Sea weather in Ulleungdo Island in South Korea All the beach weather in Ulleungdo Island
All the essential weather information for enjoying the beach in Ulleungdo Island in South Korea, 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 Ulleungdo Island over the next 7 days?
Discover the best moment to go to the beach in Ulleungdo Island in South Korea this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Ulleungdo Island. 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 |
|---|---|---|---|---|
| Monday 15 December 2025 | 41°F to 50°F | 16.2mph | discouraged | all the sea weather |
| Tuesday 16 December 2025 | 50°F to 54°F | 17.4mph | discouraged | all the sea weather |
| Wednesday 17 December 2025 | 49°F to 54°F | 16.2mph | discouraged | all the sea weather |
| Thursday 18 December 2025 | 47°F to 56°F | 13.1mph | discouraged | all the sea weather |
| Friday 19 December 2025 | 50°F to 59°F | 23.6mph | discouraged | all the sea weather |
| Saturday 20 December 2025 | 58°F to 59°F | 14.9mph | discouraged | all the sea weather |
| Sunday 21 December 2025 | 50°F to 61°F | 14.9mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Ulleungdo Island
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 07:24 and will set at 17:02 on the beach(es) of Ulleungdo Island. The outside temperature will be a high of 50°F t and a low of 41°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 20.5mph km/h (with gusts up to 23.6mph). Wave height will be up to 8.5ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  |  |  |  | |  | | |
| Outside temperature | 8°C (46°F) | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) | 5°C (41°F) | 8°C (46°F) | 6°C (42°F) | 10°C (50°F) |
| Perceived temperature | 3°C (38°F) | 3°C (37°F) | 3°C (38°F) | 5°C (40°F) | 3°C (37°F) | 5°C (41°F) | 2°C (36°F) | 7°C (44°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 53% | 52% | 50% | 48% | 46% | 47% | 48% | 50% |
| Barometric pressure | 1019 hPa | 1020 hPa | 1021 hPa | 1023 hPa | 1022 hPa | 1022 hPa | 1022 hPa | 1022 hPa |
| Cloud cover | 84% | 18% | 0% | 0% | 0% | 32% | 0% | 31% |
| Heat index | 8°C (46°F) | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) | 5°C (41°F) | 8°C (46°F) | 6°C (42°F) | 10°C (50°F) |
| Dew point | -1°C (30°F) | -2°C (28°F) | -2°C (28°F) | -3°C (27°F) | -5°C (22°F) | -3°C (27°F) | -4°C (24°F) | 0°C (32°F) |
| Wind | ||||||||
| Speed | 33km/h (21mph) | 27km/h (17mph) | 22km/h (14mph) | 15km/h (9mph) | 11km/h (7mph) | 14km/h (9mph) | 18km/h (11mph) | 26km/h (16mph) |
| Gusts | 38km/h (24mph) | 31km/h (19mph) | 27km/h (17mph) | 19km/h (12mph) | 20km/h (13mph) | 20km/h (12mph) | 19km/h (12mph) | 32km/h (20mph) |
| Direction | 297° WNW | 303° WNW | 309° NW | 307° NW | 278° W | 213° SSW | 219° SW | 238° WSW |
| Wind chill | 3°C (38°F) | 3°C (37°F) | 3°C (38°F) | 5°C (40°F) | 3°C (37°F) | 5°C (41°F) | 2°C (36°F) | 7°C (44°F) |
| Waves | ||||||||
| Height | 2.6m (8.7ft) | 2.3m (7.5ft) | 2.0m (6.7ft) | 1.9m (6.2ft) | 1.9m (6.1ft) | 1.8m (6.0ft) | 1.7m (5.7ft) | 1.6m (5.3ft) |
| Direction | 12° NNE | 14° NNE | 16° NNE | 21° NNE | 28° NNE | 32° NNE | 34° NNE | 42° NE |
