Average Weather in Karachi Pakistan
In Karachi, the summers are hot, oppressive, and windy; the winters are short and comfortable; and it is dry and mostly clear year round. Over the course of the year, the temperature typically varies from 55°F to 94°F and is rarely below 49°F or above 100°F.
The hot season lasts for 3.4 months, from April 1 to July 14, with an average daily high temperature above 91°F. The hottest day of the year is June 7, with an average high of 94°F and low of 84°F.
The cool season lasts for 1.9 months, from December 16 to February 12, with an average daily high temperature below 81°F. The coldest day of the year is January 6, with an average low of 55°F and high of 78°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 Karachi, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.
The clearer part of the year in Karachi begins around September 6 and lasts for 9.2 months, ending around June 12. On October 26, 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 June 12 and lasts for 2.8 months, ending around September 6. On July 30, the cloudiest day of the year, the sky is overcast or mostly cloudy 57% of the time, and clear, mostly clear, or partly cloudy 43% of the time.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Karachi varies throughout the year.
The wetter season lasts 1.8 months, from July 6 to September 1, with a greater than 7% chance of a given day being a wet day. The chance of a wet day peaks at 14% on July 30.
The drier season lasts 10 months, from September 1 to July 6. The smallest chance of a wet day is 0% on May 3.
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 14% on July 30.
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. Karachi experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 2.7 months, from June 25 to September 15, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 31, with an average total accumulation of 1.6 inches.
The rainless period of the year lasts for 9.3 months, from September 15 to June 25. The least rain falls around May 5, with an average total accumulation of 0.0 inches.
Average Monthly Rainfall
The length of the day in Karachi varies over the course of the year. In 2017, the shortest day is December 21, with 10 hours, 35 minutes of daylight; the longest day is June 21, with 13 hours, 41 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:41 AM on June 9, and the latest sunrise is 1 hour, 37 minutes later at 7:18 AM on January 13. The earliest sunset is at 5:41 PM on November 29, and the latest sunset is 1 hour, 44 minutes later at 7:25 PM on July 2.
Daylight saving time (DST) is not observed in Karachi during 2017.
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.
Karachi experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 7.8 months, from March 15 to November 9, during which time the comfort level is muggy, oppressive, or miserable at least 27% of the time. The muggiest day of the year is July 26, with muggy conditions 100% of the time.
The least muggy day of the year is January 18, with muggy conditions 2% of the time.
Humidity Comfort Levels
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 Karachi experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.2 months, from April 13 to September 19, with average wind speeds of more than 5.8 miles per hour. The windiest day of the year is June 30, with an average hourly wind speed of 8.0 miles per hour.
The calmer time of year lasts for 6.8 months, from September 19 to April 13. The calmest day of the year is November 27, with an average hourly wind speed of 3.7 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Karachi varies throughout the year.
The wind is most often from the west for 11 months, from January 13 to November 30, with a peak percentage of 92% on May 2. The wind is most often from the north for 1.5 months, from November 30 to January 13, with a peak percentage of 37% on January 1.
Karachi 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 2.8 months, from May 11 to August 6, with an average temperature above 82°F. The day of the year with the warmest water is June 20, with an average temperature of 85°F.
The time of year with cooler water lasts for 2.7 months, from December 22 to March 14, with an average temperature below 75°F. The day of the year with the coolest water is January 31, with an average temperature of 73°F.
Average Water Temperature
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 3.1 months, from March 31 to July 3, with an average daily incident shortwave energy per square meter above 6.7 kWh. The brightest day of the year is May 24, with an average of 7.4 kWh.
The darker period of the year lasts for 2.5 months, from November 13 to January 29, with an average daily incident shortwave energy per square meter below 4.9 kWh. The darkest day of the year is December 20, with an average of 4.3 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Karachi are 24.906 deg latitude, 67.082 deg longitude, and 105 ft elevation.
The topography within 2 miles of Karachi contains only modest variations in elevation, with a maximum elevation change of 177 feet and an average elevation above sea level of 122 feet. Within 10 miles contains only modest variations in elevation (604 feet). Within 50 miles contains significant variations in elevation (3,547 feet).
The area within 2 miles of Karachi is covered by artificial surfaces (100%), within 10 miles by artificial surfaces (76%) and bare soil (14%), and within 50 miles by bare soil (45%) and water (39%).
This report illustrates the typical weather in Karachi, 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 is only a single weather station, Karachi Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Karachi.
At a distance of 8 kilometers from Karachi, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Karachi according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
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.