Situated south of the Tropic of Center, Panyu belongs to the tropical marine monsoon climate of Southern Asia. Its climate features small diurnal range of temperature, abundance in sunshine, plentiful rainfall and apparent distinction between dry and humid seasons. Natural disasters such as tropical storms(typhoons),storm surges, torrential rains, tornados and hail take place occasionally in this region, causing tremendous influence on and great damage to economy, industrial and agricultural productions and transportation.

Fundamental aspects of the climate

Solar radiation
　　The annual total solar radiation flux is 4.593 billion Jm-2.The monthly-averaged solar radiation in July and August reaches a maximum which exceeds 500million J m-2.February has the weakest radiation which is only 235 Jm-2 on average.

Sunshine
　　The averaged sunshine hours for a year is 1807 .6hours. The months from June to December are affluent with sunshine and July reaches a peak value in sunshine hours. The months from February to April have relatively low sunshine and March has the lowest sunshine hours which is only 72.9 hours on average.

Temperature
　　Annually-averaged temperature is 22.2℃.The hottest month is July whose mean temperature is 28.6℃. And the coldest month is January which has a average temperature of 13.9℃.
　　Annually-averaged daily maximum temperature is 26.2℃.On average,118.4 days per year have maximum temperature in excess of 30℃.The number of days whose maximum temperature are in excess of 35℃ average only 2.3 days.
　　Annually-averaged daily minimum temperature is 19.2℃.The number of days whose minimum temperature less than 5℃ average 7.1 days. And an extremely low temperature of -0.4℃ was founded on January 17,1967 in history. This is the only record of temperature below zero degree Celsius.

Precipitation
　　Precipitation averages 1646.9mm per year. April to September is the rainy season, featuring 79.8% of the annual average precipitation. The rainy season can be divided into preceding flood period(April to Jun) and succeeding flood period(July to September).During preceding flood period rains are caused mainly by cold air, while during succeeding flood period rains are mostly brought by typhoons.
　　October to January is the dry season, with a average of less than 90mm per month.

Evaporation
　　The mean evaporation for a year is 1670.1mm which is 45mm greater than the annual mean precipitation. July reaches a maximum evaporation, averaging 190.5mm,while February evaporation only a minimum water of 82.4mm.
Winds
　　 In winter the area is influenced by cold air featuring north winds while in summer by marine monsoon abounding in south winds. The mean wind speed is 2.2m/s. When affected by tropical cyclones or severe convective weathers, the district may observe strong winds in excess of Force 8(≥20m/s).On average, the number of days having strong winds is 3.4 days.

Frosts
　　The annually-averaged number of days of frost are 1.6 days. Frost concentrates in December to February.

Fogs
　　The average number of foggy days are 15.3 days annually. Fog may occur in each month of the year and it appears more frequently in Spring and rarely in Summer.

Thunderstorms
　　On average each year holds 78.3 days of thunderstorms. Thunderstorms may take place in every month, mostly in Summer. Spring is in second place and rarely in winter.
Tropical cyclones(typhoons)
　　Each year 1.3 tropical cyclones on average may land or affect the district. The attack date of the tropical cyclones may range form June to October. The recorded earliest landfall of tropical storm is on May 13,1951 and the last landfall date of tropical cyclone is December 2,1974.

Storm surges
　　Tropical cyclones can bring storm surge, when overlapped with astronomical tides it can cause giant sea wave, causing massive destructions on sea dams. On September 9,1983,the No.9 Typhoon landed at Zhuhai, causing strong storm surge at the month of Pear River. The water level of Panyu on that day rose up to 2.6m.The tide water destructed sea dams and flooded the yard of Panyu Government.

floods
　　successive torrential rains can produce extensive floods that cause damage on mountain ponds, reservoirs, dams and flood the farms, which bring casualty and great economic loss. On June 30 and July 1,1981, the continual torrential rains with daily rainfall of 223.9mm and 171.8mm respectively led to a direct financial loss of 8.2456 million Yuan.

Tornados
　　Tornados is small scale weather system and seldom observed in the history. But according to meteorological statistics, the district was attacked many times in the history. The attack by tornado take place on Apirl 19,1995,between 16:30-17:15 LST. The tornado event caused 10 deaths along with 256 injuries and a loss of 1,260 million Yuan.

Hails
　　According to the records, hails were observed many times in Panyu district. In the afternoon of March 25,1983,hails fell three times in the district, each time lasting 10min,causing heavily break-off of sugarcane plants.

Cold Hazards
　　Cold surges in winter can bring chilly weathers and may have tremendous influence on tropical fruits, vegetables, flowers plantings and aquiculture in this area.