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. | Max wind | Our opinion | Details |
|---|---|---|---|---|
| Sunday 14 December 2025 | 29°F to 34°F | 11.2mph | not recommended | all the sea weather |
| Monday 15 December 2025 | 29°F to 38°F | 23mph | not recommended | all the sea weather |
| Tuesday 16 December 2025 | 22°F to 32°F | 29.8mph | not recommended | all the sea weather |
| Wednesday 17 December 2025 | 22°F to 23°F | 23mph | not recommended | all the sea weather |
| Thursday 18 December 2025 | 23°F to 29°F | 9.3mph | not recommended | all the sea weather |
| Friday 19 December 2025 | 29°F to 40°F | 8.1mph | not recommended | all the sea weather |
| Saturday 20 December 2025 | 38°F to 41°F | 16.2mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Otaru
Sea weather on Sunday 14 December 2025
On Sunday 14 December 2025, the sun will rise at 07:00 and will set at 16:01 on the beach(es) of Otaru. The outside temperature will be a high of 34°F t and a low of 29°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 16.2mph km/h (with gusts up to 21.1mph). Wave height will be up to 3.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | | |  |  |  | |
| Outside temperature | -2°C (29°F) | -1°C (29°F) | -1°C (30°F) | -0°C (32°F) | 1°C (33°F) | -0°C (31°F) | -1°C (31°F) | 0°C (33°F) |
| Perceived temperature | -6°C (21°F) | -5°C (24°F) | -5°C (23°F) | -5°C (23°F) | -5°C (23°F) | -6°C (21°F) | -6°C (21°F) | -4°C (24°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0.1in |
| Humidity | 74% | 67% | 69% | 75% | 84% | 90% | 92% | 98% |
| Barometric pressure | 1020 hPa | 1020 hPa | 1018 hPa | 1015 hPa | 1011 hPa | 1009 hPa | 1006 hPa | 1000 hPa |
| Cloud cover | 80% | 60% | 55% | 90% | 83% | 94% | 100% | 100% |
| Heat index | -2°C (29°F) | -1°C (29°F) | -1°C (30°F) | -0°C (32°F) | 1°C (33°F) | -0°C (31°F) | -1°C (31°F) | 0°C (33°F) |
| Dew point | -6°C (22°F) | -7°C (20°F) | -6°C (21°F) | -4°C (25°F) | -2°C (29°F) | -2°C (29°F) | -2°C (29°F) | 0°C (32°F) |
| Wind | ||||||||
| Speed | 12km/h (8mph) | 9km/h (6mph) | 11km/h (7mph) | 17km/h (11mph) | 26km/h (16mph) | 24km/h (15mph) | 22km/h (14mph) | 18km/h (11mph) |
| Gusts | 20km/h (12mph) | 16km/h (10mph) | 19km/h (12mph) | 24km/h (15mph) | 34km/h (21mph) | 33km/h (20mph) | 33km/h (20mph) | 25km/h (15mph) |
| Direction | 191° SSW | 161° SSE | 135° SE | 119° ESE | 111° ESE | 101° E | 79° E | 29° NNE |
| Wind chill | -6°C (21°F) | -5°C (24°F) | -5°C (23°F) | -5°C (23°F) | -5°C (23°F) | -6°C (21°F) | -6°C (21°F) | -4°C (24°F) |
| Waves | ||||||||
| Height | 0.9m (3.1ft) | 0.8m (2.8ft) | 0.7m (2.4ft) | 0.6m (2.1ft) | 0.6m (2.0ft) | 0.7m (2.2ft) | 0.8m (2.7ft) | 1.0m (3.3ft) |
| Direction | 323° NW | 325° NW | 335° NNW | 327° NNW | 352° N | 356° N | 80° E | 8° N |
| Period | 6.3 sec. | 6.7 sec. | 6.6 sec. | 6.3 sec. | 6.1 sec. | 5.9 sec. | 5.8 sec. | 5.8 sec. |
| Significant height | 1.1m (3.6ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.9m (3ft) | 1.1m (3.6ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) |
