When to plant watermelons in Queenstown: 16 December – 8 February

In Queenstown, watermelon: sow for seedlings from 28 October to 11 January; plant into a greenhouse from 25 November to 8 February; plant out into open ground from 16 December to 8 February.

Watermelon in Queenstown: soil, season and weather

In Queenstown the soil, not frost, sets the date: the last frost is over around 14 October, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 16 December, 63 days later.

Last spring frost	14 October
Top 7 cm of soil at 18 °C	16 December, 63 days after the last frost
Into an unheated greenhouse	25 November – 8 February; November outside: 7.9 °C at night, 17 °C by day; card 18–35 °C
First autumn frost	19 May, 155 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	13 February – 7 April
Days left for picking	96
Daylight	14:54 on 18 November, 15:36 on 16 December
Watering outdoors when fruiting (card)	every 5 days; the driest month, March, has 11 rainy days

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

Watermelon in Queenstown: care after planting

Planted on 16 December: in the first weeks water every 5 days.

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

16 December — 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 Queenstown during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, January, averages 21 °C. Months that stay below 18 °C even by day on average: April (14.6 °C) and May (11.1 °C). Nights average below 18 °C in every month of the season, from 5 °C to 12.1 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
December	19.2	10.4	139	15	15:35
January	21	12.1	115	12	15:14
February	20.3	11.8	108	11	13:55
March	18.3	10.2	100	11	12:27
April	14.6	7.4	106	12	10:51
May	11.1	5	132	14	9:31

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Queenstown, Christchurch is 15 days earlier and Nelson 4 days later.

City	Distance	Date	Difference
Invercargill	154 km	4 December – 27 February	12 days earlier
Dunedin	171 km	3 December – 10 February	13 days earlier
Timaru	217 km	19 December – 23 February	3 days later
Christchurch	358 km	1 December – 24 February	15 days earlier
Nelson	561 km	20 December – 11 March	4 days later
Blenheim	581 km	11 December – 19 February	5 days earlier

Where to buy watermelon plants and seeds near Queenstown

Buy plants ready to set out from 16 December to 8 February (from 25 November to 8 February for an unheated greenhouse); seed for raising your own is sown from 28 October to 11 January. Within 15 km of Queenstown OpenStreetMap lists 2 markets (collected 20 October 2026).

Queenstown Market — market
Sat 09:00–16:00 · 0 km · queenstownmarket.nz
Remarkables Market — market
Sat 10:00–14:00 · 7 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