Tokyo in August: what to plant
Averaged over the last 5 years of daily records, August in Tokyo runs 25.0–32.6°C with about 144 mm of rain across the month. Here is what that climate actually supports.
❄️ No sub-zero nights in August in the last 5 years — frost is not the limiting factor here.
Best crops to sow now
- 🌱 Microgreens Fastest about 5 days to harvest 🪴 Windowsill pot — sheltered from outdoor weather
- 🌿 Basil about 20 days to harvest 🪴 Windowsill pot — sheltered from outdoor weather
- 🍃 Mint about 20 days to harvest 🪴 Windowsill pot — sheltered from outdoor weather
- 🧅 Chives about 22 days to harvest 🪴 Windowsill pot — sheltered from outdoor weather
- 🥒 Zucchini about 35 days to harvest Recent mean 28.8°C — right in the sweet spot
- 🌽 Sweet Corn about 48 days to harvest Recent mean 28.8°C — right in the sweet spot
- 🌻 Sunflower about 49 days to harvest Recent mean 28.8°C — right in the sweet spot
- 🥒 Cucumber about 51 days to harvest Recent mean 28.8°C — right in the sweet spot
Leave these for another month
- 🧅 Onion — Recent mean 28.8°C is too hot (ideal 8–28°C)
- 🧄 Garlic — Recent mean 28.8°C is too hot (ideal 4–24°C)
- ⚪ Turnip — Recent mean 28.8°C is too hot (ideal 8–24°C)
Other months in Tokyo
Temperature and rainfall are 5-year daily normals from the ERA5 reanalysis via Open-Meteo. Suitability is scored with the same degree-day model the game runs on — it is not a generic planting calendar.