Sea weather in Yakushima in Japan All the beach weather in Yakushima

All the essential weather information for enjoying the beach in Yakushima 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 Yakushima over the next 7 days?

Discover the best moment to go to the beach in Yakushima in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Yakushima. 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 202556°F to 67°Fnot recommended
Monday 15 December 202552°F to 56°Fdiscouraged
Tuesday 16 December 202552°F to 59°Frecommended
Wednesday 17 December 202559°F to 65°Fdiscouraged
Thursday 18 December 202556°F to 63°Fdiscouraged
Friday 19 December 202561°F to 65°Fdiscouraged
Saturday 20 December 202565°F to 67°Frecommended

Sea Weather: Your daily and hourly sea weather in Yakushima

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 07:07 and will set at 17:19 on the beach(es) of Yakushima. The outside temperature will be a high of 67°F t and a low of 56°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! Be careful, the sea will be generally rough with a wind speed of up to 29.8mph km/h (with gusts up to 37.3mph). Wave height will be up to 9.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)18°C (64°F)16°C (61°F)15°C (59°F)14°C (57°F)14°C (56°F)13°C (55°F)13°C (56°F)
Perceived temperature19°C (67°F)18°C (64°F)16°C (61°F)12°C (54°F)11°C (52°F)11°C (51°F)10°C (50°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%77%76%73%72%64%65%63%
Barometric pressure1012 hPa1012 hPa1013 hPa1016 hPa1017 hPa1017 hPa1019 hPa1020 hPa
Cloud cover87%73%88%59%89%81%81%81%
Heat index19°C (67°F)18°C (64°F)16°C (61°F)15°C (59°F)14°C (57°F)14°C (56°F)13°C (55°F)13°C (56°F)
Dew point15°C (59°F)14°C (57°F)12°C (53°F)10°C (50°F)9°C (48°F)7°C (44°F)7°C (44°F)6°C (44°F)
Wind
Speed45km/h (28mph)48km/h (30mph)46km/h (28mph)42km/h (26mph)41km/h (26mph)39km/h (24mph)34km/h (21mph)36km/h (23mph)
Gusts50km/h (31mph)60km/h (37mph)58km/h (36mph)49km/h (30mph)53km/h (33mph)48km/h (30mph)44km/h (27mph)45km/h (28mph)
Direction 298°
WNW
298°
WNW
312°
NW
314°
NW
315°
NW
312°
NW
315°
NW
316°
NW
Wind chill19°C (67°F)18°C (64°F)16°C (61°F)12°C (54°F)11°C (52°F)11°C (51°F)10°C (50°F)11°C (51°F)
Waves
Height2.0m (6.7ft)2.4m (8.0ft)2.7m (9.0ft)2.7m (9.0ft)2.7m (9.0ft)2.8m (9.1ft)2.7m (8.7ft)2.6m (8.5ft)
Direction 104°
ESE
284°
WNW
301°
WNW
305°
NW
297°
WNW
305°
NW
307°
NW
307°
NW
Period7.9 sec.8.0 sec.7.9 sec.7.7 sec.7.7 sec.11.0 sec.11.4 sec.11.8 sec.
Significant height1.7m (5.6ft)2.0m (6.6ft)2.2m (7.2ft)1.9m (6.2ft)1.9m (6.2ft)1.7m (5.6ft)1.8m (5.9ft)1.7m (5.6ft)
Sea water temperature
Water temperature24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 07:07 and will set at 17:19 on the beach(es) of Yakushima. The outside temperature will be a high of 56°F t and a low of 52°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 20.5mph km/h (with gusts up to 24.9mph). Wave height will be up to 7.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (55°F)13°C (55°F)12°C (54°F)13°C (56°F)
Perceived temperature10°C (51°F)11°C (51°F)11°C (51°F)11°C (51°F)11°C (52°F)11°C (52°F)10°C (50°F)12°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%63%63%65%62%62%60%61%
Barometric pressure1021 hPa1022 hPa1022 hPa1025 hPa1024 hPa1023 hPa1024 hPa1024 hPa
Cloud cover100%78%92%67%74%15%7%0%
Heat index13°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (55°F)13°C (55°F)12°C (54°F)13°C (56°F)
Dew point7°C (44°F)6°C (43°F)6°C (44°F)7°C (44°F)6°C (42°F)6°C (42°F)5°C (40°F)6°C (42°F)
Wind
Speed33km/h (21mph)33km/h (20mph)31km/h (19mph)26km/h (16mph)16km/h (10mph)17km/h (10mph)18km/h (11mph)15km/h (9mph)
Gusts40km/h (25mph)40km/h (25mph)38km/h (23mph)30km/h (19mph)21km/h (13mph)24km/h (15mph)32km/h (20mph)21km/h (13mph)
Direction 321°
NW
320°
NW
327°
NNW
343°
NNW
359°
N
347°
NNW
336°
NNW
351°
N
Wind chill10°C (51°F)11°C (51°F)11°C (51°F)11°C (51°F)11°C (52°F)11°C (52°F)10°C (50°F)12°C (53°F)
Waves
Height2.4m (8.0ft)2.3m (7.5ft)2.0m (6.7ft)1.9m (6.1ft)1.6m (5.3ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (4.0ft)
Direction 304°
WNW
302°
WNW
301°
WNW
300°
WNW
300°
WNW
303°
WNW
303°
WNW
94°
E
Period11.4 sec.11.1 sec.11.1 sec.11.1 sec.10.8 sec.7.6 sec.10.2 sec.10.1 sec.
