Weather forecast builder for the Shikoku Henro

Plan your walk with weather from 17 years of history—choose towns and dates below.

About weather on the Shikoku Henro

The Shikoku Henro spans contrasting coasts, with the Pacific side generally wetter and the Seto Inland Sea side drier and breezier. March, April, and October tend to bring milder temperatures, lower humidity, and longer days outside the rainy and peak-summer periods. Across the route, weather remains changeable year-round, with conditions ranging from muggy rain in early summer to cool, shorter winter days; expect a mix of sun and passing showers in any month.

• Spring: Alternating sunshine and showers across regions, with mild to warm days, lower humidity, and longer daylight; Pacific-side sections see wetter spells.
• Summer: Marked by the rainy season then peak heat: frequent heavy showers, muggy air, warm to hot conditions, with wetter stretches along the Pacific coast.
• Autumn: Transition from lingering warmth to crisper air; intermittent rain and occasional storms early, then steadier dry spells, with gradually cooler mornings and shortening daylight.
• Winter: Cool to cold with short days; frequent cloud and intermittent rain, occasional frost on higher passes, and clearer breaks toward the Inland Sea side.

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