Divisi
When to plant Watermelon in Tunisie
Watermelon is a warm-season trailing vine, grown flat along the ground for its big, sweet, thirst-quenching fruit — a cousin of pumpkin, cucumber and melon.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 3 Sep 2027 – 12 Sep 2027 opens in 48 weeks | 1 May 2027 – 29 Aug 2027 |
| Expected harvest | about 17.8 t/ha | about 42.1 t/ha |
| Harvest | From 22 Nov 2027 to 31 Dec 2027, depending on the planting date | |
| Ready to harvest | 80–110 days after planting | |
| Work it takes | 46–96 days per hectare, by hand | |
| Rain meets its needs | 84% | |
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.
If you only get one chance to plant, aim for around 3 Sep 2027. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Tunisie is close to normal, so these dates match the pattern the area usually follows.
Planting after 12 Sep 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Tunisie
| Rain and temperature | 88% |
|---|---|
| The soil | 96% |
| The lie of the land | 60% |
For watermelon in Tunisie, the lie of the land is the tightest of the three at 60%. You cannot flatten it, but you can farm it: plant along the contour rather than up and down, ridge or tie ridges to hold water on the slope, and expect shallower rooting than the crop would manage on flat ground.
The 2026/27 season in Tunisie
| When the rains are expected | September 2026 to April 2027 |
|---|---|
| Rain in a typical year | About 451 mm in a typical farming district |
| Across its districts | From about 67 mm in the driest of 24 districts to about 1,035 mm in the wettest |
| This season's rain | Rain close to usual — plan around about 451 mm falling roughly when it always does |
| This season's heat | Hotter than usual — about +1.1 °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 supports | enough rain for one full main crop, warm, with a cool spell that slows winter growth |
| Ground this covers | 3 kinds of ground. The season below is one typical farming district's, not a figure for the whole of this area. |
| 77% | too dry for rain-fed cropping without irrigation; warm, with a cool spell that slows winter growth no rain-fed season · about 70 mm |
|---|---|
| 13% | enough rain for one full main crop; warm, with a cool spell that slows winter growth 210 growing days · about 500 mm · September to May |
| 6% | enough rain for one short crop, and only if timed to it; warm, with a cool spell that slows winter growth 166 growing days · about 420 mm · October to April |
last updated 18 September 2026 · from all 24 areas within it
Temperature holds back about 25% of yield here.
What watermelon needs to grow here
| Soil it likes | well-drained sandy loam or loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 6.0 and 7.0 |
| Spacing | 240 cm between rows, 140 cm between plants |
| Feed it most with | potassium, boron and calcium |
What it takes to grow watermelon in Tunisie
| Planting material | About 4,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 39 kg per hectare |
| Phosphate (P₂O₅) | About 11 kg per hectare |
| Potash (K₂O) | About 57 kg per hectare |
| In the shops | A basal compound at planting — Compound D, or an NPK blend — covers the phosphate and potash. A nitrogen top dressing — urea or AN — goes on once the crop is established. |
| Hand work | 46–96 days per hectare, by hand |
These are the nutrients a watermelon crop of that size carries off the field. What you actually apply depends on what your soil already holds — which is what a soil test, or the app's field records, tell you.
What to watch for
Grow Watermelon with a plan, not a guess
Everything above describes Tunisie as a whole — 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.
Watermelon in nearby districts
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
Will watermelon grow well in Tunisie?
Tunisie rates as favourable for watermelon.
When should I plant watermelon in Tunisie?
Typically 3 Sep 2027 to 12 Sep 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Tunisie, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
