Sea weather in Otaru in Japan All the beach weather in Otaru

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

Discover the best moment to go to the beach in Otaru in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Otaru. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Saturday 18 July 202667°F to 74°Fdiscouraged
Sunday 19 July 202667°F to 70°Fdiscouraged
Monday 20 July 202665°F to 70°Frecommended
Tuesday 21 July 202667°F to 74°Frecommended
Wednesday 22 July 202663°F to 72°Frecommended
Thursday 23 July 202667°F to 72°Frecommended
Friday 24 July 202667°F to 74°Frecommended

Sea Weather: Your daily and hourly sea weather in Otaru

Sea weather on Saturday 18 July 2026

On Saturday 18 July 2026, the sun will rise at 04:12 and will set at 19:12 on the beach(es) of Otaru. The outside temperature will be a high of 74°F t and a low of 67°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 13.1mph km/h (with gusts up to 23.6mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (70°F)21°C (69°F)21°C (70°F)23°C (73°F)21°C (71°F)21°C (69°F)20°C (67°F)20°C (67°F)
Perceived temperature21°C (70°F)21°C (69°F)21°C (70°F)25°C (77°F)21°C (71°F)21°C (69°F)20°C (67°F)20°C (67°F)
Precipitation0in0in0in0in0in0in0in0.1in
Humidity90%91%90%80%88%92%96%94%
Barometric pressure1007 hPa1007 hPa1008 hPa1007 hPa1008 hPa1008 hPa1006 hPa1005 hPa
Cloud cover25%34%32%69%56%80%77%100%
Heat index24°C (76°F)21°C (69°F)21°C (70°F)25°C (77°F)24°C (76°F)21°C (69°F)20°C (67°F)20°C (67°F)
Dew point20°C (67°F)19°C (67°F)19°C (67°F)19°C (66°F)19°C (67°F)19°C (67°F)19°C (66°F)19°C (65°F)
Wind
Speed13km/h (8mph)17km/h (10mph)13km/h (8mph)18km/h (11mph)12km/h (8mph)12km/h (7mph)21km/h (13mph)21km/h (13mph)
Gusts27km/h (17mph)31km/h (19mph)22km/h (14mph)30km/h (19mph)23km/h (14mph)22km/h (13mph)38km/h (23mph)35km/h (22mph)
Direction 137°
SE
140°
SE
143°
SE
133°
SE
150°
SSE
124°
ESE
114°
ESE
129°
SE
Wind chill21°C (70°F)21°C (69°F)21°C (70°F)23°C (73°F)21°C (71°F)21°C (69°F)20°C (67°F)20°C (67°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.1ft)0.4m (1.3ft)0.3m (1.0ft)0.3m (0.9ft)0.3m (1.0ft)
Direction 111°
ESE
119°
ESE
98°
E
112°
ESE
129°
SE
131°
SE
136°
SE
133°
SE
Period2.8 sec.4.3 sec.4.2 sec.4.1 sec.3.6 sec.3.4 sec.3.4 sec.3.4 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.3m (1ft)0.4m (1.3ft)0.5m (1.6ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 04:13 and will set at 19:11 on the beach(es) of Otaru. The outside temperature will be a high of 70°F t and a low of 67°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 14.3mph km/h (with gusts up to 22.4mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)20°C (67°F)20°C (67°F)21°C (69°F)21°C (70°F)20°C (68°F)20°C (67°F)20°C (67°F)
Perceived temperature19°C (67°F)20°C (67°F)20°C (67°F)21°C (69°F)21°C (70°F)20°C (68°F)20°C (67°F)20°C (67°F)
Precipitation0.1in0in0in0in0in0in0in0in
Humidity96%93%92%91%91%95%97%97%
Barometric pressure1004 hPa1003 hPa1004 hPa1004 hPa1004 hPa1004 hPa1005 hPa1006 hPa
Cloud cover100%92%100%100%100%100%100%100%
Heat index19°C (67°F)20°C (67°F)20°C (67°F)21°C (69°F)21°C (70°F)20°C (68°F)20°C (67°F)20°C (67°F)
Dew point18°C (65°F)18°C (65°F)18°C (65°F)19°C (66°F)19°C (67°F)19°C (67°F)19°C (66°F)19°C (66°F)
Wind
Speed23km/h (14mph)13km/h (8mph)6km/h (4mph)5km/h (3mph)5km/h (3mph)3km/h (2mph)3km/h (2mph)2km/h (1mph)
