When to plant watermelons in Aguascalientes: 8 February – 2 September

In Aguascalientes, watermelon: sow for seedlings from 21 December to 5 August; plant into a greenhouse from 18 January to 2 September; plant out into open ground from 8 February to 2 September.

Watermelon in Aguascalientes: soil, season and weather

In Aguascalientes the soil, not frost, sets the date: the last frost is over around 6 January, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 8 February, 33 days later.

Last spring frost	6 January
Top 7 cm of soil at 18 °C	8 February, 33 days after the last frost
Into an unheated greenhouse	18 January – 2 September; January outside: 6.2 °C at night, 22 °C by day; card 18–35 °C
First autumn frost	12 December, 307 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	8 April – 31 October
Days left for picking	248
Daylight	10:54 on 11 January, 11:18 on 8 February
Watering outdoors when fruiting (card)	every 5 days; the driest month, March, has 1 rainy day

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

Watermelon in Aguascalientes: care after planting

Planted on 8 February: in the first weeks water every 5 days.

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

8 February — 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 Aguascalientes during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, May, averages 30.9 °C. Nights average below 18 °C in every month of the season, from 6.8 °C to 15.5 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
February	24.6	7.8	10	2	11:26
March	27.6	10	3	1	12:00
April	29.5	12.3	4	1	12:39
May	30.9	14.8	14	4	13:11
June	29	15.5	85	11	13:28
July	26.4	14.1	123	17	13:21
August	26.8	14.4	102	14	12:54
September	25.4	13.7	96	13	12:17
October	25.2	11.7	37	6	11:40
November	24.2	9	15	2	11:06
December	22	6.8	10	2	10:48

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

All the nearest cities on our list plant watermelon later than Aguascalientes; the closest date is in Durango, 11 days later.

City	Distance	Date	Difference
Zacatecas	104 km	21 February – 17 August	13 days later
San Luis Potosí	137 km	7 March – 5 September	27 days later
Morelia	268 km	18 April – 12 September	69 days later
Durango	341 km	19 February – 29 August	11 days later
Toluca	397 km	3 April – 15 September	54 days later
Saltillo	416 km	27 February – 17 August	19 days later

Where to buy watermelon plants and seeds near Aguascalientes

Buy plants ready to set out from 8 February to 2 September (from 18 January to 2 September for an unheated greenhouse); seed for raising your own is sown from 21 December to 5 August. Within 15 km of Aguascalientes OpenStreetMap lists 1 garden centre, 4 farm-supply shops, 2 plant nurseries, 9 markets and 2 farm shops (collected 27 October 2026).

Vivero el Mezquite — garden centre
8 km
Jardín Botánico — plant nursery
3 km
Vivero La Barranca — plant nursery
5 km
Comercial Agricola — farm supply
2 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.

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