Planning polyhouse farming in Nilambur? Nilambur is a town in Kerala, home to about 46,000 people (GeoNames)[1][2], about 240 km from Bengaluru. We have used the monthly climate for Nilambur to plan a structure, a growing system and a crop calendar, so you can compare them with your own plot and buyers.
Climate for polyhouse farming in Nilambur
March is the hottest month in Nilambur, with average daily highs of about 38°C. January has the coolest nights, averaging 19°C.[3] The area gets about 1,854 mm of rain a year, most of it in May to November, peaking in July at about 378 mm. Average humidity stays at 75% or more in May to December, which raises the risk of leaf disease and slows evaporative cooling. Nilambur sits about 51 m above sea level.[2] On the Köppen–Geiger climate map, Nilambur falls in the tropical savanna (dry winter) zone (Aw).[4]
Nilambur climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
33.6
18.8
66
4
Feb
36.3
20.0
57
7
Mar
37.9
22.4
58
29
Apr
36.7
24.0
69
73
May
33.5
24.2
80
170
Jun
29.9
23.5
89
372
Jul
28.8
22.9
91
378
Aug
29.0
22.6
91
275
Sep
29.6
22.5
90
203
Oct
30.2
22.4
88
213
Nov
30.3
21.1
85
107
Dec
30.8
19.4
77
23
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Nilambur, adjusted for the town's elevation[5]. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[3]
Advantages of protected cultivation in Nilambur
1
Year-round crops
A polyhouse stretches the season: in Nilambur cucumber can be grown for about 9 months a year under cover, longer than in the open field.
2
Better yield and price
Plants grow without rain, hail and wind damage, so yields are higher and more even, and clean, graded produce sells at a better price, especially off-season.
3
Less water
Drip irrigation under cover uses less water than flood irrigation, and the roof keeps July's 378 mm of rain off the crop and the soil.
4
Less pesticides
Insect net on vents and doors keeps out most pests, and controlled ventilation helps with leaf disease in the humid months (May to December), so you spray less often.
5
Subsidy eligible
Polyhouse, shade net and nethouse projects in Kerala can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department.[6]
Which polyhouse suits Nilambur?
For polyhouse farming in Nilambur, the structure decides which months you can crop and what it costs to run. In Nilambur the heat comes with humidity: during January to May average humidity is about 66%. Wet pads cool much less in humid air: on a typical March afternoon they would only bring 38°C down to about 33°C. So we usually start with a tall naturally ventilated polyhouse with wide roof vents, insect net and a shade screen. A Fan & Pad polyhouse still makes sense if buyers need lettuce through the hottest months, but expect a smaller temperature drop than in dry inland towns.
Plan for heavy rain in July (about 378 mm): raise the plinth, size the gutters for that month and keep drains away from the nutrient tank. Sunlight peaks in March at about 6.4 kWh per m² a day, so add a shade screen for leafy greens in the brightest months.
Crops for Nilambur
Based on Nilambur's climate, the crops with the longest growing windows are cucumber (9 months), capsicum (7 months) and tomato (7 months). Cucumber fits May to January in a naturally ventilated polyhouse. Lilium and chrysanthemum are hard to time here, so we would leave them out of the first season. These are the crops we would plan first for polyhouse farming in Nilambur.
Months each crop suits in Nilambur
Crop
Naturally ventilated polyhouse
With Fan & Pad cooling
Capsicum
Jun–Dec
May–Mar
Tomato
Jun–Dec
May–Mar
Cucumber
May–Jan
All year
Chilli pepper
Jun–Dec
All year
Brinjal
Jun–Dec
All year
Lettuce
Difficult
Jun–Jan
Broccoli
Difficult
Difficult
Strawberry
Difficult
Difficult
Rose
Difficult
Nov–Jan
Gerbera
Difficult
Jun–Jan
Carnation
Difficult
Difficult
Chrysanthemum
Difficult
Nov–Jan
Anthurium
Jun–Sep
May–Feb
Orchids
Jun–Sep
May–Feb
Lilium
Difficult
Difficult
Kryzen planning estimate from the monthly averages above and each crop's usual day and night temperature range. Variety, soil or substrate temperature and shading change the result, so confirm with a trial.
₹7,834Spending per person per month, urban Kerala, 2023–24[7]
240 kmto Bengaluru, the nearest metro (straight line)
Urban households in Kerala spent an average of ₹7,834 per person per month in 2023–24, above the all-India urban average of ₹7,078.[7] Local demand in Nilambur may be small for exotic greens, so plan where the rest of the harvest goes. Kozhikode, about 50 km away, is the nearest larger market on our list. For premium vegetable and flower buyers, Bengaluru is within a day's delivery, about 240 km away.
Polyhouse farming in Nilambur with Kryzen
Nilambur is about 780 km in a straight line from our factory and master warehouse at Degaon, Wai (Satara), our nearest site.
Towns near Nilambur
We also plan and build farms in these towns near Nilambur:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Nilambur: FAQs
Can a polyhouse farm run all year in Nilambur?
Yes, with the right structure. For Nilambur we would plan a tall naturally ventilated polyhouse with wide vents and insect net. Even then, lettuce is hard to grow in February to May, so plan another crop for those months.
Which polyhouse is best for Nilambur?
With March highs of about 38°C and 58% average humidity in that month, we would start with a tall naturally ventilated polyhouse with wide vents and insect net.
Which crops should I grow in a polyhouse in Nilambur?
Going by the monthly climate, cucumber, chilli pepper and brinjal have the longest growing windows. Confirm prices and volumes with buyers before you plant.
Is polyhouse farming profitable in Nilambur?
It can be, if the crop, the structure and the buyers match. In Nilambur, cucumber and capsicum have the longest seasons under cover. Confirm prices and volumes with buyers first; our Detailed Project Report works out the cost, yield and returns for your plot.
Does Kryzen build polyhouses in Nilambur?
Yes. Our nearest site is our factory and master warehouse at Degaon, Wai (Satara), about 780 km away.
Is there a subsidy for polyhouse or hydroponic farms in Kerala?
Yes. Protected cultivation projects in Kerala can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department. Check the current rate and area limit when you apply.
Discuss your Nilambur farm project
Share your plot location, water test and crop targets. We will suggest the right structure and growing system, and send an itemised quotation.
A computer engineer turned hydroponic farmer from a multigenerational farming family in Satara. Sudhir founded Kryzen in 2019, and the team has since built 350+ protected and hydroponic farms across India.
