Located in the subtropical zone and in the south to the tropic of cancer, Nanning has a humid subtropical monsoon climate with plenty of sunshine and rainfall and without any snow. Its winter is relatively short while summer is long, so it is warm for most of the time with a mean yearly temperature of 21.6 °C. It is lowest monthly average temperature is 12.8 °C in January and the warmest period is in July and August when the average temperature reaches 28.2 V°C. Hot and humid are the main climate features. Its mean annual precipitation is 1304.2 millimeter and its average relative humidity (RH) is 79%. Generally speaking, seasons here are clearly demarcated; summer is humid while winter is dry. As to spring and autumn, they are normally warm. Endowed with such advantageous climate, Nanning is green for a whole year and it is rich in natural products.