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 07:01 and will set at 16:01 on the beach(es) of Otaru. The outside temperature will be a high of 38°F t and a low of 29°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 33.6mph km/h (with gusts up to 42.9mph). Wave height will be up to 12.1ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | |  | |
| Outside temperature | 2°C (35°F) | 2°C (35°F) | 2°C (36°F) | 3°C (37°F) | 1°C (34°F) | -1°C (30°F) | -2°C (29°F) | -1°C (31°F) |
| Perceived temperature | -4°C (25°F) | -5°C (22°F) | -6°C (22°F) | -4°C (25°F) | -7°C (20°F) | -10°C (15°F) | -10°C (14°F) | -8°C (17°F) |
| Precipitation | 0.1in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 90% | 91% | 88% | 80% | 87% | 89% | 70% | 70% |
| Barometric pressure | 997 hPa | 998 hPa | 1001 hPa | 1004 hPa | 1006 hPa | 1010 hPa | 1013 hPa | 1013 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 2°C (35°F) | 2°C (35°F) | 2°C (36°F) | 3°C (37°F) | 1°C (34°F) | -1°C (30°F) | -2°C (29°F) | -1°C (31°F) |
| Dew point | 0°C (32°F) | 1°C (33°F) | 0°C (32°F) | -0°C (31°F) | -1°C (30°F) | -3°C (27°F) | -7°C (20°F) | -6°C (22°F) |
| Wind | ||||||||
| Speed | 26km/h (16mph) | 46km/h (29mph) | 54km/h (34mph) | 45km/h (28mph) | 52km/h (32mph) | 47km/h (29mph) | 41km/h (26mph) | 37km/h (23mph) |
| Gusts | 35km/h (22mph) | 60km/h (37mph) | 69km/h (43mph) | 59km/h (37mph) | 68km/h (42mph) | 62km/h (39mph) | 57km/h (36mph) | 51km/h (31mph) |
| Direction | 14° NNE | 4° N | 353° N | 336° NNW | 318° NW | 310° NW | 300° WNW | 283° WNW |
| Wind chill | -4°C (25°F) | -5°C (22°F) | -6°C (22°F) | -4°C (25°F) | -7°C (20°F) | -10°C (15°F) | -10°C (14°F) | -8°C (17°F) |
| Waves | ||||||||
| Height | 1.5m (4.9ft) | 2.2m (7.2ft) | 3.4m (11.1ft) | 3.7m (12.1ft) | 3.7m (12.2ft) | 3.6m (12.0ft) | 3.2m (10.4ft) | 2.6m (8.5ft) |
| Direction | 1° N | 357° N | 351° N | 346° NNW | 342° NNW | 338° NNW | 339° NNW | 346° NNW |
| Period | 5.4 sec. | 6.6 sec. | 7.8 sec. | 8.5 sec. | 8.7 sec. | 8.8 sec. | 8.9 sec. | 9.0 sec. |
| Significant height | 1.2m (3.9ft) | 1.5m (4.9ft) | 2.4m (7.9ft) | 2.1m (6.9ft) | 2.1m (6.9ft) | 1.9m (6.2ft) | 1.3m (4.3ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 07:01 and will set at 16:01 on the beach(es) of Otaru. The outside temperature will be a high of 32°F t and a low of 22°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 29.8mph km/h (with gusts up to 37.9mph). Wave height will be up to 8.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | -0°C (32°F) | 0°C (32°F) | -1°C (31°F) | -1°C (30°F) | -3°C (27°F) | -4°C (24°F) | -6°C (22°F) | -6°C (21°F) |
| Perceived temperature | -8°C (18°F) | -8°C (18°F) | -8°C (17°F) | -9°C (15°F) | -12°C (11°F) | -14°C (7°F) | -16°C (4°F) | -16°C (3°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 66% | 68% | 70% | 68% | 70% | 74% | 73% | 77% |
| Barometric pressure | 1013 hPa | 1012 hPa | 1013 hPa | 1013 hPa | 1012 hPa | 1013 hPa | 1014 hPa | 1014 hPa |
| Cloud cover | 79% | 94% | 100% | 100% | 94% | 100% | 100% | 100% |
| Heat index | -0°C (32°F) | 0°C (32°F) | -1°C (31°F) | -1°C (30°F) | -3°C (27°F) | -4°C (24°F) | -6°C (22°F) | -6°C (21°F) |
| Dew point | -6°C (22°F) | -5°C (23°F) | -5°C (22°F) | -6°C (21°F) | -7°C (19°F) | -8°C (17°F) | -10°C (15°F) | -9°C (15°F) |