| Period | 10.2 sec. | 9.8 sec. | 9.2 sec. | 9.0 sec. | 8.3 sec. | 9.8 sec. | 9.8 sec. | 9.7 sec. |
| Significant height | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.5m (1.6ft) | 1.2m (3.9ft) | 0.4m (1.3ft) | 0.6m (2ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 17°C (63°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 07:25 and will set at 17:03 on the beach(es) of Ulleungdo Island. 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 18mph km/h (with gusts up to 25.5mph). 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 | 10°C (50°F) | 10°C (50°F) | 11°C (51°F) | 10°C (50°F) | 10°C (49°F) | 11°C (52°F) | 12°C (53°F) | 12°C (53°F) |
| Perceived temperature | 7°C (45°F) | 8°C (47°F) | 8°C (46°F) | 7°C (44°F) | 6°C (43°F) | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 53% | 48% | 50% | 60% | 59% | 55% | 56% | 59% |
| Barometric pressure | 1021 hPa | 1021 hPa | 1021 hPa | 1022 hPa | 1022 hPa | 1021 hPa | 1021 hPa | 1021 hPa |
| Cloud cover | 45% | 46% | 11% | 10% | 8% | 78% | 87% | 89% |
| Heat index | 10°C (50°F) | 10°C (50°F) | 11°C (51°F) | 10°C (50°F) | 10°C (49°F) | 11°C (52°F) | 12°C (53°F) | 12°C (53°F) |
| Dew point | 1°C (34°F) | -0°C (32°F) | 1°C (33°F) | 3°C (37°F) | 2°C (36°F) | 2°C (36°F) | 3°C (37°F) | 4°C (39°F) |
| Wind | ||||||||
| Speed | 25km/h (16mph) | 14km/h (9mph) | 24km/h (15mph) | 27km/h (17mph) | 29km/h (18mph) | 22km/h (14mph) | 22km/h (14mph) | 28km/h (17mph) |
| Gusts | 31km/h (19mph) | 18km/h (11mph) | 30km/h (19mph) | 33km/h (20mph) | 41km/h (26mph) | 30km/h (19mph) | 30km/h (19mph) | 36km/h (22mph) |
| Direction | 248° WSW | 272° W | 313° NW | 306° NW | 261° W | 276° W | 263° W | 276° W |
| Wind chill | 7°C (45°F) | 8°C (47°F) | 8°C (46°F) | 7°C (44°F) | 6°C (43°F) | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) |
| Waves | ||||||||
| Height | 1.5m (4.9ft) | 1.4m (4.5ft) | 1.3m (4.2ft) | 1.3m (4.1ft) | 1.3m (4.3ft) | 1.4m (4.5ft) | 1.3m (4.2ft) | 1.3m (4.1ft) |
| Direction | 44° NE | 42° NE | 43° NE | 43° NE | 41° NE | 41° NE | 41° NE | 41° NE |
| Period | 9.6 sec. | 9.2 sec. | 9.2 sec. | 9.2 sec. | 9.5 sec. | 9.5 sec. | 9.2 sec. | 9.1 sec. |
| Significant height | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.6m (2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.4m (4.6ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 17°C (63°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 07:25 and will set at 17:03 on the beach(es) of Ulleungdo Island. The outside temperature will be a high of 54°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 26.1mph). 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 | 12°C (53°F) | 11°C (52°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 9°C (48°F) | 9°C (49°F) |
| Perceived temperature | 9°C (48°F) | 8°C (47°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (44°F) | 5°C (42°F) | 6°C (43°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 57% | 57% | 64% | 69% | 63% | 63% | 70% | 76% |
| Barometric pressure | 1021 hPa | 1021 hPa | 1021 hPa | 1022 hPa | 1021 hPa | 1021 hPa | 1023 hPa | 1024 hPa |
