Sea weather in Hakone in Japan All the beach weather in Hakone

All the essential weather information for enjoying the beach in Hakone in Japan, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.

Weather: When should you go to the beach in Hakone over the next 7 days?

Discover the best moment to go to the beach in Hakone in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Hakone. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Sunday 14 December 202545°F to 52°Fdiscouraged
Monday 15 December 202547°F to 52°Fdiscouraged
Tuesday 16 December 202541°F to 49°Frecommended
Wednesday 17 December 202547°F to 50°Frecommended
Thursday 18 December 202547°F to 50°Fdiscouraged
Friday 19 December 202547°F to 54°Frecommended
Saturday 20 December 202554°F to 61°Frecommended

Sea Weather: Your daily and hourly sea weather in Hakone

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:43 and will set at 16:32 on the beach(es) of Hakone. The outside temperature will be a high of 52°F t and a low of 45°F. Precipitation is in the forecast (0.7in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 18.6mph km/h (with gusts up to 29.2mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (45°F)7°C (45°F)7°C (45°F)8°C (47°F)11°C (51°F)10°C (50°F)7°C (45°F)9°C (49°F)
Perceived temperature4°C (39°F)4°C (40°F)5°C (41°F)5°C (40°F)9°C (49°F)7°C (45°F)3°C (38°F)6°C (42°F)
Precipitation0in0in0.1in0.5in0in0in0in0in
Humidity81%84%95%97%88%74%69%67%
Barometric pressure1019 hPa1013 hPa1009 hPa1000 hPa998 hPa997 hPa1000 hPa1002 hPa
Cloud cover100%100%100%100%84%0%0%0%
Heat index7°C (45°F)7°C (45°F)7°C (45°F)8°C (47°F)11°C (51°F)10°C (50°F)7°C (45°F)9°C (49°F)
Dew point4°C (39°F)5°C (41°F)7°C (44°F)8°C (46°F)9°C (48°F)6°C (42°F)2°C (36°F)4°C (39°F)
Wind
Speed15km/h (10mph)17km/h (11mph)12km/h (7mph)26km/h (16mph)9km/h (6mph)19km/h (12mph)25km/h (15mph)30km/h (18mph)
Gusts20km/h (12mph)23km/h (14mph)16km/h (10mph)37km/h (23mph)12km/h (8mph)23km/h (14mph)29km/h (18mph)47km/h (29mph)
Direction 27°
NNE
18°
NNE
31°
NNE
14°
NNE
55°
NE
216°
SW
265°
W
258°
WSW
Wind chill4°C (39°F)4°C (40°F)5°C (41°F)5°C (40°F)9°C (49°F)7°C (45°F)3°C (38°F)6°C (42°F)
Waves
Height0.4m (1.2ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.7m (2.2ft)1.0m (3.1ft)1.4m (4.7ft)1.2m (4.1ft)
Direction 134°
SE
135°
SE
133°
SE
134°
SE
139°
SE
134°
SE
142°
SE
146°
SE
Period4.9 sec.5.1 sec.5.5 sec.6.1 sec.6.8 sec.10.3 sec.10.2 sec.10.3 sec.
