Climate of Hiroshima, Hiroshima Prefecture, Japan
Point-value climate at Hiroshima (Hiroshima Prefecture, Japan). Population approximately 2,045,000.
Located in Hiroshima Prefecture, Japan, Hiroshima has a seasonal climate. Population approximately 2,045,000. Monthly average temperatures range from 5.1°C / 41.2°F in January to 27.6°C / 81.7°F in August, with rainfall varying from 50 mm / 2 in (December) to 305 mm / 12 in (June) — about 1919 mm / 75.6 in across the year. These are point-value climate normals sampled at Hiroshima's coordinates — often quite different from the surrounding region's area-weighted average.
Best time to visit Hiroshima →
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 5.1°C41.2°F | 64 mm2.5″ | — |
| February | 5.5°C41.9°F | 82 mm3.2″ | — |
| March | 8.6°C47.5°F | 130 mm5.1″ | — |
| April | 14°C57.2°F | 173 mm6.8″ | — |
| May | 18.5°C65.3°F | 185 mm7.3″ | — |
| June | 22.3°C72.1°F | 305 mm12″ | — |
| July | 26.5°C79.7°F | 257 mm10.1″ | — |
| August | 27.6°C81.7°F | 199 mm7.8″ | — |
| September | 23.6°C74.5°F | 247 mm9.7″ | — |
| October | 17.9°C64.2°F | 135 mm5.3″ | — |
| November | 12.3°C54.1°F | 92 mm3.6″ | — |
| December | 7.3°C45.1°F | 50 mm2″ | — |
Frequently asked questions
What is the best time to visit Hiroshima?
Hiroshima does not have a clearly "sunny" season by our profile cutoffs — see the "warmest and driest months" fallback for the closest picks. Hiroshima's warmest month is August at an average of 27.6°C / 81.7°F, and its driest month is December with about 50 mm / 2 in of rain.
What is the climate of Hiroshima?
Hiroshima, in Hiroshima Prefecture, Japan, has monthly average temperatures ranging from 5.1°C / 41.2°F in January to 27.6°C / 81.7°F in August. Annual rainfall is approximately 1919 mm / 75.6 in, with the wettest month being June (305 mm / 12 in) and the driest December (50 mm / 2 in).
What is the average temperature in Hiroshima in August?
The average temperature in Hiroshima in August is 27.6°C / 81.7°F, with rainfall of about 199 mm / 7.8 in — the warmest month of the year.
When is the driest month in Hiroshima?
The driest month in Hiroshima is December, with about 50 mm / 2 in of average monthly rainfall. Average temperature that month is 7.3°C / 45.1°F.
When is the wettest month in Hiroshima?
The wettest month in Hiroshima is June, with approximately 305 mm / 12 in of average monthly rainfall.