In March, the Shikoku Henro trail offers a varied climate across its expansive regions. Tokushima experiences a mix of sunny and overcast days with frequent rain showers. As walkers progress to Kōchi, sun-drenched days are often interrupted by moderate to heavy rain. Ehime sees a roughly equal blend of sun and showers. Kagawa typically enjoys fair weather, though occasional heavy rains are possible. Travelers should prepare for unexpected rain while taking advantage of the sunny periods.
Starting in Tokushima, walkers are met with a climate that frequently alternates between cloudy skies and bouts of rain. The temperatures fluctuate between lows of 2°C and highs of 21°C, with sunny spells amidst moderate rain showers. As one moves through Kamiita and Kamojima, the pattern remains similar, with partly cloudy skies interspersed with rain and sunny intervals.
The journey through Kōchi is notable for its contrast between bright, sunny weather and heavy rains. In Muroto, the sun dominates the early forecasts, but periods of rain become increasingly common. Throughout Susaki and Shimanto, sunny days gradually transition into heavy rain showers, with precipitation peaking at times.
Travelers entering Ehime from Ainan to Niihama experience an alternating sequence of sunny and rainy days. While temperatures rise slightly compared to previous regions, the frequent rain showers persist. The forecast indicates regular shifts, with periods of dryness, sunshine, and heavier rain showers occurring sporadically along the route.
In Kagawa, the weather tends to stabilize with generally pleasant conditions across places such as Shikokuchūō and Sanuki. Despite the occasional heavy rain, most days are marked by sunny or partly cloudy skies, offering more consistent weather patterns compared to the preceding regions of the trail.
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