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Summer Weather in Adi Keyh Eritrea

Daily high temperatures decrease by 4°F, from 77°F to 73°F, rarely falling below 65°F or exceeding 81°F. The highest daily average high temperature is 77°F on June 10.

Daily low temperatures are around 58°F, rarely falling below 54°F or exceeding 62°F.

For reference, on June 8, the hottest day of the year, temperatures in Adi Keyh typically range from 58°F to 77°F, while on December 22, the coldest day of the year, they range from 47°F to 71°F.

Average High and Low Temperature in the Summer in Adi Keyh

Average High and Low Temperature in the Summer in Adi KeyhJunJulAug50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°FSpringFallJun 877°FJun 877°F58°F58°FAug 471°FAug 471°F57°F57°FAug 3173°FAug 3173°F57°F57°FJul 175°FJul 175°F57°F57°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 summer 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 Summer in Adi Keyh

Average Hourly Temperature in the Summer in Adi KeyhJunJulAug12 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 AMSpringFallcoolcoolcomfortablewarm
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.

Ciudad Nezahualcoyotl, Mexico (8,759 miles away) and Chinique, Guatemala (8,479 miles) are the far-away foreign places with temperatures most similar to Adi Keyh (view comparison).

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The summer in Adi Keyh experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 62% to 77%. The highest chance of overcast or mostly cloudy conditions is 85% on July 27.

The clearest day of the summer is June 1, with clear, mostly clear, or partly cloudy conditions 38% of the time.

For reference, on July 27, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 85%, while on November 19, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 80%.

Cloud Cover Categories in the Summer in Adi Keyh

Cloud Cover Categories in the Summer in Adi KeyhJunJulAug0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFallNov 1980%Nov 1980%Jun 138%Jun 138%Aug 3123%Aug 3123%Jul 123%Jul 123%Aug 115%Aug 115%clearovercastpartly cloudymostly 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 Adi Keyh, the chance of a wet day over the course of the summer is very rapidly increasing, starting the season at 8% and ending it at 31%.

For reference, the year's highest daily chance of a wet day is 49% on August 6, and its lowest chance is 2% on February 6.

Probability of Precipitation in the Summer in Adi Keyh

Probability of Precipitation in the Summer in Adi KeyhJunJulAug0%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%50%50%SpringFallAug 549%Aug 549%Jun 18%Jun 18%Aug 3131%Aug 3131%Jul 123%Jul 123%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 summer in Adi Keyh is rapidly increasing, starting the season at 0.6 inches, when it rarely exceeds 1.3 inches or falls below -0.0 inches, and ending the season at 2.1 inches, when it rarely exceeds 4.8 inches or falls below 0.2 inches.

The highest average 31-day accumulation is 3.2 inches on August 7.

Average Monthly Rainfall in the Summer in Adi Keyh

Average Monthly Rainfall in the Summer in Adi KeyhJunJulAug0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 in8 in8 inSpringFallAug 73.2 inAug 73.2 inJun 10.6 inJun 10.6 inAug 312.1 inAug 312.1 inJul 11.4 inJul 11.4 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 summer in Adi Keyh, the length of the day is decreasing. From the start to the end of the season, the length of the day decreases by 32 minutes, implying an average daily decrease of 21 seconds, and weekly decrease of 2 minutes, 29 seconds.

The shortest day of the summer is August 31, with 12 hours, 25 minutes of daylight and the longest day is June 20, with 13 hours, 0 minutes of daylight.

Hours of Daylight and Twilight in the Summer in Adi Keyh

Hours of Daylight and Twilight in the Summer in Adi KeyhJunJulAug0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSpringFallJun 2013 hr, 0 minJun 2013 hr, 0 minnightnightdaydayAug 3112 hr, 25 minAug 3112 hr, 25 minAug 112 hr, 46 minAug 112 hr, 46 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 summer in Adi Keyh is 5:51 AM on June 3 and the latest sunrise is 18 minutes later at 6:10 AM on August 31.

The latest sunset is 6:56 PM on July 7 and the earliest sunset is 22 minutes earlier at 6:34 PM on August 31.

Daylight saving time is not observed in Adi Keyh during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:53 AM and sets 13 hours, 0 minutes later, at 6:54 PM, while on December 21, the shortest day of the year, it rises at 6:43 AM and sets 11 hours, 15 minutes later, at 5:58 PM.

Sunrise & Sunset with Twilight in the Summer in Adi Keyh

Sunrise & Sunset with Twilight in the Summer in Adi KeyhJunJulAug2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSpringFall5:51 AM5:51 AMJun 36:49 PMJun 36:49 PM5:58 AM5:58 AMJul 76:56 PMJul 76:56 PM6:10 AM6:10 AMAug 316:34 PMAug 316:34 PM6:05 AM6:05 AMAug 16:51 PMAug 16:51 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the summer. 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 Summer in Adi Keyh

Solar Elevation and Azimuth in the Summer in Adi KeyhJunJulAug12 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 AMSpringFall001020203030405050606070800010102030304040506060707080
northeastsouthwest
Solar elevation and azimuth in the the summer 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 summer 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 Summer in Adi Keyh

