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When to go · Sai

Sai in October

Good month. Outside the best window (Jun–Sep (sea‑urchin roe festival, milder weather)). Across Japan: Clear, mild and dry: the best all-round month.

Key facts

Verdict
Good
Temperature
16°C (61°F) / 8°C (46°F)
average high / low
Rain days
6
Crowds
Medium
Japan overall
Prices
Medium
Japan overall

Verdict

GoodJapan month rating

Outside the best window (Jun–Sep (sea‑urchin roe festival, milder weather)). Across Japan: Clear, mild and dry: the best all-round month.

Is another month better than October?

October is rated good. These months rate higher:

Weather in October

Long-term averages
  • SaiHighs around 16 °C (61 °F), lows around 8 °C (46 °F), rain on about 6 days

Crowds and prices

Crowds · Japan overall
Medium
Prices · Japan overall
Medium

Japan overall: Clear, mild and dry: the best all-round month.

Compare two months

Weather, crowds and prices for any two months in Sai, side by side.

  • Verdict

    Oct: Good

    Jun: Great (better)

  • Daytime high

    Oct: 16 °C (61 °F)

    Jun: 23 °C (73 °F)

  • Night low

    Oct: 8 °C (46 °F)

    Jun: 14 °C (57 °F)

  • Rain days

    Oct: 6

    Jun: 4 (better)

  • Crowds

    Oct: Medium

    Jun: Low

  • Prices

    Oct: Medium

    Jun: Medium

  • Festivals listed

    Oct: 0

    Jun: 0

October: Outside the best window (Jun–Sep (sea‑urchin roe festival, milder weather)). Across Japan: Clear, mild and dry: the best all-round month.

June: Inside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).

Sai: figures are long-term averages from this guide, not a forecast.

What to pack

  • A warm layer for the evenings

Build the full packing list for your trip →

Across Japan in October →