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
Monday 20 July 202676°F to 85°Frecommended
Tuesday 21 July 202677°F to 85°Frecommended
Wednesday 22 July 202676°F to 85°Frecommended
Thursday 23 July 202676°F to 85°Frecommended
Friday 24 July 202676°F to 85°Frecommended
Saturday 25 July 202683°F to 83°Fdiscouraged
Sunday 26 July 202681°F to 83°Fdiscouraged

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

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 05:46 and will set at 19:23 on the beach(es) of Iheya-jima. The outside temperature will be a high of 85°F t and a low of 76°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 14.3mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (83°F)29°C (84°F)29°C (83°F)28°C (83°F)
Perceived temperature34°C (92°F)33°C (92°F)33°C (91°F)33°C (91°F)32°C (90°F)34°C (93°F)34°C (93°F)34°C (93°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%87%85%80%75%79%82%86%
Barometric pressure1008 hPa1008 hPa1008 hPa1009 hPa1009 hPa1008 hPa1008 hPa1009 hPa
Cloud cover7%7%4%11%74%32%82%64%
Heat index34°C (92°F)33°C (92°F)33°C (91°F)33°C (91°F)32°C (90°F)34°C (93°F)34°C (93°F)34°C (93°F)
Dew point25°C (77°F)26°C (78°F)25°C (77°F)24°C (76°F)24°C (74°F)25°C (76°F)25°C (77°F)26°C (78°F)
Wind
Speed10km/h (6mph)10km/h (6mph)9km/h (5mph)11km/h (7mph)7km/h (4mph)14km/h (9mph)13km/h (8mph)15km/h (9mph)
Gusts14km/h (9mph)15km/h (9mph)12km/h (8mph)16km/h (10mph)11km/h (7mph)22km/h (13mph)18km/h (11mph)23km/h (15mph)
Direction 203°
SSW
223°
SW
196°
SSW
156°
SSE
175°
S
224°
SW
217°
SW
220°
SW
Wind chill28°C (83°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (83°F)29°C (84°F)29°C (83°F)28°C (83°F)
Waves
Height0.6m (1.8ft)0.5m (1.7ft)0.5m (1.8ft)0.6m (1.9ft)0.6m (1.9ft)0.6m (1.9ft)0.6m (1.9ft)0.6m (1.9ft)
Direction 257°
WSW
253°
WSW
260°
W
262°
W
259°
W
258°
WSW
256°
WSW
256°
WSW
Period6.7 sec.6.6 sec.7.7 sec.7.5 sec.7.0 sec.6.8 sec.6.5 sec.6.3 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.5m (1.6ft)0.6m (2ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 05:47 and will set at 19:23 on the beach(es) of Iheya-jima. The outside temperature will be a high of 85°F t and a low of 77°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 18mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (83°F)29°C (83°F)29°C (84°F)25°C (78°F)27°C (81°F)28°C (83°F)28°C (83°F)
Perceived temperature34°C (93°F)33°C (92°F)34°C (93°F)34°C (93°F)27°C (81°F)30°C (86°F)32°C (90°F)34°C (93°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity86%84%81%77%76%77%78%85%
