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:
19°C
66.2°F
°C °F

Condition: Partly Cloudy

Pressure: 1,020 hPa

Feel like: 18 °C

Temperature: 19°C

Cloud: 73%

Humidity: 58%

Wind: NE - 4 km/h

Visibility: 42.54 km

Weather forecast

Sat
24 Oct
20°C / 23°C
Moderate Rain
Sun
25 Oct
20°C / 22°C
Moderate Rain Showers
Mon
26 Oct
13°C / 24°C
Drizzle Dense Intensity
Tue
27 Oct
7°C / 15°C
Overcast
Wed
28 Oct
6°C / 16°C
Drizzle
Hourly forecast today:
06:00 AM
10° / 19°
10° / 19°
Partly Cloudy
58% 11 km/h
07:00 AM
10° / 19°
10° / 19°
Partly Cloudy
58% 11 km/h
08:00 AM
11° / 18°
11° / 18°
Partly Cloudy
62% 14 km/h
09:00 AM
11° / 18°
11° / 18°
Overcast
65% 18 km/h
10:00 AM
14° / 16°
14° / 16°
Slight Rain
85% 19 km/h
11:00 AM
14° / 15°
14° / 15°
Slight Rain
88% 19 km/h
12:00 PM
13° / 15°
13° / 15°
Moderate Drizzle
89% 20 km/h
13:00 PM
14° / 15°
14° / 15°
Drizzle
90% 14 km/h
14:00 PM
14° / 15°
14° / 15°
Drizzle Dense Intensity
92% 20 km/h
15:00 PM
15° / 16°
15° / 16°
Moderate Rain
93% 18 km/h
16:00 PM
15° / 16°
15° / 16°
Moderate Rain
94% 18 km/h

30 Day Averages and Extremes

  • Average high 20.47°C
  • Average low 12.93°C
  • Hottest day 27°C (10 October 2026)
  • Coldest day 0°C (05 November 2026)
  • Average humidity 71.5%
  • Days with precipitation 21 days
  • Highest precipitation 86 mm (23 October 2026)

Yesterday's Data

  • Max: 19°C
  • Min: 13°C
  • Total Precipitation: 8 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 mild weather in Hiroshima, with temperatures between 16ºC to 19ºC (60.8ºF to 66.2ºF), consider wearing:
- Cotton socks
- Scarf (optional)
- Comfortable jeans or slacks
- Long-sleeve shirt or blouse

Temperature

Early
11°C / 18°C
Morning
11°C / 18°C
Afternoon
15°C / 16°C
Evening
17°C / 17°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 449
  • CO 193
  • NH3 0
  • NO2 12
  • O3 73
  • PM10 12
  • PM25 9
  • SO2 5
  • CH4 1,436

Sunrise / Sunset

21:22
08:25