Which climate is better, Nansha or Xisha, Hainan?
Nansha sea area is influenced by northeast monsoon and southwest monsoon all the year round.
Every June 1 1 to March of the following year, the northeast monsoon prevails, the wind force is above 6, and the wave height is above 2.5 meters; June-10 is the typhoon season, and the southwest monsoon prevails.
There are many strong winds caused by local low pressure. Nansha sea area is located at the mouth of strong winds in the southwest, which is not only windy, but also sudden, lasting for a long time and having a large wind array.
The monthly average temperature is between 26-30℃, with abundant rainfall, and the annual precipitation is more than 2800 mm.
Xisha Islands is located in the middle of the tropics, with a tropical monsoon climate, hot and humid, but no heat. Taking Yongxing Island as an example, the extreme high temperature is 34.9℃, the extreme low temperature is 15.5℃, the annual average temperature is 26-28℃, and the annual precipitation is above1800 mm. ..
Although the Xisha Islands have four seasons like summer, the extreme maximum temperature is not high.
According to the statistics of meteorological data in recent 30 years, the average number of days with daily maximum temperature ≥35℃ is only 4 days per year.
The extreme maximum temperature in history is only 37℃, which is lower than most parts of the country except Qinghai-Tibet Plateau and Yunnan-Guizhou Plateau.
If the extreme maximum temperature is ≥38℃ as the standard of intense heat, then there is no intense heat in Xisha, which is unexpected.
Although the average relative humidity of each month in the island is above 80% in a year, it feels humid, but the temperature changes gently, and the average monthly temperature is between 24℃ and 29℃, unlike the great difference between winter and summer in inland areas, so there is no heat.
The hottest time in Xisha Islands is from June to August every year, and the average monthly temperature is around 29℃.
The temperature in Xisha Islands is relatively low from June 5438 to February every year, and the monthly average minimum temperature is 22℃.
Xisha Islands is the most vulnerable area to typhoon. There are 7 ~ 8 typhoons affecting Xisha Islands every year, and typhoon rainstorm accounts for about 65% of rainfall.
The annual average wind speed is 5.3m/s.
The annual average relative humidity is 82%, reaching 84% from June to September. At this time, the humidity is high, the temperature is high and the heat is unbearable.
There is almost no fog on the sea.
The current is influenced by the monsoon. In summer, the current is northeast, in winter, it is southwest, and in the east, it is the headwind "rushing" from the north wind to the south.
The annual average temperature of surface seawater is 26.8℃, the highest temperature in June is 29℃, and the lowest temperature in June is 65438+ 10 is 24℃.