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
Friday 5 December 202543°F to 52°Fdiscouraged
Saturday 6 December 202543°F to 50°Frecommended
Sunday 7 December 202545°F to 52°Frecommended
Monday 8 December 202549°F to 59°Frecommended
Tuesday 9 December 202549°F to 52°Frecommended
Wednesday 10 December 202545°F to 50°Frecommended
Thursday 11 December 202545°F to 52°Frecommended

Sea Weather: Your daily and hourly sea weather in Hakone

Sea weather on Friday 5 December 2025

On Friday 5 December 2025, the sun will rise at 06:36 and will set at 16:31 on the beach(es) of Hakone. The outside temperature will be a high of 52°F t and a low of 43°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 15.5mph km/h (with gusts up to 21.8mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (44°F)6°C (43°F)6°C (42°F)8°C (46°F)9°C (49°F)11°C (51°F)9°C (48°F)8°C (47°F)
Perceived temperature4°C (40°F)2°C (36°F)2°C (36°F)5°C (41°F)7°C (44°F)8°C (46°F)5°C (42°F)5°C (41°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity56%61%63%53%40%42%44%49%
Barometric pressure1015 hPa1015 hPa1015 hPa1015 hPa1014 hPa1014 hPa1018 hPa1020 hPa
Cloud cover3%0%0%2%5%20%10%2%
Heat index7°C (44°F)6°C (43°F)6°C (42°F)8°C (46°F)9°C (49°F)11°C (51°F)9°C (48°F)8°C (47°F)
Dew point-2°C (29°F)-1°C (30°F)-1°C (31°F)-1°C (29°F)-4°C (26°F)-2°C (29°F)-3°C (27°F)-2°C (28°F)
Wind
Speed12km/h (7mph)18km/h (11mph)19km/h (12mph)16km/h (10mph)17km/h (11mph)25km/h (15mph)24km/h (15mph)19km/h (12mph)
Gusts17km/h (11mph)26km/h (16mph)27km/h (17mph)19km/h (12mph)24km/h (15mph)35km/h (22mph)25km/h (15mph)27km/h (17mph)
Direction 261°
W
266°
W
264°
W
266°
W
250°
WSW
256°
WSW
31°
NNE
23°
NNE
Wind chill4°C (40°F)2°C (36°F)2°C (36°F)5°C (41°F)7°C (44°F)8°C (46°F)5°C (42°F)5°C (41°F)
Waves
Height0.2m (0.7ft)0.4m (1.2ft)0.5m (1.7ft)0.5m (1.7ft)0.6m (2.1ft)0.8m (2.7ft)0.4m (1.3ft)0.3m (1.0ft)
Direction 130°
SE
128°
SE
215°
SW
217°
SW
248°
WSW
238°
WSW
123°
ESE
127°
SE
Period9.2 sec.9.2 sec.9.2 sec.9.7 sec.9.5 sec.10.8 sec.4.4 sec.9.9 sec.
Significant height0.4m (1.3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)1.1m (3.6ft)1.2m (3.9ft)0.6m (2ft)0.3m (1ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Saturday 6 December 2025

On Saturday 6 December 2025, the sun will rise at 06:37 and will set at 16:31 on the beach(es) of Hakone. The outside temperature will be a high of 50°F t and a low of 43°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 7.5mph km/h (with gusts up to 12.4mph). Wave height will be up to 0.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (45°F)7°C (44°F)7°C (44°F)8°C (47°F)10°C (50°F)10°C (50°F)7°C (44°F)10°C (50°F)
Perceived temperature6°C (42°F)5°C (42°F)5°C (41°F)7°C (45°F)10°C (50°F)9°C (48°F)5°C (41°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity50%53%55%52%50%58%65%68%
Barometric pressure1022 hPa1023 hPa1024 hPa1025 hPa1023 hPa1023 hPa1023 hPa1022 hPa
Cloud cover0%0%0%1%27%19%0%0%
Heat index7°C (45°F)7°C (44°F)7°C (44°F)8°C (47°F)10°C (50°F)10°C (50°F)7°C (44°F)10°C (50°F)
Dew point-3°C (27°F)-2°C (28°F)-2°C (29°F)-1°C (30°F)0°C (32°F)2°C (36°F)1°C (33°F)4°C (40°F)
Wind
Speed8km/h (5mph)8km/h (5mph)8km/h (5mph)8km/h (5mph)3km/h (2mph)8km/h (5mph)9km/h (6mph)12km/h (8mph)
Gusts12km/h (8mph)13km/h (8mph)13km/h (8mph)9km/h (6mph)4km/h (2mph)12km/h (7mph)19km/h (12mph)20km/h (13mph)
Direction 13°
NNE
353°
N

