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
Monday 15 December 202549°F to 58°Fdiscouraged
Tuesday 16 December 202552°F to 59°Frecommended
Wednesday 17 December 202558°F to 63°Frecommended
Thursday 18 December 202561°F to 63°Fdiscouraged
Friday 19 December 202561°F to 65°Frecommended
Saturday 20 December 202567°F to 68°Frecommended
Sunday 21 December 202563°F to 67°Fnot recommended

Sea Weather: Your daily and hourly sea weather in Yakushima

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 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 21.8mph km/h (with gusts up to 25.5mph). Wave height will be up to 8.2ft 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)9°C (49°F)13°C (56°F)
Perceived temperature11°C (51°F)11°C (51°F)11°C (51°F)10°C (51°F)11°C (52°F)11°C (52°F)7°C (45°F)12°C (54°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity64%64%64%70%64%62%61%60%
Barometric pressure1021 hPa1021 hPa1022 hPa1024 hPa1023 hPa1023 hPa1024 hPa1024 hPa
Cloud cover83%86%85%89%81%78%1%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)9°C (49°F)13°C (56°F)
Dew point7°C (44°F)7°C (44°F)7°C (44°F)7°C (45°F)6°C (43°F)6°C (42°F)2°C (36°F)6°C (42°F)
Wind
Speed35km/h (21mph)34km/h (21mph)31km/h (19mph)23km/h (15mph)18km/h (11mph)18km/h (11mph)16km/h (10mph)13km/h (8mph)
Gusts41km/h (25mph)40km/h (25mph)37km/h (23mph)28km/h (17mph)22km/h (14mph)25km/h (15mph)34km/h (21mph)17km/h (11mph)
Direction 318°
NW
319°
NW
331°
NNW
355°
N
353°
N
344°
NNW
342°
NNW
349°
N
Wind chill11°C (51°F)11°C (51°F)11°C (51°F)10°C (51°F)11°C (52°F)11°C (52°F)7°C (45°F)12°C (54°F)
Waves
Height2.5m (8.2ft)2.4m (7.8ft)2.1m (6.9ft)1.8m (5.9ft)1.6m (5.1ft)1.4m (4.5ft)1.3m (4.2ft)1.2m (3.8ft)
Direction 294°
WNW
294°
WNW
295°
WNW
301°
WNW
300°
WNW
302°
WNW
302°
WNW
303°
WNW
Period11.5 sec.11.1 sec.11.1 sec.11.2 sec.10.9 sec.10.3 sec.10.0 sec.9.8 sec.
Significant height1.6m (5.2ft)1.7m (5.6ft)1.4m (4.6ft)1.2m (3.9ft)1.0m (3.3ft)1.1m (3.6ft)1.2m (3.9ft)1.1m (3.6ft)
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 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 9.3mph km/h (with gusts up to 19.3mph). Wave height will be up to 3.3ft 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)14°C (58°F)14°C (57°F)14°C (57°F)11°C (52°F)14°C (58°F)
Perceived temperature12°C (54°F)12°C (54°F)12°C (54°F)13°C (56°F)13°C (56°F)13°C (55°F)9°C (48°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity61%63%63%59%57%59%62%61%
Barometric pressure1024 hPa1023 hPa1023 hPa1025 hPa1023 hPa1023 hPa1024 hPa1024 hPa
Cloud cover3%5%3%3%5%6%0%1%
Heat index13°C (56°F)13°C (56°F)13°C (56°F)14°C (58°F)14°C (57°F)14°C (57°F)11°C (52°F)14°C (58°F)
Dew point6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)4°C (39°F)7°C (45°F)
Wind
Speed11km/h (7mph)12km/h (7mph)12km/h (7mph)12km/h (7mph)12km/h (7mph)13km/h (8mph)15km/h (9mph)11km/h (7mph)
Gusts15km/h (10mph)16km/h (10mph)17km/h (11mph)15km/h (9mph)17km/h (11mph)21km/h (13mph)31km/h (19mph)16km/h (10mph)
Direction 336°
NNW
333°
NNW
325°
NW
320°
NW
316°
NW
321°
NW
324°
NW
315°
NW
Wind chill12°C (54°F)12°C (54°F)12°C (54°F)13°C (56°F)13°C (56°F)13°C (55°F)9°C (48°F)14°C (57°F)
Waves
Height1.0m (3.3ft)0.9m (3.0ft)0.8m (2.6ft)0.7m (2.4ft)0.7m (2.3ft)0.7m (2.2ft)0.6m (2.1ft)0.6m (1.9ft)
Direction 96°
E
97°
E
102°
ESE
103°
ESE
101°
ESE
102°
ESE
102°
ESE
102°
ESE
Period7.0 sec.6.7 sec.9.6 sec.9.5 sec.9.6 sec.9.7 sec.9.7 sec.9.7 sec.
