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
Saturday 13 December 202561°F to 65°Fdiscouraged
Sunday 14 December 202556°F to 65°Fnot recommended
Monday 15 December 202556°F to 58°Fdiscouraged
Tuesday 16 December 202556°F to 59°Frecommended
Wednesday 17 December 202559°F to 65°Fdiscouraged
Thursday 18 December 202554°F to 65°Fdiscouraged
Friday 19 December 202561°F to 65°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Yakushima

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 07:06 and will set at 17:18 on the beach(es) of Yakushima. The outside temperature will be a high of 65°F t and a low of 61°F. Precipitation is in the forecast (0.3in 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 21.1mph km/h (with gusts up to 29.2mph). Wave height will be up to 7.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (60°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)
Perceived temperature16°C (60°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)
Precipitation0in0in0in0in0in0in0in0.2in
Humidity81%77%72%75%83%86%88%90%
Barometric pressure1024 hPa1022 hPa1022 hPa1022 hPa1019 hPa1016 hPa1014 hPa1015 hPa
Cloud cover100%75%57%64%78%65%78%100%
Heat index16°C (60°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)
Dew point12°C (54°F)12°C (54°F)12°C (53°F)12°C (54°F)14°C (57°F)15°C (59°F)16°C (60°F)16°C (61°F)
Wind
Speed34km/h (21mph)27km/h (17mph)29km/h (18mph)33km/h (21mph)31km/h (19mph)34km/h (21mph)33km/h (20mph)1km/h (1mph)
Gusts41km/h (26mph)35km/h (22mph)37km/h (23mph)42km/h (26mph)41km/h (25mph)46km/h (28mph)47km/h (29mph)2km/h (1mph)
Direction 63°
ENE
83°
E
102°
ESE
102°
ESE
97°
E
108°
ESE
117°
ESE
288°
WNW
Wind chill16°C (60°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)
Waves
Height2.4m (7.8ft)2.1m (7.0ft)2.0m (6.5ft)2.0m (6.6ft)2.0m (6.5ft)1.9m (6.2ft)2.0m (6.7ft)2.1m (6.8ft)
Direction 54°
NE
65°
ENE
70°
ENE
72°
ENE
73°
ENE
74°
ENE
81°
E
88°
E
Period7.1 sec.6.8 sec.10.2 sec.10.2 sec.10.1 sec.10.2 sec.8.0 sec.10.3 sec.
Significant height1.2m (3.9ft)0.9m (3ft)1.3m (4.3ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.4m (4.6ft)1.2m (3.9ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

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 65°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 29.2mph km/h (with gusts up to 36.7mph). Wave height will be up to 10.8ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature18°C (65°F)17°C (63°F)16°C (61°F)15°C (59°F)14°C (58°F)14°C (56°F)13°C (56°F)13°C (56°F)
Perceived temperature18°C (65°F)17°C (63°F)16°C (61°F)12°C (54°F)12°C (53°F)11°C (52°F)10°C (51°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%79%72%67%65%63%63%65%
Barometric pressure1014 hPa1013 hPa1015 hPa1017 hPa1017 hPa1018 hPa1019 hPa1021 hPa
Cloud cover74%88%96%62%82%71%68%80%
Heat index18°C (65°F)17°C (63°F)16°C (61°F)15°C (59°F)14°C (58°F)14°C (56°F)13°C (56°F)13°C (56°F)
Dew point15°C (59°F)14°C (57°F)11°C (52°F)9°C (48°F)8°C (46°F)7°C (44°F)6°C (43°F)7°C (44°F)
Wind
Speed34km/h (21mph)45km/h (28mph)47km/h (29mph)41km/h (26mph)40km/h (25mph)38km/h (24mph)37km/h (23mph)33km/h (21mph)
Gusts46km/h (28mph)56km/h (35mph)59km/h (37mph)48km/h (30mph)48km/h (30mph)46km/h (29mph)49km/h (30mph)41km/h (25mph)
Direction 307°
NW
301°
WNW
299°
WNW
302°
WNW
310°
NW
315°
NW
318°
NW
320°
NW
Wind chill18°C (65°F)17°C (63°F)16°C (61°F)12°C (54°F)12°C (53°F)11°C (52°F)10°C (51°F)11°C (51°F)
Waves
Height2.1m (6.8ft)2.7m (8.8ft)3.2m (10.6ft)3.2m (10.6ft)3.3m (10.8ft)3.0m (9.9ft)2.7m (8.9ft)2.4m (7.9ft)
Direction 96°
E
291°
WNW
294°
WNW
293°
WNW
293°
WNW
296°
WNW
295°
WNW
292°
WNW
Period7.7 sec.8.1 sec.8.0 sec.7.9 sec.10.8 sec.11.0 sec.11.5 sec.11.8 sec.