Gusts36km/h (23mph)24km/h (15mph)10km/h (6mph)7km/h (4mph)9km/h (5mph)4km/h (3mph)4km/h (3mph)3km/h (2mph)
Direction 120°
ESE
149°
SSE
159°
SSE
86°
E
104°
ESE
240°
WSW
277°
W
334°
NNW
Wind chill19°C (67°F)20°C (67°F)20°C (67°F)21°C (69°F)21°C (70°F)20°C (68°F)20°C (67°F)20°C (67°F)
Waves
Height0.4m (1.5ft)0.6m (2.1ft)0.6m (2.0ft)0.5m (1.8ft)0.6m (1.9ft)0.5m (1.8ft)0.4m (1.4ft)0.3m (0.9ft)
Direction 127°
SE
114°
ESE
122°
ESE
125°
SE
128°
SE
131°
SE
132°
SE
130°
SE
Period3.4 sec.3.4 sec.3.4 sec.4.8 sec.4.8 sec.4.3 sec.4.3 sec.3.1 sec.
Significant height0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.5m (1.6ft)0.4m (1.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 04:14 and will set at 19:11 on the beach(es) of Otaru. The outside temperature will be a high of 70°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 5.6mph km/h (with gusts up to 8.1mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)19°C (66°F)19°C (66°F)20°C (67°F)19°C (67°F)21°C (69°F)19°C (66°F)19°C (66°F)
Perceived temperature19°C (67°F)19°C (66°F)19°C (66°F)20°C (67°F)19°C (67°F)21°C (69°F)19°C (66°F)19°C (66°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity96%94%94%93%88%80%89%87%
Barometric pressure1006 hPa1006 hPa1007 hPa1008 hPa1007 hPa1007 hPa1007 hPa1008 hPa
Cloud cover100%99%100%66%38%46%38%44%
Heat index19°C (67°F)19°C (66°F)19°C (66°F)20°C (67°F)19°C (67°F)21°C (69°F)19°C (66°F)19°C (66°F)
Dew point19°C (66°F)18°C (64°F)18°C (65°F)18°C (65°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (62°F)
Wind
Speed6km/h (4mph)8km/h (5mph)7km/h (4mph)9km/h (5mph)8km/h (5mph)9km/h (6mph)5km/h (3mph)3km/h (2mph)
Gusts10km/h (6mph)12km/h (7mph)11km/h (7mph)13km/h (8mph)12km/h (7mph)13km/h (8mph)8km/h (5mph)5km/h (3mph)
Direction 283°
WNW
259°
W
279°
W
313°
NW
321°
NW
324°
NW
269°
W
272°
W
Wind chill19°C (67°F)19°C (66°F)19°C (66°F)20°C (67°F)19°C (67°F)21°C (69°F)19°C (66°F)19°C (66°F)
Waves
Height0.2m (0.6ft)0.1m (0.4ft)0.1m (0.4ft)0.1m (0.4ft)0.3m (1.0ft)0.4m (1.3ft)0.4m (1.2ft)0.3m (1.0ft)
Direction 121°
ESE
356°
N
344°
NNW
321°
NW
313°
NW
317°
NW
322°
NW
326°
NW
Period2.8 sec.2.4 sec.3.5 sec.3.3 sec.3.9 sec.3.9 sec.3.8 sec.3.8 sec.
Significant height0.2m (0.7ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 04:14 and will set at 19:10 on the beach(es) of Otaru. The outside temperature will be a high of 74°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 5mph km/h (with gusts up to 7.5mph). Wave height will be up to 0.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)19°C (67°F)20°C (68°F)22°C (71°F)22°C (72°F)22°C (71°F)21°C (69°F)19°C (67°F)
Perceived temperature19°C (67°F)19°C (67°F)20°C (68°F)22°C (71°F)25°C (76°F)22°C (71°F)21°C (69°F)19°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%84%85%76%76%79%84%90%
Barometric pressure1007 hPa1006 hPa1006 hPa1006 hPa1006 hPa1006 hPa1007 hPa1007 hPa
Cloud cover49%56%28%31%66%64%65%57%
Heat index19°C (67°F)19°C (67°F)20°C (68°F)24°C (76°F)25°C (76°F)24°C (76°F)21°C (69°F)19°C (67°F)
Dew point17°C (62°F)17°C (62°F)17°C (63°F)17°C (63°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)
Wind
Speed1km/h (1mph)3km/h (2mph)2km/h (1mph)4km/h (2mph)4km/h (3mph)8km/h (5mph)8km/h (5mph)4km/h (2mph)
Gusts2km/h (1mph)5km/h (3mph)3km/h (2mph)5km/h (3mph)6km/h (4mph)12km/h (7mph)12km/h (7mph)7km/h (4mph)
Direction 45°
NE
141°
SE
65°
ENE
12°
NNE
14°
NNE
345°
NNW
316°
