When to plant watermelons in Pachuca: 6 February – 1 September

In Pachuca, watermelon: sow for seedlings from 19 December to 4 August; plant into a greenhouse from 16 January to 1 September; plant out into open ground from 6 February to 1 September.

Watermelon in Pachuca: soil, season and weather

In Pachuca frost, not soil, sets the date: the top 7 cm of soil warms to 18 °C — the minimum on the watermelon card — around 6 February, 7 days after the last frost on 30 January, so planting waits only for the week after that frost.

Last spring frost	30 January
Top 7 cm of soil at 18 °C	6 February, 7 days after the last frost
Into an unheated greenhouse	16 January – 1 September; January outside: 5.6 °C at night, 20.6 °C by day; card 18–35 °C
First autumn frost	11 December, 308 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	6 April – 30 October
Days left for picking	249
Daylight	10:59 on 9 January, 11:20 on 6 February
Watering outdoors when fruiting (card)	every 5 days; the driest month, February, has 2 rainy days

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

Watermelon in Pachuca: care after planting

Planted on 6 February: in the first weeks water every 5 days.

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

6 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 Pachuca during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, May, averages 26 °C. Nights average below 18 °C in every month of the season, from 6 °C to 11.6 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
February	22.7	6.7	6	2	11:29
March	24.9	8.7	13	3	12:01
April	25.8	10.1	26	7	12:36
May	26	11.6	43	11	13:05
June	23.1	11.5	105	15	13:20
July	22	10.6	83	18	13:14
August	22.3	10.7	93	16	12:50
September	21.5	11	90	15	12:16
October	21.1	9.6	47	8	11:42
November	21.1	7.6	15	3	11:11
December	20.4	6	7	2	10:55

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

All the nearest cities on our list plant watermelon later than Pachuca; the closest date is in Aguascalientes, 2 days later.

City	Distance	Date	Difference
Toluca	135 km	3 April – 15 September	56 days later
Morelia	260 km	18 April – 12 September	71 days later
San Luis Potosí	325 km	7 March – 5 September	29 days later
Aguascalientes	417 km	8 February – 2 September	2 days later
Zacatecas	496 km	21 February – 17 August	15 days later
Saltillo	634 km	27 February – 17 August	21 days later

Where to buy watermelon plants and seeds near Pachuca

Buy plants ready to set out from 6 February to 1 September (from 16 January to 1 September for an unheated greenhouse); seed for raising your own is sown from 19 December to 4 August. Within 15 km of Pachuca OpenStreetMap lists 1 farm-supply shop, 1 plant nursery and 19 markets (collected 27 October 2026).

Mares — farm supply
15 km
Mercado Genaro Guzmán Mayer — market
1 km
Mercado Primero de Mayo — market
1 km
Mercado Miguel Hidalgo — market
1 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