Historical weather in Hiroshima, Japan
Hiroshima weather history for 2023-2025, with daily temperatures, precipitation, monthly summaries, and records from Open-Meteo archive data.
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Weather summary
Across 2023-2025, Hiroshima averaged 20.3 C for daily highs and 11.6 C for daily lows across 1096 daily observations.
The warmest month was August 2024, with an average high of 32.9 C, while February 2025 had the lowest average low at -0.7 C.
The wettest month was June 2024, totaling 286.8 mm of precipitation.
The hottest day reached 38.5 C on August 2, 2025; the coldest night fell to -8.4 C on January 26, 2023.
Monthly summary table
| Year | Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|---|
| 2023 | January | -0.3 | 9.2 | 68.8 | 31 |
| 2023 | February | 0.8 | 9.9 | 72.4 | 28 |
| 2023 | March | 4.7 | 15.3 | 74.8 | 31 |
| 2023 | April | 8.5 | 17.9 | 211.1 | 30 |
| 2023 | May | 13.3 | 21.7 | 234.4 | 31 |
| 2023 | June | 17.5 | 24.7 | 172.7 | 30 |
| 2023 | July | 22.5 | 29.0 | 210.3 | 31 |
| 2023 | August | 24.2 | 31.8 | 158.6 | 31 |
| 2023 | September | 21.7 | 29.5 | 57.5 | 30 |
| 2023 | October | 11.6 | 22.7 | 12.0 | 31 |
| 2023 | November | 6.9 | 17.2 | 37.8 | 30 |
| 2023 | December | 2.3 | 11.5 | 50.1 | 31 |
| 2024 | January | 0.5 | 9.7 | 47.7 | 31 |
| 2024 | February | 2.5 | 11.4 | 143.3 | 29 |
| 2024 | March | 3.4 | 12.6 | 161.7 | 31 |
| 2024 | April | 10.2 | 20.0 | 141.8 | 30 |
| 2024 | May | 11.9 | 21.9 | 187.2 | 31 |
| 2024 | June | 17.3 | 25.2 | 286.8 | 30 |
| 2024 | July | 23.7 | 29.6 | 248.6 | 31 |
| 2024 | August | 24.4 | 32.9 | 182.8 | 31 |
| 2024 | September | 22.3 | 30.9 | 62.6 | 30 |
| 2024 | October | 15.5 | 24.0 | 146.3 | 31 |
| 2024 | November | 8.9 | 17.0 | 235.3 | 30 |
| 2024 | December | 2.9 | 10.4 | 5.5 | 31 |
| 2025 | January | 0.2 | 8.5 | 13.6 | 31 |
| 2025 | February | -0.7 | 7.4 | 45.7 | 28 |
| 2025 | March | 4.4 | 13.7 | 137.9 | 31 |
| 2025 | April | 8.4 | 18.9 | 72.5 | 30 |
| 2025 | May | 13.1 | 22.6 | 177.1 | 31 |
| 2025 | June | 18.9 | 26.3 | 279.1 | 30 |
| 2025 | July | 23.9 | 32.7 | 112.6 | 31 |
| 2025 | August | 24.7 | 31.9 | 217.0 | 31 |
| 2025 | September | 22.3 | 29.2 | 169.5 | 30 |
| 2025 | October | 15.8 | 23.8 | 84.8 | 31 |
| 2025 | November | 6.4 | 16.7 | 28.4 | 30 |
| 2025 | December | 2.6 | 11.5 | 32.8 | 31 |
Daily weather records
| Record | Date | Value |
|---|---|---|
| Hottest day | August 2, 2025 | 38.5 C |
| Coldest night | January 26, 2023 | -8.4 C |
| Wettest day | November 2, 2024 | 122.2 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.