Significant height1.2m (3.9ft)2.6m (8.5ft)2.4m (7.9ft)2.3m (7.5ft)2.2m (7.2ft)2.0m (6.6ft)1.8m (5.9ft)1.4m (4.6ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°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 58°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 20.5mph km/h (with gusts up to 24.9mph). Wave height will be up to 7.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)13°C (56°F)14°C (56°F)14°C (56°F)14°C (58°F)14°C (57°F)13°C (55°F)14°C (57°F)
Perceived temperature11°C (52°F)11°C (51°F)11°C (52°F)11°C (52°F)13°C (55°F)13°C (55°F)11°C (52°F)12°C (54°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%65%62%62%54%56%58%59%
Barometric pressure1021 hPa1022 hPa1023 hPa1025 hPa1023 hPa1023 hPa1024 hPa1025 hPa
Cloud cover95%75%68%68%30%32%9%0%
Heat index13°C (56°F)13°C (56°F)14°C (56°F)14°C (56°F)14°C (58°F)14°C (57°F)13°C (55°F)14°C (57°F)
Dew point7°C (45°F)7°C (44°F)6°C (43°F)6°C (44°F)5°C (41°F)5°C (41°F)5°C (41°F)6°C (43°F)
Wind
Speed32km/h (20mph)33km/h (20mph)32km/h (20mph)27km/h (17mph)20km/h (12mph)15km/h (9mph)20km/h (12mph)15km/h (9mph)
Gusts39km/h (24mph)40km/h (25mph)39km/h (24mph)32km/h (20mph)25km/h (16mph)20km/h (13mph)33km/h (20mph)21km/h (13mph)
Direction 318°
NW
318°
NW
326°
NNW
336°
NNW
350°
N
351°
N
332°
NNW
346°
NNW
Wind chill11°C (52°F)11°C (51°F)11°C (52°F)11°C (52°F)13°C (55°F)13°C (55°F)11°C (52°F)12°C (54°F)
Waves
Height2.2m (7.3ft)2.2m (7.3ft)2.1m (6.9ft)1.9m (6.2ft)1.6m (5.2ft)1.3m (4.4ft)1.2m (3.9ft)1.1m (3.5ft)
Direction 290°
WNW
290°
WNW
293°
WNW
299°
WNW
300°
WNW
301°
WNW
301°
WNW
300°
WNW
Period11.6 sec.11.1 sec.11.0 sec.10.8 sec.8.2 sec.7.9 sec.7.5 sec.7.3 sec.
