Average Weather in Constantine Algeria
In Constantine, the summers are short, hot, dry, and mostly clear and the winters are long, cold, wet, and partly cloudy. Over the course of the year, the temperature typically varies from 38°F to 94°F and is rarely below 32°F or above 103°F.
Based on the beach/pool score, the best time of year to visit Constantine for hot-weather activities is from late June to early September.
The hot season lasts for 2.9 months, from June 15 to September 10, with an average daily high temperature above 86°F. The hottest day of the year is August 4, with an average high of 94°F and low of 67°F.
The cool season lasts for 4.1 months, from November 20 to March 22, with an average daily high temperature below 62°F. The coldest day of the year is January 20, with an average low of 38°F and high of 54°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
In Constantine, 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 in Constantine begins around June 13 and lasts for 2.8 months, ending around September 8. On July 24, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 94% of the time, and overcast or mostly cloudy 6% of the time.
The cloudier part of the year begins around September 8 and lasts for 9.2 months, ending around June 13. On January 3, the cloudiest day of the year, the sky is overcast or mostly cloudy 49% of the time, and clear, mostly clear, or partly cloudy 51% 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 in Constantine varies throughout the year.
The wetter season lasts 9.1 months, from September 1 to June 5, with a greater than 16% chance of a given day being a wet day. The chance of a wet day peaks at 27% on January 1.
The drier season lasts 2.9 months, from June 5 to September 1. The smallest chance of a wet day is 4% on July 18.
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 27% on January 1.
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. Constantine experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 10 months, from August 15 to June 25, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around December 30, with an average total accumulation of 2.8 inches.
The rainless period of the year lasts for 1.7 months, from June 25 to August 15. The least rain falls around July 23, with an average total accumulation of 0.2 inches.
Average Monthly Rainfall
The length of the day in Constantine varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 41 minutes of daylight; the longest day is June 21, with 14 hours, 39 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:15 AM on June 13, and the latest sunrise is 2 hours, 30 minutes later at 7:45 AM on January 6. The earliest sunset is at 5:18 PM on December 6, and the latest sunset is 2 hours, 37 minutes later at 7:55 PM on June 29.
Daylight saving time (DST) is not observed in Constantine during 2018.
Sunrise & Sunset with Twilight
The perceived humidity level in Constantine, 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 4% of 4% throughout.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Constantine experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 5.8 months, from November 1 to April 26, with average wind speeds of more than 7.7 miles per hour. The windiest day of the year is December 28, with an average hourly wind speed of 8.8 miles per hour.
The calmer time of year lasts for 6.2 months, from April 26 to November 1. The calmest day of the year is September 17, with an average hourly wind speed of 6.6 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Constantine varies throughout the year.
The wind is most often from the north for 5.5 months, from April 17 to October 3, with a peak percentage of 44% on July 21. The wind is most often from the south for 2.4 weeks, from October 3 to October 20, with a peak percentage of 33% on October 14. The wind is most often from the west for 5.9 months, from October 20 to April 17, with a peak percentage of 44% on January 1.
Constantine 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 water temperature experiences some seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.0 months, from July 7 to October 7, with an average temperature above 74°F. The day of the year with the warmest water is August 15, with an average temperature of 78°F.
The time of year with cooler water lasts for 4.5 months, from December 15 to April 30, with an average temperature below 63°F. The day of the year with the coolest water is February 23, with an average temperature of 59°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Constantine 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 Constantine for general outdoor tourist activities are from early May to mid July and from mid August to late October, with a peak score in the third week of September.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Constantine for hot-weather activities is from late June to early September, with a peak score in the first week of August.
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.
The growing season in Constantine typically lasts for 9.7 months (297 days), from around March 1 to around December 24, rarely starting after April 4, or ending before November 26.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Constantine should appear around February 26, only rarely appearing before February 11 or after March 16.
Growing Degree Days
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.3 months, from May 10 to August 19, with an average daily incident shortwave energy per square meter above 6.8 kWh. The brightest day of the year is July 11, with an average of 7.9 kWh.
The darker period of the year lasts for 3.4 months, from November 1 to February 12, with an average daily incident shortwave energy per square meter below 3.5 kWh. The darkest day of the year is December 21, with an average of 2.3 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Constantine are 36.365 deg latitude, 6.615 deg longitude, and 1,916 ft elevation.
The topography within 2 miles of Constantine contains very significant variations in elevation, with a maximum elevation change of 1,414 feet and an average elevation above sea level of 1,860 feet. Within 10 miles contains very significant variations in elevation (3,320 feet). Within 50 miles also contains extreme variations in elevation (5,656 feet).
The area within 2 miles of Constantine is covered by artificial surfaces (59%) and cropland (23%), within 10 miles by cropland (77%), and within 50 miles by cropland (63%) and trees (11%).
This report illustrates the typical weather in Constantine, 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 Constantine.
For each station, the records are corrected for the elevation difference between that station and Constantine 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 Constantine is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Constantine and a given station.
The stations contributing to this reconstruction are: Mohamed Boudiaf International Airport (89%, 10 kilometers, south); Skikda (6%, 70 kilometers, northeast); and Jijel Ferhat Abbas Airport (5.0%, 82 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .