Of all the natural disasters in Malaysia, floods are the most frequent, accounting for approximately 63% of all disasters and bringing the highest damage annually (Figure 1). It is the main cause of damages to coastal regions, especially in low-lying areas.
Penang is identified as one of the flood-prone areas in Malaysia.1 Since 2014, the north-east district has seen more flood incidences compared to the other districts in Penang (Figure 2).
On average, an annual rainfall of 2,633mm was recorded for Penang in 2017.2 The driest weather was in February when an average of about 73mm of rainfall occurred, while the wettest weather was recorded in September with an average rainfall of about 475mm (Figure 3).
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