Climate and Average Weather Year Round in Basrah Iraq
In Basrah, the summers are long, sweltering, arid, and clear and the winters are cool, dry, and mostly clear. Over the course of the year, the temperature typically varies from 45°F to 116°F and is rarely below 36°F or above 121°F.
Based on the beach/pool score, the best times of year to visit Basrah for hot-weather activities are from early April to mid May and from late September to late October.
Climate in Basrah
Average Temperature in Basrah
The hot season lasts for 4.1 months, from May 22 to September 25, with an average daily high temperature above 105°F. The hottest day of the year is July 29, with an average high of 116°F and low of 83°F.
The cool season lasts for 3.3 months, from November 25 to March 3, with an average daily high temperature below 74°F. The coldest day of the year is January 12, with an average low of 45°F and high of 64°F.
Average High and Low Temperature in Basrah
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 Basrah
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
In Basrah, 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 Basrah begins around May 23 and lasts for 4.8 months, ending around October 17. On September 9, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 99% of the time, and overcast or mostly cloudy 1% of the time.
The cloudier part of the year begins around October 17 and lasts for 7.2 months, ending around May 23. On December 19, the cloudiest day of the year, the sky is overcast or mostly cloudy 34% of the time, and clear, mostly clear, or partly cloudy 66% of the time.
Cloud Cover Categories in Basrah
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
Basrah does not experience significant seasonal variation in the frequency of wet days (i.e., those with greater than 0.04 inches of liquid or liquid-equivalent precipitation). The frequency ranges from 0% to 10%, with an average value of 4%.
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 10% on January 17.
Daily Chance of Precipitation in Basrah
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. Basrah experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 1.9 months, from December 9 to February 7, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around January 11, with an average total accumulation of 0.7 inches.
The rainless period of the year lasts for 10 months, from February 7 to December 9. The least rain falls around September 8, with an average total accumulation of 0.0 inches.
Average Monthly Rainfall in Basrah
The length of the day in Basrah varies significantly over the course of the year. In 2021, the shortest day is December 21, with 10 hours, 10 minutes of daylight; the longest day is June 21, with 14 hours, 7 minutes of daylight.
Hours of Daylight and Twilight in Basrah
The earliest sunrise is at 4:45 AM on June 11, and the latest sunrise is 2 hours, 1 minute later at 6:46 AM on January 9. The earliest sunset is at 4:47 PM on December 2, and the latest sunset is 2 hours, 8 minutes later at 6:55 PM on July 1.
Daylight saving time (DST) is not observed in Basrah during 2021.
Sunrise & Sunset with Twilight in Basrah
The figure below presents a compact representation of key lunar data for 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.
Moon Rise, Set & Phases in Basrah
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.
Basrah experiences some seasonal variation in the perceived humidity.
The muggier period of the year lasts for 7.5 months, from April 12 to November 26, during which time the comfort level is muggy, oppressive, or miserable at least 3% of the time. The muggiest day of the year is October 27, with muggy conditions 12% of the time.
The least muggy day of the year is February 11, when muggy conditions are essentially unheard of.
Humidity Comfort Levels in Basrah
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 Basrah experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 3.1 months, from May 26 to August 28, with average wind speeds of more than 10.4 miles per hour. The windiest day of the year is June 21, with an average hourly wind speed of 12.9 miles per hour.
The calmer time of year lasts for 8.9 months, from August 28 to May 26. The calmest day of the year is October 23, with an average hourly wind speed of 7.9 miles per hour.
Average Wind Speed in Basrah
The predominant average hourly wind direction in Basrah varies throughout the year.
The wind is most often from the north for 1.8 months, from April 11 to June 5 and for 2.4 weeks, from October 5 to October 22, with a peak percentage of 46% on May 26. The wind is most often from the west for 4.0 months, from June 5 to October 5 and for 5.6 months, from October 22 to April 11, with a peak percentage of 70% on July 5.
Wind Direction in Basrah
Best Time of Year to Visit
To characterize how pleasant the weather is in Basrah 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 Basrah for general outdoor tourist activities are from late February to mid April and from late October to late November, with a peak score in the third week of March.
Tourism Score in Basrah
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 Basrah for hot-weather activities are from early April to mid May and from late September to late October, with a peak score in the second week of October.
Beach/Pool Score in Basrah
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 in Basrah 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 in Basrah
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 in Basrah
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 extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.3 months, from May 16 to August 26, with an average daily incident shortwave energy per square meter above 7.3 kWh. The brightest day of the year is June 19, with an average of 8.3 kWh.
The darker period of the year lasts for 3.1 months, from November 3 to February 7, with an average daily incident shortwave energy per square meter below 4.2 kWh. The darkest day of the year is December 24, with an average of 3.2 kWh.
Average Daily Incident Shortwave Solar Energy in Basrah
For the purposes of this report, the geographical coordinates of Basrah are 30.509 deg latitude, 47.780 deg longitude, and 13 ft elevation.
The topography within 2 miles of Basrah contains only modest variations in elevation, with a maximum elevation change of 128 feet and an average elevation above sea level of 9 feet. Within 10 miles contains only modest variations in elevation (522 feet). Within 50 miles also contains significant variations in elevation (709 feet).
The area within 2 miles of Basrah is covered by artificial surfaces (78%) and shrubs (22%), within 10 miles by herbaceous vegetation (54%) and artificial surfaces (14%), and within 50 miles by bare soil (35%) and herbaceous vegetation (35%).
This report illustrates the typical weather in Basrah, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Basrah.
For each station, the records are corrected for the elevation difference between that station and Basrah 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 Basrah is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Basrah and a given station.
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.