Sea weather in Izu in Japan All the beach weather in Izu

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

Discover the best moment to go to the beach in Izu in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Izu. 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 202545°F to 49°Fdiscouraged
Sunday 14 December 202545°F to 52°Fnot recommended
Monday 15 December 202547°F to 52°Fnot recommended
Tuesday 16 December 202543°F to 50°Frecommended
Wednesday 17 December 202549°F to 52°Frecommended
Thursday 18 December 202549°F to 52°Fdiscouraged
Friday 19 December 202547°F to 54°Frecommended

Sea Weather: Your daily and hourly sea weather in Izu

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 06:42 and will set at 16:32 on the beach(es) of Izu. The outside temperature will be a high of 49°F t and a low of 45°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 18mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)7°C (45°F)7°C (44°F)7°C (45°F)7°C (45°F)8°C (46°F)8°C (47°F)8°C (47°F)
Perceived temperature5°C (41°F)4°C (40°F)3°C (38°F)4°C (40°F)5°C (41°F)5°C (42°F)5°C (41°F)5°C (41°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity58%59%56%55%56%67%79%84%
Barometric pressure1026 hPa1026 hPa1028 hPa1028 hPa1026 hPa1025 hPa1024 hPa1022 hPa
Cloud cover24%46%68%100%100%100%100%100%
Heat index8°C (46°F)7°C (45°F)7°C (44°F)7°C (45°F)7°C (45°F)8°C (46°F)8°C (47°F)8°C (47°F)
Dew point0°C (32°F)-0°C (32°F)-1°C (30°F)-1°C (30°F)-1°C (30°F)2°C (35°F)5°C (41°F)6°C (43°F)
Wind
Speed19km/h (12mph)18km/h (11mph)19km/h (12mph)16km/h (10mph)12km/h (8mph)12km/h (7mph)19km/h (12mph)23km/h (14mph)
Gusts24km/h (15mph)22km/h (14mph)24km/h (15mph)20km/h (13mph)16km/h (10mph)16km/h (10mph)25km/h (16mph)29km/h (18mph)
Direction 81°
E
70°
ENE
51°
NE
33°
NNE
30°
NNE
46°
NE
28°
NNE
17°
NNE
Wind chill5°C (41°F)4°C (40°F)3°C (38°F)4°C (40°F)5°C (41°F)5°C (42°F)5°C (41°F)5°C (41°F)
Waves
Height0.7m (2.4ft)0.7m (2.2ft)0.8m (2.5ft)0.8m (2.5ft)0.6m (2.1ft)0.6m (1.9ft)0.7m (2.2ft)0.8m (2.7ft)
Direction 44°
NE
99°
E
45°
NE
48°
NE
100°
E
100°
E
100°
E
100°
E
Period11.7 sec.11.6 sec.11.1 sec.11.0 sec.11.0 sec.11.1 sec.6.7 sec.5.5 sec.
Significant height0.8m (2.6ft)0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)0.7m (2.3ft)0.8m (2.6ft)0.9m (3ft)1.1m (3.6ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:43 and will set at 16:33 on the beach(es) of Izu. The outside temperature will be a high of 52°F t and a low of 45°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 36.7mph km/h (with gusts up to 41mph). Wave height will be up to 7.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (47°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (49°F)10°C (51°F)8°C (46°F)10°C (50°F)