NW
277°
W
Wind chill19°C (67°F)19°C (67°F)20°C (68°F)22°C (71°F)22°C (72°F)22°C (71°F)21°C (69°F)19°C (67°F)
Waves
Height0.2m (0.8ft)0.2m (0.6ft)0.2m (0.5ft)0.1m (0.5ft)0.1m (0.4ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)
Direction 326°
NW
326°
NW
327°
NNW
322°
NW
314°
NW
304°
WNW
292°
WNW
293°
WNW
Period3.6 sec.3.5 sec.3.4 sec.3.4 sec.3.3 sec.3.8 sec.4.3 sec.4.1 sec.
Significant height0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.5m (1.6ft)0.3m (1ft)0.2m (0.7ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 04:15 and will set at 19:09 on the beach(es) of Otaru. The outside temperature will be a high of 72°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! The sea will be generally calm, with a wind speed of up to 6.2mph km/h (with gusts up to 9.9mph). Wave height will be up to 0.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)19°C (65°F)19°C (67°F)21°C (71°F)21°C (71°F)21°C (69°F)19°C (66°F)19°C (66°F)
Perceived temperature19°C (67°F)19°C (65°F)19°C (67°F)21°C (71°F)21°C (71°F)21°C (69°F)19°C (66°F)19°C (66°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%90%86%77%74%76%87%89%
Barometric pressure1007 hPa1006 hPa1007 hPa1007 hPa1007 hPa1007 hPa1008 hPa1009 hPa
Cloud cover56%25%26%10%4%3%4%3%
Heat index19°C (67°F)19°C (65°F)19°C (67°F)24°C (76°F)24°C (76°F)21°C (69°F)19°C (66°F)19°C (66°F)
Dew point17°C (63°F)17°C (62°F)17°C (63°F)17°C (63°F)17°C (62°F)16°C (61°F)17°C (62°F)17°C (63°F)
Wind
Speed5km/h (3mph)4km/h (2mph)6km/h (4mph)8km/h (5mph)10km/h (6mph)9km/h (5mph)8km/h (5mph)7km/h (4mph)
Gusts9km/h (6mph)6km/h (4mph)9km/h (6mph)10km/h (6mph)16km/h (10mph)15km/h (10mph)16km/h (10mph)14km/h (9mph)
Direction 262°
W
330°
NNW
287°
WNW
323°
NW
330°
NNW
318°
NW
291°
WNW
245°
WSW
Wind chill19°C (67°F)19°C (65°F)19°C (67°F)21°C (71°F)21°C (71°F)21°C (69°F)19°C (66°F)19°C (66°F)
Waves
Height0.2m (0.6ft)0.1m (0.5ft)0.1m (0.4ft)0.1m (0.4ft)0.1m (0.4ft)0.2m (0.6ft)0.1m (0.5ft)0.1m (0.3ft)
Direction 290°
WNW
292°
WNW
293°
WNW
300°
WNW
299°
WNW
335°
NNW
340°
NNW
313°
NW
Period4.6 sec.4.3 sec.4.1 sec.3.9 sec.3.8 sec.3.8 sec.3.5 sec.2.1 sec.
Significant height0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.4m (1.3ft)0.2m (0.7ft)0.1m (0.3ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 04:16 and will set at 19:08 on the beach(es) of Otaru. The outside temperature will be a high of 72°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 5mph km/h (with gusts up to 7.5mph). Wave height will be up to 1.3ft 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)22°C (71°F)22°C (72°F)22°C (72°F)20°C (69°F)20°C (67°F)
Perceived temperature19°C (66°F)19°C (66°F)20°C (67°F)22°C (71°F)25°C (76°F)25°C (76°F)20°C (69°F)20°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%91%88%80%74%77%89%93%
Barometric pressure1008 hPa1008 hPa1009 hPa1009 hPa1009 hPa1009 hPa1010 hPa1011 hPa
Cloud cover5%12%27%18%70%89%18%26%
Heat index19°C (66°F)19°C (66°F)20°C (67°F)24°C (76°F)25°C (76°F)25°C (76°F)20°C (69°F)20°C (67°F)
Dew point17°C (63°F)17°C (63°F)18°C (64°F)18°C (65°F)18°C (64°F)18°C (65°F)18°C (65°F)18°C (65°F)
Wind
Speed4km/h (2mph)4km/h (2mph)4km/h (2mph)3km/h (2mph)8km/h (5mph)8km/h (5mph)7km/h (4mph)2km/h (1mph)
Gusts7km/h (4mph)7km/h (4mph)6km/h (4mph)5km/h (3mph)12km/h (8mph)11km/h (7mph)12km/h (7mph)4km/h (2mph)
Direction 195°
SSW
189°
S
146°
SE
58°
ENE
356°
N
14°
NNE