Significant height1.2m (3.9ft)0.7m (2.3ft)0.9m (3ft)0.9m (3ft)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 63°F t and a low of 58°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 11.2mph km/h (with gusts up to 15.5mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (58°F)15°C (58°F)15°C (58°F)16°C (60°F)16°C (61°F)17°C (62°F)16°C (61°F)17°C (62°F)
Perceived temperature14°C (57°F)14°C (57°F)14°C (57°F)16°C (60°F)16°C (61°F)17°C (62°F)16°C (61°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity60%60%61%59%57%58%63%71%
Barometric pressure1023 hPa1023 hPa1023 hPa1024 hPa1022 hPa1021 hPa1021 hPa1022 hPa
Cloud cover2%5%26%79%72%73%56%74%
Heat index14°C (58°F)15°C (58°F)15°C (58°F)16°C (60°F)16°C (61°F)17°C (62°F)16°C (61°F)17°C (62°F)
Dew point7°C (44°F)7°C (44°F)7°C (45°F)8°C (46°F)8°C (46°F)9°C (47°F)9°C (48°F)11°C (52°F)
Wind
Speed10km/h (6mph)12km/h (7mph)12km/h (7mph)9km/h (6mph)11km/h (7mph)15km/h (10mph)15km/h (9mph)18km/h (11mph)
Gusts14km/h (9mph)17km/h (11mph)17km/h (11mph)12km/h (8mph)15km/h (10mph)21km/h (13mph)23km/h (15mph)25km/h (16mph)
Direction 306°
NW
302°
WNW
300°
WNW
272°
W
251°
WSW
264°
W
240°
WSW
264°
W
Wind chill14°C (57°F)14°C (57°F)14°C (57°F)16°C (60°F)16°C (61°F)17°C (62°F)16°C (61°F)17°C (62°F)
Waves
Height0.5m (1.8ft)0.5m (1.7ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.5ft)0.5m (1.7ft)0.6m (2.1ft)0.9m (2.9ft)
Direction 101°
ESE
105°
ESE
107°
ESE
106°
ESE
106°
ESE
103°
ESE
103°
ESE
284°
WNW
Period9.6 sec.8.8 sec.8.6 sec.8.6 sec.8.6 sec.8.7 sec.8.8 sec.8.8 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.7m (2.3ft)1.0m (3.3ft)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 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 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 14.9mph km/h (with gusts up to 20.5mph). Wave height will be up to 3.9ft 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)16°C (62°F)16°C (61°F)16°C (61°F)16°C (61°F)17°C (62°F)
Perceived temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (62°F)16°C (61°F)16°C (61°F)16°C (61°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%73%68%62%63%67%72%71%
Barometric pressure1021 hPa1022 hPa1022 hPa1024 hPa1023 hPa1022 hPa1023 hPa1024 hPa
Cloud cover60%79%79%14%87%75%54%55%
Heat index16°C (61°F)16°C (61°F)16°C (61°F)16°C (62°F)16°C (61°F)16°C (61°F)16°C (61°F)17°C (62°F)
