very rapidly decreasing, starting the season at 69% and ending it at 57%.

For reference, the year's highest daily chance of a wet day is 91% on October 31, and its lowest chance is 13% on July 28.

Probability of Precipitation in the Winter in Evinayong

Probability of Precipitation in the Winter in EvinayongDecJanFeb0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%FallSpringDec 3137%Dec 3137%Dec 169%Dec 169%Feb 2857%Feb 2857%Feb 142%Feb 142%rain
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 season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the winter in Evinayong is very rapidly decreasing, starting the season at 7.3 inches, when it rarely exceeds 11.5 inches or falls below 2.9 inches, and ending the season at 5.0 inches, when it rarely exceeds 8.7 inches or falls below 2.3 inches.

The lowest average 31-day accumulation is 2.5 inches on January 8.

Average Monthly Rainfall in the Winter in Evinayong

Average Monthly Rainfall in the Winter in EvinayongDecJanFeb0 in0 in5 in5 in10 in10 in15 in15 in20 in20 inFallSpringJan 82.5 inJan 82.5 inDec 17.3 inDec 17.3 inFeb 285.0 inFeb 285.0 inFeb 12.9 inFeb 12.9 in
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 the winter in Evinayong, the length of the day is essentially constant. The shortest day of the winter is December 21, with 12 hours, 3 minutes of daylight and the longest day is February 28, with 12 hours, 5 minutes of daylight.

Hours of Daylight and Twilight in the Winter in Evinayong

Hours of Daylight and Twilight in the Winter in EvinayongDecJanFeb0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrFallSpringDec 2112 hr, 3 minDec 2112 hr, 3 minnightnightdaydayFeb 2812 hr, 5 minFeb 2812 hr, 5 minFeb 112 hr, 4 minFeb 112 hr, 4 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 winter in Evinayong is 6:05 AM on December 1 and the latest sunrise is 24 minutes later at 6:30 AM on February 9.

The earliest sunset is 6:08 PM on December 1 and the latest sunset is 26 minutes later at 6:34 PM on February 13.

Daylight saving time is not observed in Evinayong during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:13 AM and sets 12 hours, 12 minutes later, at 6:25 PM, while on December 21, the shortest day of the year, it rises at 6:14 AM and sets 12 hours, 3 minutes later, at 6:17 PM.

Sunrise & Sunset with Twilight in the Winter in Evinayong

Sunrise & Sunset with Twilight in the Winter in EvinayongDecJanFeb2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMFallSpring6:05 AM6:05 AMDec 16:08 PMDec 16:08 PM6:29 AM6:29 AMFeb 136:34 PMFeb 136:34 PM6:20 AM6:20 AMJan 16:22 PMJan 16:22 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the winter. 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 the Winter in Evinayong

Solar Elevation and Azimuth in the Winter in EvinayongDecJanFeb12 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 AMFallSpring001020203030405050606080001010203030404050606070
northeastsouthwest
Solar elevation and azimuth in the the winter of 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 the winter of 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 the Winter in Evinayong

Moon Rise, Set & Phases in the Winter in EvinayongDecJanFeb12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMFallSpringNov 11:48 PMNov 11:48 PMNov 1510:29 PMNov 1510:29 PMDec 17:22 AMDec 17:22 AMDec 1510:02 AMDec 1510:02 AMDec 3011:28 PMDec 3011:28 PMJan 1311:28 PMJan 1311:28 PMJan 291:37 PMJan 291:37 PMFeb 122:54 PMFeb 122:54 PMFeb 281:45 AMFeb 281:45 AMMar 147:55 AMMar 147:55 AMMar 2911:58 AMMar 2911:58 AM6:03 PM6:03 PM5:44 PM5:44 PM6:19 AM6:19 AM6:03 AM6:03 AM5:27 PM5:27 PM6:05 AM6:05 AM6:06 PM6:06 PM6:15 PM6:15 PM6:49 AM6:49 AM6:21 AM6:21 AM6:44 PM6:44 PM6:41 PM6:41 PM7:06 AM7:06 AM7:07 PM7:07 PM6:04 PM6:04 PM6:25 AM6:25 AM6:35 PM6:35 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.

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 Evinayong is essentially constant during the winter, remaining around 100% throughout.

For reference, on September 22, the muggiest day of the year, there are muggy conditions 100% of the time, while on July 29, the least muggy day of the year, there are muggy conditions 85% of the time.