N
30°
NNE
107°
ESE
160°
SSE
256°
WSW
279°
W
Wind chill6°C (42°F)5°C (42°F)5°C (41°F)7°C (45°F)10°C (50°F)9°C (48°F)5°C (41°F)8°C (47°F)
Waves
Height0.2m (0.8ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.7ft)
Direction 127°
SE
128°
SE
129°
SE
131°
SE
131°
SE
131°
SE
131°
SE
132°
SE
Period3.1 sec.9.6 sec.9.5 sec.9.3 sec.9.2 sec.9.1 sec.9.0 sec.8.9 sec.
Significant height0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.4m (1.3ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Sunday 7 December 2025

On Sunday 7 December 2025, the sun will rise at 06:38 and will set at 16:31 on the beach(es) of Hakone. The outside temperature will be a high of 52°F t and a low of 45°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 temperature9°C (49°F)9°C (47°F)8°C (46°F)10°C (49°F)10°C (49°F)9°C (49°F)7°C (45°F)11°C (51°F)
Perceived temperature8°C (46°F)7°C (44°F)6°C (43°F)9°C (49°F)10°C (49°F)9°C (49°F)7°C (45°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%67%63%48%39%38%44%45%
Barometric pressure1021 hPa1020 hPa1020 hPa1020 hPa1018 hPa1018 hPa1019 hPa1019 hPa
Cloud cover0%0%0%0%0%0%0%0%
Heat index9°C (49°F)9°C (47°F)8°C (46°F)10°C (49°F)10°C (49°F)9°C (49°F)7°C (45°F)11°C (51°F)
Dew point4°C (40°F)3°C (37°F)1°C (34°F)-1°C (31°F)-4°C (25°F)-4°C (24°F)-4°C (25°F)-1°C (31°F)
Wind
Speed11km/h (7mph)10km/h (6mph)8km/h (5mph)5km/h (3mph)4km/h (2mph)4km/h (3mph)2km/h (1mph)4km/h (2mph)
Gusts17km/h (11mph)17km/h (10mph)14km/h (9mph)7km/h (4mph)7km/h (4mph)9km/h (6mph)4km/h (2mph)7km/h (4mph)
Direction 265°
W
271°
W
307°
NW

N
76°
ENE
109°
ESE
319°
NW
288°
WNW
Wind chill8°C (46°F)7°C (44°F)6°C (43°F)9°C (49°F)10°C (49°F)9°C (49°F)7°C (45°F)11°C (51°F)
Waves
Height0.2m (0.7ft)0.2m (0.8ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)
Direction 132°
SE
133°
SE
133°
SE
133°
SE
131°
SE
130°
SE
129°
SE
128°
SE
Period8.8 sec.8.6 sec.8.5 sec.8.5 sec.9.5 sec.9.3 sec.9.1 sec.9.0 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.2m (0.7ft)0.3m (1ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Monday 8 December 2025