Perceived temperature6°C (42°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)8°C (46°F)2°C (35°F)6°C (42°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity89%88%93%94%89%71%63%67%
Barometric pressure1018 hPa1014 hPa1010 hPa1006 hPa1002 hPa1000 hPa1001 hPa1004 hPa
Cloud cover100%100%100%100%100%0%0%0%
Heat index9°C (47°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (49°F)10°C (51°F)8°C (46°F)10°C (50°F)
Dew point7°C (44°F)7°C (45°F)8°C (46°F)8°C (47°F)7°C (45°F)5°C (42°F)1°C (34°F)4°C (40°F)
Wind
Speed19km/h (12mph)13km/h (8mph)13km/h (8mph)14km/h (9mph)17km/h (10mph)24km/h (15mph)59km/h (37mph)51km/h (32mph)
Gusts25km/h (15mph)18km/h (11mph)17km/h (11mph)19km/h (12mph)23km/h (14mph)27km/h (17mph)63km/h (39mph)66km/h (41mph)
Direction 13°
NNE
32°
NNE
39°
NE
43°
NE
14°
NNE
217°
SW
262°
W
254°
WSW
Wind chill6°C (42°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)8°C (46°F)2°C (35°F)6°C (42°F)
Waves
Height0.9m (3.0ft)0.9m (3.1ft)1.0m (3.2ft)1.0m (3.4ft)1.1m (3.7ft)1.5m (5.0ft)2.2m (7.2ft)2.4m (7.8ft)
Direction 136°
SE
133°
SE
127°
SE
130°
SE
133°
SE
134°
SE
143°
SE
158°
SSE
Period6.7 sec.6.6 sec.6.4 sec.6.5 sec.7.1 sec.10.0 sec.10.0 sec.10.2 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)1.2m (3.9ft)1.4m (4.6ft)1.6m (5.2ft)0.1m (0.3ft)1.8m (5.9ft)1.4m (4.6ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:44 and will set at 16:33 on the beach(es) of Izu. The outside temperature will be a high of 52°F t and a low of 47°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 30.5mph km/h (with gusts up to 39.8mph). Wave height will be up to 7.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (51°F)9°C (49°F)9°C (47°F)9°C (49°F)9°C (48°F)9°C (47°F)8°C (46°F)11°C (51°F)
Perceived temperature7°C (44°F)5°C (41°F)6°C (42°F)8°C (46°F)9°C (48°F)6°C (43°F)5°C (41°F)8°C (46°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity50%57%60%55%41%48%48%55%
Barometric pressure1006 hPa1008 hPa1011 hPa1015 hPa1015 hPa1016 hPa1018 hPa1020 hPa
Cloud cover0%0%0%0%0%0%0%42%
Heat index11°C (51°F)9°C (49°F)9°C (47°F)9°C (49°F)9°C (48°F)9°C (47°F)8°C (46°F)11°C (51°F)
Dew point1°C (34°F)1°C (35°F)1°C (34°F)1°C (33°F)-4°C (25°F)-2°C (28°F)-3°C (27°F)2°C (35°F)
Wind
Speed49km/h (30mph)38km/h (24mph)17km/h (11mph)9km/h (5mph)4km/h (2mph)15km/h (9mph)14km/h (9mph)21km/h (13mph)
Gusts64km/h (40mph)49km/h (30mph)25km/h (15mph)11km/h (7mph)7km/h (4mph)31km/h (19mph)29km/h (18mph)30km/h (19mph)
Direction 265°
W
269°
W
279°
W
266°
W
210°
SSW
110°
ESE
94°
E
68°
ENE
Wind chill7°C (44°F)5°C (41°F)6°C (42°F)8°C (46°F)9°C (48°F)6°C (43°F)5°C (41°F)8°C (46°F)
Waves
Height2.3m (7.6ft)2.0m (6.7ft)1.4m (4.5ft)0.9m (3.1ft)0.7m (2.4ft)0.6m (2.0ft)0.6m (1.9ft)0.6m (2.0ft)
Direction 165°
SSE
169°
SSE
173°
S
173°
S
164°
SSE
156°
SSE
146°
SSE
139°
SE
Period10.3 sec.10.4 sec.10.2 sec.10.3 sec.10.3 sec.9.1 sec.8.9 sec.9.1 sec.