Humidity Comfort Levels in the Winter in Evinayong

Humidity Comfort Levels in the Winter in EvinayongDecJanFeb0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%FallSpringDec 11100%Dec 11100%Jan 11100%Jan 11100%Feb 28100%Feb 28100%Feb 1100%Feb 1100%oppressiveoppressivemuggymuggymiserablemiserable
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 Evinayong is essentially constant during the winter, remaining within 0.2 miles per hour of 1.8 miles per hour throughout.

For reference, on August 7, the windiest day of the year, the daily average wind speed is 2.2 miles per hour, while on May 6, the calmest day of the year, the daily average wind speed is 1.6 miles per hour.

The highest daily average wind speed during the winter is 2.0 miles per hour on February 3.

Average Wind Speed in the Winter in Evinayong

Average Wind Speed in the Winter in EvinayongDecJanFeb0.0 mph0.0 mph0.5 mph0.5 mph1.0 mph1.0 mph1.5 mph1.5 mph2.0 mph2.0 mph2.5 mph2.5 mphFallSpringFeb 32.0 mphFeb 32.0 mphDec 11.6 mphDec 11.6 mphFeb 281.9 mphFeb 281.9 mphJan 11.8 mphJan 11.8 mph
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 Evinayong throughout the winter is predominantly from the west, with a peak proportion of 85% on February 7.

Wind Direction in the Winter in Evinayong

Wind Direction in the Winter in EvinayongDecJanFeb0%100%20%80%40%60%60%40%80%20%100%0%FallSpringwestsouthnortheast
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).

Evinayong 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 Evinayong is essentially constant during the winter, remaining within 1°F of 83°F throughout.

Average Water Temperature in the Winter in Evinayong

Average Water Temperature in the Winter in EvinayongDecJanFeb80°F80°F81°F81°F82°F82°F83°F83°F84°F84°F85°F85°F86°F86°FFallSpringDec 182°FDec 182°FFeb 2884°FFeb 2884°FJan 182°FJan 182°FFeb 183°FFeb 183°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 Evinayong 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 the Winter in Evinayong

Time Spent in Various Temperature Bands and the Growing Season in the Winter in EvinayongDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FallSpring100%Jan 15100%Jan 15comfortablewarmhotcool
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 Evinayong are very rapidly decreasing during the winter, decreasing by 6,227°F, from 7,632°F to 1,405°F, over the course of the season.

Growing Degree Days in the Winter in Evinayong

Growing Degree Days in the Winter in EvinayongDecJanFeb1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°F7,000°F7,000°F8,000°F8,000°FFallSpringDec 17,632°FDec 17,632°FFeb 281,405°FFeb 281,405°F
The average growing degree days accumulated over the course of the winter, 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 Evinayong is essentially constant during the winter, remaining within 0.2 kWh of 4.4 kWh throughout.

The highest average daily incident shortwave solar energy during the winter is 4.6 kWh on February 9.

Average Daily Incident Shortwave Solar Energy in the Winter in Evinayong

Average Daily Incident Shortwave Solar Energy in the Winter in EvinayongDecJanFeb0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWhFallSpringFeb 94.6 kWhFeb 94.6 kWhDec 14.2 kWhDec 14.2 kWhFeb 284.5 kWhFeb 284.5 kWhJan 14.4 kWhJan 14.4 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 Evinayong are 1.437 deg latitude, 10.551 deg longitude, and 2,195 ft elevation.

The topography within 2 miles of Evinayong contains significant variations in elevation, with a maximum elevation change of 787 feet and an average elevation above sea level of 2,273 feet. Within 10 miles contains significant variations in elevation (1,611 feet). Within 50 miles contains very significant variations in elevation (3,980 feet).

The area within 2 miles of Evinayong is covered by trees (50%) and cropland (35%), within 10 miles by trees (75%) and cropland (14%), and within 50 miles by trees (71%) and cropland (12%).

This report illustrates the typical weather in Evinayong, 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 are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Evinayong.

For each station, the records are corrected for the elevation difference between that station and Evinayong according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Evinayong is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Evinayong and a given station.

The stations contributing to this reconstruction are:

  • Bata Airport (FGBT, 65%, 61 mi, northwest, -2,169 ft elevation change)
  • Libreville Airport (FOOL, 35%, 104 mi, southwest, -2,159 ft elevation change)

To get a sense of how much these sources agree with each other, you can view a comparison of Evinayong and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

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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