Divisi
When to plant Watermelon in Sao Miguel Arcanjo
Sao Miguel, Cabo Verde
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 | 24 Jul 2027 – 23 Aug 2027 opens in 42 weeks | 21 Jan 2026 – 1 Jan 2027 |
| Expected harvest | 18.1–20.3 t/ha | about 34.2 t/ha |
| Harvest | From 12 Oct 2027 to 11 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-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 Aug 2027. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Sao Miguel Arcanjo is close to normal, so these dates match the pattern the area usually follows.
Planting after 23 Aug 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Sao Miguel Arcanjo
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 45% |
For watermelon in Sao Miguel Arcanjo, the lie of the land is the tightest of the three at 45%. 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 2027 season in Sao Miguel Arcanjo
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | July 2027 to November 2027 |
| Rain in a typical year | About 378 mm |
| This season's rain | Rain close to usual — plan around about 378 mm falling roughly when it always does |
| What that supports | enough rain for one short crop, and only if timed to it, warm all year, so nothing but rain ends the season |
| Ground this covers | 2 kinds of ground. The season below is the largest that farms — about 78% of this area. |
| 78% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 104 growing days · about 370 mm · July to November |
|---|---|
| 22% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 100 growing days · about 360 mm · July to November |
last updated 1 October 2026
Sloping ground holds back about 45% 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 Sao Miguel Arcanjo
| Planting material | About 4,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 45 kg per hectare |
| Phosphate (P₂O₅) | About 12 kg per hectare |
| Potash (K₂O) | About 65 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 Sao Miguel Arcanjo 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.
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 Sao Miguel Arcanjo?
Sao Miguel Arcanjo rates as favourable for watermelon.
When should I plant watermelon in Sao Miguel Arcanjo?
Typically 24 Jul 2027 to 23 Aug 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Sao Miguel Arcanjo, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