Significant height2.1m (6.9ft)2.2m (7.2ft)1.3m (4.3ft)0.8m (2.6ft)0.5m (1.6ft)0.2m (0.7ft)0.4m (1.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:44 and will set at 16:33 on the beach(es) of Izu. The outside temperature will be a high of 50°F t and a low of 43°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 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (50°F)10°C (49°F)9°C (48°F)9°C (48°F)9°C (49°F)8°C (46°F)7°C (44°F)10°C (50°F)
Perceived temperature8°C (47°F)8°C (46°F)7°C (44°F)7°C (45°F)9°C (48°F)7°C (44°F)6°C (43°F)10°C (50°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity55%58%62%60%58%58%62%63%
Barometric pressure1020 hPa1020 hPa1021 hPa1021 hPa1018 hPa1018 hPa1018 hPa1018 hPa
Cloud cover23%27%15%35%11%0%0%0%
Heat index10°C (50°F)10°C (49°F)9°C (48°F)9°C (48°F)9°C (49°F)8°C (46°F)7°C (44°F)10°C (50°F)
Dew point2°C (35°F)2°C (35°F)2°C (36°F)2°C (35°F)1°C (35°F)0°C (32°F)-0°C (32°F)3°C (38°F)
Wind
Speed15km/h (9mph)13km/h (8mph)11km/h (7mph)10km/h (6mph)4km/h (3mph)7km/h (4mph)4km/h (3mph)6km/h (4mph)
Gusts22km/h (13mph)18km/h (11mph)16km/h (10mph)14km/h (8mph)6km/h (4mph)14km/h (9mph)9km/h (6mph)9km/h (6mph)
Direction 54°
NE
32°
NNE
46°
NE
49°
NE
79°
ENE
131°
SE
71°
ENE
270°
W
Wind chill8°C (47°F)8°C (46°F)7°C (44°F)7°C (45°F)9°C (48°F)7°C (44°F)6°C (43°F)10°C (50°F)
Waves
Height0.6m (2.1ft)0.6m (1.9ft)0.5m (1.8ft)0.5m (1.6ft)0.5m (1.5ft)0.4m (1.4ft)0.4m (1.4ft)0.5m (1.6ft)
Direction 135°
SE
133°
SE
137°
SE
136°
SE
134°
SE
132°
SE
131°
SE
138°
SE
Period8.9 sec.8.7 sec.8.6 sec.8.5 sec.8.4 sec.8.3 sec.8.3 sec.8.2 sec.
Significant height0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:45 and will set at 16:34 on the beach(es) of Izu. The outside temperature will be a high of 52°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 10.6mph km/h (with gusts up to 13.1mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (50°F)9°C (49°F)9°C (49°F)10°C (49°F)10°C (50°F)11°C (51°F)10°C (50°F)11°C (52°F)
Perceived temperature9°C (47°F)8°C (47°F)7°C (45°F)7°C (45°F)8°C (47°F)10°C (50°F)9°C (48°F)9°C (49°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity64%67%67%62%57%54%58%63%
Barometric pressure1017 hPa1018 hPa1019 hPa1021 hPa1019 hPa1018 hPa1019 hPa1020 hPa
Cloud cover0%10%10%24%17%82%52%56%
Heat index10°C (50°F)9°C (49°F)9°C (49°F)10°C (49°F)10°C (50°F)11°C (51°F)10°C (50°F)11°C (52°F)
Dew point3°C (38°F)4°C (38°F)4°C (38°F)3°C (37°F)2°C (35°F)2°C (35°F)2°C (36°F)4°C (40°F)
Wind
Speed10km/h (6mph)9km/h (6mph)14km/h (9mph)17km/h (11mph)10km/h (6mph)7km/h (4mph)9km/h (5mph)13km/h (8mph)
Gusts15km/h (9mph)14km/h (9mph)21km/h (13mph)21km/h (13mph)14km/h (9mph)10km/h (6mph)14km/h (9mph)18km/h (11mph)
Direction 275°
W
311°
NW
31°
NNE
35°
NE
38°
NE
59°
ENE
54°
NE
24°
NNE
Wind chill9°C (47°F)8°C (47°F)7°C (45°F)7°C (45°F)8°C (47°F)10°C (50°F)9°C (48°F)9°C (49°F)
Waves
Height0.5m (1.6ft)0.6m (1.8ft)0.5m (1.8ft)0.5m (1.6ft)0.5m (1.7ft)0.5m (1.8ft)0.5m (1.8ft)0.5m (1.5ft)
Direction 135°
SE
133°
SE
150°
SSE
146°
SSE
151°
SSE
218°
SW
217°
SW
119°
ESE
Period4.2 sec.4.8 sec.4.8 sec.4.7 sec.4.9 sec.4.9 sec.4.4 sec.4.4 sec.