On Monday 8 December 2025, the sun will rise at 06:39 and will set at 16:31 on the beach(es) of Hakone. The outside temperature will be a high of 59°F t and a low of 49°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 5mph km/h (with gusts up to 9.3mph). Wave height will be up to 0.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (51°F)10°C (50°F)9°C (49°F)11°C (52°F)12°C (53°F)15°C (59°F)11°C (52°F)12°C (54°F)
Perceived temperature10°C (49°F)9°C (48°F)8°C (47°F)11°C (51°F)11°C (53°F)15°C (59°F)11°C (51°F)12°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity46%49%51%51%44%43%52%55%
Barometric pressure1018 hPa1018 hPa1018 hPa1018 hPa1015 hPa1014 hPa1015 hPa1016 hPa
Cloud cover2%0%1%0%2%99%4%78%
Heat index10°C (51°F)10°C (50°F)9°C (49°F)11°C (52°F)12°C (53°F)15°C (59°F)11°C (52°F)12°C (54°F)
Dew point-1°C (30°F)-0°C (31°F)-0°C (32°F)1°C (34°F)-0°C (31°F)3°C (37°F)2°C (35°F)3°C (38°F)
Wind
Speed6km/h (4mph)8km/h (5mph)7km/h (4mph)6km/h (4mph)5km/h (3mph)2km/h (1mph)7km/h (4mph)8km/h (5mph)
Gusts11km/h (7mph)14km/h (9mph)12km/h (7mph)8km/h (5mph)9km/h (6mph)3km/h (2mph)15km/h (9mph)14km/h (8mph)
Direction 272°
W
296°
WNW
300°
WNW
268°
W
245°
WSW
228°
SW
298°
WNW
348°
NNW
Wind chill10°C (49°F)9°C (48°F)8°C (47°F)11°C (51°F)11°C (53°F)15°C (59°F)11°C (51°F)12°C (53°F)
Waves
Height0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.8ft)
Direction 128°
SE
127°
SE
127°
SE
127°
SE
131°
SE
133°
SE
136°
SE
137°
SE
Period8.9 sec.8.7 sec.8.6 sec.8.6 sec.9.4 sec.9.6 sec.9.7 sec.9.5 sec.
Significant height0.3m (1ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.2m (0.7ft)0.3m (1ft)0.4m (1.3ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Tuesday 9 December 2025

On Tuesday 9 December 2025, the sun will rise at 06:40 and will set at 16:31 on the beach(es) of Hakone. The outside temperature will be a high of 52°F t and a low of 49°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 10.6mph km/h (with gusts up to 15.5mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (52°F)10°C (50°F)10°C (49°F)10°C (50°F)11°C (51°F)11°C (52°F)11°C (51°F)10°C (50°F)
Perceived temperature9°C (48°F)8°C (46°F)10°C (49°F)8°C (47°F)9°C (48°F)10°C (51°F)11°C (51°F)8°C (46°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity60%63%62%56%48%45%44%48%
Barometric pressure1017 hPa1018 hPa1019 hPa1021 hPa1020 hPa1021 hPa1023 hPa1023 hPa
Cloud cover4%2%6%5%8%40%45%29%
Heat index11°C (52°F)10°C (50°F)10°C (49°F)10°C (50°F)11°C (51°F)11°C (52°F)11°C (51°F)10°C (50°F)
Dew point4°C (39°F)3°C (38°F)3°C (37°F)2°C (36°F)0°C (32°F)-0°C (31°F)-1°C (30°F)-0°C (31°F)
Wind
Speed17km/h (10mph)13km/h (8mph)3km/h (2mph)16km/h (10mph)12km/h (7mph)8km/h (5mph)4km/h (3mph)15km/h (10mph)
Gusts25km/h (16mph)20km/h (12mph)5km/h (3mph)19km/h (12mph)16km/h (10mph)11km/h (7mph)7km/h (4mph)23km/h (14mph)
Direction 25°
NNE

N
344°
NNW
32°
NNE
60°
ENE
79°
ENE
64°
ENE
31°
NNE
Wind chill9°C (48°F)8°C (46°F)10°C (49°F)8°C (47°F)9°C (48°F)10°C (51°F)11°C (51°F)8°C (46°F)
Waves
Height0.4m (1.5ft)0.4m (1.2ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.4ft)0.4m (1.4ft)0.4m (1.4ft)0.5m (1.5ft)
Direction 137°
SE
137°
SE
135°
SE
133°
SE
130°
SE
127°
SE
126°
SE
124°
ESE
Period9.2 sec.9.1 sec.9.0 sec.9.0 sec.8.9 sec.8.8 sec.8.7 sec.8.9 sec.
Significant height0.7m (2.3ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Wednesday 10 December 2025

