Sea weather in Iheya-jima in Japan All the beach weather in Iheya-jima

All the essential weather information for enjoying the beach in Iheya-jima 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 Iheya-jima over the next 7 days?

Discover the best moment to go to the beach in Iheya-jima in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Iheya-jima. 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 202565°F to 67°Fdiscouraged
Saturday 6 December 202567°F to 70°Fdiscouraged
Sunday 7 December 202568°F to 72°Fdiscouraged
Monday 8 December 202568°F to 70°Fdiscouraged
Tuesday 9 December 202568°F to 70°Fdiscouraged
Wednesday 10 December 202568°F to 72°Fdiscouraged
Thursday 11 December 202570°F to 74°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Iheya-jima

Sea weather on Friday 5 December 2025

On Friday 5 December 2025, the sun will rise at 07:03 and will set at 17:35 on the beach(es) of Iheya-jima. 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 19.9mph km/h (with gusts up to 24.2mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (65°F)19°C (66°F)19°C (65°F)19°C (66°F)19°C (65°F)19°C (66°F)19°C (66°F)19°C (66°F)
Perceived temperature19°C (65°F)19°C (66°F)19°C (65°F)19°C (66°F)19°C (65°F)19°C (66°F)19°C (66°F)19°C (66°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%63%63%51%60%59%55%61%
Barometric pressure1024 hPa1023 hPa1023 hPa1024 hPa1023 hPa1021 hPa1021 hPa1022 hPa
Cloud cover73%89%74%68%100%99%83%73%
Heat index19°C (65°F)19°C (66°F)19°C (65°F)19°C (66°F)19°C (65°F)19°C (66°F)19°C (66°F)19°C (66°F)
Dew point12°C (53°F)11°C (53°F)11°C (53°F)9°C (48°F)11°C (51°F)11°C (51°F)10°C (50°F)12°C (53°F)
Wind
Speed24km/h (15mph)24km/h (15mph)32km/h (20mph)28km/h (17mph)24km/h (15mph)29km/h (18mph)27km/h (17mph)27km/h (17mph)
Gusts29km/h (18mph)29km/h (18mph)39km/h (24mph)35km/h (22mph)31km/h (19mph)38km/h (24mph)35km/h (22mph)35km/h (22mph)
Direction 32°
NNE
18°
NNE
10°
N
16°
NNE
46°
NE
24°
NNE
27°
NNE
43°
NE
Wind chill19°C (65°F)19°C (66°F)19°C (65°F)19°C (66°F)19°C (65°F)19°C (66°F)19°C (66°F)19°C (66°F)
Waves
Height1.7m (5.6ft)1.5m (5.1ft)1.4m (4.8ft)1.5m (5.1ft)1.5m (5.1ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (4.1ft)
Direction 348°
NNW
348°
NNW
348°
NNW
349°
N
350°
N
350°
N
349°
N
351°
N
Period8.3 sec.8.1 sec.9.0 sec.8.9 sec.8.5 sec.8.6 sec.9.1 sec.9.1 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)1.1m (3.6ft)1.2m (3.9ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)
Sea water temperature
Water temperature24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)

Sea weather on Saturday 6 December 2025

On Saturday 6 December 2025, the sun will rise at 07:04 and will set at 17:35 on the beach(es) of Iheya-jima. The outside temperature will be a high of 70°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 14.3mph km/h (with gusts up to 19.3mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (67°F)19°C (67°F)20°C (67°F)20°C (68°F)20°C (67°F)20°C (67°F)20°C (67°F)21°C (69°F)
Perceived temperature20°C (67°F)19°C (67°F)20°C (67°F)20°C (68°F)20°C (67°F)20°C (67°F)20°C (67°F)21°C (69°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity57%62%61%59%61%59%61%60%
Barometric pressure1021 hPa1020 hPa1021 hPa1022 hPa1021 hPa1020 hPa1021 hPa1022 hPa
Cloud cover88%52%76%30%22%24%33%95%
Heat index20°C (67°F)19°C (67°F)20°C (67°F)20°C (68°F)20°C (67°F)20°C (67°F)20°C (67°F)21°C (69°F)
Dew point11°C (52°F)12°C (54°F)12°C (53°F)12°C (53°F)12°C (53°F)11°C (53°F)12°C (53°F)13°C (55°F)
Wind
Speed22km/h (14mph)22km/h (13mph)22km/h (13mph)22km/h (13mph)19km/h (12mph)18km/h (11mph)21km/h (13mph)23km/h (14mph)
Gusts27km/h (17mph)27km/h (17mph)27km/h (17mph)27km/h (17mph)27km/h (17mph)26km/h (16mph)31km/h (19mph)30km/h (19mph)
Direction 43°
NE
33°
NNE
44°
NE
30°
NNE
34°
NNE
44°
NE
55°
NE
62°
ENE
Wind chill20°C (67°F)19°C (67°F)20°C (67°F)20°C (68°F)20°C (67°F)20°C (67°F)20°C (67°F)21°C (69°F)
Waves
Height1.2m (4.0ft)1.1m (3.8ft)1.1m (3.6ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.8ft)1.2m (3.9ft)1.2m (4.1ft)
Direction 353°
N
353°
N
353°
N
13°
NNE