| Cloud cover | 100% | 100% | 50% | 88% | 90% | 82% | 89% | 100% |
| Heat index | 12°C (53°F) | 11°C (52°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 9°C (48°F) | 9°C (49°F) |
| Dew point | 4°C (38°F) | 3°C (38°F) | 4°C (39°F) | 5°C (41°F) | 3°C (38°F) | 3°C (38°F) | 4°C (39°F) | 5°C (42°F) |
| Wind | ||||||||
| Speed | 29km/h (18mph) | 30km/h (19mph) | 25km/h (15mph) | 27km/h (17mph) | 24km/h (15mph) | 32km/h (20mph) | 27km/h (17mph) | 26km/h (16mph) |
| Gusts | 35km/h (22mph) | 36km/h (23mph) | 31km/h (19mph) | 33km/h (21mph) | 31km/h (19mph) | 42km/h (26mph) | 38km/h (23mph) | 34km/h (21mph) |
| Direction | 286° WNW | 290° WNW | 320° NW | 340° NNW | 345° NNW | 344° NNW | 13° NNE | 72° ENE |
| Wind chill | 9°C (48°F) | 8°C (47°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (44°F) | 5°C (42°F) | 6°C (43°F) |
| Waves | ||||||||
| Height | 1.1m (3.6ft) | 1.0m (3.3ft) | 1.3m (4.2ft) | 1.9m (6.1ft) | 2.3m (7.7ft) | 2.5m (8.3ft) | 2.7m (8.8ft) | 2.5m (8.2ft) |
| Direction | 40° NE | 38° NE | 27° NNE | 30° NNE | 39° NE | 40° NE | 39° NE | 37° NE |
| Period | 8.9 sec. | 8.5 sec. | 7.4 sec. | 7.4 sec. | 7.3 sec. | 7.3 sec. | 7.2 sec. | 7.1 sec. |
| Significant height | 1.1m (3.6ft) | 0.9m (3ft) | 0.2m (0.7ft) | 0.7m (2.3ft) | 1.1m (3.6ft) | 1.4m (4.6ft) | 1.6m (5.2ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 17°C (63°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 07:26 and will set at 17:03 on the beach(es) of Ulleungdo Island. The outside temperature will be a high of 56°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 14.9mph km/h (with gusts up to 19.3mph). Wave height will be up to 7.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 10°C (50°F) | 10°C (51°F) | 11°C (52°F) | 12°C (53°F) | 9°C (49°F) | 9°C (48°F) | 8°C (47°F) | 13°C (55°F) |
| Perceived temperature | 7°C (45°F) | 8°C (46°F) | 9°C (49°F) | 10°C (49°F) | 6°C (43°F) | 5°C (42°F) | 5°C (42°F) | 10°C (51°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 72% | 75% | 68% | 64% | 62% | 50% | 46% | 48% |
| Barometric pressure | 1024 hPa | 1024 hPa | 1024 hPa | 1025 hPa | 1024 hPa | 1023 hPa | 1023 hPa | 1023 hPa |
| Cloud cover | 100% | 100% | 88% | 65% | 0% | 0% | 2% | 0% |
| Heat index | 10°C (50°F) | 10°C (51°F) | 11°C (52°F) | 12°C (53°F) | 9°C (49°F) | 9°C (48°F) | 8°C (47°F) | 13°C (55°F) |
| Dew point | 5°C (41°F) | 6°C (43°F) | 6°C (42°F) | 5°C (41°F) | 2°C (36°F) | -1°C (30°F) | -2°C (28°F) | 2°C (35°F) |
| Wind | ||||||||
| Speed | 21km/h (13mph) | 20km/h (12mph) | 18km/h (11mph) | 20km/h (13mph) | 24km/h (15mph) | 24km/h (15mph) | 20km/h (12mph) | 21km/h (13mph) |
| Gusts | 26km/h (16mph) | 27km/h (17mph) | 23km/h (14mph) | 27km/h (16mph) | 27km/h (17mph) | 31km/h (19mph) | 21km/h (13mph) | 27km/h (17mph) |
| Direction | 87° E | 120° ESE | 180° S | 207° SSW | 216° SW | 224° SW | 237° WSW | 232° SW |
| Wind chill | 7°C (45°F) | 8°C (46°F) | 9°C (49°F) | 10°C (49°F) | 6°C (43°F) | 5°C (42°F) | 5°C (42°F) | 10°C (51°F) |
| Waves | ||||||||
| Height | 2.2m (7.3ft) | 1.9m (6.3ft) | 1.7m (5.5ft) | 1.5m (5.0ft) | 1.4m (4.5ft) | 1.2m (4.1ft) | 1.1m (3.7ft) | 1.1m (3.5ft) |