On Wednesday 10 December 2025, the sun will rise at 06:40 and will set at 16:31 on the beach(es) of Hakone. The outside temperature will be a high of 50°F t and a low of 45°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 12.4mph km/h (with gusts up to 16.8mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)8°C (46°F)7°C (44°F)8°C (46°F)9°C (49°F)10°C (49°F)9°C (48°F)9°C (49°F)
Perceived temperature6°C (43°F)5°C (40°F)4°C (40°F)6°C (42°F)9°C (49°F)9°C (48°F)8°C (47°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity54%55%57%54%47%52%59%65%
Barometric pressure1024 hPa1025 hPa1026 hPa1028 hPa1026 hPa1025 hPa1025 hPa1025 hPa
Cloud cover36%20%5%1%94%32%12%4%
Heat index9°C (48°F)8°C (46°F)7°C (44°F)8°C (46°F)9°C (49°F)10°C (49°F)9°C (48°F)9°C (49°F)
Dew point0°C (32°F)-1°C (31°F)-1°C (30°F)-1°C (30°F)-1°C (30°F)0°C (33°F)1°C (35°F)3°C (38°F)
Wind
Speed20km/h (13mph)18km/h (11mph)13km/h (8mph)12km/h (8mph)4km/h (3mph)6km/h (4mph)5km/h (3mph)8km/h (5mph)
Gusts27km/h (17mph)25km/h (16mph)18km/h (11mph)15km/h (9mph)6km/h (3mph)9km/h (6mph)10km/h (6mph)12km/h (8mph)
Direction 37°
NE
30°
NNE
22°
NNE
31°
NNE
86°
E
155°
SSE
209°
SSW
272°
W
Wind chill6°C (43°F)5°C (40°F)4°C (40°F)6°C (42°F)9°C (49°F)9°C (48°F)8°C (47°F)8°C (47°F)
Waves
Height0.6m (1.9ft)0.5m (1.6ft)0.5m (1.5ft)0.4m (1.5ft)0.4m (1.2ft)0.3m (1.1ft)0.3m (1.0ft)0.3m (1.0ft)
Direction 123°
ESE
121°
ESE
124°
ESE
122°
ESE
122°
ESE
122°
ESE
122°
ESE
123°
ESE
Period8.9 sec.8.7 sec.10.1 sec.9.9 sec.9.7 sec.9.5 sec.9.4 sec.9.7 sec.
Significant height0.7m (2.3ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Thursday 11 December 2025

On Thursday 11 December 2025, the sun will rise at 06:41 and will set at 16:31 on the beach(es) of Hakone. The outside temperature will be a high of 52°F t and a low of 45°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 5mph km/h (with gusts up to 8.7mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)9°C (48°F)8°C (47°F)10°C (49°F)11°C (52°F)11°C (51°F)7°C (45°F)10°C (50°F)
Perceived temperature8°C (46°F)8°C (46°F)7°C (45°F)10°C (49°F)11°C (53°F)11°C (51°F)7°C (44°F)9°C (49°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%72%66%53%44%43%48%48%
Barometric pressure1023 hPa1022 hPa1022 hPa1022 hPa1019 hPa1019 hPa1020 hPa1020 hPa
Cloud cover25%45%100%100%91%5%0%0%
Heat index9°C (48°F)9°C (48°F)8°C (47°F)10°C (49°F)11°C (52°F)11°C (51°F)7°C (45°F)10°C (50°F)
Dew point4°C (39°F)4°C (39°F)2°C (36°F)1°C (33°F)-0°C (31°F)-1°C (29°F)-3°C (26°F)-0°C (32°F)
Wind
Speed8km/h (5mph)6km/h (4mph)8km/h (5mph)4km/h (3mph)4km/h (2mph)4km/h (3mph)4km/h (2mph)8km/h (5mph)
Gusts13km/h (8mph)10km/h (6mph)12km/h (8mph)6km/h (4mph)5km/h (3mph)7km/h (5mph)8km/h (5mph)14km/h (9mph)
Direction 282°
WNW
300°
WNW
345°
NNW
359°
N
72°
ENE
116°
ESE
296°
WNW
348°
NNW
Wind chill8°C (46°F)8°C (46°F)7°C (45°F)10°C (49°F)11°C (53°F)11°C (51°F)7°C (44°F)9°C (49°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)
Direction 123°
ESE
123°
ESE
123°
ESE
123°
ESE
123°
ESE
122°
ESE
122°
ESE
122°
ESE
Period9.7 sec.9.7 sec.9.9 sec.10.1 sec.10.0 sec.9.9 sec.9.8 sec.9.9 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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