Hi, planning to visit Taipei from 4 Aug to 7 Aug. How is the weather like?

Firstly, you should know that it is still during the typhoon season in early Aug. so typhoon is likely to happen. Anyway, according to the weather records, it will be hot and the average temp shall be around 30C. And you may meet both sunny and rainy days (probably rainstorm) then. Prepare summer clothes and rain gear.