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==Monthly break up of climate==
==Monthly break up of climate==
The following is the monthly breakup of the weather in Karachi.
The following is the monthly breakup of the weather in Karachi.

====Note====
The Data from the website of [[Pakistan Meteorological Departments]] is not accurate. In somes causes they dont count the quantity of rain or temperatures like in 2009 when 147.5mm rain occured in just 24 hours in August, the website reported this too but now their new page says that 47mm rain occured. While at that time all local newspapers reported that 147.5mm rain occured as told by the Met office. So the data available here is accurate.



==='''January'''===
==='''January'''===

Revision as of 10:32, 8 September 2010

File:Cliamte.jpg
Iconic View Of Karachi

Karachi features an arid climate, albeit a more moderate version of this climate. Karachi is located on the coast and as a result has a relatively mild climate. The level of precipitation is low for most of the year. However, due to the city's proximity to the sea, humidity levels usually remain high throughout the year. The city enjoys mild winters and warm summers. Karachi also receives the tail end of the monsoon rains. Since summer temperatures (the end of April through the end of August) are approximately 30 to 35 degrees Celsius, the winter months (November through March) are the best time to visit Karachi. The month of July generally observes annual monsoon rainfall. December, which is the most popular month for social events such as weddings, fundraisers and charity balls, is frequently the time when most visitors, tourists and expatriates come to Karachi.


Climate data for Karachi, Pakistan
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 32
(90) 		34
(93) 		41
(106) 		44
(111) 		48
(118) 		46
(115) 		43
(109) 		37
(99) 		41
(106) 		42
(108) 		38
(100) 		33
(91) 		48
(118)
Mean daily maximum °C (°F) 25
(77) 		26
(79) 		29
(84) 		32
(90) 		34
(93) 		34
(93) 		33
(91) 		31
(88) 		31
(88) 		33
(91) 		31
(88) 		27
(81) 		34
(93)
Mean daily minimum °C (°F) 13
(55) 		14
(57) 		19
(66) 		23
(73) 		26
(79) 		28
(82) 		27
(81) 		26
(79) 		25
(77) 		22
(72) 		18
(64) 		14
(57) 		13
(55)
Record low °C (°F) 0
(32) 		3
(37) 		7
(45) 		12
(54) 		18
(64) 		22
(72) 		22
(72) 		20
(68) 		18
(64) 		10
(50) 		6
(43) 		1
(34) 		0
(32)
Average precipitation mm (inches) 13
(0.5) 		10
(0.4) 		8
(0.3) 		3
(0.1) 		3
(0.1) 		18
(0.7) 		85
(3.3) 		61
(2.4) 		13
(0.5) 		0
(0) 		3
(0.1) 		5
(0.2) 		222
(8.7)
Source: [1] & [2]

Monthly break up of climate

The following is the monthly breakup of the weather in Karachi.

Note

The Data from the website of Pakistan Meteorological Departments is not accurate. In somes causes they dont count the quantity of rain or temperatures like in 2009 when 147.5mm rain occured in just 24 hours in August, the website reported this too but now their new page says that 47mm rain occured. While at that time all local newspapers reported that 147.5mm rain occured as told by the Met office. So the data available here is accurate.


January

In the month of January, the cold conditions continue in the city and sometimes get very cold due to Western Disturbance. Humidity remains low in January. Rains in this month is light rarely it gets heavy. But the sky remains overcast. The highest rainfall of this month is of 89.3 millimetres (3.52 in) which occurred in 1995.[3] The lowest temperature of 0.0 °C (32.0 °F) was recorded on 21st January 1934.[4] while the highest temperature of 32.8 °C (91.0 °F) was recorded on 16th January, 1965.[5]

February

Till the mid of the month the cold conditions continue but after that the weather becomes mild throughout the month. Like in January the sky remains overcast with drizzle or light rain as a result of western disturbance. Humidity remains between 40-60%. The lowest temperature was 3.8 °C (38.8 °F) on 22nd February, 1984 and highest is 36.1 °C (97.0 °F) on 25th February, 1996.[6] The highest rainfall of 96 millimetres (3.8 in) was recorded in 1979.[7]

