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
Friday 5 December 202545°F to 52°Fnot recommended
Saturday 6 December 202545°F to 52°Frecommended
Sunday 7 December 202547°F to 54°Frecommended
Monday 8 December 202552°F to 63°Frecommended
Tuesday 9 December 202550°F to 54°Fdiscouraged
Wednesday 10 December 202547°F to 50°Fdiscouraged
Thursday 11 December 202547°F to 54°Frecommended

Sea Weather: Your daily and hourly sea weather in Izu

Sea weather on Friday 5 December 2025

On Friday 5 December 2025, the sun will rise at 06:36 and will set at 16:31 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 26.7mph km/h (with gusts up to 31.1mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (45°F)8°C (46°F)8°C (46°F)9°C (48°F)9°C (48°F)10°C (49°F)10°C (50°F)10°C (50°F)
Perceived temperature4°C (39°F)3°C (37°F)3°C (38°F)5°C (40°F)4°C (40°F)5°C (42°F)7°C (45°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity61%65%65%60%47%52%52%49%
Barometric pressure1015 hPa1015 hPa1015 hPa1015 hPa1014 hPa1014 hPa1017 hPa1020 hPa
Cloud cover2%0%0%0%0%6%21%0%
Heat index7°C (45°F)8°C (46°F)8°C (46°F)9°C (48°F)9°C (48°F)10°C (49°F)10°C (50°F)10°C (50°F)
Dew point0°C (32°F)1°C (35°F)2°C (35°F)2°C (35°F)-2°C (29°F)0°C (32°F)0°C (33°F)-0°C (32°F)
Wind
Speed20km/h (13mph)38km/h (23mph)39km/h (24mph)41km/h (25mph)43km/h (27mph)43km/h (27mph)20km/h (13mph)27km/h (17mph)
Gusts28km/h (17mph)46km/h (29mph)47km/h (29mph)47km/h (29mph)50km/h (31mph)46km/h (29mph)34km/h (21mph)37km/h (23mph)
Direction 254°
WSW
258°
WSW
257°
WSW
261°
W
268°
W
267°
W
24°
NNE
35°
NE
Wind chill4°C (39°F)3°C (37°F)3°C (38°F)5°C (40°F)4°C (40°F)5°C (42°F)7°C (45°F)7°C (44°F)
Waves
Height0.6m (1.9ft)1.0m (3.4ft)1.1m (3.5ft)1.0m (3.4ft)1.0m (3.2ft)1.1m (3.5ft)0.6m (1.9ft)0.5m (1.7ft)
Direction 136°
SE
231°
SW
230°
SW
232°
SW
234°
SW
236°
SW
119°
ESE
119°
ESE
Period9.1 sec.9.1 sec.9.3 sec.9.7 sec.10.6 sec.10.3 sec.4.7 sec.9.9 sec.
Significant height0.9m (3ft)1.4m (4.6ft)1.2m (3.9ft)1.3m (4.3ft)1.2m (3.9ft)1.2m (3.9ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)

Sea weather on Saturday 6 December 2025

On Saturday 6 December 2025, the sun will rise at 06:37 and will set at 16:31 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! The sea will be generally calm, with a wind speed of up to 9.9mph km/h (with gusts up to 15.5mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (49°F)9°C (49°F)9°C (48°F)10°C (50°F)10°C (50°F)11°C (51°F)7°C (45°F)11°C (52°F)
Perceived temperature7°C (45°F)7°C (45°F)7°C (45°F)8°C (47°F)9°C (48°F)11°C (51°F)6°C (43°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity50%52%58%58%61%62%65%69%
Barometric pressure1021 hPa1022 hPa1023 hPa1025 hPa1023 hPa1023 hPa1023 hPa1022 hPa
Cloud cover0%0%0%19%42%29%0%0%
Heat index9°C (49°F)9°C (49°F)9°C (48°F)10°C (50°F)10°C (50°F)11°C (51°F)7°C (45°F)11°C (52°F)
Dew point-1°C (31°F)0°C (32°F)1°C (34°F)2°C (36°F)3°C (37°F)4°C (38°F)1°C (34°F)6°C (42°F)
Wind
Speed15km/h (10mph)12km/h (8mph)13km/h (8mph)13km/h (8mph)10km/h (6mph)5km/h (3mph)7km/h (4mph)16km/h (10mph)
Gusts22km/h (14mph)18km/h (11mph)19km/h (12mph)16km/h (10mph)13km/h (8mph)7km/h (4mph)15km/h (9mph)25km/h (15mph)
Direction 30°
NNE
20°
NNE
20°
NNE
31°
NNE
27°
NNE
96°
E
260°
W
273°
W
Wind chill7°C (45°F)7°C (45°F)7°C (45°F)8°C (47°F)9°C (48°F)11°C (51°F)6°C (43°F)9°C (48°F)
Waves
Height0.5m (1.5ft)0.4m (1.3ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.2ft)0.3m (1.1ft)0.3m (1.1ft)0.4m (1.3ft)
Direction 121°
ESE
129°
SE
127°
SE
125°
SE
125°
SE
125°
SE
126°
SE
126°
SE
Period9.8 sec.9.6 sec.9.4 sec.9.0 sec.9.0 sec.8.9 sec.8.8 sec.8.7 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.6m (2ft)
Sea water temperature
Water temperature20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)