Dew point12°C (54°F)11°C (52°F)10°C (50°F)9°C (48°F)9°C (48°F)10°C (50°F)11°C (52°F)11°C (52°F)
Wind
Speed21km/h (13mph)24km/h (15mph)19km/h (12mph)15km/h (9mph)10km/h (6mph)13km/h (8mph)18km/h (11mph)19km/h (12mph)
Gusts33km/h (20mph)33km/h (21mph)25km/h (16mph)20km/h (12mph)14km/h (9mph)19km/h (12mph)26km/h (16mph)25km/h (16mph)
Direction 321°
NW
327°
NNW
322°
NW
336°
NNW
23°
NNE
41°
NE
64°
ENE
67°
ENE
Wind chill16°C (61°F)16°C (61°F)16°C (61°F)16°C (62°F)16°C (61°F)16°C (61°F)16°C (61°F)17°C (62°F)
Waves
Height1.0m (3.4ft)1.2m (4.0ft)1.2m (4.1ft)1.0m (3.4ft)0.9m (3.1ft)0.9m (3.0ft)1.1m (3.6ft)1.1m (3.5ft)
Direction 295°
WNW
299°
WNW
301°
WNW
296°
WNW
295°
WNW
306°
NW
355°
N

N
Period8.9 sec.8.9 sec.9.1 sec.9.7 sec.6.2 sec.6.5 sec.6.6 sec.6.5 sec.
Significant height0.8m (2.6ft)1.2m (3.9ft)0.9m (3ft)0.7m (2.3ft)0.9m (3ft)0.8m (2.6ft)0.9m (3ft)0.8m (2.6ft)
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 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 11.2mph km/h (with gusts up to 14.9mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (62°F)17°C (62°F)16°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)17°C (63°F)18°C (65°F)
Perceived temperature17°C (62°F)17°C (62°F)16°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)17°C (63°F)18°C (65°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%68%76%76%72%71%71%68%
Barometric pressure1023 hPa1023 hPa1023 hPa1024 hPa1023 hPa1021 hPa1022 hPa1023 hPa
Cloud cover71%74%62%53%72%70%16%12%
Heat index17°C (62°F)17°C (62°F)16°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)17°C (63°F)18°C (65°F)
Dew point11°C (52°F)11°C (52°F)12°C (54°F)13°C (55°F)12°C (54°F)12°C (54°F)12°C (53°F)12°C (54°F)
Wind
Speed14km/h (9mph)13km/h (8mph)17km/h (11mph)18km/h (11mph)15km/h (9mph)12km/h (7mph)13km/h (8mph)12km/h (7mph)
Gusts19km/h (12mph)17km/h (11mph)23km/h (14mph)24km/h (15mph)21km/h (13mph)17km/h (11mph)21km/h (13mph)17km/h (10mph)
Direction 61°
ENE
62°
ENE
69°
ENE
71°
ENE
86°
E
93°
E
106°
ESE
128°
SE
Wind chill17°C (62°F)17°C (62°F)16°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)17°C (63°F)18°C (65°F)
Waves
Height1.0m (3.3ft)1.0m (3.4ft)1.1m (3.5ft)1.2m (3.8ft)1.2m (4.1ft)1.2m (4.1ft)1.2m (3.9ft)1.1m (3.5ft)
Direction 336°
NNW
47°
NE
57°
ENE
71°
ENE
68°
ENE
69°
ENE
70°
ENE
81°
E
Period6.4 sec.6.3 sec.9.2 sec.8.6 sec.5.3 sec.10.2 sec.15.1 sec.6.6 sec.
