Tokyo in October: what to plant
Over the last 5 years, October in Tokyo has run 14.4–22.1°C with about 143 mm of rain across the month. Here is what weather like that will carry to harvest.
Everything above is a five-year average. In the game it is this — the weather Tokyo is actually having, today.
Grow one in Tokyo's weather right now →❄️ No sub-zero nights in October in the last 5 years — frost is not the limiting factor here.
🗓️ This month sits inside the frost-free window. Average last spring frost around Feb 29, first autumn frost around Dec 14 — roughly 289 frost-free days. Sow tender crops after the last frost date and make sure they finish before the first.
☀️ About 6.9 h of sunshine a day this month. Within the month it cools by about 5.7°C from the first ten days to the last — the window for autumn sowings is opening.
Sow this month — when would you harvest?
Assuming you sow in mid-October, then adding up the warmth Tokyo usually gets, one day at a time — which is why some of these run past the end of the month.
| Crop | Days | Harvest around |
|---|---|---|
| 🥬 Napa cabbage | 178 | Apr 10 |
| 🥕 Parsnip | 197 | Apr 29 |
| 🧅 Leek | 194 | Apr 26 |
| ⚪ Turnip | 60 | Dec 13 |
| 🫘 Broad bean | 161 | Mar 24 |
⏳ Too late this month: Potato, Celery, Cauliflower, Green Beans, Dill, Peas, Sweet Corn would still be in the ground when the first frost arrives (around Dec 14). Sow them earlier in the year, or grow them under cover.
Best crops to sow now
They are all ideal for this month — the only real difference is how long each one takes, so pick whatever you want to eat.
- 🥔 Potato about 81 days to harvest Recent mean 18.2°C — right in the sweet spot
- 🥬 Napa cabbage about 59 days to harvest Recent mean 18.2°C — right in the sweet spot
- 🥬 Celery about 97 days to harvest Recent mean 18.2°C — right in the sweet spot
- 🥬 Cauliflower about 67 days to harvest Recent mean 18.2°C — right in the sweet spot
- 🥕 Parsnip about 91 days to harvest Recent mean 18.2°C — right in the sweet spot
- 🥢 Green Beans about 73 days to harvest Recent mean 18.2°C — right in the sweet spot
- 🌿 Dill about 42 days to harvest Recent mean 18.2°C — right in the sweet spot
- 🧅 Leek about 81 days to harvest Recent mean 18.2°C — right in the sweet spot
- 🫛 Peas about 50 days to harvest Recent mean 18.2°C — right in the sweet spot
- ⚪ Turnip about 37 days to harvest Recent mean 18.2°C — right in the sweet spot
- 🫘 Broad bean about 63 days to harvest Recent mean 18.2°C — right in the sweet spot
- 🌽 Sweet Corn about 110 days to harvest Recent mean 18.2°C — right in the sweet spot
Leave these for another month
- 🌶️ Okra — Recent mean 18.2°C is too cold (ideal 20–33°C)
- 🍈 Winter melon — Too little heat to ever mature at current temperatures
- 🍆 Aubergine — Slow going at current temperatures (~225 days)
Other months in Tokyo
📍 Somewhere else? Look up your own city →
Temperature and rainfall come from Open-Meteo's historical observations for Tokyo, averaged day by day over the last 5 years. Whether a crop finishes in time is worked out from its own starting temperature and heat requirement — those numbers are listed on each crop page if you want to check them.