Sea weather on Sunday 7 December 2025

On Sunday 7 December 2025, the sun will rise at 06:38 and will set at 16:32 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 8.7mph 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 temperature11°C (51°F)10°C (49°F)9°C (48°F)11°C (51°F)10°C (49°F)10°C (49°F)8°C (47°F)12°C (54°F)
Perceived temperature9°C (48°F)8°C (46°F)8°C (46°F)10°C (49°F)9°C (47°F)10°C (49°F)8°C (47°F)12°C (54°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%62%60%53%50%42%46%45%
Barometric pressure1021 hPa1020 hPa1019 hPa1020 hPa1018 hPa1018 hPa1019 hPa1019 hPa
Cloud cover0%0%0%0%0%0%0%0%
Heat index11°C (51°F)10°C (49°F)9°C (48°F)11°C (51°F)10°C (49°F)10°C (49°F)8°C (47°F)12°C (54°F)
Dew point6°C (42°F)3°C (37°F)2°C (35°F)1°C (35°F)-0°C (32°F)-3°C (27°F)-3°C (27°F)1°C (33°F)
Wind
Speed14km/h (9mph)12km/h (8mph)8km/h (5mph)9km/h (5mph)9km/h (5mph)5km/h (3mph)3km/h (2mph)2km/h (1mph)
Gusts22km/h (14mph)19km/h (12mph)13km/h (8mph)11km/h (7mph)16km/h (10mph)10km/h (6mph)7km/h (4mph)4km/h (2mph)
Direction 248°
WSW
252°
WSW
286°
WNW
346°
NNW
27°
NNE
64°
ENE
91°
E
147°
SSE
Wind chill9°C (48°F)8°C (46°F)8°C (46°F)10°C (49°F)9°C (47°F)10°C (49°F)8°C (47°F)12°C (54°F)
Waves
Height0.5m (1.6ft)0.6m (2.0ft)0.6m (2.1ft)0.5m (1.7ft)0.4m (1.4ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.2ft)
Direction 126°
SE
127°
SE
125°
SE
126°
SE
125°
SE
123°
ESE
122°
ESE
122°
ESE
Period8.7 sec.8.7 sec.8.7 sec.9.0 sec.9.6 sec.9.3 sec.9.1 sec.9.2 sec.
Significant height0.8m (2.6ft)0.9m (3ft)0.8m (2.6ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)

