Climate almanac
Onomichi
Hiroshima, Japan · 34.42°, 133.20°
What is the climate like in Onomichi?
The best time to visit Onomichi is typically October – November, with trip comfort peaking in November (7.1/10). Onomichi is warmest in August, when daily highs average 91°F (33°C), and coolest in January, when lows fall to about 36°F (2°C). The wettest month is typically July and the driest is December; the year sees roughly 55 in (1394 mm) of precipitation.
- Best time to visitOctober – November — comfort peaks in November (7.1/10)
- Warmest monthAugust — average high 91°F (33°C)
- Coolest monthJanuary — average low 36°F (2°C)
- Wettest monthJuly (9.1 in (231 mm))
- Driest monthDecember (1.7 in (42 mm))
- Annual precipitation55 in (1394 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromFukuyama, 6 km away (1951-2026)