Vegetable supply in the monsoon: how to plan for November to February
Every year the north-east monsoon brings the heaviest rain of the year to the east coast of Peninsular Malaysia. For a buyer the question is not whether supply tightens, but how early you know and what you agreed in advance.
What the monsoon brings
The north-east monsoon brings the year’s heaviest rainfall to the east-coast states of Peninsular Malaysia. Over Kelantan it runs from November to February and peaks in December and January. In some years low-lying areas flood and roads close for days at a time.
For a farm this means fewer days on which the crop can be picked and moved, not a single bad week. Planning has to start months earlier, at planting.
What it does to vegetables
Waterlogged ground stresses roots and slows growth. Humid, wet weather raises disease pressure in the field, fruit splits or rots on the plant, and picking windows are lost when it rains through the morning. When roads flood, a harvest that is ready may still not reach the buyer on time.
Growing in polybags with drip fertigation keeps roots out of standing water and the feed under control, which helps. It does not remove the effect of weeks of rain. Any supplier who promises unchanged monsoon volumes is promising something the weather decides.
How Nusatani plans around it
Planting is scheduled across six farms so that the blocks most exposed to rain are not all carrying the same crop at the same time. In the monsoon months harvests fall by 50 to 60 per cent across all lines. Every line stays available; buyers with fixed volumes booked regularly at a fixed price are served first, and we tell them in writing which weekly volume we can hold.
We do not import to fill a gap. One shipment of bought-in produce would break the traceability every carton is sold on. If we cannot supply, we say so before the delivery day, not on it.
What to agree before October
Five points belong in a contract that runs through the monsoon: a realistic weekly volume for November to February, separate from the main season; the substitutions you accept, by crop and by grade; how much flexibility you have on delivery days; how the price is held for the contract period; and how much notice you get when a delivery will be short.
Buyers who agree these points in September plan their menus and production runs around them. Buyers who do not find out in December.
After the rains
From February the weather settles and the blocks recover. The main supply window runs from March to September, and because we plant against contracted volume, the blocks for that window are allocated by January and February.
The best time to talk about next year’s main season is during the monsoon, when you already know what you missed.
Questions buyers ask
Does supply stop completely during the monsoon?+
No. Harvests fall by 50 to 60 per cent across all lines and some days are lost to rain or flooded roads, but harvesting continues, and buyers with fixed volumes booked regularly at a fixed price are served first. What changes is how much can be promised, which is why we agree monsoon volumes separately.
Can I lock a price for the monsoon months?+
Prices are agreed per grade and held for the contract period, including the monsoon months. What we do not promise is an unchanged volume.
When should I contract for the March to September window?+
Before the end of the year. The blocks for the main window are allocated by January and February; after that we quote from what is left rather than from your specification.
Related produce
Questions about this? Ask us directly.
The answer comes from the people who grow, grade and pack the produce — usually on the same day.