Moon Rise, Set & Phases in the Summer in Adi KeyhJunJulAug12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSpringFallMay 86:23 AMMay 86:23 AMMay 234:54 PMMay 234:54 PMJun 63:38 PMJun 63:38 PMJun 224:09 AMJun 224:09 AMJul 61:58 AMJul 61:58 AMJul 211:18 PMJul 211:18 PMAug 42:14 PMAug 42:14 PMAug 199:26 PMAug 199:26 PMSep 34:56 AMSep 34:56 AMSep 185:35 AMSep 185:35 AM5:52 AM5:52 AM7:09 PM7:09 PM6:48 PM6:48 PM6:14 AM6:14 AM6:58 PM6:58 PM6:34 PM6:34 PM5:56 AM5:56 AM6:07 AM6:07 AM7:38 PM7:38 PM7:14 PM7:14 PM6:49 AM6:49 AM7:05 PM7:05 PM6:42 PM6:42 PM6:36 AM6:36 AM6:17 AM6:17 AM6:54 PM6:54 PM6:00 PM6:00 PM6:17 AM6:17 AM
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 Adi Keyh is essentially constant during the summer, remaining around 0% throughout.

Humidity Comfort Levels in the Summer in Adi Keyh

Humidity Comfort Levels in the Summer in Adi KeyhJunJulAug0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SpringFallJun 10%Jun 10%Aug 310%Aug 310%Jul 10%Jul 10%Aug 10%Aug 10%comfortablecomfortabledrydryhumidhumid
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 Adi Keyh is gradually decreasing during the summer, decreasing from 7.5 miles per hour to 6.8 miles per hour over the course of the season.

For reference, on July 8, the windiest day of the year, the daily average wind speed is 9.9 miles per hour, while on September 18, the calmest day of the year, the daily average wind speed is 6.2 miles per hour.

The highest daily average wind speed during the summer is 9.9 miles per hour on July 8.

Average Wind Speed in the Summer in Adi Keyh

Average Wind Speed in the Summer in Adi KeyhJunJulAug0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphSpringFallJul 89.9 mphJul 89.9 mphJun 17.5 mphJun 17.5 mphAug 316.8 mphAug 316.8 mphAug 19.1 mphAug 19.1 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction in Adi Keyh during the summer is predominantly out of the east from June 1 to June 2 and the west from June 2 to August 31.

Wind Direction in the Summer in Adi Keyh

Wind Direction in the Summer in Adi KeyhEWEJunJulAug0%100%20%80%40%60%60%40%80%20%100%0%SpringFallwestsoutheastnorth
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).

Adi Keyh 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 Adi Keyh is gradually increasing during the summer, rising by 3°F, from 87°F to 90°F, over the course of the season.

Average Water Temperature in the Summer in Adi Keyh

Average Water Temperature in the Summer in Adi KeyhJunJulAug82°F82°F84°F84°F86°F86°F88°F88°F90°F90°F92°F92°FSpringFallJun 187°FJun 187°FAug 3190°FAug 3190°FJul 188°FJul 188°FAug 190°FAug 190°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 Adi Keyh 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 Summer in Adi Keyh

Time Spent in Various Temperature Bands and the Growing Season in the Summer in Adi KeyhJunJulAug0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFall100%Jul 17100%Jul 17coolcomfortablewarmcold
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 Adi Keyh are very rapidly increasing during the summer, increasing by 1,393°F, from 2,149°F to 3,542°F, over the course of the season.

Growing Degree Days in the Summer in Adi Keyh

Growing Degree Days in the Summer in Adi KeyhJunJulAug2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°FSpringFallJun 12,149°FJun 12,149°FAug 313,542°FAug 313,542°FJul 12,675°FJul 12,675°FAug 13,125°FAug 13,125°F
The average growing degree days accumulated over the course of the summer, 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 Adi Keyh is decreasing during the summer, falling by 1.4 kWh, from 6.9 kWh to 5.5 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the summer is 4.8 kWh on August 3.

Average Daily Incident Shortwave Solar Energy in the Summer in Adi Keyh

Average Daily Incident Shortwave Solar Energy in the Summer in Adi KeyhJunJulAug0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSpringFallAug 34.8 kWhAug 34.8 kWhJun 16.9 kWhJun 16.9 kWhAug 315.5 kWhAug 315.5 kWhJul 15.7 kWhJul 15.7 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 Adi Keyh are 14.844 deg latitude, 39.377 deg longitude, and 7,844 ft elevation.

The topography within 2 miles of Adi Keyh contains very significant variations in elevation, with a maximum elevation change of 1,253 feet and an average elevation above sea level of 7,799 feet. Within 10 miles contains very significant variations in elevation (4,885 feet). Within 50 miles also contains extreme variations in elevation (11,280 feet).

The area within 2 miles of Adi Keyh is covered by cropland (45%), shrubs (24%), and grassland (17%), within 10 miles by shrubs (45%) and sparse vegetation (24%), and within 50 miles by shrubs (32%) and sparse vegetation (27%).

This report illustrates the typical weather in Adi Keyh, 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, Asmara Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Adi Keyh.

At a distance of 71 kilometers from Adi Keyh, 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 Adi Keyh 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.

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