N
47°
NE
Wind chill19°C (66°F)19°C (66°F)20°C (67°F)22°C (71°F)22°C (72°F)22°C (72°F)20°C (69°F)20°C (67°F)
Waves
Height0.3m (1.1ft)0.2m (0.5ft)0.1m (0.4ft)0.2m (0.7ft)0.4m (1.2ft)0.1m (0.4ft)0.1m (0.4ft)0.1m (0.4ft)
Direction 311°
NW
312°
NW
309°
NW
301°
WNW
291°
WNW
285°
WNW
282°
WNW
280°
W
Period3.2 sec.2.9 sec.2.9 sec.3.1 sec.3.5 sec.3.8 sec.4.0 sec.4.2 sec.
Significant height0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 04:17 and will set at 19:07 on the beach(es) of Otaru. The outside temperature will be a high of 74°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 5.6mph km/h (with gusts up to 8.1mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (66°F)19°C (66°F)21°C (69°F)22°C (72°F)23°C (73°F)23°C (74°F)22°C (71°F)20°C (69°F)
Perceived temperature19°C (66°F)19°C (66°F)21°C (69°F)25°C (76°F)25°C (77°F)25°C (77°F)22°C (71°F)20°C (69°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity93%91%92%80%77%78%87%92%
Barometric pressure1011 hPa1011 hPa1012 hPa1012 hPa1011 hPa1011 hPa1012 hPa1012 hPa
Cloud cover82%30%18%27%70%51%82%49%
Heat index19°C (66°F)19°C (66°F)21°C (69°F)25°C (76°F)25°C (77°F)25°C (77°F)24°C (76°F)20°C (69°F)
Dew point18°C (64°F)17°C (63°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (67°F)19°C (66°F)
Wind
Speed0km/h (0mph)4km/h (3mph)7km/h (4mph)4km/h (2mph)6km/h (4mph)9km/h (6mph)3km/h (2mph)6km/h (4mph)
Gusts1km/h (0mph)8km/h (5mph)13km/h (8mph)6km/h (3mph)9km/h (5mph)12km/h (8mph)5km/h (3mph)12km/h (7mph)
Direction 34°
NE
161°
SSE
119°
ESE
38°
NE

N
347°
NNW
346°
NNW
121°
ESE
Wind chill19°C (66°F)19°C (66°F)21°C (69°F)22°C (72°F)23°C (73°F)23°C (74°F)22°C (71°F)20°C (69°F)
Waves
Height0.1m (0.5ft)0.1m (0.5ft)0.1m (0.5ft)0.1m (0.4ft)0.1m (0.4ft)0.1m (0.4ft)0.1m (0.4ft)0.4m (1.3ft)
Direction 279°
W
278°
W
277°
W
275°
W
278°
W
277°
W
276°
W
272°
W
Period4.4 sec.5.1 sec.5.1 sec.5.0 sec.4.8 sec.4.6 sec.4.6 sec.4.5 sec.
Significant height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)
Sea water temperature
Water temperature17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)17°C (63°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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