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Last and first frost dates in Fukuoka

Japan

In Fukuoka the last spring frost usually comes around 25 February and the first autumn frost around 21 December, which leaves about 299 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 7 April to 31 August.

Last spring frostaround 25 February
First autumn frostaround 21 December
Frost-free days299 days

Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.

When is the last frost in Fukuoka?

The last frost in Fukuoka usually comes around 25 February: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 4 February, while corn waits until 27 March. The first autumn frost follows around 21 December, about 299 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha9 January – 12 September18 February – 22 October11 March – 22 October
Ageratumfrom 20 January—from 7 April
Arugula——sow 4 February – 16 November
Basil7 March – 19 October14 April – 26 November5 May – 26 November
Beet——sow 4 February – 22 October
Bell Pepper13 February – 2 July14 April – 31 August5 May – 31 August
Black-eyed Susanfrom 18 December—from 11 March
Bok Choy14 January – 30 October18 February – 4 December11 March – 4 December
Borage——sow 4 March – 27 October
Broad bean——sow 4 February – 12 September
Broccoli——sow 4 February – 5 September
Brussels Sprouts30 November – 3 August14 January – 17 September4 February – 17 September
Busy Lizziefrom 10 December—from 4 March
Cabbage——sow 4 February – 13 August
Calendula——sow from 4 February
Carrot——sow 4 February – 28 September
Cauliflower3 December – 5 September14 January – 17 October4 February – 17 October
Celeriac3 December – 3 July18 February – 18 September11 March – 18 September
Celery3 December – 13 July18 February – 28 September11 March – 28 September
Celosiafrom 14 Februaryfrom 31 Marchfrom 21 April
Chamomile——sow 4 February – 17 October
Chayote8 December – 26 June6 March – 22 September27 March – 22 September
Chickpea——sow 4 February – 2 September
Chicory20 December – 27 September—4 February – 22 October
Chili Pepper13 February – 8 August14 April – 7 October5 May – 7 October
China asterfrom 21 Februaryfrom 14 Aprilfrom 5 May
Chives——sow 4 February – 8 October
Cilantro——sow 4 February – 18 October
Corn——sow 27 March – 2 September
Corn poppy——sow from 4 February
Cosmosfrom 14 Februaryfrom 31 Marchfrom 21 April
Cucumber17 March – 8 September14 April – 6 October5 May – 6 October
Daikon——sow 4 February – 15 October
Delphiniumfrom 16 November—from 4 February
Dill——sow 4 February – 28 October
Edging lobeliafrom 17 December—from 11 March
Eggplant13 February – 2 July14 April – 31 August5 May – 31 August
Florence fennel4 January – 12 September18 February – 27 October11 March – 27 October
Foxglovefrom 29 October—from 4 February
Garden sorrel——sow 4 February – 16 October
Green Beans——sow 21 April – 10 September
Hollyhock——sow from 4 February
Hyssop——sow 4 February – 8 September
Kale——sow 4 February – 10 October
Kiwano13 February – 15 September17 March – 17 October7 April – 17 October
Kohlrabi——sow 4 February – 20 October
Leek5 November – 24 June14 January – 2 September4 February – 2 September
Lemon balm——sow 4 February – 12 October
Lettuce——sow 4 February – 25 October
Lisianthusfrom 19 Octoberfrom 14 Januaryfrom 4 February
Lovage——sow from 4 February
Luffa3 March – 10 July14 April – 21 August5 May – 21 August
Marigoldfrom 7 Januaryfrom 18 Februaryfrom 11 March
Marjoram13 February – 27 September—5 May – 26 November
Melon17 March – 26 August14 April – 23 September5 May – 23 September
Microgreens——sow 21 April – 7 December
Moringa5 March – 2 October29 April – 26 November20 May – 26 November
Moss rosefrom 17 December—from 4 March
Mustard greens——sow 4 February – 6 November
Napa cabbage16 January – 7 October18 February – 9 November11 March – 9 November
Nasturtiumfrom 11 Januaryfrom 18 Februaryfrom 11 March
Okra3 March – 20 September14 April – 1 November5 May – 1 November
Oregano15 November – 17 September14 January – 16 November4 February – 16 November
Pansyfrom 19 Novemberfrom 14 Januaryfrom 4 February
Parsley——sow 4 February – 6 October
Parsnip——sow 4 February – 25 August
Peanut8 March – 16 August14 April – 22 September5 May – 22 September
Peas——sow 4 February – 8 October
Petuniafrom 10 Februaryfrom 14 Aprilfrom 5 May
Physalis31 January – 13 August17 March – 27 September7 April – 27 September
Pumpkin3 March – 15 July14 April – 26 August5 May – 26 August
Purple coneflowerfrom 13 November—from 4 February
Radish——sow 4 February – 21 November
Sage26 November – 13 September14 January – 1 November4 February – 1 November
Scarlet sagefrom 24 January—from 7 April
Snapdragonfrom 10 Novemberfrom 14 Januaryfrom 4 February
Soybean——sow 5 May – 2 October
Spinach——sow 4 February – 27 October
Stevia27 January – 4 August17 March – 22 September7 April – 22 September
Stock——sow from 4 February
Sunflower——sow from 21 April
Sweet alyssum——sow from 4 February
Sweet Corn13 February – 27 September7 March – 19 October28 March – 19 October
Sweet peafrom 3 Decemberfrom 14 Januaryfrom 4 February
Sweet William——sow from 4 February
Swiss Chard——sow 4 February – 22 October
Thyme——sow 4 February – 2 September
Tomato24 January – 10 July17 March – 31 August7 April – 31 August
Turnip——sow 4 February – 24 October
Watercress——sow 4 February – 4 November
Watermelon17 March – 14 August14 April – 11 September5 May – 11 September
Zinniafrom 25 Marchfrom 29 Aprilfrom 20 May
Zucchini24 March – 13 September14 April – 4 October5 May – 4 October

