Be warned, if you are from Europe (especially England) you will need to acclimatize yourself.
On my first day in Hong Kong I almost passed out walking 20 minutes to work. With an average of 82F in August this year you will feel it. See the weather for Southern China and Kong Hong for proof!
The best way to counteract this is when you turn on your air con at your hotel/home keep it on around 25/6 degrees at night this allows you to get used to the heat a little better!
My friend told me that when he first came to China he constantly had his air conditioning on the lowest setting. He said the next week he spent the next week with it on full heat, as had caught the flu.
Don’t let this happen to you!