Significant height0.4m (1.3ft)0.6m (2ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.6m (2ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:46 and will set at 16:34 on the beach(es) of Izu. The outside temperature will be a high of 52°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 19.9mph km/h (with gusts up to 23.6mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (51°F)10°C (50°F)10°C (49°F)9°C (49°F)10°C (50°F)11°C (51°F)10°C (50°F)10°C (51°F)
Perceived temperature8°C (47°F)7°C (45°F)6°C (44°F)6°C (42°F)7°C (45°F)8°C (46°F)8°C (46°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity68%69%67%64%56%52%53%56%
Barometric pressure1019 hPa1019 hPa1020 hPa1023 hPa1022 hPa1023 hPa1026 hPa1027 hPa
Cloud cover26%100%100%23%13%20%17%6%
Heat index11°C (51°F)10°C (50°F)10°C (49°F)9°C (49°F)10°C (50°F)11°C (51°F)10°C (50°F)10°C (51°F)
Dew point5°C (41°F)5°C (40°F)4°C (39°F)3°C (37°F)2°C (35°F)1°C (34°F)1°C (33°F)2°C (36°F)
Wind
Speed19km/h (12mph)24km/h (15mph)24km/h (15mph)32km/h (20mph)26km/h (16mph)21km/h (13mph)17km/h (11mph)15km/h (9mph)
Gusts26km/h (16mph)30km/h (19mph)31km/h (19mph)38km/h (24mph)35km/h (21mph)30km/h (19mph)29km/h (18mph)23km/h (14mph)
Direction 25°
NNE
37°
NE
38°
NE
33°
NNE
38°
NE
45°
NE
45°
NE
59°
ENE
Wind chill8°C (47°F)7°C (45°F)6°C (44°F)6°C (42°F)7°C (45°F)8°C (46°F)8°C (46°F)8°C (47°F)
Waves
Height0.5m (1.7ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (2.9ft)0.8m (2.8ft)0.8m (2.6ft)0.8m (2.5ft)
Direction 117°
ESE
33°
NNE
37°
NE
37°
NE
39°
NE
42°
NE
47°
NE
52°
NE
Period10.0 sec.9.9 sec.9.9 sec.9.7 sec.9.9 sec.9.8 sec.9.8 sec.9.8 sec.
Significant height0.8m (2.6ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 06:46 and will set at 16:35 on the beach(es) of Izu. The outside temperature will be a high of 54°F t and a low of 47°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 14.3mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (50°F)10°C (49°F)9°C (48°F)10°C (49°F)8°C (46°F)10°C (51°F)11°C (51°F)12°C (53°F)
Perceived temperature8°C (46°F)7°C (45°F)6°C (43°F)7°C (45°F)6°C (43°F)10°C (50°F)11°C (52°F)12°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity61%64%65%67%63%62%64%64%
Barometric pressure1028 hPa1028 hPa1030 hPa1031 hPa1030 hPa1029 hPa1030 hPa1031 hPa
Cloud cover33%59%24%2%0%56%85%65%
Heat index10°C (50°F)10°C (49°F)9°C (48°F)10°C (49°F)8°C (46°F)10°C (51°F)11°C (51°F)12°C (53°F)
Dew point3°C (37°F)3°C (38°F)3°C (37°F)4°C (38°F)1°C (35°F)3°C (38°F)4°C (40°F)5°C (41°F)
Wind
Speed14km/h (9mph)17km/h (10mph)16km/h (10mph)18km/h (11mph)10km/h (6mph)6km/h (4mph)3km/h (2mph)1km/h (1mph)
Gusts20km/h (13mph)23km/h (14mph)23km/h (14mph)22km/h (14mph)19km/h (12mph)8km/h (5mph)5km/h (3mph)2km/h (1mph)
Direction 53°
NE
34°
NE
25°
NNE
23°
NNE
41°
NE
28°
NNE
288°
WNW
359°
N
Wind chill8°C (46°F)7°C (45°F)6°C (43°F)7°C (45°F)6°C (43°F)10°C (50°F)11°C (52°F)12°C (53°F)
Waves
Height0.7m (2.5ft)0.7m (2.3ft)0.6m (1.9ft)0.5m (1.6ft)0.4m (1.4ft)0.4m (1.3ft)0.4m (1.2ft)0.4m (1.2ft)
Direction 58°
ENE
103°
ESE
113°
ESE
118°
ESE
124°
ESE
124°
SE
124°
ESE
124°
ESE
Period9.2 sec.9.4 sec.8.4 sec.7.2 sec.5.8 sec.5.6 sec.5.4 sec.5.2 sec.
Significant height0.8m (2.6ft)0.9m (3ft)0.7m (2.3ft)0.6m (2ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.5m (1.6ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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