Barometric pressure1009 hPa1008 hPa1009 hPa1010 hPa1010 hPa1009 hPa1009 hPa1010 hPa
Cloud cover89%5%10%6%5%5%83%11%
Heat index34°C (93°F)33°C (92°F)34°C (93°F)34°C (93°F)27°C (81°F)30°C (86°F)32°C (90°F)34°C (93°F)
Dew point26°C (78°F)25°C (78°F)25°C (77°F)24°C (76°F)21°C (70°F)23°C (73°F)24°C (75°F)26°C (78°F)
Wind
Speed17km/h (11mph)16km/h (10mph)14km/h (9mph)13km/h (8mph)13km/h (8mph)14km/h (9mph)10km/h (6mph)9km/h (6mph)
Gusts26km/h (16mph)24km/h (15mph)21km/h (13mph)20km/h (12mph)27km/h (17mph)29km/h (18mph)16km/h (10mph)14km/h (9mph)
Direction 216°
SW
220°
SW
226°
SW
221°
SW
239°
WSW
244°
WSW
223°
SW
221°
SW
Wind chill28°C (83°F)28°C (83°F)29°C (83°F)29°C (84°F)25°C (78°F)27°C (81°F)28°C (83°F)28°C (83°F)
Waves
Height0.6m (1.9ft)0.6m (2.1ft)0.6m (2.1ft)0.6m (2.0ft)0.6m (1.9ft)0.6m (1.9ft)0.6m (2.0ft)0.6m (1.9ft)
Direction 79°
E
75°
ENE
72°
ENE
74°
ENE
74°
ENE
69°
ENE
78°
ENE
79°
ENE
Period6.1 sec.9.5 sec.7.4 sec.7.0 sec.6.8 sec.6.6 sec.9.0 sec.6.1 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.8m (2.6ft)0.6m (2ft)0.8m (2.6ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 05:47 and will set at 19:22 on the beach(es) of Iheya-jima. The outside temperature will be a high of 85°F t and a low of 76°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 12.4mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)24°C (76°F)28°C (83°F)29°C (84°F)29°C (83°F)
Perceived temperature34°C (93°F)33°C (91°F)33°C (91°F)33°C (91°F)26°C (79°F)32°C (90°F)33°C (92°F)34°C (93°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%87%84%83%80%75%73%80%
Barometric pressure1010 hPa1009 hPa1010 hPa1011 hPa1011 hPa1010 hPa1009 hPa1010 hPa
Cloud cover82%84%10%10%10%15%74%23%
Heat index34°C (93°F)33°C (91°F)33°C (91°F)33°C (91°F)26°C (79°F)32°C (90°F)33°C (92°F)34°C (93°F)
Dew point26°C (78°F)25°C (78°F)25°C (77°F)25°C (77°F)21°C (69°F)23°C (74°F)24°C (75°F)25°C (77°F)
Wind
Speed13km/h (8mph)14km/h (9mph)11km/h (7mph)9km/h (6mph)7km/h (4mph)5km/h (3mph)4km/h (3mph)3km/h (2mph)
Gusts19km/h (12mph)20km/h (13mph)16km/h (10mph)13km/h (8mph)14km/h (9mph)8km/h (5mph)6km/h (4mph)5km/h (3mph)
Direction 223°
SW
226°
SW
227°
SW
216°
SW
229°
SW
176°
S
144°
SE
150°
SSE
Wind chill28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)24°C (76°F)28°C (83°F)29°C (84°F)29°C (83°F)
Waves
Height0.5m (1.8ft)0.5m (1.7ft)0.5m (1.6ft)0.5m (1.5ft)0.4m (1.4ft)0.4m (1.4ft)0.4m (1.4ft)0.4m (1.4ft)
Direction 79°
E
79°
E
79°
E
79°
E
79°
E
80°
E
80°
E
80°
E
Period8.9 sec.8.9 sec.5.7 sec.5.7 sec.8.6 sec.8.5 sec.8.5 sec.8.4 sec.