Significant height1.5m (4.9ft)1.4m (4.6ft)1.5m (4.9ft)1.3m (4.3ft)0.7m (2.3ft)0.5m (1.6ft)0.6m (2ft)1.0m (3.3ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°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 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 8.1mph km/h (with gusts up to 13.1mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (57°F)14°C (57°F)14°C (57°F)14°C (58°F)14°C (58°F)14°C (57°F)13°C (56°F)14°C (58°F)
Perceived temperature13°C (56°F)13°C (56°F)13°C (55°F)14°C (56°F)14°C (57°F)13°C (56°F)12°C (54°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity60%61%63%61%60%62%65%64%
Barometric pressure1024 hPa1024 hPa1024 hPa1025 hPa1023 hPa1022 hPa1023 hPa1024 hPa
Cloud cover3%6%9%9%14%83%7%22%
Heat index14°C (57°F)14°C (57°F)14°C (57°F)14°C (58°F)14°C (58°F)14°C (57°F)13°C (56°F)14°C (58°F)
Dew point6°C (43°F)6°C (44°F)7°C (45°F)7°C (45°F)7°C (44°F)7°C (44°F)7°C (44°F)8°C (46°F)
Wind
Speed11km/h (7mph)9km/h (6mph)13km/h (8mph)12km/h (7mph)11km/h (7mph)12km/h (7mph)12km/h (7mph)10km/h (6mph)
Gusts15km/h (9mph)13km/h (8mph)18km/h (11mph)15km/h (10mph)15km/h (10mph)18km/h (11mph)21km/h (13mph)14km/h (9mph)
Direction 341°
NNW
341°
NNW
334°
NNW
333°
NNW
328°
NNW
338°
NNW
343°
NNW
331°
NNW
Wind chill13°C (56°F)13°C (56°F)13°C (55°F)14°C (56°F)14°C (57°F)13°C (56°F)12°C (54°F)14°C (57°F)
Waves
Height1.0m (3.2ft)0.9m (2.9ft)0.8m (2.6ft)0.7m (2.4ft)0.7m (2.3ft)0.6m (2.1ft)0.6m (2.0ft)0.6m (1.9ft)
Direction 95°
E
97°
E
98°
E
99°
E
100°
E
101°
E
101°
ESE
101°
ESE
Period7.0 sec.6.7 sec.9.8 sec.9.7 sec.9.7 sec.9.7 sec.9.6 sec.9.6 sec.
Significant height1.1m (3.6ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°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 14.9mph km/h (with gusts up to 20.5mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (58°F)15°C (58°F)15°C (58°F)16°C (60°F)17°C (62°F)18°C (64°F)17°C (63°F)18°C (64°F)
Perceived temperature14°C (57°F)14°C (57°F)14°C (58°F)16°C (60°F)17°C (62°F)18°C (64°F)17°C (63°F)18°C (64°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity63%62%60%56%57%62%75%68%
Barometric pressure1023 hPa1022 hPa1022 hPa1022 hPa1020 hPa1018 hPa1019 hPa1019 hPa
Cloud cover18%4%11%20%28%74%76%56%
Heat index15°C (58°F)15°C (58°F)15°C (58°F)16°C (60°F)17°C (62°F)18°C (64°F)17°C (63°F)18°C (64°F)
Dew point8°C (46°F)7°C (45°F)7°C (44°F)7°C (44°F)8°C (47°F)10°C (50°F)13°C (55°F)12°C (54°F)
Wind
Speed10km/h (6mph)12km/h (8mph)8km/h (5mph)8km/h (5mph)15km/h (9mph)23km/h (14mph)21km/h (13mph)24km/h (15mph)
Gusts14km/h (9mph)17km/h (11mph)12km/h (7mph)10km/h (6mph)20km/h (13mph)30km/h (19mph)30km/h (18mph)33km/h (21mph)
Direction 315°
NW
310°
NW
290°
WNW
231°
SW
213°
SSW
235°
SW
269°
W
280°
W
Wind chill14°C (57°F)14°C (57°F)14°C (58°F)16°C (60°F)17°C (62°F)18°C (64°F)17°C (63°F)18°C (64°F)
Waves
Height0.6m (1.9ft)0.5m (1.8ft)0.5m (1.8ft)0.5m (1.7ft)0.6m (1.9ft)0.8m (2.8ft)1.0m (3.4ft)1.1m (3.5ft)
Direction 101°
ESE
101°
ESE
103°
ESE
102°
ESE
102°
ESE
102°
ESE
249°
WSW
296°
WNW
