18.05
mon
mon
Day
75°F
N 9 mph
Precip.
0%
0%
Night
61°F
E 6 mph
Precip.
0%
0%
19.05
tue
tue
Day
75°F
N 11 mph
Precip.
0%
0%
Night
66°F
E 7 mph
Precip.
0%
0%
20.05
wed
wed
Day
75°F
N 6 mph
Precip.
0%
0%
Night
68°F
NW 1 mph
Precip.
64%
64%
21.05
thu
thu
Day
63°F
SW 9 mph
Precip.
100%
100%
Night
61°F
SE 2 mph
Precip.
100%
100%
22.05
fri
fri
Day
64°F
S 9 mph
Precip.
100%
100%
Night
61°F
S 12 mph
Precip.
0%
0%
23.05
sat
sat
Day
68°F
SW 11 mph
Precip.
0%
0%
Night
63°F
S 8 mph
Precip.
0%
0%
24.05
sun
sun
Day
70°F
SW 6 mph
Precip.
71%
71%
Night
64°F
S 7 mph
Precip.
63%
63%
25.05
mon
mon
Day
77°F
W 9 mph
Precip.
0%
0%
Night
66°F
SW 5 mph
Precip.
0%
0%
26.05
tue
tue
Day
75°F
NW 6 mph
Precip.
74%
74%
Night
66°F
NE 5 mph
Precip.
0%
0%
27.05
wed
wed
Day
73°F
NE 11 mph
Precip.
71%
71%
Night
66°F
E 6 mph
Precip.
0%
0%
28.05
thu
thu
Day
73°F
N 9 mph
Precip.
100%
100%
Night
68°F
SW 2 mph
Precip.
100%
100%
29.05
fri
fri
Day
66°F
SW 2 mph
Precip.
82%
82%
Night
66°F
NW 1 mph
Precip.
0%
0%
30.05
sat
sat
Day
68°F
NE 6 mph
Precip.
100%
100%
Night
66°F
N 3 mph
Precip.
100%
100%
31.05
sun
sun
Day
73°F
NW 4 mph
Precip.
81%
81%
Night
68°F
W 3 mph
Precip.
67%
67%
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 66.1°F. The highest and lowest sea temperatures during the month were 67.8°F and 65.1°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 72.7°F. The highest and lowest sea temperatures during the month were 78.1°F and 68.2°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: 13:36
May 18, monday
1500
73°F
N
11 mph
11 mph
1800
68°F
N
9 mph
9 mph
2100
63°F
E
7 mph
7 mph
May 19, tuesday
0000
61°F
E
6 mph
6 mph
0300
61°F
E
5 mph
5 mph
0600
64°F
E
5 mph
5 mph
0900
73°F
N
7 mph
7 mph
1200
75°F
N
11 mph
11 mph