Significant height0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 05:48 and will set at 19:22 on the beach(es) of Iheya-jima. The outside temperature will be a high of 85°F t and a low of 76°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 6.2mph km/h (with gusts up to 8.7mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (82°F)28°C (82°F)28°C (82°F)24°C (76°F)26°C (79°F)29°C (83°F)29°C (83°F)
Perceived temperature33°C (91°F)32°C (90°F)32°C (90°F)32°C (89°F)26°C (79°F)28°C (83°F)32°C (90°F)33°C (91°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%82%82%81%78%74%72%75%
Barometric pressure1011 hPa1009 hPa1010 hPa1011 hPa1011 hPa1010 hPa1010 hPa1011 hPa
Cloud cover75%79%85%7%8%5%23%15%
Heat index33°C (91°F)32°C (90°F)32°C (90°F)32°C (89°F)26°C (79°F)28°C (83°F)32°C (90°F)33°C (91°F)
Dew point25°C (77°F)25°C (76°F)24°C (76°F)24°C (75°F)20°C (68°F)21°C (70°F)23°C (74°F)24°C (75°F)
Wind
Speed8km/h (5mph)10km/h (6mph)10km/h (6mph)7km/h (4mph)4km/h (2mph)3km/h (2mph)1km/h (1mph)5km/h (3mph)
Gusts11km/h (7mph)14km/h (9mph)14km/h (9mph)10km/h (6mph)8km/h (5mph)5km/h (3mph)2km/h (1mph)8km/h (5mph)
Direction 221°
SW
204°
SSW
221°
SW
217°
SW
230°
SW
243°
WSW
65°
ENE
95°
E
Wind chill28°C (83°F)28°C (82°F)28°C (82°F)28°C (82°F)24°C (76°F)26°C (79°F)29°C (83°F)29°C (83°F)
Waves
Height0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.2ft)0.3m (1.1ft)0.3m (1.1ft)
Direction 74°
ENE
77°
ENE
77°
ENE
76°
ENE
77°
ENE
77°
ENE
79°
E
79°
E
Period8.4 sec.8.3 sec.10.4 sec.10.3 sec.10.2 sec.10.1 sec.10.0 sec.9.9 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 05:48 and will set at 19:21 on the beach(es) of Iheya-jima. The outside temperature will be a high of 85°F t and a low of 76°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 13.7mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (82°F)28°C (82°F)28°C (82°F)24°C (75°F)28°C (82°F)29°C (83°F)28°C (82°F)
Perceived temperature33°C (91°F)32°C (89°F)32°C (89°F)31°C (89°F)26°C (79°F)32°C (89°F)33°C (91°F)32°C (90°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%80%79%78%76%75%75%82%
Barometric pressure1011 hPa1010 hPa1010 hPa1011 hPa1011 hPa1010 hPa1010 hPa1010 hPa
Cloud cover11%11%9%17%11%22%21%10%
Heat index33°C (91°F)32°C (89°F)32°C (89°F)31°C (89°F)26°C (79°F)32°C (89°F)33°C (91°F)32°C (90°F)
Dew point25°C (76°F)24°C (75°F)24°C (75°F)24°C (74°F)20°C (67°F)23°C (73°F)24°C (74°F)25°C (76°F)
Wind
Speed6km/h (4mph)6km/h (4mph)4km/h (2mph)7km/h (4mph)10km/h (6mph)13km/h (8mph)15km/h (9mph)15km/h (10mph)
Gusts9km/h (6mph)9km/h (5mph)5km/h (3mph)10km/h (6mph)20km/h (13mph)20km/h (12mph)21km/h (13mph)22km/h (14mph)
Direction 120°
ESE
136°
SE
100°
E
67°
ENE
48°
NE
45°
NE
57°
ENE
64°
ENE
Wind chill28°C (83°F)28°C (82°F)28°C (82°F)28°C (82°F)24°C (75°F)28°C (82°F)29°C (83°F)28°C (82°F)
Waves
Height0.3m (1.1ft)0.3m (1.1ft)0.3m (1.1ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)
Direction 79°
E
79°
E
79°
E
80°
E
80°
E
80°
E
80°
E
80°
E
Period9.8 sec.9.7 sec.9.7 sec.9.7 sec.9.7 sec.9.7 sec.9.7 sec.9.6 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Saturday 25 July 2026

