May Weather in Debre Sīna Ethiopia

Daily high temperatures increase by 2°F, from 71°F to 73°F, rarely falling below 64°F or exceeding 78°F.

Daily low temperatures are around 56°F, rarely falling below 51°F or exceeding 60°F. The highest daily average low temperature is 56°F on May 30.

For reference, on June 2, the hottest day of the year, temperatures in Debre Sīna typically range from 56°F to 73°F, while on December 26, the coldest day of the year, they range from 48°F to 66°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. 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.

San Lucas Sacatepéquez, Guatemala (8,653 miles away); Sangolquí, Ecuador (8,150 miles); and Amlimay, Philippines (5,445 miles) are the far-away foreign places with temperatures most similar to Debre Sīna (view comparison).

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The month of May in Debre Sīna experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 60% to 53%. The lowest chance of overcast or mostly cloudy conditions is 52% on May 25.

The clearest day of the month is May 25, with clear, mostly clear, or partly cloudy conditions 48% of the time.

For reference, on July 27, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 65%, while on November 19, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Debre Sīna, the chance of a wet day over the course of May is very rapidly decreasing, starting the month at 31% and ending it at 19%.

For reference, the year's highest daily chance of a wet day is 76% on August 3, and its lowest chance is 5% on December 28.

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during May in Debre Sīna is rapidly decreasing, starting the month at 2.7 inches, when it rarely exceeds 6.8 inches or falls below 0.2 inches, and ending the month at 1.4 inches, when it rarely exceeds 3.5 inches or falls below 0.2 inches.

Over the course of May in Debre Sīna, the length of the day is essentially constant. The shortest day of the month is May 1, with 12 hours, 29 minutes of daylight and the longest day is May 31, with 12 hours, 40 minutes of daylight.

The latest sunrise of the month in Debre Sīna is 6:03 AM on May 1 and the earliest sunrise is 5 minutes earlier at 5:58 AM on May 28.

The earliest sunset is 6:32 PM on May 1 and the latest sunset is 6 minutes later at 6:38 PM on May 31.

Daylight saving time is not observed in Debre Sīna during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:01 AM and sets 12 hours, 42 minutes later, at 6:43 PM, while on December 21, the shortest day of the year, it rises at 6:32 AM and sets 11 hours, 33 minutes later, at 6:05 PM.

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.

The figure below presents a compact representation of key lunar data for May 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.

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 Debre Sīna is essentially constant during May, remaining around 0% throughout.

For reference, on May 2, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

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 Debre Sīna is essentially constant during May, remaining within 0.2 miles per hour of 5.7 miles per hour throughout.

For reference, on October 25, the windiest day of the year, the daily average wind speed is 6.6 miles per hour, while on August 24, the calmest day of the year, the daily average wind speed is 3.7 miles per hour.

The highest daily average wind speed during May is 5.9 miles per hour on May 13.

The hourly average wind direction in Debre Sīna throughout May is predominantly from the east, with a peak proportion of 63% on May 12.

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 Debre Sīna 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.

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 Debre Sīna are increasing during May, increasing by 411°F, from 1,230°F to 1,642°F, over the course of the month.

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 Debre Sīna is essentially constant during May, remaining within 0.1 kWh of 7.0 kWh throughout.

The highest average daily incident shortwave solar energy during May is 7.1 kWh on May 25.

For the purposes of this report, the geographical coordinates of Debre Sīna are 9.848 deg latitude, 39.760 deg longitude, and 8,868 ft elevation.

The topography within 2 miles of Debre Sīna contains extreme variations in elevation, with a maximum elevation change of 3,996 feet and an average elevation above sea level of 8,871 feet. Within 10 miles also contains extreme variations in elevation (8,100 feet). Within 50 miles also contains extreme variations in elevation (10,420 feet).

The area within 2 miles of Debre Sīna is covered by cropland (56%) and shrubs (36%), within 10 miles by cropland (69%) and shrubs (27%), and within 50 miles by cropland (52%) and shrubs (39%).