Monthly climate guide
Hiroshima weather in May
With highs near 22°C (72°F) and lows around 11°C (52°F), May feels warm in Hiroshima. Rainfall averages about 120 mm (wet) and the sky is often cloudy. Daytime highs are 5°C warmer than April and 3°C cooler than June.
What stands out in May
- Just 210 km apart, but Hiroshima runs about 2°C cooler than Fukuoka this month.
- Expect a big gap between day and night — about 11°C.
- May brings late spring to Hiroshima.
- Skies are at their clearest this time of year.
Avg high
22°C
72°F
Avg low
11°C
52°F
Rainfall
120 mm
wet
Humidity
77%
relative
Sky
63%
cloud · often cloudy
Hiroshima weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 6°C / 43°F | -1°C / 29°F | 62 mm | 84% | 74% |
| February | 8°C / 46°F | -1°C / 30°F | 70 mm | 83% | 75% |
| March | 12°C / 54°F | 1°C / 34°F | 103 mm | 80% | 65% |
| April | 17°C / 63°F | 6°C / 42°F | 128 mm | 78% | 64% |
| May | 22°C / 72°F | 11°C / 52°F | 120 mm | 77% | 63% |
| June | 25°C / 77°F | 16°C / 61°F | 239 mm | 83% | 80% |
| July | 29°C / 83°F | 21°C / 70°F | 255 mm | 86% | 74% |
| August | 30°C / 86°F | 22°C / 71°F | 135 mm | 83% | 65% |
| September | 26°C / 78°F | 17°C / 63°F | 200 mm | 84% | 72% |
| October | 21°C / 69°F | 11°C / 52°F | 130 mm | 83% | 62% |
| November | 15°C / 59°F | 6°C / 42°F | 71 mm | 84% | 64% |
| December | 9°C / 47°F | 0°C / 33°F | 87 mm | 84% | 74% |
What to pack for May
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- An extra layer — evenings are noticeably cooler than afternoons
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is May a good time to visit Hiroshima?
Compare the months in the chart above to find your ideal window.
Best time to visit Hiroshima →Other Japan cities in May
Cite or embed this data
Writing about this destination? Copy a ready-made citation or embed a live widget — free, just keep the link.
Hiroshima weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/japan/hiroshima/may
<a href="https://weathercompare.eu/weather/japan/hiroshima/may">Hiroshima weather in May</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/japan/hiroshima" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Hiroshima weather in May"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/japan/hiroshima/may">Hiroshima weather in May</a> – WeatherCompare</p>
Hiroshima in May: quick answers
Is May a good time to visit Hiroshima?
Yes. May is one of the best months for Hiroshima, with highs around 22°C and about 120 mm of rain.
How warm is Hiroshima in May?
Average highs are about 22°C (72°F) and average lows about 11°C (52°F), based on 10 years of daily data.
Does it rain a lot in Hiroshima in May?
Hiroshima typically gets around 120 mm of rain in May — wet.
Figures are long-term averages for the area around Hiroshima (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.