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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Aussie Insightly Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Hiroshima’s weather right now, as shown in the live forecast above, sets the scene for a city that sits on the Seto Inland Sea coast. Expect mild, humid summers and crisp, dry winters, with the bulk of rain falling from June to September.
What is the typical climate in Hiroshima?
Hiroshima has a humid subtropical climate, with four distinct seasons. Summers are hot and sticky, often reaching the low 30s Celsius, while winters stay cool but rarely drop below freezing. The city’s coastal position means sea breezes can moderate extremes, but typhoon season from August to October brings heavy rain and gusty winds.
When is the best time to visit for pleasant weather?
Spring (March to May) and autumn (October to November) offer the most comfortable conditions. Cherry blossom season in late March and early April is popular, with daytime highs around 18–22°C. Autumn brings clear skies and mild temperatures, ideal for exploring the Peace Memorial Park. For those checking a hiroshima weather forecast 14 days or hiroshima weather forecast 30 days, these shoulder seasons consistently deliver the lowest humidity.
Does Hiroshima get snow or typhoons?
Snow is rare in central Hiroshima, though the surrounding mountains may see a dusting once or twice a year. Typhoons are the bigger concern: the season peaks in September, bringing heavy downpours and strong winds. If you’re looking at hiroshima weather november or hiroshima weather december, you’ll find dry, crisp conditions with daytime highs around 12–15°C. For hiroshima weather by month planning, the Japan Meteorological Agency provides reliable averages.
Does Hiroshima use Celsius or Fahrenheit for weather reports?
Japan uses Celsius for all official weather reports. If you see hiroshima weather fahrenheit online, it’s likely a conversion tool. The live forecast above and local forecasts always display temperatures in Celsius.
How accurate are 30-day forecasts for Hiroshima?
Long-range forecasts give a general trend, not precise daily numbers. A hiroshima weather forecast 30 days is useful for spotting wet or dry spells, but check the 7-day outlook closer to your trip for reliable planning.
Is there a weather radar for Hiroshima?
Yes, the Japan Meteorological Agency operates a hiroshima weather radar network. It shows real-time rain and cloud movement across the Seto Inland Sea region, helpful during typhoon season or when planning outdoor activities.
For more Australian-focused weather insights, check our Australia weather hub or see how conditions compare in Sydney Weather and Melbourne Weather.