Significant height0.5m (1.6ft)0.6m (2ft)0.4m (1.3ft)0.6m (2ft)0.6m (2ft)1.4m (4.6ft)0.7m (2.3ft)0.9m (3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:44 and will set at 16:32 on the beach(es) of Hakone. The outside temperature will be a high of 52°F t and a low of 47°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 14.3mph km/h (with gusts up to 23mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (47°F)8°C (46°F)8°C (47°F)10°C (50°F)11°C (51°F)10°C (51°F)10°C (50°F)9°C (48°F)
Perceived temperature5°C (42°F)5°C (41°F)6°C (42°F)9°C (47°F)10°C (50°F)9°C (48°F)8°C (46°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity60%57%53%45%37%45%47%45%
Barometric pressure1004 hPa1006 hPa1010 hPa1014 hPa1014 hPa1016 hPa1018 hPa1020 hPa
Cloud cover0%0%0%0%3%5%47%17%
Heat index9°C (47°F)8°C (46°F)8°C (47°F)10°C (50°F)11°C (51°F)10°C (51°F)10°C (50°F)9°C (48°F)
Dew point1°C (34°F)-0°C (32°F)-1°C (31°F)-1°C (30°F)-4°C (26°F)-1°C (30°F)-1°C (31°F)-2°C (28°F)
Wind
Speed23km/h (14mph)18km/h (11mph)15km/h (9mph)12km/h (7mph)6km/h (4mph)10km/h (6mph)16km/h (10mph)13km/h (8mph)
Gusts37km/h (23mph)30km/h (19mph)26km/h (16mph)16km/h (10mph)10km/h (6mph)16km/h (10mph)26km/h (16mph)19km/h (12mph)
Direction 270°
W
269°
W
302°
WNW
290°
WNW
191°
SSW
144°
SE
59°
ENE
42°
NE
Wind chill5°C (42°F)5°C (41°F)6°C (42°F)9°C (47°F)10°C (50°F)9°C (48°F)8°C (46°F)7°C (45°F)
Waves
Height0.9m (3.1ft)0.7m (2.3ft)0.6m (1.9ft)0.5m (1.5ft)0.4m (1.3ft)0.4m (1.2ft)0.3m (1.0ft)0.4m (1.4ft)
Direction 148°
SSE
147°
SSE
145°
SE
144°
SE
143°
SE
143°
SE
141°
SE
139°
SE
Period9.9 sec.9.7 sec.9.8 sec.9.8 sec.9.7 sec.9.3 sec.9.1 sec.9.0 sec.
Significant height1.3m (4.3ft)1.0m (3.3ft)0.9m (3ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:45 and will set at 16:33 on the beach(es) of Hakone. The outside temperature will be a high of 49°F t and a low of 41°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 6.2mph km/h (with gusts up to 9.3mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)8°C (46°F)7°C (45°F)8°C (46°F)9°C (48°F)8°C (47°F)6°C (42°F)9°C (48°F)
Perceived temperature7°C (45°F)6°C (43°F)5°C (41°F)8°C (46°F)9°C (47°F)7°C (45°F)6°C (42°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity48%55%57%55%54%59%64%65%
Barometric pressure1020 hPa1021 hPa1021 hPa1022 hPa1019 hPa1018 hPa1019 hPa1019 hPa
Cloud cover49%25%31%21%8%3%0%0%
Heat index8°C (47°F)8°C (46°F)7°C (45°F)8°C (46°F)9°C (48°F)8°C (47°F)6°C (42°F)9°C (48°F)
Dew point-2°C (28°F)-1°C (31°F)-1°C (30°F)-0°C (31°F)0°C (32°F)1°C (33°F)-1°C (30°F)2°C (36°F)
Wind
Speed8km/h (5mph)10km/h (6mph)9km/h (6mph)4km/h (3mph)5km/h (3mph)7km/h (4mph)1km/h (0mph)5km/h (3mph)
Gusts12km/h (7mph)15km/h (9mph)14km/h (9mph)6km/h (4mph)7km/h (4mph)13km/h (8mph)2km/h (1mph)9km/h (6mph)
Direction 53°
NE
48°
NE
24°
NNE
39°
NE
130°
SE
153°
SSE
166°
SSE
302°
WNW
Wind chill7°C (45°F)6°C (43°F)5°C (41°F)8°C (46°F)9°C (47°F)7°C (45°F)6°C (42°F)8°C (47°F)
Waves
Height0.4m (1.2ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (0.9ft)0.2m (0.8ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.6ft)
Direction 138°
SE
139°
SE
138°
SE
137°
SE
136°
SE
138°
SE
137°
SE
136°
SE
Period3.0 sec.8.7 sec.8.6 sec.8.5 sec.8.3 sec.8.1 sec.8.0 sec.8.0 sec.