N
358°
N
355°
N
353°
N
Period6.4 sec.6.5 sec.6.7 sec.8.0 sec.7.6 sec.7.4 sec.7.2 sec.7.0 sec.
Significant height0.7m (2.3ft)0.5m (1.6ft)1.0m (3.3ft)0.5m (1.6ft)0.4m (1.3ft)0.6m (2ft)1.2m (3.9ft)1.3m (4.3ft)
Sea water temperature
Water temperature24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)

Sea weather on Sunday 7 December 2025

On Sunday 7 December 2025, the sun will rise at 07:04 and will set at 17:35 on the beach(es) of Iheya-jima. The outside temperature will be a high of 72°F t and a low of 68°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 19.3mph km/h (with gusts up to 24.2mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (69°F)20°C (69°F)20°C (68°F)20°C (68°F)21°C (69°F)21°C (69°F)21°C (70°F)22°C (71°F)
Perceived temperature20°C (69°F)20°C (69°F)20°C (68°F)20°C (68°F)21°C (69°F)21°C (69°F)21°C (70°F)22°C (71°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity63%61%64%62%60%60%59%57%
Barometric pressure1022 hPa1021 hPa1021 hPa1022 hPa1021 hPa1020 hPa1021 hPa1022 hPa
Cloud cover50%28%81%17%64%62%66%93%
Heat index20°C (69°F)20°C (69°F)20°C (68°F)20°C (68°F)21°C (69°F)21°C (69°F)21°C (70°F)24°C (76°F)
Dew point13°C (55°F)13°C (55°F)13°C (56°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)
Wind
Speed23km/h (15mph)29km/h (18mph)31km/h (19mph)29km/h (18mph)28km/h (17mph)27km/h (17mph)28km/h (17mph)29km/h (18mph)
Gusts30km/h (19mph)37km/h (23mph)39km/h (24mph)37km/h (23mph)38km/h (24mph)38km/h (24mph)39km/h (24mph)39km/h (24mph)
Direction 55°
NE
41°
NE
51°
NE
66°
ENE
64°
ENE
59°
ENE
61°
ENE
76°
ENE
Wind chill20°C (69°F)20°C (69°F)20°C (68°F)20°C (68°F)21°C (69°F)21°C (69°F)21°C (70°F)22°C (71°F)
Waves
Height1.2m (4.1ft)1.2m (3.9ft)1.2m (4.1ft)1.3m (4.2ft)1.2m (4.0ft)1.2m (3.8ft)1.1m (3.7ft)1.1m (3.7ft)
Direction 354°
N

N
26°
NNE
38°
NE
49°
NE
56°
ENE
46°
NE
52°
NE
Period6.9 sec.8.9 sec.8.8 sec.8.8 sec.5.3 sec.5.4 sec.6.6 sec.6.0 sec.
Significant height1.2m (3.9ft)1.0m (3.3ft)1.2m (3.9ft)1.3m (4.3ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)0.9m (3ft)
Sea water temperature
Water temperature24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)