March

Till the beginning of March the weather had been turned hot. The lowest temperature ever recorded was 7 °C (45 °F) on 9th March, 1979 and the highest was 41.5 °C (106.7 °F) on 2nd March 2004.[8] Being a hot month there is no rain, yet Drizzle could occur rarely. March is the annual spring season in Karachi after winter, Spring brings beautiful flowers in the city that light up the mood of citizens, Many flowers shows are also held in the city in March. A weather system dumped 130 millimetres (5.1 in) rain in 1967, which is March's highest rainfall for the city.[9]

April

The heatwave of March continues in April as well. Temperature starts to increase and weather remains dry and hot. The Humidity remains between 65-75%. Highest temperature during the month is 43.4 °C (110.1 °F) which was recorded on 30th April, 2002 while the lowest temperature of 12.2 °C (54.0 °F) was recorded on 29th April, 1967.[10] Rain is uncommon in this month being dry and hot. The highest rainfall of 47.6 millimetres (1.87 in) was recorded in 1985.[11]

May

May is the hottest month of Karachi with temperatures sometimes above 40 °C. The hottest May was on 22nd May, 1981 when temperatures touched 46 °C (115 °F).[12] The humidity is quite high in this month as well between 70–80%. The rainfall remains rare during this month and the sky remains cloudless. In 1999, 2001 two major cyclones were formed that came close to Karachi, with 1999 Cyclone (the fourth strongest cyclone of Arabian Sea) hitting close to Karachi, While the 2001 India cyclone (the third strongest cyclone of Arabian sea) making landfall near Indian border. Cyclone Phet was also formed in May at about 1100km away from Karachi.

June

Drizzle is common in June as Pre-Monsoon rain.

Temperatures of May continue in June as well with slight decrease. The highest temperature of June was 47 °C (117 °F) that occurred on 18th June, 1979.[13] Humidity remains high in his month. In the middle of June Pre-Monsoon rains start that breaks the heat spell. Storms like Tropical cyclones or Tropical Depression form close to the sea of Karachi in this month, like in 2007 Cyclone Yemyin created Havoc in the city with strong windstorms of 69 mph and rainstorms killing 200 people, Although the storm passed near Karachi and hit Balochistan Province its remnants caused heavy rains in the coming weeks in Karachi. The cyclone also produced heaviest rainfall for June in 2007 which broke all previous record for June, which was about 110.5 millimetres (4.35 in) while the average rainfall is less than 20 mm. On June 6, 2010, Cyclone Phet came close to the coast of Karachi, at about 50 km away from the city after a week long journey. Phet produced very Heavy rainfall in the city which broke the previous record of June made in 2007, about 150 millimetres (5.9 in) rain with 35 mph winds occurred due to Phet. Humidity in this month remains between 75–85%. More over in the evening winds from south west direction blow from the Sea causing drizzle with cloudy weather.

July

File:July floods karachi (1).jpg
Flooded road in the city

In the month of July, Monsoon reaches its peak and produces heavy to very heavy rainfall, like in June sky remains overcast with only 3 to 4 hours of sunlight a day, With occasional drizzle at night or early morning. Two or Three rainstorms is common in this month that continue for three days to half week. The highest temperature of 42.2 °C was recorded in 1958. The highest rainfall for July is 429.3 mm (16.90 in) that occurred in 1967. In 2003, a monsoon low pressure created flood like situation in Sindh Province, with continuous spells of rain in Karachi at least 201mm rain was recorded. On July 18, 2009, there was severe flooding, in which heavy rainfall of 205 mm (8.1 in) occurred[14], killing 20 and injuring 150 people, the highest rainfall of 207 mm (8.1 in) in 24 hours was recorded on July 1st,1977.[15] This rain is also considered karachi's fastest rain yet that occurred in just three hours. Humidity in July remains high between 80–90% causing discomfort to the people specially during rush hour. But in the evening just like Mid-June, cool winds blow from the sea in South West direction with light drizzle making the weather pleasant.In Evening times, Cirrus clouds can be seen daily coming from eastern regions indicating Monsoon presence.

