Civil/military airport serving the Butterworth and Penang Island.

Climatology

Tropical Rainforest climate (Köppen climate classification Af) - almost no distinct seasons, average daily temperature around 27°C throughout the year. Extensive cloud cover and heavy rainfall prevent temperatures from rising much over 33°C. The diurnal temperature change is between 2°C and 5°C which is greater than the annual temperature range of 2°C. Rainfall is heavy and is usually convectional and in the afternoon.