28.12
sun
sun
Day
46°F
NE 4 mph
Precip.
0%
0%
Night
39°F
NE 1 mph
Precip.
0%
0%
29.12
mon
mon
Day
52°F
NE 10 mph
Precip.
0%
0%
Night
46°F
E 6 mph
Precip.
100%
100%
30.12
tue
tue
Day
52°F
SE 6 mph
Precip.
0%
0%
Night
39°F
SE 8 mph
Precip.
0%
0%
31.12
wed
wed
Day
43°F
SE 12 mph
Precip.
0%
0%
Night
34°F
SE 6 mph
Precip.
0%
0%
01.01
thu
thu
Day
43°F
SE 11 mph
Precip.
0%
0%
Night
34°F
SE 4 mph
Precip.
0%
0%
02.01
fri
fri
Day
45°F
NE 4 mph
Precip.
0%
0%
Night
32°F
E 3 mph
Precip.
0%
0%
03.01
sat
sat
Day
50°F
E 7 mph
Precip.
0%
0%
Night
36°F
SE 4 mph
Precip.
0%
0%
04.01
sun
sun
Day
46°F
E 12 mph
Precip.
100%
100%
Night
36°F
E 6 mph
Precip.
100%
100%
05.01
mon
mon
Day
41°F
E 3 mph
Precip.
64%
64%
Night
37°F
SE 11 mph
Precip.
0%
0%
06.01
tue
tue
Day
45°F
E 2 mph
Precip.
89%
89%
Night
34°F
E 4 mph
Precip.
0%
0%
07.01
wed
wed
Day
48°F
NE 8 mph
Precip.
100%
100%
Night
41°F
E 9 mph
Precip.
100%
100%
08.01
thu
thu
Day
36°F
SE 22 mph
Precip.
100%
100%
Night
30°F
SE 17 mph
Precip.
100%
100%
09.01
fri
fri
Day
36°F
SE 17 mph
Precip.
66%
66%
Night
30°F
SE 7 mph
Precip.
0%
0%
10.01
sat
sat
Day
43°F
SE 12 mph
Precip.
79%
79%
Night
30°F
SE 4 mph
Precip.
0%
0%
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 61.7°F. The highest and lowest sea temperatures during the month were 64.8°F and 59.5°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: 05:31
December 28, sunday
0600
32°F
SE
2 mph
2 mph
0900
41°F
E
2 mph
2 mph
1200
46°F
NE
4 mph
4 mph
1500
46°F
N
5 mph
5 mph
1800
39°F
E
3 mph
3 mph
2100
37°F
SE
2 mph
2 mph
December 29, monday
0000
39°F
NE
1 mph
1 mph
0300
39°F
NE
4 mph
4 mph