| Wind | ||||||||
| Speed | 44km/h (27mph) | 45km/h (28mph) | 42km/h (26mph) | 44km/h (28mph) | 46km/h (29mph) | 48km/h (30mph) | 48km/h (30mph) | 48km/h (30mph) |
| Gusts | 58km/h (36mph) | 59km/h (37mph) | 55km/h (34mph) | 55km/h (34mph) | 56km/h (34mph) | 60km/h (38mph) | 61km/h (38mph) | 58km/h (36mph) |
| Direction | 281° W | 278° W | 279° W | 279° W | 276° W | 280° W | 271° W | 269° W |
| Wind chill | -8°C (18°F) | -8°C (18°F) | -8°C (17°F) | -9°C (15°F) | -12°C (11°F) | -14°C (7°F) | -16°C (4°F) | -16°C (3°F) |
| Waves | ||||||||
| Height | 2.3m (7.6ft) | 2.2m (7.1ft) | 2.0m (6.6ft) | 2.0m (6.4ft) | 2.0m (6.5ft) | 2.3m (7.4ft) | 2.5m (8.3ft) | 2.7m (8.8ft) |
| Direction | 351° N | 343° NNW | 330° NNW | 321° NW | 317° NW | 310° NW | 310° NW | 314° NW |
| Period | 8.8 sec. | 8.6 sec. | 8.4 sec. | 8.7 sec. | 8.8 sec. | 8.8 sec. | 8.8 sec. | 9.3 sec. |
| Significant height | 1.1m (3.6ft) | 1.1m (3.6ft) | 0.9m (3ft) | 1.0m (3.3ft) | 1.6m (5.2ft) | 1.4m (4.6ft) | 1.6m (5.2ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 07:02 and will set at 16:02 on the beach(es) of Otaru. The outside temperature will be a high of 23°F t and a low of 22°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 29.2mph km/h (with gusts up to 34.2mph). Wave height will be up to 8.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | -6°C (21°F) | -6°C (22°F) | -6°C (22°F) | -5°C (22°F) | -5°C (23°F) | -5°C (23°F) | -5°C (23°F) | -5°C (23°F) |
| Perceived temperature | -16°C (3°F) | -16°C (4°F) | -15°C (4°F) | -14°C (6°F) | -14°C (7°F) | -14°C (7°F) | -14°C (7°F) | -14°C (8°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 80% | 81% | 80% | 82% | 81% | 77% | 77% | 79% |
| Barometric pressure | 1014 hPa | 1014 hPa | 1015 hPa | 1016 hPa | 1015 hPa | 1016 hPa | 1017 hPa | 1018 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | -6°C (21°F) | -6°C (22°F) | -6°C (22°F) | -5°C (22°F) | -5°C (23°F) | -5°C (23°F) | -5°C (23°F) | -5°C (23°F) |
| Dew point | -9°C (16°F) | -9°C (17°F) | -9°C (17°F) | -8°C (18°F) | -8°C (18°F) | -8°C (17°F) | -9°C (17°F) | -8°C (18°F) |
| Wind | ||||||||
| Speed | 47km/h (29mph) | 46km/h (28mph) | 43km/h (27mph) | 40km/h (25mph) | 39km/h (24mph) | 41km/h (25mph) | 38km/h (23mph) | 37km/h (23mph) |
| Gusts | 55km/h (34mph) | 55km/h (34mph) | 51km/h (32mph) | 47km/h (29mph) | 46km/h (29mph) | 52km/h (32mph) | 51km/h (31mph) | 46km/h (29mph) |
| Direction | 270° W | 271° W | 271° W | 266° W | 261° W | 261° W | 262° W | 264° W |
| Wind chill | -16°C (3°F) | -16°C (4°F) | -15°C (4°F) | -14°C (6°F) | -14°C (7°F) | -14°C (7°F) | -14°C (7°F) | -14°C (8°F) |
| Waves | ||||||||
| Height | 2.7m (8.8ft) | 2.5m (8.1ft) | 2.3m (7.5ft) | 2.0m (6.6ft) | 1.7m (5.7ft) | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.5m (4.8ft) |
| Direction | 311° NW | 309° NW | 309° NW | 308° NW | 317° NW | 321° NW | 327° NNW | 326° NNW |
| Period | 9.5 sec. | 9.4 sec. | 9.1 sec. | 8.8 sec. | 8.6 sec. | 7.8 sec. | 8.0 sec. | 7.4 sec. |