Significant height1.7m (5.6ft)1.6m (5.2ft)1.3m (4.3ft)1.3m (4.3ft)1.1m (3.6ft)0.6m (2ft)1.2m (3.9ft)1.1m (3.6ft)
Sea water temperature
Water temperature24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 07:08 and will set at 17:19 on the beach(es) of Yakushima. The outside temperature will be a high of 59°F t and a low of 52°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 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)14°C (57°F)14°C (56°F)14°C (58°F)14°C (58°F)14°C (58°F)11°C (52°F)15°C (59°F)
Perceived temperature13°C (55°F)13°C (56°F)13°C (55°F)13°C (56°F)14°C (56°F)14°C (56°F)10°C (50°F)15°C (59°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity61%61%62%59%58%60%60%60%
Barometric pressure1024 hPa1024 hPa1023 hPa1024 hPa1023 hPa1022 hPa1023 hPa1024 hPa
Cloud cover9%10%2%0%8%10%0%12%
Heat index13°C (56°F)14°C (57°F)14°C (56°F)14°C (58°F)14°C (58°F)14°C (58°F)11°C (52°F)15°C (59°F)
Dew point6°C (43°F)6°C (44°F)6°C (44°F)6°C (44°F)6°C (43°F)7°C (44°F)4°C (39°F)7°C (45°F)
Wind
Speed10km/h (6mph)9km/h (6mph)12km/h (8mph)13km/h (8mph)13km/h (8mph)12km/h (7mph)9km/h (6mph)9km/h (6mph)
Gusts13km/h (8mph)12km/h (8mph)17km/h (11mph)17km/h (11mph)19km/h (12mph)17km/h (11mph)20km/h (12mph)13km/h (8mph)
Direction 328°
NNW
314°
NW
308°
NW
319°
NW
326°
NW
331°
NNW
324°
NW
306°
NW
Wind chill13°C (55°F)13°C (56°F)13°C (55°F)13°C (56°F)14°C (56°F)14°C (56°F)10°C (50°F)15°C (59°F)
Waves
Height1.1m (3.5ft)0.9m (3.1ft)0.9m (2.8ft)0.8m (2.6ft)0.7m (2.4ft)0.7m (2.2ft)0.6m (2.1ft)0.6m (2.0ft)
Direction 96°
E
98°
E
99°
E
101°
E
102°
ESE
102°
ESE
103°
ESE
103°
ESE
Period6.9 sec.6.7 sec.9.7 sec.9.6 sec.9.6 sec.9.6 sec.9.6 sec.9.6 sec.
