Average Weather at Biskra Airport Algeria
At Biskra Airport, the summers are sweltering, the winters are long and cool, and it is dry and mostly clear year round. Over the course of the year, the temperature typically varies from 45°F to 104°F and is rarely below 39°F or above 112°F.
Based on the beach/pool score, the best times of year to visit Biskra Airport for hot-weather activities are from early May to late June and from early September to mid October.
The hot season lasts for 3.1 months, from June 8 to September 10, with an average daily high temperature above 96°F. The hottest day of the year is August 1, with an average high of 104°F and low of 83°F.
The cool season lasts for 3.7 months, from November 17 to March 9, with an average daily high temperature below 70°F. The coldest day of the year is January 12, with an average low of 45°F and high of 62°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
At Biskra Airport, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year at Biskra Airport begins around June 15 and lasts for 2.7 months, ending around September 7. On July 24, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 95% of the time, and overcast or mostly cloudy 5% of the time.
The cloudier part of the year begins around September 7 and lasts for 9.3 months, ending around June 15. On October 11, the cloudiest day of the year, the sky is overcast or mostly cloudy 38% of the time, and clear, mostly clear, or partly cloudy 62% of the time.
Cloud Cover Categories
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. The chance of wet days at Biskra Airport varies throughout the year.
The wetter season lasts 9.6 months, from August 23 to June 10, with a greater than 8% chance of a given day being a wet day. The chance of a wet day peaks at 13% on September 16.
The drier season lasts 2.4 months, from June 10 to August 23. The smallest chance of a wet day is 2% on July 10.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 13% on September 16.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Biskra Airport experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.3 months, from August 30 to June 9, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around November 4, with an average total accumulation of 0.8 inches.
The rainless period of the year lasts for 2.7 months, from June 9 to August 30. The least rain falls around July 21, with an average total accumulation of 0.2 inches.
Average Monthly Rainfall
The length of the day at Biskra Airport varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 49 minutes of daylight; the longest day is June 21, with 14 hours, 30 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:23 AM on June 13, and the latest sunrise is 2 hours, 22 minutes later at 7:45 AM on January 7. The earliest sunset is at 5:25 PM on December 5, and the latest sunset is 2 hours, 29 minutes later at 7:54 PM on June 29.
Daylight saving time (DST) is not observed at Biskra Airport during 2018.
Sunrise & Sunset with 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 perceived humidity level at Biskra Airport, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 3% of 3% throughout.
Humidity Comfort Levels
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 at Biskra Airport experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 3.9 months, from February 15 to June 10, with average wind speeds of more than 8.0 miles per hour. The windiest day of the year is April 12, with an average hourly wind speed of 9.1 miles per hour.
The calmer time of year lasts for 8.1 months, from June 10 to February 15. The calmest day of the year is October 18, with an average hourly wind speed of 7.0 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Biskra Airport varies throughout the year.
The wind is most often from the east for 1.4 months, from May 4 to June 16 and for 2.5 months, from August 17 to November 1, with a peak percentage of 37% on August 17. The wind is most often from the south for 2.0 months, from June 16 to August 17, with a peak percentage of 41% on July 19. The wind is most often from the north for 6.1 months, from November 1 to May 4, with a peak percentage of 45% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is at Biskra Airport throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Biskra Airport for general outdoor tourist activities are from early March to early May and from mid October to mid November, with a peak score in the first week of April.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best times of year to visit Biskra Airport for hot-weather activities are from early May to late June and from early September to mid October, with a peak score in the last week of September.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
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 at Biskra Airport 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
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.
Growing Degree Days
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 experiences significant seasonal variation over the course of the year.
The brighter period of the year lasts for 4.0 months, from April 23 to August 21, with an average daily incident shortwave energy per square meter above 6.8 kWh. The brightest day of the year is July 10, with an average of 7.8 kWh.
The darker period of the year lasts for 3.2 months, from October 31 to February 7, with an average daily incident shortwave energy per square meter below 3.9 kWh. The darkest day of the year is December 16, with an average of 2.9 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Biskra Airport are 34.793 deg latitude, 5.738 deg longitude, and 233 ft elevation.
The topography within 2 miles of Biskra Airport contains only modest variations in elevation, with a maximum elevation change of 121 feet and an average elevation above sea level of 244 feet. Within 10 miles contains only modest variations in elevation (1,496 feet). Within 50 miles contains very significant variations in elevation (7,733 feet).
The area within 2 miles of Biskra Airport is covered by bare soil (70%) and sparse vegetation (26%), within 10 miles by bare soil (68%) and sparse vegetation (22%), and within 50 miles by bare soil (55%) and sparse vegetation (31%).
This report illustrates the typical weather at Biskra Airport, 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
Biskra Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports 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.