20.12
sat
sat
Day
59°F
N 2 mph
Precip.
0%
0%
Night
52°F
W 0 mph
Precip.
100%
100%
21.12
sun
sun
Day
52°F
S 7 mph
Precip.
72%
72%
Night
41°F
S 8 mph
Precip.
0%
0%
22.12
mon
mon
Day
50°F
SW 8 mph
Precip.
0%
0%
Night
37°F
SW 6 mph
Precip.
0%
0%
23.12
tue
tue
Day
50°F
N 2 mph
Precip.
0%
0%
Night
48°F
W 2 mph
Precip.
0%
0%
24.12
wed
wed
Day
55°F
E 3 mph
Precip.
100%
100%
Night
46°F
S 6 mph
Precip.
0%
0%
25.12
thu
thu
Day
50°F
S 11 mph
Precip.
0%
0%
Night
37°F
S 7 mph
Precip.
0%
0%
26.12
fri
fri
Day
50°F
W 2 mph
Precip.
0%
0%
Night
46°F
SW 4 mph
Precip.
0%
0%
27.12
sat
sat
Day
48°F
S 8 mph
Precip.
100%
100%
Night
46°F
S 9 mph
Precip.
100%
100%
28.12
sun
sun
Day
48°F
S 15 mph
Precip.
0%
0%
Night
36°F
S 4 mph
Precip.
0%
0%
29.12
mon
mon
Day
48°F
W 1 mph
Precip.
0%
0%
Night
37°F
S 2 mph
Precip.
0%
0%
30.12
tue
tue
Day
50°F
N 6 mph
Precip.
0%
0%
Night
45°F
E 13 mph
Precip.
100%
100%
31.12
wed
wed
Day
37°F
E 21 mph
Precip.
100%
100%
Night
32°F
E 21 mph
Precip.
100%
100%
01.01
thu
thu
Day
36°F
SE 22 mph
Precip.
100%
100%
Night
34°F
E 8 mph
Precip.
0%
0%
02.01
fri
fri
Day
45°F
E 16 mph
Precip.
100%
100%
Night
39°F
E 14 mph
Precip.
100%
100%
sea water
temperature
temperature
| Hiroshima |
monthly
weather
weather
| Hiroshima |
current
weather
weather
| Hiroshima |
7 days
forecast
forecast
| Hiroshima |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 62.3°F. The highest and lowest sea temperatures during the month were 64.8°F and 59.9°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 56.1°F. The highest and lowest sea temperatures during the month were 58.6°F and 52.0°F.
Air temperature in Hiroshima, °F
Precipitation total in Hiroshima, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Hiroshima
Hiroshima on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Hiroshima
Local time: 19:45
December 20, saturday
2100
54°F
NW
1 mph
1 mph
December 21, sunday
0000
52°F
W
0 mph
0 mph
0300
54°F
W
2 mph
2 mph
0600
54°F
E
1 mph
1 mph
0900
55°F
E
2 mph
2 mph
1200
52°F
S
7 mph
7 mph
1500
52°F
S
9 mph
9 mph
1800
48°F
S
7 mph
7 mph