Significant height0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:45 and will set at 16:33 on the beach(es) of Hakone. The outside temperature will be a high of 50°F t and a low of 47°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 6.8mph km/h (with gusts up to 10.6mph). Wave height will be up to 0.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)8°C (46°F)8°C (46°F)9°C (49°F)8°C (47°F)10°C (50°F)10°C (49°F)10°C (50°F)
Perceived temperature7°C (45°F)7°C (44°F)6°C (44°F)10°C (49°F)8°C (46°F)9°C (48°F)9°C (49°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%66%62%54%53%56%57%57%
Barometric pressure1018 hPa1018 hPa1018 hPa1020 hPa1018 hPa1018 hPa1019 hPa1020 hPa
Cloud cover0%1%3%0%0%7%32%13%
Heat index8°C (47°F)8°C (46°F)8°C (46°F)9°C (49°F)8°C (47°F)10°C (50°F)10°C (49°F)10°C (50°F)
Dew point2°C (36°F)2°C (35°F)1°C (33°F)1°C (33°F)-1°C (31°F)2°C (35°F)2°C (35°F)2°C (35°F)
Wind
Speed8km/h (5mph)8km/h (5mph)7km/h (4mph)3km/h (2mph)6km/h (4mph)7km/h (4mph)5km/h (3mph)11km/h (7mph)
Gusts13km/h (8mph)12km/h (8mph)11km/h (7mph)4km/h (3mph)11km/h (7mph)11km/h (7mph)8km/h (5mph)17km/h (10mph)
Direction 287°
WNW
303°
WNW
324°
NW
359°
N
99°
E
94°
E
45°
NE
10°
N
Wind chill7°C (45°F)7°C (44°F)6°C (44°F)10°C (49°F)8°C (46°F)9°C (48°F)9°C (49°F)8°C (47°F)
Waves
Height0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)0.1m (0.5ft)0.2m (0.6ft)
Direction 135°
SE
134°
SE
133°
SE
132°
SE
132°
SE
131°
SE
130°
SE
127°
SE
Period7.9 sec.8.0 sec.8.0 sec.7.9 sec.7.9 sec.7.8 sec.8.7 sec.8.8 sec.
Significant height0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.4m (1.3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:46 and will set at 16:33 on the beach(es) of Hakone. The outside temperature will be a high of 50°F t and a low of 47°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 13.1mph km/h (with gusts up to 16.8mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (49°F)9°C (48°F)8°C (47°F)9°C (48°F)10°C (50°F)10°C (51°F)10°C (49°F)9°C (48°F)
Perceived temperature8°C (46°F)6°C (43°F)5°C (42°F)6°C (43°F)8°C (46°F)8°C (47°F)8°C (46°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity56%66%66%62%53%52%59%63%
Barometric pressure1020 hPa1021 hPa1022 hPa1025 hPa1024 hPa1024 hPa1027 hPa1027 hPa
Cloud cover60%100%29%72%54%62%77%54%
Heat index10°C (49°F)9°C (48°F)8°C (47°F)9°C (48°F)10°C (50°F)10°C (51°F)10°C (49°F)9°C (48°F)
Dew point1°C (35°F)3°C (37°F)2°C (36°F)2°C (36°F)1°C (34°F)1°C (34°F)2°C (35°F)2°C (36°F)
Wind
Speed14km/h (9mph)19km/h (12mph)19km/h (12mph)19km/h (12mph)21km/h (13mph)16km/h (10mph)13km/h (8mph)10km/h (6mph)
Gusts20km/h (12mph)26km/h (16mph)27km/h (17mph)24km/h (15mph)26km/h (16mph)22km/h (13mph)20km/h (13mph)16km/h (10mph)
Direction 13°
NNE
19°
NNE
19°
NNE
31°
NNE
41°
NE
54°
NE
40°
NE
27°
NNE
Wind chill8°C (46°F)6°C (43°F)5°C (42°F)6°C (43°F)8°C (46°F)8°C (47°F)8°C (46°F)7°C (45°F)
Waves
Height0.2m (0.7ft)0.2m (0.8ft)0.4m (1.3ft)0.4m (1.5ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.4ft)0.4m (1.4ft)
Direction 127°
SE
128°
SE
51°
NE
56°
ENE
51°
NE
52°
NE
59°
ENE
68°
ENE