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day. 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.

When the soil warms up in Fukuoka

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 14 days after the last spring frost and 15 °C 41 days after it.

SoilDateAgainst the last spring frost
5 °C8 January48 days earlier
10 °C11 March14 days later
15 °C7 April41 days later
18 °C5 May69 days later

Frost dates near Fukuoka

Of the nearest cities on our list, the last spring frost ends earliest in Kagoshima (24 January) and latest in Hiroshima (9 April).

CityDistanceLast spring frostFirst autumn frost
Kitakyushu55 km17 February—
Kumamoto92 km18 March3 December
Hiroshima209 km9 April25 November
Busan215 km19 March22 November
Kagoshima222 km24 January26 December

Seeds, seedlings and markets in Fukuoka

Within 15 km of Fukuoka OpenStreetMap lists 10 garden centres, 1 plant nursery, 3 markets and 3 farm shops (collected 28 October 2026). The nearest garden centre to the city centre is 盆栽界隈, 1 km away.

  • 盆栽界隈 — garden centre
    今泉 1-18-20 クレスト今泉, 810-0021 · 1 km

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Fukuoka

Frosts in Fukuoka usually come from about 21 December to about 25 February. These plants have indoor care in their Greenly cards and are harvested quickly, so they can be sown on a windowsill in winter.

Weather in Fukuoka by month

Average weather in Fukuoka over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: May–October (23–32.3 °C). Months that average 30 °C or more by day: July (30.7 °C) and August (32.3 °C). No month averages below 0 °C at night; the coldest nights, in January, average 2.6 °C. About 1924 mm of rain falls in a year, on 148 days; July is the wettest month (304 mm) and December the driest (60 mm).

MonthDay, °CNight, °CRain, mmRainy days
January9.32.67110
February10.52.98810
March156.413812
April19.710.715010
May2415.118512
June27.119.626617
July30.723.830419
August32.324.625316
September28.521.422917
October2315.410410
November17.59.3767
December11.24.2608

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).

Planted in autumn

CropWhen to plant
Bearded Irisby 21 November
Crocusby 21 November
Daffodilby 21 November
Garlic21 November – end of December
Grape hyacinthby 21 November
Helleboreby 21 November
Hyacinthby 21 November
Lilyby 21 November
Ornamental onionby 21 November
Peonyby 21 November
Saffronby 21 November
Snowdropby 21 November
Tulipby 21 November
Wild garlicby 21 November

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).