Im leaving for a 10-day trip to kunming , dali, lijiang, shangrilla, tiger leaping gorge 15-24 june this year, how do i pack?

Temperature difference is a little bit big. The average temperature is around 16 to 25C in that time.
Rain may easily happen, but it does not last long, so please do not worry about it.

Suncream and sunglass are necessary. Then you can pack some hiking equipments. Hope you can have a nice trip for those places.