Verdict: Excellent month
Hiroshima Weather in April
April hits the sweet spot in Hiroshima — highs around 18°C (64°F), ideal for a full day on foot. Expect showers on roughly 9 days of the month — rarely trip-ruining, worth planning around. Overall, April is one of the best months of the year to be in Hiroshima.
Average high
18°C / 64°F
Average low
8°C / 46°F
Rain days
~9
Precipitation
162 mm
What to pack for Hiroshima in April
- Layers — t-shirts under a light jacket or sweater
- Evenings turn genuinely cool — pack a warm layer for after dark
- A packable rain shell or compact umbrella earns its space
- Comfortable walking shoes — every guide on this site assumes you'll use them
April 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)