Hiroshima, Japan Weather
- Hiroshima, Japan Weather
- Current conditions
- Weather forecast
- Averages and extremes
- Yesterday's Data
- Temperature and possibility of rain in Hiroshima over the next 12 hours
- Temperature and possibility of rain in Hiroshima in the coming days
- Rainfall in Hiroshima in the coming days
- Hiroshima Weather Summary
- Weather averages by month
- Hiroshima's weather
- Frequently asked questions
- Comments
Current conditions
Condition: Clear Sky
Pressure: 1,003 hPa
Feel like: 40 °C
Temperature: 34°C
Cloud: 11%
Humidity: 58%
Wind: SSW - 6 km/h
Visibility: 8.42 km
30 Day Averages and Extremes
- Average high 32.93°C
- Average low 24.97°C
- Hottest day 36°C (05 August 2026)
- Coldest day 23°C (30 July 2026)
- Average humidity 73.23%
- Days with precipitation 25 days
- Highest precipitation 51 mm (03 August 2026)
Yesterday's Data
- Max: 34°C
- Min: 26°C
- Total Precipitation: 0 mm
Temperature and possibility of rain in Hiroshima over the next 12 hours
Temperature and possibility of rain in Hiroshima in the coming days
Rainfall in Hiroshima in the coming days
Hiroshima Climate Summary
Hiroshima features a Humid subtropical, no dry season (Köppen classification: Cfa), with an average annual temperature of 15.34ºC (59.61ºF), which is about 0.15% higher than the national average for Japan. Annually, the city experiences approximately 87.04 millimeters (3.43 inches) of rainfall, spread across 107.72 rainy days, accounting for 29.51% of the year.
| Longitude | 34.3852894 |
| Latitude | 132.4553055 |
| Yearly high temperature | 18.13ºC (64.63ºF) |
| Yearly low temperature | 10.49ºC (50.88ºF) |
| Hottest month | August 30.13ºC (86.23ºF) |
| Coldest month | January 0.45ºC (32.81ºF) |
| Yearly precip | 87.04mm (3.43in) |
| Days with rainfall | 107.72 days (29.51%) |
| Driest month | January (78.52%) |
| Wettest month | July (84.79%) |
Weather averages by month
| Month | High / Low (°C) | Rain |
|---|---|---|
| January | 6.65° / 0.45° | 4.91 days |
| February | 7.86° / 0.81° | 6.82 days |
| March | 11.71° / 3.42° | 8.27 days |
| April | 16.5° / 7.53° | 9.0 days |
| May | 21.95° / 12.36° | 9.09 days |
| June | 24.58° / 16.69° | 13.82 days |
| July | 28.21° / 21.06° | 13.73 days |
| August | 30.13° / 22.29° | 11.45 days |
| September | 25.92° / 18.21° | 10.45 days |
| October | 20.56° / 12.81° | 7.09 days |
| November | 14.86° / 7.7° | 6.0 days |
| December | 8.63° / 2.55° | 7.09 days |
Hiroshima's weather
- Tokyo
- Osaka
- Kanagawa
- Hokkaido
- Aichi
- Tottori
- Shiga
- Saga
- Ehime
- Iwate
- Kagawa
- Aomori
- Ibaraki
- Tochigi
- Shimane
- Fukushima
- Ishikawa
- Mie
- Fukuoka
- Yamagata
- Miyazaki
- Shizuoka
- Okayama
- Nara
- Wakayama
- Miyagi
- Chiba
- Toyama
- Okinawa
- Fukui
- Kochi
- Yamanashi
- Saitama
- Kagoshima
- Akita
- Yamaguchi
- Tokushima
- Niigata
- Kumamoto
- Kyoto
- Hyogo
- Nagasaki
- Gumma
- Gifu
- Oita
- Nagano
Frequently asked questions
1. What is the hottest month in Hiroshima?
August has the highest average monthly temperature (daily mean of 30.13ºC) and January are the coolest (daily mean of 0.45ºC).
2. What should I wear in Hiroshima today?
For today's very hot weather in Hiroshima, with the high temperatures above 36ºC (96.8ºF), consider wearing:
- Lightweight, loose-fitting shorts
- Broad-brimmed sun hat
- High SPF sunscreen for outdoor activities
- Ultra-thin, breathable socks
Temperature
Air quality
Unhealthy for Sensitive Groups air quality, health effects possible for sensitive people, general public usually unaffected
- CO2 450
- CO 397
- NH3 0
- NO2 2
- O3 154
- PM10 10
- PM25 9
- SO2 4
- CH4 1,476