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Monthly Rainfall Review

MAY 2015


Malaysia has entered a phase of the Southwest Monsoon season in mid- May. Southwest monsoon is characterized by surface winds blowing steadily from the southwest, where the weather is relatively dry compared to other seasons. During this period, atmospheric conditions are relatively stable. This situation experience will lead to most parts of the country less rainy days.


(i) Peninsular Malaysia

The East Coast of Peninsula of western Kelantan, Terengganu and most of the interior Pahang has received rainfall below average, with total cumulative rainfall of less than 200 mm. The same situation was found to occur in the western state of Selangor and Kedah with anomalous percentage reduction of 20% to over 60 % of the average. At the same time, there are areas that have received a lot of rain. Rural Kelantan, Perak and Melaka has recorded rainfall above the average level with an increase in the percentage of anomalies by 20% to over 60 %. For other regions the average rainfall was recorded. A record number of rainy days in main stations of Peninsular Malaysia shows, Gong Kedak Meteorological Station recorded the fewest number of rainy days of 4 days while Cameron Highlands Meteorological Station recorded the highest of rainy days of 26 days.

(ii) Sarawak


In Sarawak, Miri, Kapit and some interior has received below average rainfall, with total cumulative rainfall of less than 200 mm. Meanwhile, Kuching recorded above average rainfall with anomalous increase of 20% to 40 % of the average. Other areas recorded the average rainfall. Range of the number of rainy days in Sarawak is 13 days recorded in Bintulu Meteorological Station and 22 days in Kuching Meteorological Station.


For Sabah, generally most areas received below average rainfall, with total cumulative rainfall of 200 mm. However, in parts of southern Sabah, Tawau and southern Sabah has received an average rainfall. The range of the number of rainy days is between 4 days recorded in Sandakan Meteorological Station and 21 days in Ranau Meteorological Station.









Monthly Rainfall


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