| Significant height | 1.4m (4.6ft) | 1.2m (3.9ft) | 0.8m (2.6ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 07:03 and will set at 16:02 on the beach(es) of Otaru. The outside temperature will be a high of 29°F t and a low of 23°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 30.5mph). Wave height will be up to 4.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | |  |
| Outside temperature | -5°C (23°F) | -5°C (24°F) | -4°C (24°F) | -3°C (26°F) | -2°C (29°F) | -2°C (29°F) | -3°C (26°F) | -3°C (27°F) |
| Perceived temperature | -14°C (8°F) | -14°C (8°F) | -12°C (10°F) | -10°C (14°F) | -9°C (17°F) | -8°C (17°F) | -9°C (15°F) | -8°C (18°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 80% | 71% | 70% | 71% | 68% | 70% | 72% | 80% |
| Barometric pressure | 1018 hPa | 1020 hPa | 1022 hPa | 1024 hPa | 1023 hPa | 1024 hPa | 1025 hPa | 1025 hPa |
| Cloud cover | 100% | 100% | 100% | 95% | 89% | 100% | 32% | 96% |
| Heat index | -5°C (23°F) | -5°C (24°F) | -4°C (24°F) | -3°C (26°F) | -2°C (29°F) | -2°C (29°F) | -3°C (26°F) | -3°C (27°F) |
| Dew point | -8°C (18°F) | -9°C (16°F) | -9°C (16°F) | -8°C (18°F) | -7°C (19°F) | -6°C (20°F) | -8°C (18°F) | -6°C (22°F) |
| Wind | ||||||||
| Speed | 38km/h (23mph) | 40km/h (25mph) | 31km/h (19mph) | 23km/h (15mph) | 27km/h (17mph) | 28km/h (17mph) | 19km/h (12mph) | 15km/h (9mph) |
| Gusts | 46km/h (29mph) | 49km/h (31mph) | 42km/h (26mph) | 30km/h (19mph) | 34km/h (21mph) | 39km/h (24mph) | 36km/h (23mph) | 26km/h (16mph) |
| Direction | 269° W | 274° W | 273° W | 255° WSW | 251° WSW | 256° WSW | 240° WSW | 200° SSW |
| Wind chill | -14°C (8°F) | -14°C (8°F) | -12°C (10°F) | -10°C (14°F) | -9°C (17°F) | -8°C (17°F) | -9°C (15°F) | -8°C (18°F) |
| Waves | ||||||||
| Height | 1.4m (4.7ft) | 1.5m (4.9ft) | 1.4m (4.8ft) | 1.4m (4.6ft) | 1.3m (4.2ft) | 1.2m (4.1ft) | 1.2m (3.9ft) | 1.1m (3.5ft) |
| Direction | 322° NW | 311° NW | 308° NW | 312° NW | 315° NW | 317° NW | 315° NW | 312° NW |
| Period | 7.3 sec. | 7.4 sec. | 7.4 sec. | 7.3 sec. | 7.4 sec. | 7.2 sec. | 7.0 sec. | 6.8 sec. |
| Significant height | 0.7m (2.3ft) | 0.6m (2ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.3m (1ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 07:03 and will set at 16:02 on the beach(es) of Otaru. The outside temperature will be a high of 40°F t and a low of 29°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 16.2mph). Wave height will be up to 3.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | |  |  |  | | |  |  |
| Outside temperature | -2°C (29°F) | -2°C (29°F) | -1°C (31°F) | 3°C (37°F) | 3°C (38°F) | 3°C (38°F) | 4°C (38°F) | 4°C (40°F) |
| Perceived temperature | -5°C (22°F) | -5°C (23°F) | -4°C (25°F) | 0°C (33°F) | 0°C (33°F) | -0°C (32°F) | 0°C (33°F) | 1°C (34°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 97% | 94% | 84% | 83% | 89% | 93% | 92% | 91% |
| Barometric pressure | 1024 hPa | 1024 hPa | 1024 hPa | 1024 hPa | 1023 hPa | 1022 hPa | 1022 hPa | 1021 hPa |
| Cloud cover | 98% | 87% | 82% | 84% | 100% | 100% | 100% | 100% |
| Heat index | -2°C (29°F) | -2°C (29°F) | -1°C (31°F) | 3°C (37°F) | 3°C (38°F) | 3°C (38°F) | 4°C (38°F) | 4°C (40°F) |
| Dew point | -2°C (28°F) | -2°C (28°F) | -3°C (27°F) | -0°C (32°F) | 1°C (35°F) | 2°C (36°F) | 2°C (36°F) | 3°C (38°F) |
