When to plant watermelons in Pau: 2 June – 25 August

In Pau, watermelon: sow for seedlings from 14 April to 28 July; plant into a greenhouse from 12 May to 25 August; plant out into open ground from 2 June to 25 August.

Watermelon in Pau: soil, season and weather

In Pau the soil, not frost, sets the date: the last frost is over around 12 March, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 2 June, 82 days later.

Last spring frost	12 March
Top 7 cm of soil at 18 °C	2 June, 82 days after the last frost
Into an unheated greenhouse	12 May – 25 August; May outside: 10.2 °C at night, 20.2 °C by day; card 18–35 °C
First autumn frost	4 December, 185 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	31 July – 23 October
Days left for picking	126
Daylight	14:17 on 5 May, 15:11 on 2 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, July, has 10 rainy days

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

Watermelon in Pau: care after planting

Planted on 2 June: in the first weeks water every 5 days.

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

2 June — 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 Pau during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 26.7 °C. Months that stay below 18 °C even by day on average: November (14.4 °C) and December (12.4 °C). Nights average below 18 °C in every month of the season, from 3.7 °C to 16.2 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	24.3	14.3	105	14	15:23
July	26	16.1	63	10	15:06
August	26.7	16.2	68	10	14:00
September	23.6	13.5	89	11	12:33
October	20.4	10.4	102	12	11:05
November	14.4	5.8	150	15	9:44
December	12.4	3.7	132	13	9:00

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Pau, Huesca is 10 days earlier and Jaca 17 days later.

City	Distance	Date	Difference
Jaca	86 km	19 June – 22 July	17 days later
Bayonne	92 km	28 May – 7 September	5 days earlier
Pamplona	118 km	1 June – 21 August	1 day earlier
Huesca	130 km	23 May – 17 August	10 days earlier
San Sebastián	131 km	8 June – 24 August	6 days later
Toulouse	149 km	29 May – 19 August	4 days earlier

Where to buy watermelon plants and seeds near Pau

Buy plants ready to set out from 2 June to 25 August (from 12 May to 25 August for an unheated greenhouse); seed for raising your own is sown from 14 April to 28 July. Within 15 km of Pau OpenStreetMap lists 12 garden centres, 6 farm-supply shops, 2 plant nurseries, 7 markets and 12 farm shops (collected 27 October 2026).

CULTURE INDOOR Lons - CBD Shop / Graines de Collection / Semences Kokopelli — garden centre
5 km
E.Leclerc Jardi — garden centre
9 km
Jardibéarn — garden centre
15 km
Pépinières Bergerou — plant nursery
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