Tokyo in June: what to plant
Over the last 5 years, June in Tokyo has run 19.2–26.7°C with about 247 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 June 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 8.1 h of sunshine a day this month. Within the month it warms by about 4.4°C from the first ten days to the last.
Sow this month — when would you harvest?
Assuming you sow in mid-June, 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 |
|---|---|---|
| 🌶️ Okra | 60 | Aug 13 |
| 🍅 Tomato | 74 | Aug 27 |
| 🥒 Bitter melon | 72 | Aug 25 |
| 🥢 Yardlong bean | 63 | Aug 16 |
| 🌿 Amaranth greens | 35 | Jul 19 |
| 🌻 Sunflower | 52 | Aug 5 |
| 🧅 Onion | 48 | Aug 1 |
| 🏵️ Marigold | 32 | Jul 16 |
| 🌱 Microgreens | 6 | Jun 20 |
| 🌿 Garlic chives | 40 | Jul 24 |
| 🥬 Bok Choy | 23 | Jul 7 |
| 🥕 Carrot | 42 | Jul 26 |
Best crops to sow now
- 🌶️ Okra Ideal about 95 days to harvest Recent mean 22.9°C — right in the sweet spot
- 🍅 Tomato Ideal about 101 days to harvest Recent mean 22.9°C — right in the sweet spot
- 🥒 Bitter melon Ideal about 103 days to harvest Recent mean 22.9°C — right in the sweet spot
- 🥢 Yardlong bean Ideal about 90 days to harvest Recent mean 22.9°C — right in the sweet spot
- 🌿 Amaranth greens Ideal about 43 days to harvest Recent mean 22.9°C — right in the sweet spot
- 🌻 Sunflower Ideal about 67 days to harvest Recent mean 22.9°C — right in the sweet spot
- 🧅 Onion Ideal about 59 days to harvest Recent mean 22.9°C — right in the sweet spot
- 🏵️ Marigold Ideal about 38 days to harvest Recent mean 22.9°C — right in the sweet spot
- 🌱 Microgreens Ideal about 6 days to harvest 🪴 Windowsill pot — sheltered from outdoor weather
- 🌿 Garlic chives Good about 48 days to harvest Recent mean 22.9°C — right in the sweet spot
- 🥬 Bok Choy Good about 26 days to harvest Recent mean 22.9°C — right in the sweet spot
- 🥕 Carrot Good about 51 days to harvest Recent mean 22.9°C — right in the sweet spot
Leave these for another month
- 🌿 Rocket — Recent mean 22.9°C is too hot (ideal 6–22°C)
- 🌿 Spinach — Recent mean 22.9°C is too hot (ideal 5–22°C)
- 🫛 Peas — Recent mean 22.9°C is too hot (ideal 7–21°C)
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.