Climate almanac

Onomichi

Hiroshima, Japan · 34.42°, 133.20°

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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)