Verdict: Good month
Hiroshima Weather in July
July runs warm in Hiroshima, with daily highs around 29°C (84°F) and nights near 23°C (73°F). It's also the wet side of the calendar: rain falls on about 17 days, so build flexibility into plans. Overall, July is a solid month to visit Hiroshima.
Average high
29°C / 84°F
Average low
23°C / 73°F
Rain days
~17
Precipitation
306 mm
What to pack for Hiroshima in July
- Summer clothes, plus one light layer for air-con and evenings
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Rain gear is non-negotiable — expect rain on roughly 17 days
- Quick-dry shoes — downpours are short but heavy
- Comfortable walking shoes — every guide on this site assumes you'll use them
July against the rest of the year
Warmest in Hiroshima: Aug (31°C / 88°F) · Coolest: Jan (9°C / 48°F) · Wettest: Jul (~17 rain days)
9°
1°
Jan
10°
1°
Feb
14°
4°
Mar
18°
8°
Apr
22°
13°
May
25°
18°
Jun
29°
23°
Jul
31°
24°
Aug
28°
21°
Sep
22°
13°
Oct
17°
8°
Nov
11°
2°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)