Planning polyhouse farming in Sattur? Sattur is a small town in Virudhunagar district, Tamil Nadu, home to about 32,000 people (GeoNames)[1][2], about 400 km from Bengaluru. Below we use the town's monthly temperatures, humidity and rainfall to work out which structure fits, which crops to grow and in which months, before you spend on construction.
Climate for polyhouse farming in Sattur
March is the hottest month in Sattur, with average daily highs of about 37°C. January has the coolest nights, averaging 19°C.[3] The area gets about 1,055 mm of rain a year, most of it in May and September to November, peaking in October at about 220 mm. Average humidity stays at 75% or more in October to December, which raises the risk of leaf disease and slows evaporative cooling. Sattur sits about 56 m above sea level.[2] On the Köppen–Geiger climate map, Sattur falls in the tropical savanna (dry summer) zone (As).[4]
Sattur climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
31.0
19.1
73
11
Feb
34.2
20.4
63
14
Mar
36.5
23.0
59
29
Apr
36.4
25.1
62
62
May
34.9
25.1
68
107
Jun
33.5
23.9
70
70
Jul
33.5
23.6
68
77
Aug
33.5
23.2
70
82
Sep
33.3
23.2
72
114
Oct
31.4
23.1
78
220
Nov
29.0
21.9
85
203
Dec
28.8
20.2
83
66
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Sattur. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[3]
Advantages of protected cultivation in Sattur
1
Year-round crops
A polyhouse stretches the season: in Sattur cucumber can be grown for about 8 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 October's 220 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 (October to December), so you spray less often.
5
Subsidy eligible
Polyhouse, shade net and nethouse projects in Tamil Nadu can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department.[5]
Which polyhouse suits Sattur?
For polyhouse farming in Sattur, the structure decides which months you can crop and what it costs to run. In Sattur the heat comes with humidity: during February to September average humidity is about 67%. Wet pads cool much less in humid air: on a typical March afternoon they would only bring 37°C down to about 32°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 October (about 220 mm): raise the plinth, size the gutters for that month and keep drains away from the nutrient tank. Sunlight peaks in March at about 6.3 kWh per m² a day, so add a shade screen for leafy greens in the brightest months. A nethouse, the lowest-cost option, can grow hardy crops in December to January and June to August, when it is mild and fairly dry.
Crops for Sattur
Based on Sattur's climate, the crops with the longest growing windows are cucumber (8 months), chilli pepper (4 months) and brinjal (4 months). Cucumber fits June 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 Sattur.
Months each crop suits in Sattur
Crop
Naturally ventilated polyhouse
With Fan & Pad cooling
Capsicum
Nov–Jan
All year
Tomato
Nov–Jan
All year
Cucumber
Jun–Jan
All year
Chilli pepper
Oct–Jan
All year
Brinjal
Oct–Jan
All year
Lettuce
Difficult
Oct–Jan
Broccoli
Difficult
Difficult
Strawberry
Difficult
Difficult
Rose
Difficult
Dec–Jan
Gerbera
Difficult
Oct–Jan
Carnation
Difficult
Difficult
Chrysanthemum
Difficult
Dec–Jan
Anthurium
Nov–Dec
All year
Orchids
Nov–Dec
All year
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.
₹8,325Spending per person per month, urban Tamil Nadu, 2023–24[6]
400 kmto Bengaluru, the nearest metro (straight line)
Urban households in Tamil Nadu spent an average of ₹8,325 per person per month in 2023–24, above the all-India urban average of ₹7,078.[6] Local demand in Sattur may be small for exotic greens, so plan where the rest of the harvest goes. Sivakasi, about 20 km away, is the nearest larger market on our list.
Polyhouse farming in Sattur with Kryzen
We have built 9 projects in Tamil Nadu so far (see our project map (opens in a new tab)). Sattur is about 1,050 km in a straight line from our factory and master warehouse at Degaon, Wai (Satara), our nearest site.
Towns near Sattur
We also plan and build farms in these towns near Sattur:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Sattur: FAQs
Can a polyhouse farm run all year in Sattur?
Yes, with the right structure. For Sattur we would plan a tall naturally ventilated polyhouse with wide vents and insect net. Even then, lettuce is hard to grow in February to September, so plan another crop for those months.
Which polyhouse is best for Sattur?
With March highs of about 37°C and 59% 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 Sattur?
Going by the monthly climate, capsicum, tomato and cucumber have the longest growing windows. Confirm prices and volumes with buyers before you plant.
Is polyhouse farming profitable in Sattur?
It can be, if the crop, the structure and the buyers match. In Sattur, cucumber and chilli pepper 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 Sattur?
Yes. Our nearest site is our factory and master warehouse at Degaon, Wai (Satara), about 1,050 km away, and we have built 9 projects in Tamil Nadu.
Is there a subsidy for polyhouse or hydroponic farms in Tamil Nadu?
Yes. Protected cultivation projects in Tamil Nadu 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 Sattur 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.
