December Weather in Barentu Eritrea

Daily high temperatures are around 90°F, rarely falling below 86°F or exceeding 94°F.

Daily low temperatures decrease by 2°F, from 68°F to 66°F, rarely falling below 62°F or exceeding 72°F.

For reference, on April 14, the hottest day of the year, temperatures in Barentu typically range from 77°F to 99°F, while on January 6, the coldest day of the year, they range from 66°F to 90°F.

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

Mansôa, Guinea-Bissau (3,555 miles away) and Sagalo, Mali (3,246 miles) are the far-away foreign places with temperatures most similar to Barentu (view comparison).

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The month of December in Barentu experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 20% to 25%.

The clearest day of the month is December 1, with clear, mostly clear, or partly cloudy conditions 80% of the time.

For reference, on July 28, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 84%, while on November 19, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 82%.

Over the course of December in Barentu, the length of the day is essentially constant. The shortest day of the month is December 21, with 11 hours, 14 minutes of daylight and the longest day is December 1, with 11 hours, 18 minutes of daylight.

The earliest sunrise of the month in Barentu is 6:39 AM on December 1 and the latest sunrise is 15 minutes later at 6:55 AM on December 31.

The earliest sunset is 5:57 PM on December 1 and the latest sunset is 13 minutes later at 6:10 PM on December 31.

Daylight saving time is not observed in Barentu during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:00 AM and sets 13 hours, 1 minute later, at 7:02 PM, while on December 21, the shortest day of the year, it rises at 6:50 AM and sets 11 hours, 14 minutes later, at 6:04 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 December 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 Barentu is essentially constant during December, remaining around 0% throughout.

For reference, on August 21, the muggiest day of the year, there are muggy conditions 91% 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 Barentu is essentially constant during December, remaining within 0.2 miles per hour of 7.8 miles per hour throughout.

For reference, on June 27, the windiest day of the year, the daily average wind speed is 9.6 miles per hour, while on September 19, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.

The hourly average wind direction in Barentu throughout December is predominantly from the east, with a peak proportion of 54% on December 1.

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 Barentu 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 Barentu are rapidly increasing during December, increasing by 814°F, from 9,958°F to 10,771°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 Barentu is essentially constant during December, remaining within 0.1 kWh of 5.9 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 5.8 kWh on December 26.

For the purposes of this report, the geographical coordinates of Barentu are 15.106 deg latitude, 37.591 deg longitude, and 3,310 ft elevation.

The topography within 2 miles of Barentu contains only modest variations in elevation, with a maximum elevation change of 338 feet and an average elevation above sea level of 3,315 feet. Within 10 miles contains only modest variations in elevation (1,962 feet). Within 50 miles contains very significant variations in elevation (4,757 feet).

The area within 2 miles of Barentu is covered by shrubs (27%), grassland (27%), cropland (26%), and artificial surfaces (14%), within 10 miles by sparse vegetation (31%) and shrubs (31%), and within 50 miles by shrubs (35%) and grassland (28%).