Significant height1.3m (4.3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)
Sea water temperature
Water temperature24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 07:09 and will set at 17:20 on the beach(es) of Yakushima. The outside temperature will be a high of 65°F t and a low of 59°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 16.2mph km/h (with gusts up to 21.8mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (59°F)15°C (59°F)15°C (60°F)17°C (62°F)17°C (63°F)17°C (62°F)17°C (63°F)17°C (63°F)
Perceived temperature15°C (59°F)15°C (59°F)15°C (60°F)17°C (62°F)17°C (63°F)17°C (62°F)17°C (63°F)17°C (63°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity59%60%62%59%58%73%69%67%
Barometric pressure1023 hPa1022 hPa1022 hPa1022 hPa1021 hPa1019 hPa1020 hPa1021 hPa
Cloud cover82%25%59%30%22%95%79%81%
Heat index15°C (59°F)15°C (59°F)15°C (60°F)17°C (62°F)17°C (63°F)17°C (62°F)17°C (63°F)17°C (63°F)
Dew point7°C (45°F)7°C (45°F)8°C (47°F)8°C (47°F)9°C (48°F)12°C (53°F)12°C (53°F)11°C (52°F)
Wind
Speed8km/h (5mph)9km/h (6mph)10km/h (6mph)12km/h (8mph)18km/h (11mph)26km/h (16mph)23km/h (14mph)24km/h (15mph)
Gusts11km/h (7mph)13km/h (8mph)14km/h (9mph)16km/h (10mph)25km/h (15mph)35km/h (22mph)35km/h (22mph)34km/h (21mph)
Direction 282°
WNW
275°
W
268°
W
184°
S
217°
SW
243°
WSW
297°
WNW
294°
WNW
Wind chill15°C (59°F)15°C (59°F)15°C (60°F)17°C (62°F)17°C (63°F)17°C (62°F)17°C (63°F)17°C (63°F)
Waves
Height0.6m (1.9ft)0.5m (1.8ft)0.5m (1.7ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.7ft)0.8m (2.6ft)1.0m (3.1ft)
Direction 105°
ESE
105°
ESE
105°
ESE
104°
ESE
104°
ESE
103°
ESE
102°
ESE
271°
W
Period9.4 sec.9.2 sec.9.0 sec.8.8 sec.8.8 sec.8.8 sec.8.9 sec.8.9 sec.
Significant height0.5m (1.6ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.7m (2.3ft)1.1m (3.6ft)1.2m (3.9ft)
Sea water temperature
Water temperature24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 07:09 and will set at 17:20 on the beach(es) of Yakushima. The outside temperature will be a high of 63°F t and a low of 56°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 16.8mph km/h (with gusts up to 21.1mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (62°F)16°C (61°F)16°C (60°F)16°C (61°F)15°C (60°F)15°C (58°F)16°C (60°F)16°C (61°F)
Perceived temperature17°C (62°F)16°C (61°F)16°C (60°F)16°C (61°F)15°C (60°F)14°C (57°F)16°C (60°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%69%61%61%59%63%70%65%
Barometric pressure1021 hPa1021 hPa1022 hPa1023 hPa1023 hPa1022 hPa1023 hPa1024 hPa
Cloud cover83%67%14%0%81%82%70%81%
Heat index17°C (62°F)16°C (61°F)16°C (60°F)16°C (61°F)15°C (60°F)15°C (58°F)16°C (60°F)16°C (61°F)
Dew point12°C (53°F)11°C (51°F)8°C (47°F)9°C (47°F)7°C (45°F)8°C (46°F)10°C (50°F)10°C (49°F)
Wind
Speed24km/h (15mph)27km/h (17mph)23km/h (14mph)18km/h (11mph)14km/h (9mph)12km/h (7mph)17km/h (11mph)21km/h (13mph)
Gusts32km/h (20mph)34km/h (21mph)31km/h (19mph)24km/h (15mph)21km/h (13mph)20km/h (12mph)25km/h (15mph)28km/h (17mph)
Direction 311°
NW
313°
NW
325°
NW
343°
NNW

N
19°
NNE
57°
ENE
72°
ENE
Wind chill17°C (62°F)16°C (61°F)16°C (60°F)16°C (61°F)15°C (60°F)14°C (57°F)16°C (60°F)16°C (61°F)
Waves
Height1.5m (5.0ft)1.8m (5.8ft)1.8m (6.1ft)1.7m (5.5ft)1.5m (4.9ft)1.3m (4.3ft)1.1m (3.7ft)1.0m (3.3ft)
Direction 293°
WNW
301°
WNW
309°
NW
307°
NW
299°
WNW
299°
WNW
301°
WNW
307°
NW
Period8.9 sec.8.9 sec.9.0 sec.9.6 sec.9.6 sec.9.6 sec.7.5 sec.7.4 sec.
