Iyo

What is the climate like in Iyo?

The best time to visit Iyo is typically October, the year's most comfortable month (6.4/10). Iyo is warmest in August, when daily highs average 87°F (31°C), and coolest in January, when lows fall to about 37°F (3°C). The wettest month is typically June and the driest is December; the year sees roughly 72 in (1833 mm) of precipitation.

• Best time to visitOctober — the year's comfort peak (6.4/10)
• Warmest monthAugust — average high 87°F (31°C)
• Coolest monthJanuary — average low 37°F (3°C)
• Wettest monthJune (11 in (279 mm))
• Driest monthDecember (2.7 in (68 mm))
• Annual precipitation72 in (1833 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromMatsuyama, 13 km away (1951-2026)