Measurements:
°C
°F
CURRENT WEATHER
00:40
Hiroshima
30°F
E 4 mph
Feels like: 26°F
Precip: 100%
World Resorts Japan Hiroshima Weather

7 Day Weather Forecast

01.31
sat
DAY
44°F
NE 3 mph
precip
0%
NIGHT
34°F
SE 4 mph
precip
0%
02.01
sun
DAY
44°F
SE 13 mph
precip
0%
NIGHT
30°F
E 6 mph
precip
0%
02.02
mon
DAY
44°F
E 13 mph
precip
100%
NIGHT
30°F
SE 3 mph
precip
79%
02.03
tue
DAY
46°F
E 4 mph
precip
0%
NIGHT
30°F
S 5 mph
precip
0%
02.04
wed
DAY
48°F
NE 4 mph
precip
0%
NIGHT
40°F
NE 4 mph
precip
0%
02.05
thu
DAY
54°F
SE 11 mph
precip
0%
NIGHT
34°F
S 6 mph
precip
0%
02.06
fri
DAY
48°F
SW 3 mph
precip
0%
NIGHT
34°F
SW 5 mph
precip
0%

Hiroshima Sea Water Temperature in January, °F

Select Year: 2026 2025 2024

The average sea surface temperature in January 2026 for Hiroshima was 13.6°F. The maximum and minimum values were 12.0°F and 15.3°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 92.6 °F
July 89.7 °F
September 85.7 °F
Warmest sea temperature:
August 84.7 °F
September 81.5 °F
July 80.7 °F
The most cold months:
January 45.8 °F
February 47.4 °F
December 49.7 °F
The most rainy months:
June 10 days
July 9 days
August 8 days
The most windy months:
December 6 mph
January 6 mph
February 6 mph
more details