Sea weather on Monday 8 December 2025

On Monday 8 December 2025, the sun will rise at 07:05 and will set at 17:35 on the beach(es) of Iheya-jima. The outside temperature will be a high of 70°F t and a low of 68°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 28mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (70°F)21°C (70°F)20°C (68°F)20°C (69°F)20°C (68°F)21°C (69°F)20°C (68°F)21°C (69°F)
Perceived temperature21°C (70°F)21°C (70°F)20°C (68°F)20°C (69°F)20°C (68°F)21°C (69°F)20°C (68°F)21°C (69°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity64%58%69%68%67%68%66%64%
Barometric pressure1022 hPa1021 hPa1021 hPa1023 hPa1022 hPa1020 hPa1021 hPa1022 hPa
Cloud cover92%88%69%100%38%100%64%86%
Heat index24°C (76°F)24°C (76°F)20°C (68°F)20°C (69°F)20°C (68°F)21°C (69°F)20°C (68°F)21°C (69°F)
Dew point14°C (57°F)13°C (55°F)14°C (58°F)14°C (57°F)14°C (57°F)14°C (58°F)14°C (56°F)14°C (56°F)
Wind
Speed27km/h (17mph)19km/h (12mph)26km/h (16mph)28km/h (18mph)29km/h (18mph)30km/h (18mph)32km/h (20mph)33km/h (21mph)
Gusts34km/h (21mph)25km/h (16mph)33km/h (20mph)36km/h (22mph)40km/h (25mph)39km/h (24mph)45km/h (28mph)43km/h (27mph)
Direction 68°
ENE
50°
NE
34°
NE
30°
NNE
37°
NE
40°
NE
32°
NNE
24°
NNE
Wind chill21°C (70°F)21°C (70°F)20°C (68°F)20°C (69°F)20°C (68°F)21°C (69°F)20°C (68°F)21°C (69°F)
Waves
Height1.1m (3.5ft)1.1m (3.5ft)1.0m (3.4ft)1.0m (3.4ft)1.1m (3.8ft)1.3m (4.2ft)1.3m (4.3ft)1.4m (4.7ft)
Direction 107°
ESE
108°
ESE
107°
ESE
105°
ESE
104°
ESE
103°
ESE
103°
ESE
27°
NNE
Period6.0 sec.6.0 sec.5.9 sec.8.5 sec.8.5 sec.8.5 sec.8.5 sec.8.6 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)1.5m (4.9ft)1.3m (4.3ft)1.6m (5.2ft)1.6m (5.2ft)1.7m (5.6ft)
Sea water temperature
Water temperature24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)

Sea weather on Tuesday 9 December 2025

On Tuesday 9 December 2025, the sun will rise at 07:06 and will set at 17:35 on the beach(es) of Iheya-jima. The outside temperature will be a high of 70°F t and a low of 68°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 23.6mph km/h (with gusts up to 31.7mph). Wave height will be up to 7.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (70°F)21°C (70°F)20°C (69°F)20°C (68°F)20°C (67°F)20°C (68°F)20°C (69°F)21°C (69°F)
Perceived temperature21°C (70°F)21°C (70°F)20°C (69°F)20°C (68°F)20°C (67°F)20°C (68°F)20°C (69°F)21°C (69°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity55%55%67%62%61%56%57%56%
Barometric pressure1021 hPa1021 hPa1021 hPa1023 hPa1022 hPa1021 hPa1021 hPa1023 hPa
Cloud cover100%82%100%82%89%78%86%58%
Heat index24°C (76°F)24°C (76°F)20°C (69°F)20°C (68°F)20°C (67°F)20°C (68°F)20°C (69°F)21°C (69°F)
Dew point12°C (53°F)12°C (53°F)14°C (57°F)13°C (55°F)12°C (53°F)11°C (52°F)12°C (53°F)12°C (53°F)
Wind
Speed30km/h (19mph)32km/h (20mph)38km/h (24mph)35km/h (22mph)32km/h (20mph)33km/h (20mph)36km/h (23mph)35km/h (22mph)
Gusts39km/h (24mph)41km/h (25mph)48km/h (30mph)44km/h (27mph)42km/h (26mph)44km/h (27mph)51km/h (32mph)45km/h (28mph)
Direction 25°
NNE
31°
NNE
37°
NE
35°
NE
36°
NE
36°
NE
42°
NE
53°
NE
Wind chill21°C (70°F)21°C (70°F)20°C (69°F)20°C (68°F)20°C (67°F)20°C (68°F)20°C (69°F)21°C (69°F)
Waves
Height1.5m (5.0ft)1.5m (5.0ft)2.0m (6.5ft)2.4m (8.0ft)2.3m (7.7ft)2.3m (7.5ft)2.4m (7.7ft)2.4m (7.9ft)
Direction 18°
NNE

N

N

N

N
358°
N
354°
N
355°
N
Period8.5 sec.8.5 sec.8.7 sec.8.7 sec.8.5 sec.8.6 sec.8.8 sec.8.8 sec.
Significant height1.7m (5.6ft)1.6m (5.2ft)1.9m (6.2ft)1.8m (5.9ft)1.6m (5.2ft)1.6m (5.2ft)1.7m (5.6ft)1.7m (5.6ft)
Sea water temperature
Water temperature24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)

