26.12
fri
fri
Day
50°F
SE 11 mph
Precip.
0%
0%
Night
39°F
W 4 mph
Precip.
77%
77%
27.12
sat
sat
Day
41°F
NW 3 mph
Precip.
69%
69%
Night
39°F
S 5 mph
Precip.
0%
0%
28.12
sun
sun
Day
46°F
N 2 mph
Precip.
0%
0%
Night
39°F
SE 7 mph
Precip.
0%
0%
29.12
mon
mon
Day
52°F
N 2 mph
Precip.
0%
0%
Night
43°F
E 10 mph
Precip.
0%
0%
30.12
tue
tue
Day
54°F
NW 2 mph
Precip.
0%
0%
Night
46°F
SE 3 mph
Precip.
0%
0%
31.12
wed
wed
Day
50°F
NE 7 mph
Precip.
0%
0%
Night
45°F
SW 11 mph
Precip.
0%
0%
01.01
thu
thu
Day
46°F
NW 4 mph
Precip.
0%
0%
Night
43°F
SE 3 mph
Precip.
0%
0%
02.01
fri
fri
Day
50°F
N 2 mph
Precip.
0%
0%
Night
45°F
S 4 mph
Precip.
0%
0%
03.01
sat
sat
Day
48°F
N 5 mph
Precip.
0%
0%
Night
39°F
S 7 mph
Precip.
100%
100%
04.01
sun
sun
Day
43°F
N 2 mph
Precip.
61%
61%
Night
37°F
SE 5 mph
Precip.
0%
0%
05.01
mon
mon
Day
48°F
NE 8 mph
Precip.
0%
0%
Night
37°F
E 16 mph
Precip.
0%
0%
06.01
tue
tue
Day
45°F
NE 29 mph
Precip.
0%
0%
Night
36°F
E 9 mph
Precip.
0%
0%
07.01
wed
wed
Day
43°F
N 6 mph
Precip.
0%
0%
Night
36°F
E 7 mph
Precip.
0%
0%
08.01
thu
thu
Day
45°F
NE 9 mph
Precip.
0%
0%
Night
37°F
S 6 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 65.8°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: 05:45
December 26, friday
0600
46°F
E
12 mph
12 mph
0900
48°F
SE
13 mph
13 mph
1200
50°F
SE
11 mph
11 mph
1500
48°F
SW
8 mph
8 mph
1800
43°F
W
8 mph
8 mph
2100
41°F
W
7 mph
7 mph
December 27, saturday
0000
39°F
W
4 mph
4 mph
0300
39°F
SW
4 mph
4 mph
