When to plant watermelons in Morelia: 18 April – 12 September

In Morelia, watermelon: sow for seedlings from 28 February to 15 August; plant into a greenhouse from 28 March to 12 September; plant out into open ground from 18 April to 12 September.

Watermelon in Morelia: soil, season and weather

In Morelia the soil, not frost, sets the date: the last frost is over around 15 January, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 18 April, 93 days later.

Last spring frost	15 January
Top 7 cm of soil at 18 °C	18 April, 93 days after the last frost
Into an unheated greenhouse	28 March – 12 September; March outside: 6.5 °C at night, 23.7 °C by day; card 18–35 °C
First autumn frost	22 December, 248 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	16 June – 10 November
Days left for picking	189
Daylight	12:07 on 21 March, 12:38 on 18 April
Watering outdoors when fruiting (card)	every 5 days; the driest month, April, has 2 rainy days

The same dates in Morelia hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.

Watermelon in Morelia: care after planting

Planted on 18 April: in the first weeks water every 5 days.

Feeding, by the card’s schedule from that day:

18 April — feed: balanced (NPK)

Pests and diseases of watermelon to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Weather in Morelia during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, April, averages 25.5 °C. Nights average below 18 °C in every month of the season, from 4.5 °C to 10.8 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
April	25.5	8.2	6	2	12:35
May	25.5	10	38	9	13:04
June	22.4	10.8	125	18	13:19
July	19.9	9.9	147	26	13:13
August	19.9	10	164	25	12:49
September	19.8	9.9	142	21	12:16
October	20.1	8.6	54	11	11:43
November	19.9	6.1	21	4	11:13
December	18.6	4.5	14	3	10:57

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

All the nearest cities on our list plant watermelon earlier than Morelia; the closest date is in Toluca, 15 days earlier.

City	Distance	Date	Difference
Toluca	166 km	3 April – 15 September	15 days earlier
Pachuca	260 km	6 February – 1 September	71 days earlier
Aguascalientes	268 km	8 February – 2 September	69 days earlier
San Luis Potosí	273 km	7 March – 5 September	42 days earlier
Zacatecas	371 km	21 February – 17 August	56 days earlier
Durango	600 km	19 February – 29 August	58 days earlier

Where to buy watermelon plants and seeds near Morelia

Buy plants ready to set out from 18 April to 12 September (from 28 March to 12 September for an unheated greenhouse); seed for raising your own is sown from 28 February to 15 August. Within 15 km of Morelia OpenStreetMap lists 1 plant nursery and 9 markets (collected 27 October 2026).

Abarrotes La Luz — market
2 km
Mercado Nicolás Bravo — market
2 km
Mercado de La Colina — market
4 km
Tianguis "La SEP" — market
6 km

Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

Questions