Kumano Kodō – Nakahechi crosses shaded cedar slopes and long stone stairways that respond quickly to passing rain, sun, and cloud. April and November frequently bring cool mornings, clearer air, fresh foliage or autumn color, and steadier weather between passing showers. Across the rest of the year, conditions shift: late spring has longer daylight, early summer centers on the rainy season, late summer remains humid, early autumn can turn stormy, and winter stays cooler with mixed sunshine and occasional rain, while snow is uncommon on the main route.