Significant height1.5m (4.9ft)1.4m (4.6ft)1.4m (4.6ft)1.1m (3.6ft)1.0m (3.3ft)0.8m (2.6ft)0.4m (1.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 07:10 and will set at 17:21 on the beach(es) of Yakushima. The outside temperature will be a high of 65°F t and a low of 61°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 13.7mph km/h (with gusts up to 22.4mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)16°C (61°F)16°C (61°F)18°C (64°F)18°C (64°F)18°C (64°F)17°C (62°F)18°C (64°F)
Perceived temperature16°C (61°F)16°C (61°F)16°C (61°F)18°C (64°F)18°C (64°F)18°C (64°F)17°C (62°F)18°C (64°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity60%63%78%64%59%58%61%62%
Barometric pressure1024 hPa1023 hPa1023 hPa1024 hPa1023 hPa1022 hPa1022 hPa1023 hPa
Cloud cover21%73%88%100%56%74%10%43%
Heat index16°C (61°F)16°C (61°F)16°C (61°F)18°C (64°F)18°C (64°F)18°C (64°F)17°C (62°F)18°C (64°F)
Dew point8°C (47°F)9°C (48°F)12°C (54°F)11°C (51°F)10°C (49°F)10°C (49°F)9°C (49°F)11°C (51°F)
Wind
Speed21km/h (13mph)14km/h (9mph)17km/h (11mph)22km/h (14mph)20km/h (12mph)21km/h (13mph)21km/h (13mph)17km/h (11mph)
Gusts27km/h (17mph)20km/h (13mph)24km/h (15mph)30km/h (18mph)27km/h (17mph)30km/h (19mph)36km/h (22mph)26km/h (16mph)
Direction 80°
E
84°
E
74°
ENE
99°
E
104°
ESE
97°
E
92°
E
103°
ESE
Wind chill16°C (61°F)16°C (61°F)16°C (61°F)18°C (64°F)18°C (64°F)18°C (64°F)17°C (62°F)18°C (64°F)
Waves
Height1.1m (3.5ft)1.0m (3.4ft)0.9m (3.1ft)1.2m (3.9ft)1.6m (5.2ft)1.5m (5.0ft)1.8m (5.8ft)1.7m (5.7ft)
Direction 313°
NW
324°
NW
17°
NNE
59°
ENE
68°
ENE
72°
ENE
80°
E
82°
E
Period7.3 sec.4.6 sec.6.5 sec.9.7 sec.5.8 sec.5.6 sec.15.3 sec.14.7 sec.
Significant height1.1m (3.6ft)0.8m (2.6ft)0.6m (2ft)1.1m (3.6ft)1.2m (3.9ft)1.0m (3.3ft)1.4m (4.6ft)1.2m (3.9ft)
Sea water temperature
Water temperature24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 07:10 and will set at 17:21 on the beach(es) of Yakushima. The outside temperature will be a high of 67°F t and a low of 65°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 8.7mph km/h (with gusts up to 13.7mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature18°C (65°F)18°C (65°F)18°C (65°F)19°C (65°F)19°C (66°F)19°C (66°F)18°C (64°F)18°C (65°F)
Perceived temperature18°C (65°F)18°C (65°F)18°C (65°F)19°C (65°F)19°C (66°F)19°C (66°F)18°C (64°F)18°C (65°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity62%63%65%64%63%65%70%73%
Barometric pressure1022 hPa1022 hPa1021 hPa1022 hPa1021 hPa1020 hPa1022 hPa1023 hPa
Cloud cover38%12%44%21%14%18%15%18%
Heat index18°C (65°F)18°C (65°F)18°C (65°F)19°C (65°F)19°C (66°F)19°C (66°F)18°C (64°F)18°C (65°F)
Dew point11°C (51°F)11°C (52°F)11°C (52°F)12°C (53°F)12°C (53°F)12°C (54°F)12°C (54°F)13°C (56°F)
Wind
Speed14km/h (9mph)10km/h (6mph)13km/h (8mph)12km/h (8mph)14km/h (9mph)13km/h (8mph)13km/h (8mph)13km/h (8mph)
Gusts21km/h (13mph)15km/h (9mph)19km/h (12mph)17km/h (11mph)20km/h (13mph)19km/h (12mph)22km/h (14mph)19km/h (12mph)
Direction 122°
ESE
119°
ESE
83°
E
93°
E
84°
E
78°
ENE
76°
ENE
75°
ENE
Wind chill18°C (65°F)18°C (65°F)18°C (65°F)19°C (65°F)19°C (66°F)19°C (66°F)18°C (64°F)18°C (65°F)
Waves
Height1.6m (5.4ft)1.6m (5.1ft)1.5m (4.9ft)1.4m (4.5ft)1.3m (4.4ft)1.4m (4.6ft)1.4m (4.6ft)1.4m (4.8ft)
Direction 79°
ENE
83°
E
86°
E
88°
E
81°
E
79°
ENE
79°
E
79°
E
Period14.7 sec.14.6 sec.14.5 sec.7.2 sec.7.7 sec.10.6 sec.9.9 sec.9.5 sec.
Significant height0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)0.5m (1.6ft)0.6m (2ft)0.2m (0.7ft)0.3m (1ft)0.6m (2ft)
Sea water temperature
Water temperature24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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