Okayama Weather Forecast

The nickname is earned. Sheltered by mountains on both sides with the Seto Inland Sea in front, Okayama records among the fewest rainy days of any prefecture — it is the safest bet in Japan for booking an outdoor day months in advance.

Mild, dry and bright: highs near 10°C, frost inland, snow rare on the plain. Korakuen in low winter sun with no queue is one of the better-value garden visits in the country.

Yes — the shelter that keeps the rain out also traps heat, so August runs 33-35°C and humid. Water shortages in dry summers are a recurring local issue, which tells you how little rain actually falls here.