October Weather in Bir el Ater Algeria
Daily high temperatures decrease by 10°F, from 78°F to 68°F, rarely falling below 61°F or exceeding 87°F.
Daily low temperatures decrease by 9°F, from 60°F to 51°F, rarely falling below 45°F or exceeding 66°F.
For reference, on July 18, the hottest day of the year, temperatures in Bir el Ater typically range from 69°F to 94°F, while on January 12, the coldest day of the year, they range from 36°F to 52°F.
Average High and Low Temperature in October in Bir el Ater
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on October. 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 October in Bir el Ater
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
Good Hope, Alabama, United States (5,178 miles away); Charlotte, North Carolina, United States (4,844 miles); and Yangzhong, China (6,268 miles) are the far-away foreign places with temperatures most similar to Bir el Ater (view comparison).
The month of October in Bir el Ater experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 38% throughout the month. The highest chance of overcast or mostly cloudy conditions is 40% on October 22.
The clearest day of the month is October 1, with clear, mostly clear, or partly cloudy conditions 64% of the time.
For reference, on October 22, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 40%, while on July 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 96%.
Cloud Cover Categories in October in Bir el Ater
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. In Bir el Ater, the chance of a wet day over the course of October is gradually decreasing, starting the month at 13% and ending it at 10%.
For reference, the year's highest daily chance of a wet day is 15% on September 16, and its lowest chance is 3% on July 16.
Probability of Precipitation in October in Bir el Ater
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 October in Bir el Ater is essentially constant, remaining about 0.7 inches throughout, and rarely exceeding 1.9 inches or falling below 0.1 inches.
Average Monthly Rainfall in October in Bir el Ater
Over the course of October in Bir el Ater, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 2 minutes, implying an average daily decrease of 2 minutes, 4 seconds, and weekly decrease of 14 minutes, 28 seconds.
The shortest day of the month is October 31, with 10 hours, 47 minutes of daylight and the longest day is October 1, with 11 hours, 49 minutes of daylight.
Hours of Daylight and Twilight in October in Bir el Ater
The earliest sunrise of the month in Bir el Ater is 6:22 AM on October 1 and the latest sunrise is 25 minutes later at 6:47 AM on October 31.
The latest sunset is 6:11 PM on October 1 and the earliest sunset is 37 minutes earlier at 5:34 PM on October 31.
Daylight saving time is not observed in Bir el Ater during 2021.
For reference, on June 21, the longest day of the year, the Sun rises at 5:14 AM and sets 14 hours, 29 minutes later, at 7:44 PM, while on December 21, the shortest day of the year, it rises at 7:31 AM and sets 9 hours, 49 minutes later, at 5:20 PM.
Sunrise & Sunset with Twilight in October in Bir el Ater
The figure below presents a compact representation of key lunar data for October 2021. 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 October in Bir el Ater
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 Bir el Ater is essentially constant during October, remaining around 0% throughout.
For reference, on August 25, the muggiest day of the year, there are muggy conditions 1% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in October in Bir el Ater
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 Bir el Ater is essentially constant during October, remaining within 0.1 miles per hour of 7.8 miles per hour throughout.
For reference, on April 12, the windiest day of the year, the daily average wind speed is 9.8 miles per hour, while on August 9, the calmest day of the year, the daily average wind speed is 7.2 miles per hour.
Average Wind Speed in October in Bir el Ater
The wind direction in Bir el Ater during October is predominantly out of the east from October 1 to October 5, the north from October 5 to October 10, and the west from October 10 to October 31.
Wind Direction in October in Bir el Ater
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).
The growing season in Bir el Ater typically lasts for 10 months (304 days), from around February 13 to around December 14, rarely starting after March 17, or ending before November 21.
The month of October in Bir el Ater is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in October in Bir el Ater
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 Bir el Ater are increasing during October, increasing by 421°F, from 4,273°F to 4,694°F, over the course of the month.
Growing Degree Days in October in Bir el Ater
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 Bir el Ater is decreasing during October, falling by 1.2 kWh, from 5.1 kWh to 3.9 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in October in Bir el Ater
For the purposes of this report, the geographical coordinates of Bir el Ater are 34.745 deg latitude, 8.060 deg longitude, and 2,917 ft elevation.
The topography within 2 miles of Bir el Ater contains significant variations in elevation, with a maximum elevation change of 564 feet and an average elevation above sea level of 2,893 feet. Within 10 miles contains significant variations in elevation (2,385 feet). Within 50 miles contains large variations in elevation (5,843 feet).
The area within 2 miles of Bir el Ater is covered by sparse vegetation (43%), bare soil (35%), and artificial surfaces (22%), within 10 miles by sparse vegetation (79%) and bare soil (19%), and within 50 miles by bare soil (45%) and sparse vegetation (27%).
This report illustrates the typical weather in Bir el Ater, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Bir el Ater.
For each station, the records are corrected for the elevation difference between that station and Bir el Ater 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 Bir el Ater is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Bir el Ater and a given station.
The stations contributing to this reconstruction are: Tebessa (DABS, 45%, 77 kilometers, north); Gafsa – Ksar International Airport (DTTF, 32%, 79 kilometers, southeast); and Tozeur–Nefta International Airport (DTTZ, 23%, 90 kilometers, south).
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 © 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.