Climate and Average Weather Year Round in Karachi Pakistan
In Karachi, the summers are hot, oppressive, arid, and windy; the winters are short, comfortable, and dry; and it is 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.
Based on the beach/pool score, the best times of year to visit Karachi for hot-weather activities are from early March to mid April and from early October to mid November.
Climate in Karachi
The hot season lasts for 3.4 months, from April 1 to July 13, with an average daily high temperature above 91°F. The hottest month of the year in Karachi is June, with an average high of 94°F and low of 84°F.
The cool season lasts for 1.8 months, from December 17 to February 12, with an average daily high temperature below 81°F. The coldest month of the year in Karachi is January, with an average low of 56°F and high of 78°F.
Average High and Low Temperature in Karachi
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
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 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 7 and lasts for 9.1 months, ending around June 12.
The clearest month of the year in Karachi is October, during which on average the sky is clear, mostly clear, or partly cloudy 92% of the time.
The cloudier part of the year begins around June 12 and lasts for 2.9 months, ending around September 7.
The cloudiest month of the year in Karachi is July, during which on average the sky is overcast or mostly cloudy 52% of the time.
Cloud Cover Categories in Karachi
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 Karachi varies throughout the year.
The wetter season lasts 1.9 months, from July 6 to September 2, with a greater than 7% chance of a given day being a wet day. The month with the most wet days in Karachi is July, with an average of 3.2 days with at least 0.04 inches of precipitation.
The drier season lasts 10 months, from September 2 to July 6. The month with the fewest wet days in Karachi is May, with an average of 0.1 days with at least 0.04 inches of precipitation.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Karachi is July, with an average of 3.2 days. 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 in Karachi
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 month with the most rain in Karachi is August, with an average rainfall of 1.3 inches.
The rainless period of the year lasts for 9.3 months, from September 15 to June 25. The month with the least rain in Karachi is May, with an average rainfall of 0.0 inches.
Average Monthly Rainfall in Karachi
The length of the day in Karachi varies over the course of the year. In 2021, 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 in Karachi
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 3.
Daylight saving time (DST) is not observed in Karachi during 2021.
Sunrise & Sunset with Twilight in Karachi
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 Karachi
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 month with the most muggy days in Karachi is July, with 31.0 days that are muggy or worse.
The month with the fewest muggy days in Karachi is January, with 0.9 days that are muggy or worse.
Humidity Comfort Levels in Karachi
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 Karachi experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.1 months, from April 14 to September 18, with average wind speeds of more than 10.8 miles per hour. The windiest month of the year in Karachi is June, with an average hourly wind speed of 14.5 miles per hour.
The calmer time of year lasts for 6.9 months, from September 18 to April 14. The calmest month of the year in Karachi is November, with an average hourly wind speed of 6.9 miles per hour.
Average Wind Speed in Karachi
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.
Wind Direction in Karachi
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 12 to August 5, with an average temperature above 82°F. The month of the year in Karachi with the warmest water is June, with an average temperature of 84°F.
The time of year with cooler water lasts for 2.7 months, from December 23 to March 14, with an average temperature below 75°F. The month of the year in Karachi with the coolest water is February, with an average temperature of 73°F.
Average Water Temperature in Karachi
To characterize how pleasant the weather is in Karachi 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 time of year to visit Karachi for general outdoor tourist activities is from mid November to mid March, with a peak score in the first week of February.
Tourism Score in Karachi
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 Karachi for hot-weather activities are from early March to mid April and from early October to mid November, with a peak score in the last week of October.
Beach/Pool Score in Karachi
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 Karachi 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 Karachi
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
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 Karachi
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 3.0 months, from April 1 to July 2, with an average daily incident shortwave energy per square meter above 6.8 kWh. The brightest month of the year in Karachi is May, with an average of 7.3 kWh.
The darker period of the year lasts for 2.5 months, from November 14 to January 28, with an average daily incident shortwave energy per square meter below 4.9 kWh. The darkest month of the year in Karachi is December, with an average of 4.4 kWh.
Average Daily Incident Shortwave Solar Energy in Karachi
For the purposes of this report, the geographical coordinates of Karachi are 24.906 deg latitude, 67.082 deg longitude, and 125 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 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.