Sea weather on Monday 8 December 2025

On Monday 8 December 2025, the sun will rise at 06:39 and will set at 16:32 on the beach(es) of Izu. The outside temperature will be a high of 63°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 8.7mph km/h (with gusts up to 16.2mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (53°F)11°C (53°F)11°C (51°F)12°C (54°F)13°C (56°F)17°C (62°F)12°C (53°F)13°C (56°F)
Perceived temperature12°C (53°F)11°C (51°F)10°C (49°F)11°C (53°F)12°C (53°F)17°C (62°F)10°C (51°F)13°C (55°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity49%57%63%58%43%44%55%54%
Barometric pressure1018 hPa1017 hPa1018 hPa1018 hPa1015 hPa1014 hPa1015 hPa1016 hPa
Cloud cover3%0%0%0%0%96%2%47%
Heat index12°C (53°F)11°C (53°F)11°C (51°F)12°C (54°F)13°C (56°F)17°C (62°F)12°C (53°F)13°C (56°F)
Dew point1°C (35°F)3°C (38°F)4°C (39°F)4°C (40°F)1°C (34°F)4°C (40°F)3°C (37°F)4°C (40°F)
Wind
Speed5km/h (3mph)9km/h (5mph)10km/h (6mph)8km/h (5mph)14km/h (9mph)12km/h (7mph)10km/h (6mph)8km/h (5mph)
Gusts9km/h (5mph)14km/h (9mph)16km/h (10mph)11km/h (7mph)26km/h (16mph)18km/h (11mph)22km/h (14mph)13km/h (8mph)
Direction 242°
WSW
277°
W
283°
WNW
277°
W
292°
WNW
257°
WSW
257°
WSW
348°
NNW
Wind chill12°C (53°F)11°C (51°F)10°C (49°F)11°C (53°F)12°C (53°F)17°C (62°F)10°C (51°F)13°C (55°F)
Waves
Height0.4m (1.2ft)0.4m (1.2ft)0.4m (1.3ft)0.5m (1.6ft)0.6m (2.1ft)0.7m (2.2ft)0.7m (2.4ft)0.6m (2.1ft)
Direction 122°
ESE
123°
ESE
126°
SE
128°
SE
130°
SE
131°
SE
134°
SE
135°
SE
Period9.1 sec.8.6 sec.8.7 sec.8.3 sec.8.7 sec.9.1 sec.9.6 sec.5.2 sec.
Significant height0.5m (1.6ft)0.3m (1ft)0.4m (1.3ft)0.5m (1.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)

Sea weather on Tuesday 9 December 2025

On Tuesday 9 December 2025, the sun will rise at 06:39 and will set at 16:32 on the beach(es) of Izu. The outside temperature will be a high of 54°F t and a low of 50°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 13.7mph km/h (with gusts up to 19.3mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (53°F)11°C (52°F)11°C (52°F)10°C (51°F)11°C (52°F)11°C (51°F)11°C (52°F)
Perceived temperature10°C (51°F)9°C (49°F)10°C (50°F)9°C (48°F)8°C (47°F)10°C (50°F)10°C (50°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity59%60%58%61%54%49%49%51%
Barometric pressure1017 hPa1018 hPa1019 hPa1021 hPa1020 hPa1021 hPa1023 hPa1023 hPa
Cloud cover3%0%0%0%4%12%18%39%
Heat index12°C (54°F)12°C (53°F)11°C (52°F)11°C (52°F)10°C (51°F)11°C (52°F)11°C (51°F)11°C (52°F)
Dew point5°C (40°F)4°C (39°F)3°C (38°F)4°C (39°F)1°C (35°F)1°C (34°F)0°C (33°F)2°C (35°F)
Wind
Speed20km/h (13mph)22km/h (14mph)10km/h (6mph)22km/h (14mph)17km/h (10mph)10km/h (6mph)6km/h (4mph)21km/h (13mph)
Gusts30km/h (19mph)31km/h (19mph)15km/h (9mph)27km/h (17mph)25km/h (16mph)16km/h (10mph)11km/h (7mph)31km/h (19mph)
Direction 35°
NE
31°
NNE
57°
ENE
40°
NE
38°
NE
56°
NE
56°
ENE
37°
NE
Wind chill10°C (51°F)9°C (49°F)10°C (50°F)9°C (48°F)8°C (47°F)10°C (50°F)10°C (50°F)9°C (48°F)
Waves
Height0.6m (1.8ft)0.5m (1.7ft)0.6m (1.9ft)0.6m (2.0ft)0.7m (2.4ft)0.7m (2.2ft)0.8m (2.6ft)0.9m (3.0ft)
Direction 132°
SE
130°
SE
127°
SE
125°
SE
123°
ESE
121°
ESE
121°
ESE
120°
ESE
Period9.3 sec.8.6 sec.9.0 sec.8.9 sec.9.0 sec.9.3 sec.9.3 sec.9.1 sec.
Significant height0.4m (1.3ft)0.6m (2ft)0.7m (2.3ft)0.8m (2.6ft)1.0m (3.3ft)0.9m (3ft)1.2m (3.9ft)1.3m (4.3ft)
Sea water temperature
Water temperature20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)