Significant height1.0m (3.3ft)0.9m (3ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)0.7m (2.3ft)
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 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 68°F t and a low of 67°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 11.8mph km/h (with gusts up to 17.4mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (66°F)19°C (66°F)20°C (67°F)20°C (68°F)20°C (68°F)20°C (67°F)19°C (65°F)19°C (66°F)
Perceived temperature19°C (66°F)19°C (66°F)20°C (67°F)20°C (68°F)20°C (68°F)20°C (67°F)19°C (65°F)19°C (66°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity70%73%72%72%70%77%81%80%
Barometric pressure1023 hPa1022 hPa1021 hPa1022 hPa1020 hPa1018 hPa1019 hPa1018 hPa
Cloud cover84%93%88%78%74%71%61%76%
Heat index19°C (66°F)19°C (66°F)20°C (67°F)20°C (68°F)20°C (68°F)20°C (67°F)19°C (65°F)19°C (66°F)
Dew point13°C (56°F)14°C (57°F)14°C (58°F)15°C (59°F)15°C (58°F)16°C (60°F)15°C (59°F)16°C (60°F)
Wind
Speed9km/h (6mph)10km/h (6mph)11km/h (7mph)18km/h (11mph)15km/h (9mph)17km/h (11mph)19km/h (12mph)14km/h (9mph)
Gusts13km/h (8mph)15km/h (9mph)16km/h (10mph)25km/h (15mph)21km/h (13mph)25km/h (16mph)28km/h (17mph)20km/h (12mph)
Direction 137°
SE
140°
SE
124°
SE
127°
SE
123°
ESE
106°
ESE
136°
SE
162°
SSE
Wind chill19°C (66°F)19°C (66°F)20°C (67°F)20°C (68°F)20°C (68°F)20°C (67°F)19°C (65°F)19°C (66°F)
Waves
Height1.0m (3.1ft)0.9m (2.9ft)0.9m (2.8ft)0.9m (2.9ft)0.9m (3.0ft)1.0m (3.1ft)1.0m (3.3ft)1.0m (3.2ft)
Direction 78°
ENE
94°
E
94°
E
99°
E
98°
E
71°
ENE
73°
ENE
95°
E
Period6.5 sec.6.5 sec.6.6 sec.9.4 sec.9.0 sec.8.7 sec.5.6 sec.5.7 sec.
Significant height0.6m (2ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.8m (2.6ft)
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 Sunday 21 December 2025

On Sunday 21 December 2025, the sun will rise at 07:11 and will set at 17:22 on the beach(es) of Yakushima. The outside temperature will be a high of 67°F t and a low of 63°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 26.1mph km/h (with gusts up to 34.8mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)
Perceived temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%83%86%84%84%84%84%80%
Barometric pressure1016 hPa1014 hPa1012 hPa1012 hPa1010 hPa1009 hPa1010 hPa1011 hPa
Cloud cover93%100%74%53%75%83%84%56%
Heat index19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)
Dew point16°C (60°F)16°C (61°F)16°C (62°F)16°C (61°F)16°C (62°F)16°C (61°F)15°C (59°F)13°C (56°F)
Wind
Speed13km/h (8mph)12km/h (7mph)6km/h (4mph)6km/h (4mph)13km/h (8mph)25km/h (15mph)40km/h (25mph)42km/h (26mph)
Gusts18km/h (11mph)16km/h (10mph)9km/h (6mph)8km/h (5mph)17km/h (11mph)35km/h (22mph)56km/h (35mph)54km/h (33mph)
Direction 159°
SSE
178°
S
178°
S
309°
NW
337°
NNW
326°
NNW
334°
NNW
324°
NW
Wind chill19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)
Waves
Height0.9m (3.0ft)0.8m (2.8ft)0.9m (2.8ft)0.9m (3.1ft)1.0m (3.2ft)1.0m (3.4ft)1.1m (3.5ft)1.1m (3.7ft)
Direction 95°
E
97°
E
102°
ESE
109°
ESE
110°
ESE
110°
ESE
109°
ESE
107°
ESE
Period5.7 sec.8.4 sec.8.9 sec.9.0 sec.8.8 sec.9.1 sec.8.9 sec.8.9 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.8m (2.6ft)0.9m (3ft)0.1m (0.3ft)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 chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units