Divisi
When to plant Watermelon in Eti-Osa
These figures also cover Odogbolu, where the engine returns the same answer.
Lagos, Nigeria
Known here as kankana
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 | 6 Mar 2026 – 18 Sep 2026 closed for this season | same |
| Expected harvest | about 35.0 t/ha | about 50.0 t/ha |
| Harvest | From 25 May 2026 to 6 Jan 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 20 Mar 2026. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Eti-Osa leans dry, so these dates sit later than the long-run average. Planting on the date you are used to risks germinating into a false start and having to replant.
Planting after 18 Sep 2026 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Eti-Osa
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 88% |
For watermelon in Eti-Osa, the lie of the land is the tightest of the three at 88%. 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 season in Eti-Osa
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | March 2026 to December 2026 |
| Rain in a typical year | About 1,472 mm |
| This season's rain | Leaning dry — September and October look short of rain. Plant at the early end of the window, favour quicker and more drought-tolerant crops, and keep moisture in the soil: mulch, and weed early. |
| What that supports | enough rain for a long crop, or two in a year, warm all year, so nothing but rain ends the season |
| Ground this covers | 4 kinds of ground. The season below is the largest that farms — about 47% of this area. |
| 47% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 298 growing days · about 1,460 mm · March to December |
|---|---|
| 42% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 301 growing days · about 1,500 mm · March to December |
| 5% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 301 growing days · about 1,550 mm · March to December |
| 5% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 267 growing days · about 1,420 mm · March to November |
last updated 16 September 2026
Frost and pest pressure hold back about 15% 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 Eti-Osa
| Planting material | About 4,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 77 kg per hectare |
| Phosphate (P₂O₅) | About 21 kg per hectare |
| Potash (K₂O) | About 112 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 Eti-Osa 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 Eti-Osa?
Eti-Osa rates as favourable for watermelon.
When should I plant watermelon in Eti-Osa?
Typically 6 Mar 2026 to 18 Sep 2026, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Eti-Osa, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