Sea weather on Wednesday 10 December 2025

On Wednesday 10 December 2025, the sun will rise at 06:40 and will set at 16:32 on the beach(es) of Izu. The outside temperature will be a high of 50°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 16.2mph km/h (with gusts up to 21.8mph). Wave height will be up to 2.6ft 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)10°C (49°F)10°C (50°F)8°C (47°F)10°C (51°F)
Perceived temperature7°C (45°F)7°C (44°F)6°C (42°F)6°C (43°F)8°C (47°F)10°C (50°F)9°C (48°F)10°C (49°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity56%57%60%58%54%54%61%61%
Barometric pressure1024 hPa1025 hPa1026 hPa1028 hPa1026 hPa1025 hPa1025 hPa1025 hPa
Cloud cover31%18%7%1%26%36%3%5%
Heat index10°C (50°F)10°C (49°F)9°C (48°F)9°C (48°F)10°C (49°F)10°C (50°F)8°C (47°F)10°C (51°F)
Dew point2°C (35°F)2°C (35°F)1°C (34°F)1°C (35°F)1°C (33°F)1°C (35°F)1°C (34°F)3°C (38°F)
Wind
Speed26km/h (16mph)24km/h (15mph)20km/h (12mph)19km/h (12mph)10km/h (6mph)5km/h (3mph)3km/h (2mph)6km/h (4mph)
Gusts35km/h (22mph)32km/h (20mph)27km/h (17mph)23km/h (14mph)13km/h (8mph)7km/h (5mph)7km/h (4mph)10km/h (7mph)
Direction 41°
NE
30°
NNE
31°
NNE
33°
NNE
30°
NNE
69°
ENE
178°
S
263°
W
Wind chill7°C (45°F)7°C (44°F)6°C (42°F)6°C (43°F)8°C (47°F)10°C (50°F)9°C (48°F)10°C (49°F)
Waves
Height0.8m (2.7ft)0.7m (2.3ft)0.7m (2.2ft)0.6m (2.1ft)0.6m (2.0ft)0.6m (1.9ft)0.5m (1.8ft)0.5m (1.8ft)
Direction 119°
ESE
118°
ESE
117°
ESE
117°
ESE
116°
ESE
115°
ESE
115°
ESE
118°
ESE
Period9.0 sec.8.9 sec.9.1 sec.9.8 sec.9.9 sec.10.0 sec.10.0 sec.10.5 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)

Sea weather on Thursday 11 December 2025

On Thursday 11 December 2025, the sun will rise at 06:41 and will set at 16:32 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 6.2mph km/h (with gusts up to 9.3mph). 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 (50°F)10°C (50°F)11°C (51°F)12°C (53°F)11°C (53°F)8°C (46°F)12°C (53°F)
Perceived temperature9°C (48°F)9°C (48°F)9°C (48°F)9°C (49°F)11°C (52°F)11°C (52°F)8°C (46°F)11°C (52°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity66%71%65%61%50%48%48%49%
Barometric pressure1023 hPa1022 hPa1022 hPa1022 hPa1019 hPa1019 hPa1020 hPa1020 hPa
Cloud cover31%45%100%100%100%10%0%0%
Heat index10°C (50°F)10°C (50°F)10°C (50°F)11°C (51°F)12°C (53°F)11°C (53°F)8°C (46°F)12°C (53°F)
Dew point4°C (39°F)5°C (41°F)4°C (39°F)3°C (38°F)2°C (36°F)1°C (34°F)-2°C (28°F)1°C (34°F)
Wind
Speed10km/h (6mph)10km/h (6mph)8km/h (5mph)9km/h (6mph)8km/h (5mph)6km/h (4mph)1km/h (1mph)6km/h (4mph)
Gusts15km/h (9mph)15km/h (9mph)12km/h (8mph)12km/h (8mph)10km/h (6mph)10km/h (6mph)3km/h (2mph)9km/h (6mph)
Direction 271°
W
276°
W
332°
NNW
13°
NNE
26°
NNE
56°
ENE
336°
NNW
351°
N
Wind chill9°C (48°F)9°C (48°F)9°C (48°F)9°C (49°F)11°C (52°F)11°C (52°F)8°C (46°F)11°C (52°F)
Waves
Height0.5m (1.8ft)0.5m (1.8ft)0.5m (1.8ft)0.6m (1.9ft)0.6m (2.0ft)0.6m (2.1ft)0.7m (2.2ft)0.7m (2.3ft)
Direction 118°
ESE
114°
ESE
114°
ESE
114°
ESE
114°
ESE
114°
ESE
111°
ESE
108°
ESE
Period10.5 sec.10.3 sec.10.4 sec.10.2 sec.10.0 sec.9.9 sec.9.6 sec.10.6 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.5m (1.6ft)0.8m (2.6ft)0.9m (3ft)
Sea water temperature
Water temperature20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)20°C (69°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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