Summer - rainfall is at its highest and the weather tends to be hot and humid. Visibility is quite often poor at this time of year due to low cloud and mist and there is also a high possibility of typhoons between June and October.
Winter is usually mild, however temperatures can drop below average.
In general, lightweight clothing should be worn most of the year and warmer clothes are necessary in the cooler months. Carry a lightweight jumper as it can be chillingly cold inside air-conditioned buildings during hot weather.