Niihama

What is the climate like in Niihama?

The best time to visit Niihama is typically October, the year's most comfortable month (6.4/10). Niihama is warmest in August, when daily highs average 86°F (30°C), and coolest in January, when lows fall to about 38°F (3°C). The wettest month is typically July and the driest is December; the year sees roughly 74 in (1870 mm) of precipitation.

• Best time to visitOctober — the year's comfort peak (6.4/10)
• Warmest monthAugust — average high 86°F (30°C)
• Coolest monthJanuary — average low 38°F (3°C)
• Wettest monthJuly (10 in (266 mm))
• Driest monthDecember (2.9 in (73 mm))
• Annual precipitation74 in (1870 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromKochi, 49 km away (1951-2026)