GreenlyWhen to plant watermelons in Tauranga: from 4 December
In Tauranga, watermelon: sow for seedlings from 16 October; plant into a greenhouse from 13 November; plant out into open ground from 4 December. There is no autumn frost here, so the frost dates set no end to the window. For plants and seeds, the places nearby include Palmers (garden centre, 5 km) and Pacifica Home & Garden Store (garden centre, 11 km); addresses and opening hours are below.
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Watermelon in Tauranga: soil, season and weather
In Tauranga the soil, not frost, sets the date: the last frost is over around 18 August, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 4 December, 108 days later. Tauranga has no autumn frost in the median year, so frost does not end the season.
| Last spring frost | 18 August |
|---|---|
| Top 7 cm of soil at 18 °C | 4 December, 108 days after the last frost |
| Into an unheated greenhouse | from 13 November; November outside: 12.1 °C at night, 20 °C by day; card 18–35 °C |
| Days in the bed to the first harvest (card) | 59 |
| First harvest, if planted in this window | from 1 February |
| Daylight | 13:51 on 6 November, 14:37 on 4 December |
| Watering outdoors when fruiting (card) | every 5 days; the driest month, May, has 10 rainy days |
The same dates in Tauranga hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.
Watermelon in Tauranga: care after planting
Planted on 4 December: in the first weeks water every 5 days.
Feeding, by the card’s schedule from that day:
- 4 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 Tauranga during the watermelon season
No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, January, averages 23.5 °C. Months that stay below 18 °C even by day on average: May (16.6 °C). Nights average below 18 °C in every month of the season, from 9.6 °C to 15.5 °C.
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| December | 22.1 | 14 | 142 | 16 | 14:45 |
| January | 23.5 | 15.1 | 141 | 13 | 14:29 |
| February | 23.2 | 15.5 | 153 | 14 | 13:30 |
| March | 21.6 | 13.6 | 134 | 11 | 12:22 |
| April | 19.2 | 11.9 | 161 | 12 | 11:08 |
| May | 16.6 | 9.6 | 133 | 10 | 10:07 |
ERA5 2016–2025, Open-Meteo
Watermelon in nearby cities
Around Tauranga, Napier is 31 days earlier and Wellington 13 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| Rotorua | 51 km | 10 December – 14 February | 6 days later |
| Hamilton (New Zealand) | 79 km | 3 December – 5 March | 1 day earlier |
| Gisborne | 194 km | from 7 November | 27 days earlier |
| Napier | 210 km | from 3 November | 31 days earlier |
| Palmerston North | 301 km | 4 December – 11 March | same day |
| Wellington | 418 km | from 17 December | 13 days later |
Where to buy watermelon plants and seeds near Tauranga
Buy plants ready to set out from 4 December (from 13 November for an unheated greenhouse); seed for raising your own is sown from 16 October. Within 15 km of Tauranga OpenStreetMap lists 5 garden centres and 1 farm shop (collected 20 October 2026).
- Gardenscape Landscape Supplies — garden centre
Ashley Place 1, 3118 Tauranga · Mon–Fri 07:30–16:30; Sat 08:00–15:00; Sun 09:00–13:00 · 13 km · gardenscape.co.nz - Pacifica Home & Garden Store — garden centre
Tara Road 112, 3187 Tauranga · 11 km · pacificapapamoa.com - Palmers — garden centre
Mon–Sun 08:30–17:00 · 5 km - Black Stump Berries — farm shop
Te Puke Highway 529B · 14 km
Places: © OpenStreetMap contributors, ODbL.
- How to grow watermelon
- All frost dates and weather of Tauranga
- Shops and markets: Tauranga
- Selling a surplus in New Zealand
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant watermelons in Tauranga?
In Tauranga, watermelon: sow for seedlings from 16 October; plant into a greenhouse from 13 November; plant out into open ground from 4 December. There is no autumn frost here, so the frost dates set no end to the window.
When to sow watermelons for seedlings in Tauranga?
Sow for seedlings from 16 October.
