What's the climate like in Nanhai District, Foshan, Guangdong?

Nanhai District of Foshan City is located in the south of the Tropic of Cancer, in the north-central part of the Pearl River Delta, adjacent to Guangzhou, at 22? 48? ~23? 19? East longitude 1 12? 49? ~ 1 13 15? , with a total area of 1073.82 km2. It belongs to the south subtropical monsoon climate, and its main characteristics are: rain and heat in the same season, wet and cold in spring, long summer without heat, warm, sunny and dry in autumn and winter.

The average annual temperature is 22.2? C January is the coldest, with an average temperature of 13.5? c； July is the hottest, with an average temperature of 29. 1? c； The average temperature from June to September is 27? C. As for the ten-day average temperature, the coldest period in a year is 65438+ 10 to early February, and the ten-day average temperature is between 13.3 and 13.7? C, from the end of February, the temperature gradually increased. Reached a one-year high of 29.2 in mid-July? C, from late July to early August, there will be 29. 1? C, and then the temperature began to drop. Dividing seasons by climate: average climate temperature ≤ 10? C is winter, and the average temperature is ≥22? C is summer, and between them is spring or summer. There is no winter in most local years, and summer is from mid-April to 10. In 2008, most extreme minimum temperatures were in 3? Above C, the lowest record is-1.9? C( 1967 65438+ 10/7). The annual extreme maximum temperature is 39.2? (July 2005 18), 39? All the weather above C occurred after 2004. The historical sequence of annual average temperature shows that the temperature has obviously increased since 1986, and it is higher than the multi-year average after 1997, which is 23? Above C.

The annual average rainfall is 1, 653.0mm, and the annual total rainfall is between 1, 0,400 ~ 2,000mm, with the maximum record of 2343.8mm(2008) and the minimum record of 1, 075.7mm( 1, April to September is the rainy season (flood season), and the total rainfall accounts for 80% of the whole year. The rainfall from May to June is more than 250 mm, which is the most concentrated period in the whole year. The monthly maximum rainfall is 909.2 mm (June 2008) and the daily maximum rainfall is 279.8 mm (1the torrential rain caused by Typhoon No.9908 on August 23rd, 999). Maximum precipitation per hour: 102.6 mm (1994/8/ 14).

The average annual sunshine hours are 1739.6 hours, and the annual sunshine hours are between 1500 ~ 2 100 hours. It is rainy in February and April, and the monthly sunshine hours are only 60-90 hours. There is plenty of sunshine from July to 65438+February, and the sunshine time in July is the most in the whole year. The total sunshine hours over the years show that the annual sunshine hours since 1992 are lower than normal.

The annual average relative humidity is 78%, April is the wettest month, and11~ 65438+February is the driest month. Since the mid-1980s, the relative humidity has gradually decreased. 1995 Up to now, the relative humidity is lower than normal. In 2007-2008, the relative humidity was the lowest in history, only 7 1%.

The monsoon climate in the South China Sea is characterized by the north wind prevailing in autumn and winter and the southeast wind prevailing in spring and summer. The annual average wind speed is 2.2m/s.