August

File:July (1)karachi.jpg
Heavy rains lashing the port city

The weather of August is identical to that of July. One or two weather systems lash the city in this month that cause significant floodings but less as compared to July. During the month of August the intensity of rainfall continues and heavy rains are not uncommon throughout the month. In 2006 after two years of drought period that is 2004 and 2005, Widespread rainfall of 60 millimetres (2.4 in) occurred in the city that broke the drought period. On 10th August, 2007 a very strong tropical depression produced 167 millimetres (6.6 in) rain that continued for three days with intense thunderstorms and then just five days later again another monsoon low produced 81 millimetres (3.2 in) rain on 22nd August, 2007. Then the monsoon starts to get weak from the last week of August but still has the potential to cause heavy rains in the city as on 31st Augsut 2009, when 147.5 millimetres (5.81 in) rain was recorded. But historical events has shown that monsoon withdraws from Karachi during last days of August. The highest rainfall for August is 262.5 millimetres (10.33 in) that occurred in 1979 and the highest temperature in 41.7 °C (107.1 °F) on 9th August, 1965.

September

First Week of September can have some good rains because after the first week of September monsoon completely withdraws from the city. The sky remains sunny and dry. With slight decrease in humidity that is between 70–80% but increase in temperatures. Rain in this month is rare as there are no clouds in this month. During the year of 2004 the city received no significant rains except for few drizzle with the exception of heavy rain which occurred in September due to Cyclone Onil. On 1st September, 2008 69 millimetres (2.7 in) of rain occurred in 24 hours.[16] But that is very rare in some cases very uncommon. The highest rainfall for September is 166.4 millimetres (6.55 in) that occurred in 1961.[17] The highest temperature is 42.2 °C (108.0 °F) thar occurred on 10th September, 1962.[18]

October

Beautiful Sunset in Karachi

October is the driest month of the city, with the highest temperature of 42.6 °C (108.7 °F) was recorded on 10th October 2001.[19] Morning is hazy and the winds are calm, the sky remains clear with hot conditions.

November

November has hot days while cool nights. Weather remains hot and dry. The mid-November is just like October due to Autumn. While during the last weeks of November there is a gradual decrease in temperature and thus winter begins, but it is not that cold and people enjoy this weather as first weeks of November is hot and the last week of November is cold. Showers occur in this month due to Western Disturbance and causes the temperatures to decrease. The highest rainfall for November is 30.2 millimetres (1.19 in) which occurred in 1963.[20] While the highest and lowest temperatures are 38.5 °C (101.3 °F) recorded on 2nd November, 1994 and 7.4 °C (45.3 °F) recorded on 30th November, 1986 respectively.[21]

December

The month of December is the annual winter month, but winter becomes more strong in January. In December weather remains cool. Sky remains cloudy for some time of the month causing temperatures to decrease. Rainfalls are common in the city during the month of December due to western disturbance coming from mediterranean sea. The highest monthly rainfall of 63.6 millimetres (2.50 in) was recorded in 1980 while the lowest temperature for December is 1.3 °C (34.3 °F) that occurred on 14th December, 1986.[22]

List of Cyclones that Effected Karachi and Sindh Coast

Cyclones that form in the Arabian Sea not always hit the Karachi or the sindh coast. During 1999, 2007 and 2010, only in these year cyclones directly affected the sindh coast including Karachi. While other cyclones that are listed below caused rains as a remnants.

  • In 1965, a powerful cyclone hit the city with 10,000 casualties.
  • In 1998, remnants of category 3 1998 Gujarat cyclone (5th strongest cyclone of Arabian sea) killed 12 people near and in the city
  • In 1999, again a category 3 1999 Pakistan cyclone (4th strongest cyclone of Arabian Sea) hit near the city at the same place as 1998 Gujarati Cyclone, this Cyclone killed 700 people in Sindh including Karachi, this cyclone is the strongest cyclone of Pakistan.
  • In 2001, A powerful category 3 Cyclone 2001 India cyclone (3rd strongest cyclone of Arabian Sea) hit Indian border of Gujarat,But it caused rain along the Sindh coast and no damage was reported.
  • In 2004, a cyclonic storm Cyclone Onil hit Indian border of Gujarat but its remnants caused heavy rain that killed 9 people in Karachi.
  • In 2007, a cyclonic storm Cyclone Yemyin passed near the city and hit Balochistan Province, it killed 380 people in Balochistan and 200 in Karachi city.
  • In 2010, Cyclone Phet (2nd strongest cyclone of Arabian Sea) once a powerful category 4 cyclone, it made lanfall near the city as a tropical depression, with a total of 14 casualties in and near the city.

