Measurements:
°C
°F
CURRENT WEATHER
16:26
Hiroshima
74°F
NE 3 mph
Feels like: 80°F
Precip: 34%
World Resorts Japan Hiroshima Weather

7 Day Weather Forecast

10.19
mon
DAY
72°F
N 2 mph
precip
57%
NIGHT
66°F
N 1 mph
precip
43%
10.20
tue
DAY
74°F
NE 3 mph
precip
55%
NIGHT
72°F
N 7 mph
precip
48%
10.21
wed
DAY
72°F
E 3 mph
precip
49%
NIGHT
50°F
S 5 mph
precip
11%
10.22
thu
DAY
66°F
S 10 mph
precip
12%
NIGHT
46°F
S 6 mph
precip
32%
10.23
fri
DAY
68°F
W 4 mph
precip
11%
NIGHT
56°F
SW 4 mph
precip
25%
10.24
sat
DAY
74°F
NW 2 mph
precip
19%
NIGHT
62°F
SW 2 mph
precip
38%
10.25
sun
DAY
82°F
N 4 mph
precip
5%
NIGHT
68°F
NE 3 mph
precip
42%

Hiroshima Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Hiroshima was 24.7°F. The maximum and minimum values were 24.0°F and 25.2°F respectively.

Hiroshima on the Weather Map

Best Time to Visit Hiroshima
The most sunny months:
May 16 days
October 15 days
April 14 days
The most warm months:
August 92.5 °F
July 89.7 °F
September 85.2 °F
Warmest sea temperature:
August 84.8 °F
September 81.5 °F
July 80.8 °F
The most cold months:
January 45.8 °F
February 47.6 °F
December 49.7 °F
The most rainy months:
July 9 days
June 9 days
August 8 days
The most windy months:
December 6 mph
January 6 mph
February 6 mph
more details