On Saturday 25 July 2026, the sun will rise at 05:49 and will set at 19:21 on the beach(es) of Iheya-jima. The outside temperature will be a high of 83°F t and a low of 83°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 22.4mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (82°F)
Perceived temperature33°C (91°F)32°C (90°F)32°C (90°F)32°C (90°F)32°C (89°F)32°C (90°F)33°C (92°F)33°C (92°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%83%83%82%81%81%84%86%
Barometric pressure1010 hPa1009 hPa1010 hPa1011 hPa1011 hPa1009 hPa1008 hPa1009 hPa
Cloud cover9%48%82%43%68%48%77%8%
Heat index33°C (91°F)32°C (90°F)32°C (90°F)32°C (90°F)32°C (89°F)32°C (90°F)33°C (92°F)33°C (92°F)
Dew point25°C (76°F)24°C (76°F)25°C (76°F)24°C (76°F)24°C (75°F)24°C (76°F)25°C (77°F)25°C (78°F)
Wind
Speed16km/h (10mph)16km/h (10mph)20km/h (13mph)21km/h (13mph)20km/h (13mph)19km/h (12mph)23km/h (14mph)26km/h (16mph)
Gusts22km/h (14mph)23km/h (14mph)28km/h (17mph)31km/h (19mph)30km/h (19mph)28km/h (18mph)33km/h (21mph)36km/h (22mph)
Direction 74°
ENE
73°
ENE
56°
NE
63°
ENE
66°
ENE
51°
NE
63°
ENE
72°
ENE
Wind chill28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (83°F)28°C (82°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.1ft)0.3m (1.1ft)0.3m (1.1ft)0.4m (1.2ft)0.4m (1.2ft)
Direction 80°
E
80°
E
80°
E
80°
E
81°
E
82°
E
82°
E
82°
E
Period9.6 sec.9.6 sec.9.5 sec.9.5 sec.9.4 sec.9.3 sec.9.3 sec.9.2 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Sunday 26 July 2026

On Sunday 26 July 2026, the sun will rise at 05:49 and will set at 19:20 on the beach(es) of Iheya-jima. The outside temperature will be a high of 83°F t and a low of 81°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 22.4mph km/h (with gusts up to 31.7mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)27°C (81°F)28°C (82°F)28°C (82°F)28°C (82°F)
Perceived temperature33°C (91°F)33°C (91°F)32°C (90°F)32°C (90°F)32°C (89°F)32°C (89°F)33°C (91°F)32°C (90°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity87%87%83%84%85%84%85%86%
Barometric pressure1009 hPa1007 hPa1007 hPa1008 hPa1007 hPa1005 hPa1005 hPa1005 hPa
Cloud cover76%75%58%77%83%79%52%57%
Heat index33°C (91°F)33°C (91°F)32°C (90°F)32°C (90°F)32°C (89°F)32°C (89°F)33°C (91°F)32°C (90°F)
Dew point25°C (78°F)25°C (78°F)24°C (76°F)25°C (77°F)25°C (76°F)24°C (76°F)25°C (77°F)25°C (77°F)
Wind
Speed26km/h (16mph)24km/h (15mph)24km/h (15mph)26km/h (16mph)28km/h (17mph)31km/h (19mph)35km/h (21mph)36km/h (23mph)
Gusts35km/h (22mph)34km/h (21mph)33km/h (21mph)36km/h (22mph)42km/h (26mph)47km/h (30mph)49km/h (30mph)51km/h (32mph)
Direction 71°
ENE
74°
ENE
67°
ENE
59°
ENE
55°
NE
55°
NE
70°
ENE
73°
ENE
Wind chill28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)27°C (81°F)28°C (82°F)28°C (82°F)28°C (82°F)
Waves
Height0.4m (1.2ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.3ft)0.4m (1.4ft)0.5m (1.5ft)0.6m (1.8ft)
Direction 82°
E
82°
E
82°
E
82°
E
83°
E
83°
E
83°
E
84°
E
Period9.2 sec.9.2 sec.9.2 sec.9.1 sec.9.1 sec.9.0 sec.9.0 sec.8.9 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.8m (2.6ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units