Period8.8 sec.8.6 sec.8.5 sec.8.4 sec.8.4 sec.8.3 sec.8.3 sec.9.5 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.6m (2ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 06:47 and will set at 16:34 on the beach(es) of Hakone. The outside temperature will be a high of 54°F t and a low of 47°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 6.2mph km/h (with gusts up to 9.9mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)8°C (47°F)8°C (47°F)9°C (49°F)11°C (51°F)11°C (52°F)11°C (52°F)12°C (54°F)
Perceived temperature7°C (44°F)7°C (44°F)7°C (45°F)8°C (47°F)11°C (51°F)11°C (52°F)11°C (52°F)12°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity68%69%69%67%64%68%75%72%
Barometric pressure1027 hPa1027 hPa1028 hPa1029 hPa1028 hPa1027 hPa1028 hPa1029 hPa
Cloud cover23%74%38%28%22%30%79%70%
Heat index8°C (47°F)8°C (47°F)8°C (47°F)9°C (49°F)11°C (51°F)11°C (52°F)11°C (52°F)12°C (54°F)
Dew point3°C (37°F)3°C (37°F)3°C (37°F)4°C (38°F)4°C (39°F)6°C (42°F)7°C (44°F)7°C (45°F)
Wind
Speed10km/h (6mph)9km/h (5mph)8km/h (5mph)9km/h (5mph)4km/h (3mph)6km/h (4mph)4km/h (2mph)5km/h (3mph)
Gusts16km/h (10mph)14km/h (8mph)12km/h (8mph)11km/h (7mph)6km/h (4mph)8km/h (5mph)7km/h (4mph)9km/h (5mph)
Direction 360°
N

N
26°
NNE
34°
NNE
99°
E
149°
SSE
254°
WSW
261°
W
Wind chill7°C (44°F)7°C (44°F)7°C (45°F)8°C (47°F)11°C (51°F)11°C (52°F)11°C (52°F)12°C (53°F)
Waves
Height0.4m (1.2ft)0.3m (1.1ft)0.3m (1.1ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (0.9ft)
Direction 74°
ENE
119°
ESE
121°
ESE
123°
ESE
124°
SE
130°
SE
130°
SE
130°
SE
Period3.5 sec.8.8 sec.6.0 sec.5.7 sec.5.6 sec.5.7 sec.5.7 sec.5.6 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 06:47 and will set at 16:34 on the beach(es) of Hakone. The outside temperature will be a high of 61°F t and a low of 54°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 8.1mph km/h (with gusts up to 12.4mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)13°C (55°F)12°C (54°F)13°C (56°F)15°C (58°F)16°C (60°F)15°C (59°F)14°C (57°F)
Perceived temperature12°C (54°F)12°C (53°F)12°C (53°F)13°C (56°F)15°C (60°F)16°C (60°F)15°C (59°F)13°C (55°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity70%70%71%64%61%65%65%81%
Barometric pressure1028 hPa1027 hPa1028 hPa1028 hPa1026 hPa1025 hPa1026 hPa1026 hPa
Cloud cover73%46%5%12%44%45%63%100%
Heat index13°C (55°F)13°C (55°F)12°C (54°F)13°C (56°F)15°C (58°F)16°C (60°F)15°C (59°F)14°C (57°F)
Dew point8°C (46°F)7°C (45°F)7°C (45°F)7°C (44°F)7°C (45°F)9°C (48°F)9°C (48°F)11°C (51°F)
Wind
Speed8km/h (5mph)9km/h (6mph)7km/h (4mph)2km/h (1mph)4km/h (2mph)9km/h (5mph)5km/h (3mph)13km/h (8mph)
Gusts14km/h (8mph)17km/h (10mph)13km/h (8mph)3km/h (2mph)5km/h (3mph)13km/h (8mph)9km/h (5mph)20km/h (12mph)
Direction 239°
WSW
266°
W
288°
WNW
334°
NNW
183°
S
193°
SSW
292°
WNW
297°
WNW
Wind chill12°C (54°F)12°C (53°F)12°C (53°F)13°C (56°F)15°C (60°F)16°C (60°F)15°C (59°F)13°C (55°F)
Waves
Height0.3m (0.9ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.1ft)0.4m (1.3ft)0.5m (1.6ft)
Direction 129°
SE
129°
SE
128°
SE
131°
SE
133°
SE
135°
SE
136°
SE
138°
SE
Period5.6 sec.5.7 sec.5.8 sec.5.8 sec.5.7 sec.5.7 sec.5.8 sec.5.6 sec.
Significant height0.3m (1ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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