Divisi icon Divisi

What grows in Simiyu

United Republic of Tanzania

Save as PDF

Map showing the boundary of Simiyu

The 2026/27 season in Simiyu

Rainy seasonsOne each year — one chance to plant, so timing carries it
When the rains are expectedOctober 2026 to June 2027
Rain in a typical yearAbout 777 mm in a typical farming district
Across its districtsFrom about 547 mm in the driest of 5 districts to about 777 mm in the wettest
This season's rainLeaning wet — January, February, November and December look heavier than usual. Make sure water can drain off the field; a wet year does more damage through waterlogging and disease than through the rain itself.
This season's heatHotter than usual — about +0.9 °C over the growing months. Heat makes the same rain do less, so a dry spell bites sooner: do not plant late, and shade or mulch what you can.
What that supportsenough rain for one full main crop, warm all year, so nothing but rain ends the season
Ground this covers3 kinds of ground. The season below is one typical farming district's, not a figure for the whole of this area.
57% enough rain for one full main crop; warm all year, so nothing but rain ends the season 199 growing days · about 650 mm · October to May
23% enough rain for one full main crop; warm all year, so nothing but rain ends the season 199 growing days · about 650 mm · October to May
18% enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 170 growing days · about 530 mm · November to April

last updated 17 September 2026 · from all 5 areas within it

Simiyu's districts

What grows here

Rain-fed. These dates are worked out from each place's own rainfall, for a field watered by the season — with irrigation a window can open earlier, close later, or come round more than once a year. Check your own field under What grows, or get the Divisi app for a calendar dated to your farm.

What grows here with irrigation

Plan the season, not just check it

The crops above are gathered from every district in Simiyu, and the ground under them is not all the same. Your own soil, slope and rainfall will shift the dates — the Divisi app works them out for your field, and dates each job that follows.

Or check your field first

Support and extension

This calendar moves

Planting windows shift with the forecast. Leave your email and we'll send what changed, and a note when planting time nears — a couple of emails a month at most.

Frequently asked questions

What crops grow well in Simiyu?

Bambara groundnut, Cashew, Finger millet, Lablab, Mango all rate well in Simiyu — scored against its own rainfall, soil and terrain rather than a national average.

When should I plant Bambara groundnut in Simiyu?

In Simiyu the window for Bambara groundnut runs 8 Oct 2026 to 7 Nov 2026.

Is there a farming app that works in Simiyu?

Divisi does. It reads Simiyu's own rainfall, soil and terrain rather than a national average, so the planting dates and crop shortlist on this page are the same ones the app works out for a field here — then dates each job for that field, and keeps working with no signal.

Is this exact for my own field?

No — these are readings taken across Simiyu, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.

Keep going

A district's answer is one question. What to grow, what attacks it and where to sell it are the others.

Crop guides Pest guides Disease guides Where to sell it Farming glossary Farming insights Read the Hive Feed How the advice is made