City, Japan
Hiroshima weather by month and the best time to visit
When to go to Hiroshima
Late Mar–May and Oct–Nov are mild. Jun is rainy; Jul–Aug is hot and humid; Aug–Oct brings typhoons. Hiroshima's Aug 6 peace ceremony draws crowds.
Hiroshima weather by month
Average daily high, rainfall and conditions.
- Jan8°63 mm
- Feb10°75 mm
- Mar14°109 mm
- Apr19°125 mm
- May24°146 mm
- Jun27°211 mm
- Jul30°260 mm
- Aug32°122 mm
- Sep28°170 mm
- Oct22°113 mm
- Nov16°79 mm
- Dec10°84 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 8°C46°F | 0°C32°F | 63 mm | 84% | Cold |
| February | 10°C49°F | 1°C33°F | 75 mm | 83% | Cold |
| March | 14°C56°F | 3°C37°F | 109 mm | 80% | Cool |
| April | 19°C66°F | 8°C46°F | 125 mm | 78% | Pleasant |
| May | 24°C75°F | 13°C56°F | 146 mm | 79% | Pleasant |
| June | 27°C81°F | 18°C65°F | 211 mm | 82% | Rainy |
| July | 30°C87°F | 23°C73°F | 260 mm | 86% | Rainy |
| August | 32°C89°F | 23°C74°F | 122 mm | 83% | Hot & humid |
| September | 28°C82°F | 19°C67°F | 170 mm | 83% | Rainy |
| October | 22°C72°F | 13°C55°F | 113 mm | 82% | Pleasant |
| November | 16°C62°F | 7°C45°F | 79 mm | 84% | Cool |
| December | 10°C50°F | 2°C35°F | 84 mm | 85% | Cold |
Best months across Japan
| Place | Best months | Warmest month |
|---|---|---|
| Tokyo | Mar–May, Oct–Nov | Aug (30°C) |
| Kyoto | Mar–May, Oct–Nov | Aug (31°C) |
| Osaka | Mar–May, Oct–Nov | Aug (32°C) |
| Hiroshima | Mar–May, Oct–Nov | Aug (32°C) |
| Nara | Mar–May, Oct–Nov | Aug (31°C) |
| Sapporo | Feb, Jun–Sep | Aug (26°C) |
| Okinawa | Apr–Jun, Oct–Nov | Aug (30°C) |
| Hakone | Apr–May, Oct–Dec | Aug (24°C) |
| Fukuoka | Mar–May, Oct–Nov | Aug (32°C) |
| Kawaguchiko | Oct–Feb | Aug (26°C) |
| Niseko | Jul–Aug, Dec–Mar | Aug (24°C) |
| Yokohama | Mar–May, Oct–Nov | Aug (31°C) |
| Kanazawa | Apr–May, Oct–Nov | Aug (31°C) |
| Takayama | Apr–May, Oct–Nov | Aug (29°C) |
| Nagoya | Mar–May, Oct–Nov | Aug (31°C) |
| Nikko | May, Jul–Aug, Oct–Nov | Aug (28°C) |
| Kamakura | Mar–May, Oct–Nov | Aug (31°C) |
| Kobe | Mar–May, Oct–Nov | Aug (30°C) |
| Hakuba | Jan–Feb, Jul–Sep | Aug (28°C) |
| Ishigaki | Apr–May, Jul, Sep–Oct | Jul (29°C) |
| Nagasaki | Mar–May, Oct–Nov | Aug (31°C) |
| Shirakawa-go | Feb, May, Oct–Nov | Aug (28°C) |
| Miyakojima | Apr–Jun, Sep–Oct | Jul (29°C) |
| Hakodate | Jun–Oct | Aug (25°C) |
| Otaru | Feb, Jun–Sep | Aug (26°C) |
| Beppu | Mar–May, Oct–Nov | Aug (31°C) |
| Matsumoto | Apr–May, Sep–Nov | Aug (29°C) |
| Koyasan | Apr–May, Oct–Nov | Aug (27°C) |
| Furano | Jan–Feb, Jul–Aug | Aug (25°C) |
| Sendai | Apr–May, Sep–Nov | Aug (29°C) |
Quick answers
What is the best month to visit Hiroshima?
Mar–May, Oct–Nov. Late Mar–May and Oct–Nov are mild. Jun is rainy; Jul–Aug is hot and humid; Aug–Oct brings typhoons. Hiroshima's Aug 6 peace ceremony draws crowds.
When is the rainy season in Hiroshima?
Rain peaks in July with about 260 mm. Months with 150 mm or more: Jun–Jul, Sep.
What is the hottest month in Hiroshima?
August, with average highs of 32°C (89°F).
How cold does Hiroshima get?
The coolest nights are in January, averaging 0°C (32°F).
More about Hiroshima
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Sources
- NASA POWER climatology (2001–2020)
- Visit Hiroshima
- Hiroshima Peace Memorial Museum
- Hiroshima Electric Railway (Hiroden)
- Hiroshima Airport
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Temperatures are adjusted by 2°C for the city's elevation. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.