27.12
sat
sat
Day
41°F
N 4 mph
Precip.
100%
100%
Night
39°F
S 6 mph
Precip.
0%
0%
28.12
sun
sun
Day
48°F
NW 2 mph
Precip.
0%
0%
Night
41°F
SE 6 mph
Precip.
0%
0%
29.12
mon
mon
Day
52°F
NE 7 mph
Precip.
0%
0%
Night
43°F
E 7 mph
Precip.
0%
0%
30.12
tue
tue
Day
54°F
N 2 mph
Precip.
0%
0%
Night
45°F
E 6 mph
Precip.
0%
0%
31.12
wed
wed
Day
54°F
NW 4 mph
Precip.
0%
0%
Night
45°F
S 6 mph
Precip.
0%
0%
01.01
thu
thu
Day
46°F
NE 4 mph
Precip.
75%
75%
Night
39°F
W 2 mph
Precip.
100%
100%
02.01
fri
fri
Day
43°F
NW 2 mph
Precip.
0%
0%
Night
39°F
SE 4 mph
Precip.
0%
0%
03.01
sat
sat
Day
46°F
N 2 mph
Precip.
0%
0%
Night
39°F
SE 4 mph
Precip.
0%
0%
04.01
sun
sun
Day
50°F
NE 12 mph
Precip.
0%
0%
Night
39°F
E 12 mph
Precip.
0%
0%
05.01
mon
mon
Day
45°F
E 12 mph
Precip.
0%
0%
Night
37°F
SE 6 mph
Precip.
0%
0%
06.01
tue
tue
Day
48°F
W 2 mph
Precip.
0%
0%
Night
41°F
SW 5 mph
Precip.
0%
0%
07.01
wed
wed
Day
45°F
N 4 mph
Precip.
0%
0%
Night
41°F
E 21 mph
Precip.
0%
0%
08.01
thu
thu
Day
50°F
NE 30 mph
Precip.
0%
0%
Night
41°F
E 13 mph
Precip.
0%
0%
09.01
fri
fri
Day
45°F
NE 21 mph
Precip.
0%
0%
Night
37°F
E 5 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 65.7°F. The highest and lowest sea temperatures during the month were 68.9°F and 64.0°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 61.0°F. The highest and lowest sea temperatures during the month were 62.6°F and 59.9°F.
Air temperature in Hakone, °F
Precipitation total in Hakone, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Hakone
Hakone on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Hakone
Local time: 12:35
December 27, saturday
1500
43°F
N
5 mph
5 mph
1800
43°F
NE
4 mph
4 mph
2100
41°F
SE
4 mph
4 mph
December 28, sunday
0000
39°F
S
6 mph
6 mph
0300
39°F
S
5 mph
5 mph
0600
37°F
S
5 mph
5 mph
0900
45°F
SE
1 mph
1 mph
1200
48°F
NW
2 mph
2 mph