Period9.6 sec.9.6 sec.9.2 sec.9.1 sec.9.0 sec.8.9 sec.8.9 sec.8.9 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.9m (3ft)1.2m (3.9ft)1.2m (3.9ft)0.9m (3ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°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 65°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 19.9mph km/h (with gusts up to 24.2mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature18°C (64°F)16°C (61°F)15°C (60°F)15°C (60°F)13°C (55°F)12°C (54°F)16°C (60°F)16°C (61°F)
Perceived temperature18°C (64°F)16°C (61°F)15°C (60°F)15°C (60°F)11°C (52°F)11°C (52°F)16°C (60°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%73%74%69%63%61%62%58%
Barometric pressure1019 hPa1020 hPa1021 hPa1023 hPa1022 hPa1022 hPa1023 hPa1024 hPa
Cloud cover54%61%54%10%0%89%71%36%
Heat index18°C (64°F)16°C (61°F)15°C (60°F)15°C (60°F)13°C (55°F)12°C (54°F)16°C (60°F)16°C (61°F)
Dew point11°C (53°F)11°C (52°F)11°C (51°F)10°C (49°F)6°C (43°F)5°C (41°F)8°C (47°F)8°C (46°F)
Wind
Speed27km/h (17mph)32km/h (20mph)27km/h (17mph)25km/h (16mph)21km/h (13mph)12km/h (7mph)22km/h (14mph)23km/h (14mph)
Gusts36km/h (22mph)39km/h (24mph)34km/h (21mph)31km/h (19mph)37km/h (23mph)25km/h (15mph)31km/h (19mph)31km/h (19mph)
Direction 296°
WNW
331°
NNW
349°
NNW
346°
NNW
353°
N
30°
NNE
77°
ENE
75°
ENE
Wind chill18°C (64°F)16°C (61°F)15°C (60°F)15°C (60°F)11°C (52°F)11°C (52°F)16°C (60°F)16°C (61°F)
Waves
Height1.2m (3.8ft)1.5m (4.9ft)1.6m (5.2ft)1.4m (4.7ft)1.2m (4.0ft)1.1m (3.7ft)1.7m (5.6ft)1.8m (5.8ft)
Direction 298°
WNW
303°
WNW
301°
WNW
297°
WNW
299°
WNW
302°
WNW
30°
NNE
42°
NE
Period8.8 sec.8.8 sec.8.8 sec.9.5 sec.6.9 sec.7.3 sec.7.4 sec.7.1 sec.
Significant height1.0m (3.3ft)1.3m (4.3ft)1.3m (4.3ft)0.9m (3ft)0.5m (1.6ft)1.2m (3.9ft)1.4m (4.6ft)1.3m (4.3ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°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 16.2mph km/h (with gusts up to 23mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (60°F)16°C (61°F)17°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)
Perceived temperature16°C (60°F)16°C (61°F)17°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity63%75%65%70%65%64%63%63%
Barometric pressure1024 hPa1023 hPa1023 hPa1024 hPa1023 hPa1022 hPa1023 hPa1024 hPa
Cloud cover29%93%92%72%70%82%79%81%
Heat index16°C (60°F)16°C (61°F)17°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)
Dew point9°C (47°F)12°C (53°F)10°C (50°F)12°C (53°F)11°C (52°F)11°C (51°F)11°C (51°F)11°C (52°F)
Wind
Speed15km/h (10mph)18km/h (11mph)25km/h (15mph)26km/h (16mph)24km/h (15mph)25km/h (15mph)26km/h (16mph)21km/h (13mph)
Gusts22km/h (14mph)24km/h (15mph)32km/h (20mph)33km/h (21mph)33km/h (20mph)36km/h (22mph)37km/h (23mph)29km/h (18mph)
Direction 72°
ENE
84°
E
84°
E
78°
ENE
95°
E
103°
ESE
97°
E
90°
E
Wind chill16°C (60°F)16°C (61°F)17°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)
Waves
Height1.7m (5.6ft)1.7m (5.7ft)1.6m (5.2ft)1.4m (4.7ft)1.4m (4.6ft)1.5m (4.9ft)1.5m (4.8ft)1.4m (4.6ft)
Direction 47°
NE
61°
ENE
63°
ENE
65°
ENE
68°
ENE
79°
E
77°
ENE
80°
E
Period6.9 sec.6.4 sec.9.5 sec.9.3 sec.5.6 sec.15.9 sec.15.2 sec.12.0 sec.
Significant height1.3m (4.3ft)1.2m (3.9ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)1.2m (3.9ft)1.1m (3.6ft)1.2m (3.9ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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