As with much of Yunnan province, Tengchong experiences a mild subtropical highland climate. Visitors could travel to Tengchong at any time of the whole year. Tengchong neither has a extremely freezing winter nor a burning summer. Besides, different seasons in Tengchong represent different sceneries.
Spring begins early and remains relatively dry and sunny until May, when there is a dramatic uptick in frequency and amount of rainfall that lasts until late September. Some travelers choose to travel at this time because they could appreciate the growing green and their vitality.
Summers are warm, rainy and generally overcast, with August, the warmest month, averaging 19.9 °C (67.8 °F). Many domestic guests choose to visit Tengchong in this season, because most are free at that time, and also, it is the time to appreciate the wetland and the waterfall.
If you choose to visit Tengchong in autumn, you could experience an abrupt reduction in rainfall and its return to sunniness. The annual mean temperature is 15.10 °C (59.2 °F), while precipitation averages 1,530 mm, around two-thirds of which occurs from June to September. The city receives 2,046 hours of bright sunshine annually; in summer the city is one of the least sunny locations nationally.
Winters are always mild and very dry and sunny, although average lows in January are barely above the freezing mark; January, the coolest month, has a 24-hour average temperature of 8.1 °C (46.6 °F).