Durian Growth and Production Analysis

Durian production is greatly influenced by the seasons of the north-east and south-west monsoons. The tree requires a dry season for flowering (two to four weeks) and wet weather for fruit ripening. The durian growing areas in Peninsular Malaysia can be divided into 3 regions influenced by the monsoons and the change from wet to dry weather and the effect of a dry spell.
Region 1 or North Region covering the states of Perlis, Kedah, Penang and northern Perak has a wet weather from August to November and a dry weather from December to February. Generally the main durian flowering season is from January to March. Sometimes there may be a short dry spell about June which may or may not give a second flowering season in July or August according to its intensity and locality. The main durian fruiting season is usually centered around June-July. However, some localized areas in Seberang Jaya (Pantai Acheh) may see the durians ripening as early as late April. In Penang Island (Balik Pulau and Telok Bahang) and the eastern region of Kedah comprising Padang Terap, Sik and Baling, the durian season starts in May, peaks in July and ends in August. Northern Perak's durian season is usually in June.
Region 2 or West, Central and South Region compries southern Perak, Selangor, Negeri Sembilan, Malacca, Pahang and Johore. This region usually has two dry spells of 2-3 weeks in January-February and July-August with the wet weather occuring from October to December. Thus, there tend to be two durian flowering seasons, February-April and July-September, and two fruit seasons with the main season from June to August and the smaller off season in December-January. The main durian growing areas in Region 2 includes the famous Balik Pulau in Penang; Parit, Kuala Kangsar and Batang Padang in Perak; Jasin in Malacca; and Segamat, Muar and Batu Pahat In Johore. Pahang is best represented by Bentong, Raub, Lipis and Temerloh while Jerantut has only one durian season in December-January.
Region 3 is the East Coast stretching from Kelantan in the north, down south through Terengganu, coastal region of Pahang to Kota Tinggi in Johore. There is only one durian season from July to September as the main flowering season is between March and June. The weather is wet during the first half of the N.E. Monsoon, from October to January, and moderately dry during the rest of the year.
Source:Durian Seasons In Durian Production Areas