Which is the hottest month in Hiroshima?

The hottest time of year in Hiroshima is normally August. Expect maximum daytime temperatures to reach 31°C with very high heat and humidity.

Which month has the most rain in Hiroshima?

In terms of rainfall, June is usually the wettest month in Hiroshima with 267mm on average. There are normally 17 days in June with some rain.

When is it sunniest in Hiroshima?

The sunniest time of year in Hiroshima is normally August with bright sunshine on average for 51% of daylight hours; that's 7 hours of sunshine per day.

When is the sea warmest in Hiroshima?

The sea is usually at its warmest in Hiroshima in August when the water temperature reaches 26°C.

Best time to visit Hiroshima

Q: When is the best time to visit Hiroshima?

The best time to visit Hiroshima is May and October based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Hiroshima by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Hiroshima?

The best time to visit Hiroshima is May and October based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0.5
Jan
0.5
Feb
1
Mar
2
Apr
4
May
3.5
Jun
3.5
Jul
3
Aug
3.5
Sep
4
Oct
1
Nov
0.5
Dec

Change criteria

Max Day Temperature (°F)

46
Jan
48
Feb
54
Mar
64
Apr
72
May
77
Jun
84
Jul
88
Aug
81
Sep
72
Oct
61
Nov
52
Dec

Hours of Sunshine (daily)

4
Jan
4
Feb
5
Mar
6
Apr
7
May
5
Jun
6
Jul
7
Aug
5
Sep
6
Oct
5
Nov
4
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Japan (Hiroshima) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)