Monsoon rainfall For Karachi

Note that the annual rainfall for Karachi is 200mm and the highest annual rainfall ever recorded was in 1967 that is 711.5mm (Jan-Dec) , while annual Monsoon rains for Karachi amount to 146.5mm and the highest annual monsoon rainfall (June-August) was recorded in the year 2007 that was 435.4mm rainfall. But due to Global Warming there has been dramatic change in the climate examples can be seen in the year 2003, 2006, 2007 and 2009. The following is the annual monsoon rainfall for last few monsoons seasons (July–August).

  • In 2003, a total of 407.5 millimetres (16.04 in) rainfall was recorded.
  • In 2004, a total of 39.7 millimetres (1.56 in) rainfall was recorded.
  • In 2005, a total of 56.5 millimetres (2.22 in) rainfall was recorded.
  • In 2006, a total of 236.7 millimetres (9.32 in) rainfall was recorded
  • In 2007, a total of 435.4 millimetres (17.14 in) rainfall was recorded.
  • In 2008, a total of 95.5 millimetres (3.76 in) rainfall was recorded.
  • In 2009, a total of 426.1 millimetres (16.78 in) rainfall was recorded.
  • In 2010, a total of 652.7 millimetres (25.70 in) rainfall was recorded as of 1st September evening. (2010 Monsoon still active)

Timeline for Rains in 2010 Monsoon

Though the monsoon rains of 2010 in karachi did not create havoc in the city. But the number of days of rain was greater in 2010 monsoon while the intensity was moderate to heavy. Like in 2009 the number of days of rain were less but the intensity was heavy to very heavy. Only in 2007 the number of days and the intensity of rains was very heavy to very strong. In monsoon 2010 up to 152mm rain occurred during the first week of June due to Cyclone Phet. Later during the first week of July Pre-monsoon rain occurred on Monday(7mm),Tuesday(9.8mm) and on Wednesday(45mm). Then mositure coming from the Arabian sea caused drizzle that was 5mm, then a weak Mid-Circulation caused 11mm. Then during the mid-July monsoon low produced heavy rains in the city that is on Monday(55mm), Tuesday(94mm), Wednesday(37mm), Thursday(22mm). Another Low pressure from Bay of Bengal (although the low pressure move towards south of Punjab and Upper Sindh areas later) in the city caused 3mm rain on 1st august. Then again a new monsoon low produced (66.8mm on Saturday), (70mm on Sunday), (60mm on Monday) during the first week of August. While a weak low pressure over the upper parts of the country caused 3 mm rain on 15th and again 3.1mm rain on 16th evening. Then a westerly wave interacted with monsoon currents in the upper parts of the country that caused 4mm rain on 24th august here. On 1st september a monsoon low from indian state of Gujarat approached Sindh coast and caused 5mm rain with strong winds and thunder. Thus astonishly 652.7mm rain has been recorded.

Pakistan Meteorological Departments in Karachi

See also

References

  1. ^ met.gov.pk
  2. ^ bbc.co.uk/weather
  3. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  4. ^ http://www.pakmet.com.pk/cdpc/extrems/KARACHI.htm
  5. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  6. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  7. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  8. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  9. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  10. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  11. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  12. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  13. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  14. ^ http://www.pakmet.com.pk/FFD/index_files/rainfalljuly09.htm
  15. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  16. ^ http://www.pakmet.com.pk/FFD/index_files/rainfallsep09.htm
  17. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  18. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  19. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  20. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  21. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt
  22. ^ http://www.pakmet.com.pk/cdpc/Climate/Karachi_Climate_Data.txt

External links

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