Hiroshima, Japan Weather

  1. Hiroshima, Japan Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Hiroshima over the next 12 hours
  7. Temperature and possibility of rain in Hiroshima in the coming days
  8. Rainfall in Hiroshima in the coming days
  9. Hiroshima Weather Summary
  10. Weather averages by month
  11. Hiroshima's weather
  12. Frequently asked questions
  13. Comments
Hiroshima, Weather
(Photo by Griffin Quinn on Unsplash)

Current conditions

Updated:
15°C
59.0°F
°C °F

Condition: Clear Sky

Pressure: 1,019 hPa

Feel like: 12 °C

Temperature: 15°C

Cloud: 18%

Humidity: 48%

Wind: NW - 8 km/h

Visibility: 43.9 km

Weather forecast

Sat
07 Nov
5°C / 14°C
Fog
Sun
08 Nov
9°C / 16°C
Overcast
Mon
09 Nov
5°C / 14°C
Partly Cloudy
Tue
10 Nov
3°C / 15°C
Partly Cloudy
Wed
11 Nov
4°C / 17°C
Clear Sky
Hourly forecast today:
08:00 AM
4° / 15°
4° / 15°
Clear Sky
48% 28 km/h
09:00 AM
4° / 14°
4° / 14°
Clear Sky
52% 25 km/h
10:00 AM
5° / 14°
5° / 14°
Clear Sky
55% 20 km/h
11:00 AM
5° / 13°
5° / 13°
Clear Sky
59% 18 km/h
12:00 PM
5° / 13°
5° / 13°
Clear Sky
61% 16 km/h
13:00 PM
5° / 12°
5° / 12°
Clear Sky
60% 19 km/h
14:00 PM
5° / 12°
5° / 12°
Clear Sky
61% 20 km/h
15:00 PM
4° / 11°
4° / 11°
Clear Sky
60% 22 km/h
16:00 PM
3° / 11°
3° / 11°
Clear Sky
58% 22 km/h
17:00 PM
3° / 11°
3° / 11°
Clear Sky
60% 23 km/h
18:00 PM
3° / 10°
3° / 10°
Clear Sky
62% 23 km/h

30 Day Averages and Extremes

  • Average high 18.23°C
  • Average low 9.97°C
  • Hottest day 22°C (21 October 2026)
  • Coldest day 3°C (10 November 2026)
  • Average humidity 72.93%
  • Days with precipitation 19 days
  • Highest precipitation 86 mm (24 October 2026)

Yesterday's Data

  • Max: 19°C
  • Min: 11°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

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 cool weather in Hiroshima, with temperatures between 11ºC to 14ºC (51.8ºF to 57.2ºF), you should consider wearing:
- Light scarf or wrap
- Knit hat (optional for cooler mornings)
- Cotton socks
- Casual shoes or sneakers

Temperature

Early
6°C / 19°C
Morning
4°C / 14°C
Afternoon
4°C / 11°C
Evening
4°C / 10°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 450
  • CO 246
  • NH3 0
  • NO2 7
  • O3 84
  • PM10 11
  • PM25 8
  • SO2 3
  • CH4 1,414

Sunrise / Sunset

21:35
08:12