| Wind | ||||||||
| Speed | 11km/h (7mph) | 10km/h (6mph) | 9km/h (6mph) | 8km/h (5mph) | 10km/h (6mph) | 15km/h (9mph) | 13km/h (8mph) | 13km/h (8mph) |
| Gusts | 17km/h (10mph) | 18km/h (11mph) | 16km/h (10mph) | 12km/h (7mph) | 16km/h (10mph) | 26km/h (16mph) | 23km/h (14mph) | 24km/h (15mph) |
| Direction | 191° SSW | 181° S | 163° SSE | 150° SSE | 157° SSE | 153° SSE | 168° SSE | 170° S |
| Wind chill | -5°C (22°F) | -5°C (23°F) | -4°C (25°F) | 0°C (33°F) | 0°C (33°F) | -0°C (32°F) | 0°C (33°F) | 1°C (34°F) |
| Waves | ||||||||
| Height | 1.0m (3.2ft) | 0.9m (2.9ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.6m (2.0ft) | 0.6m (2.0ft) | 0.6m (2.0ft) | 0.6m (1.9ft) |
| Direction | 310° NW | 309° NW | 307° NW | 307° NW | 306° NW | 290° WNW | 284° WNW | 283° WNW |
| Period | 6.7 sec. | 6.3 sec. | 6.2 sec. | 5.9 sec. | 5.9 sec. | 6.8 sec. | 8.1 sec. | 8.3 sec. |
| Significant height | 1.3m (4.3ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.0m (3.3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 07:04 and will set at 16:03 on the beach(es) of Otaru. The outside temperature will be a high of 41°F t and a low of 38°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 23mph). Wave height will be up to 3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 5°C (41°F) | 5°C (42°F) | 5°C (42°F) | 4°C (40°F) | 4°C (39°F) | 4°C (38°F) | 4°C (38°F) | 3°C (37°F) |
| Perceived temperature | 2°C (35°F) | 3°C (38°F) | 2°C (35°F) | 1°C (34°F) | 1°C (35°F) | 1°C (34°F) | 1°C (33°F) | -2°C (28°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 94% | 90% | 90% | 90% | 92% | 88% | 84% | 89% |
| Barometric pressure | 1020 hPa | 1019 hPa | 1020 hPa | 1021 hPa | 1020 hPa | 1020 hPa | 1020 hPa | 1021 hPa |
| Cloud cover | 66% | 100% | 41% | 13% | 45% | 34% | 54% | 100% |
| Heat index | 5°C (41°F) | 5°C (42°F) | 5°C (42°F) | 4°C (40°F) | 4°C (39°F) | 4°C (38°F) | 4°C (38°F) | 3°C (37°F) |
| Dew point | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 3°C (37°F) | 3°C (37°F) | 2°C (35°F) | 1°C (34°F) | 1°C (34°F) |
| Wind | ||||||||
| Speed | 13km/h (8mph) | 10km/h (6mph) | 17km/h (11mph) | 15km/h (9mph) | 9km/h (6mph) | 10km/h (6mph) | 10km/h (6mph) | 26km/h (16mph) |
| Gusts | 27km/h (17mph) | 20km/h (12mph) | 29km/h (18mph) | 26km/h (16mph) | 17km/h (11mph) | 20km/h (13mph) | 22km/h (13mph) | 37km/h (23mph) |
| Direction | 169° S | 183° S | 224° SW | 198° SSW | 171° S | 171° S | 193° SSW | 314° NW |
| Wind chill | 2°C (35°F) | 3°C (38°F) | 2°C (35°F) | 1°C (34°F) | 1°C (35°F) | 1°C (34°F) | 1°C (33°F) | -2°C (28°F) |
| Waves | ||||||||
| Height | 0.6m (1.9ft) | 0.6m (2.1ft) | 0.6m (1.9ft) | 0.5m (1.8ft) | 0.5m (1.6ft) | 0.5m (1.7ft) | 0.7m (2.4ft) | 0.9m (3.0ft) |
| Direction | 284° WNW | 284° WNW | 282° WNW | 303° WNW | 306° NW | 310° NW | 313° NW | 318° NW |
| Period | 8.8 sec. | 9.4 sec. | 9.0 sec. | 5.7 sec. | 5.5 sec. | 5.3 sec. | 5.3 sec. | 7.5 sec. |
| Significant height | 0.6m (2ft) | 0.9m (3ft) | 0.9m (3ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.9m (3ft) | 0.7m (2.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) |