When to go
The Best Time to Visit Hiroshima
Month-by-month climate data for Hiroshima, Japan — daily highs and lows, rain days, and an honest verdict for every month of the year.
Timing is the first real decision when planning Hiroshima— it drives crowds, prices and what's actually open. Here's how the year breaks down so you can pick dates that fit the trip you're building, not just the weather.
March–May, October–November. Cherry blossoms in spring, maple foliage in autumn; summers are humid, winters mild and dry.
Warmest in Hiroshima: Aug (31°C / 88°F) · Coolest: Jan (9°C / 48°F) · Wettest: Jul (~17 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Hiroshima climate, month by month
January
9° / 1°C
~7 rain days
Fair
February
10° / 1°C
~7 rain days
Good
March
14° / 4°C
~11 rain days
Good
April
18° / 8°C
~9 rain days
Excellent
May
22° / 13°C
~10 rain days
Excellent
June
25° / 18°C
~14 rain days
Good
July
29° / 23°C
~17 rain days
Good
August
31° / 24°C
~13 rain days
Good
September
28° / 21°C
~12 rain days
Excellent
October
22° / 13°C
~7 rain days
Excellent
November
17° / 8°C
~6 rain days
Excellent
December
11° / 2°C
~4 rain days
Good
Plan around it
Dates locked in? Start from the Hiroshima travel guide or jump straight to a 3-day, 5-day or 7-day itinerary.