Karachi has an arid climate, albeit a moderate version of this climate. It is located on the coast bordering the Arabian Sea, and as a result, has a relatively mild climate. Karachi has two main seasons; summer and winter, while spring and autumn are very short. The Summer season persists for the longest period during the year. Karachi also receives the rains from July to September (Monsoon). The city experiences a tropical climate encompassing warm winters and hot summers. The humidity levels usually remain high from March to November, while they are very low in winter as the wind direction in winter is north-east. The temperature in winter season sometimes goes below 10 °C and day temperature is about 26 °C. On 27 December 2021, the metropolis broke a 13-year record and experienced the coldest day with the maximum temperature dropping to . Charts January The month of January is the coolest month of the year in the city, with mostly clear skies and a constant N, NE breeze blowing. The influx of very cold and very dry Siberian winds (called "Quetta Waves" in common parlance), bring brief and cold spells to the region, dropping the night temperatures to below 10 degrees Celsius. Western Disturbances from the Persian Gulf and Iran affect the city during this time, bringing with them light rainfall. The highest rainfall during this month was , which was recorded in 1995. The highest temperature of was recorded in January 2018. The average high for the month is 24.6 °C while the average low for the month is a mild 6 °C. The lowest temperature was 0.0 °C February The cold waves can affect the metropolis until the middle of the month, after which a warming trend begins in the city. The relative humidity also tends to increase after the middle of the month. The lowest temperature was on 11 February 1950 and the highest was on 27 February 2016. The highest monthly rainfall of was recorded in 1979. Western depressions can continue to affect the city during this month, often causing overcast skies and light to moderate rainfall. The intensity of rainfall in February is relatively higher compared to the preceding month. The average high for the month is a pleasant 27.7 °C whereas the lows hover around 15 °C. March Weather turns quite warm with the start of March, with increasing humidity and intensity of