When to plant tomatoes in Kagoshima: 31 March – 5 September

In Kagoshima, tomato: sow for seedlings from 17 January to 15 July; plant into a greenhouse from 10 March to 5 September; plant out into open ground from 31 March to 5 September.

Tomato in Kagoshima: soil, season and weather

In Kagoshima the soil, not frost, sets the date: the last frost is over around 24 January, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 31 March, 66 days later.

Last spring frost	24 January
Top 7 cm of soil at 15 °C	31 March, 66 days after the last frost
Into an unheated greenhouse	10 March – 5 September; March outside: 9 °C at night, 16.3 °C by day; card 16–27 °C
First autumn frost	26 December, 270 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	9 June – 14 November
Days left for picking	200
Daylight	10:50 on 7 February, 12:28 on 31 March
Watering outdoors when fruiting (card)	every 3 days; the driest month, December, has 9 rainy days

Tomato in Kagoshima: care after planting

Planted on 31 March: in the first weeks water every 4 days.

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

31 March — feed: balanced (NPK)
28 April — feed: nitrogen

Pests and diseases of tomato 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 Kagoshima during the tomato season

Days average above the tomato card's 16–27 °C in July (29.7 °C), August (30.8 °C) and September (28.8 °C). Months that stay below 16 °C even by day on average: December (13.1 °C). Nights average below 16 °C in March, April and November, December (6.6–12.7 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
March	16.3	9	198	14	11:57
April	20.1	12.7	224	13	12:56
May	23.4	16.4	285	14	13:45
June	26.2	20.4	502	20	14:12
July	29.7	24.1	374	21	14:01
August	30.8	24.8	228	18	13:20
September	28.8	22.8	236	16	12:23
October	24.3	17.7	146	11	11:26
November	19	12.2	125	9	10:34
December	13.1	6.6	76	9	10:06

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

All the nearest cities on our list plant tomato later than Kagoshima; the closest date is in Kumamoto, 2 days later.

City	Distance	Date	Difference
Kumamoto	134 km	2 April – 13 August	2 days later
Fukuoka	222 km	7 April – 31 August	7 days later
Kitakyushu	255 km	from 14 April	14 days later
Hiroshima	357 km	5 May – 5 August	35 days later
Busan	421 km	21 April – 2 August	21 days later
Jeju City	434 km	11 April – 29 August	11 days later

Where to buy tomato plants and seeds near Kagoshima

Buy plants ready to set out from 31 March to 5 September (from 10 March to 5 September for an unheated greenhouse); seed for raising your own is sown from 17 January to 15 July. Within 15 km of Kagoshima OpenStreetMap lists 4 garden centres, 1 farm-supply shop, 5 markets and 7 farm shops (collected 28 October 2026).

リビングプラザ滝の神 — garden centre
3 km
グリーンプラザ川﨑春山店 — garden centre
10 km
出水田商会 — garden centre
3 km
古川種苗店 — garden centre
10 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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