Temperature
Hot by day, warm at night.
86°Ftypical Aug high
Okayama is most comfortable in spring and autumn. Summers are warm and winters are cool.

Hot by day, warm at night.
Moderate rain risk across the month.
Some sun, but clouds are common.
Hot afternoons occur, with humid air through much of the month.
In August, afternoons feel about 88° and nights feel near 91°.
Partly cloudy across the month.
August late afternoons are around 81°F, and early evening stays near 80°F.
Calm winds are typical in August.
Want a side-by-side climate view? Compare Okayama with Shanghai.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 27, 2026
Data & methodology