Sea weather on Wednesday 10 December 2025

On Wednesday 10 December 2025, the sun will rise at 07:07 and will set at 17:35 on the beach(es) of Iheya-jima. The outside temperature will be a high of 72°F t and a low of 68°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 24.9mph km/h (with gusts up to 32.3mph). Wave height will be up to 7.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (70°F)20°C (69°F)21°C (71°F)21°C (70°F)21°C (71°F)22°C (71°F)21°C (70°F)22°C (71°F)
Perceived temperature21°C (70°F)20°C (69°F)21°C (71°F)21°C (70°F)21°C (71°F)22°C (71°F)21°C (70°F)22°C (71°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity59%76%70%67%57%56%68%77%
Barometric pressure1022 hPa1021 hPa1020 hPa1021 hPa1021 hPa1019 hPa1019 hPa1020 hPa
Cloud cover84%87%96%79%35%42%21%79%
Heat index21°C (70°F)20°C (69°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)
Dew point13°C (55°F)16°C (61°F)16°C (60°F)15°C (59°F)13°C (55°F)12°C (54°F)15°C (59°F)17°C (63°F)
Wind
Speed30km/h (18mph)30km/h (19mph)36km/h (22mph)40km/h (25mph)33km/h (20mph)29km/h (18mph)30km/h (19mph)31km/h (19mph)
Gusts38km/h (24mph)38km/h (24mph)52km/h (33mph)51km/h (31mph)45km/h (28mph)41km/h (26mph)46km/h (28mph)42km/h (26mph)
Direction 53°
NE
77°
ENE
98°
E
91°
E
92°
E
100°
E
86°
E
111°
ESE
Wind chill21°C (70°F)20°C (69°F)21°C (71°F)21°C (70°F)21°C (71°F)22°C (71°F)21°C (70°F)22°C (71°F)
Waves
Height2.3m (7.4ft)2.0m (6.6ft)1.9m (6.1ft)1.9m (6.3ft)1.8m (6.1ft)1.6m (5.3ft)1.5m (4.9ft)1.4m (4.6ft)
Direction 358°
N
359°
N

N
12°
NNE
31°
NNE
33°
NNE
36°
NE
45°
NE
Period8.4 sec.7.9 sec.7.7 sec.7.5 sec.7.4 sec.7.2 sec.7.0 sec.6.9 sec.
Significant height1.5m (4.9ft)0.8m (2.6ft)1.1m (3.6ft)1.2m (3.9ft)0.9m (3ft)0.8m (2.6ft)1.6m (5.2ft)1.4m (4.6ft)
Sea water temperature
Water temperature24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)

Sea weather on Thursday 11 December 2025

On Thursday 11 December 2025, the sun will rise at 07:07 and will set at 17:36 on the beach(es) of Iheya-jima. The outside temperature will be a high of 74°F t and a low of 70°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 24.9mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (71°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (72°F)23°C (73°F)
Perceived temperature21°C (71°F)25°C (76°F)25°C (76°F)25°C (76°F)25°C (76°F)25°C (76°F)25°C (76°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%76%80%79%79%74%70%72%
Barometric pressure1019 hPa1018 hPa1018 hPa1019 hPa1018 hPa1016 hPa1017 hPa1018 hPa
Cloud cover100%88%91%72%70%45%47%44%
Heat index24°C (76°F)25°C (76°F)25°C (76°F)25°C (76°F)25°C (76°F)25°C (76°F)25°C (76°F)25°C (77°F)
Dew point18°C (64°F)18°C (64°F)18°C (65°F)18°C (65°F)18°C (65°F)17°C (63°F)16°C (62°F)17°C (63°F)
Wind
Speed32km/h (20mph)25km/h (16mph)21km/h (13mph)12km/h (8mph)15km/h (9mph)21km/h (13mph)24km/h (15mph)18km/h (11mph)
Gusts40km/h (25mph)33km/h (21mph)27km/h (17mph)18km/h (11mph)21km/h (13mph)31km/h (19mph)36km/h (22mph)24km/h (15mph)
Direction 106°
ESE
111°
ESE
105°
ESE
90°
E
347°
NNW
352°
N

N
21°
NNE
Wind chill21°C (71°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (72°F)23°C (73°F)
Waves
Height1.4m (4.7ft)1.4m (4.8ft)1.3m (4.4ft)1.2m (4.0ft)1.1m (3.7ft)1.2m (3.8ft)1.4m (4.5ft)1.4m (4.6ft)
Direction 63°
ENE
93°
E
94°
E
96°
E
95°
E
95°
E
96°
E
96°
E
Period6.7 sec.8.3 sec.8.5 sec.8.8 sec.8.9 sec.9.0 sec.9.1 sec.9.1 sec.
Significant height1.1m (3.6ft)0.5m (1.6ft)0.1m (0.3ft)0.3m (1ft)0.5m (1.6ft)0.7m (2.3ft)0.8m (2.6ft)1.5m (4.9ft)
Sea water temperature
Water temperature24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)24°C (76°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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