| Direction | 49° NE | 50° NE | 51° NE | 71° ENE | 72° ENE | 71° ENE | 86° E | 87° E |
| Period | 6.8 sec. | 7.5 sec. | 6.8 sec. | 6.9 sec. | 6.0 sec. | 5.8 sec. | 5.6 sec. | 5.5 sec. |
| Significant height | 1.2m (3.9ft) | 1.0m (3.3ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 0.6m (2ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 17°C (63°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 07:27 and will set at 17:04 on the beach(es) of Ulleungdo Island. The outside temperature will be a high of 59°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 23.6mph km/h (with gusts up to 31.7mph). Wave height will be up to 4.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 12°C (54°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 11°C (52°F) | 11°C (52°F) | 11°C (51°F) | 15°C (58°F) |
| Perceived temperature | 10°C (50°F) | 10°C (51°F) | 10°C (51°F) | 10°C (51°F) | 8°C (47°F) | 8°C (46°F) | 7°C (45°F) | 12°C (54°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 47% | 47% | 48% | 50% | 50% | 48% | 47% | 49% |
| Barometric pressure | 1023 hPa | 1023 hPa | 1023 hPa | 1023 hPa | 1022 hPa | 1021 hPa | 1021 hPa | 1021 hPa |
| Cloud cover | 0% | 3% | 2% | 0% | 0% | 0% | 0% | 0% |
| Heat index | 12°C (54°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 11°C (52°F) | 11°C (52°F) | 11°C (51°F) | 15°C (58°F) |
| Dew point | 2°C (35°F) | 2°C (35°F) | 2°C (35°F) | 3°C (37°F) | 1°C (34°F) | 0°C (33°F) | -0°C (32°F) | 4°C (39°F) |
| Wind | ||||||||
| Speed | 23km/h (15mph) | 24km/h (15mph) | 24km/h (15mph) | 27km/h (17mph) | 28km/h (17mph) | 27km/h (17mph) | 31km/h (19mph) | 38km/h (23mph) |
| Gusts | 30km/h (19mph) | 31km/h (19mph) | 31km/h (19mph) | 34km/h (21mph) | 35km/h (22mph) | 28km/h (17mph) | 32km/h (20mph) | 51km/h (32mph) |
| Direction | 232° SW | 228° SW | 224° SW | 215° SW | 220° SW | 214° SW | 210° SSW | 210° SSW |
| Wind chill | 10°C (50°F) | 10°C (51°F) | 10°C (51°F) | 10°C (51°F) | 8°C (47°F) | 8°C (46°F) | 7°C (45°F) | 12°C (54°F) |
| Waves | ||||||||
| Height | 1.0m (3.3ft) | 1.0m (3.4ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 1.1m (3.7ft) | 1.3m (4.2ft) | 1.2m (4.0ft) | 1.3m (4.3ft) |
| Direction | 96° E | 122° ESE | 200° SSW | 205° SSW | 200° SSW | 198° SSW | 196° SSW | 202° SSW |
| Period | 5.2 sec. | 5.1 sec. | 4.8 sec. | 4.7 sec. | 4.7 sec. | 6.0 sec. | 5.2 sec. | 5.1 sec. |
| Significant height | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.3m (4.3ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.3m (4.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 17°C (63°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 07:27 and will set at 17:04 on the beach(es) of Ulleungdo Island. The outside temperature will be a high of 59°F t and a low of 58°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 29.2mph). Wave height will be up to 4.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | |  |
| Outside temperature | 15°C (58°F) | 14°C (58°F) | 14°C (56°F) | 14°C (58°F) | 15°C (59°F) | 15°C (59°F) | 15°C (60°F) | 15°C (60°F) |
| Perceived temperature | 12°C (54°F) | 12°C (54°F) | 12°C (54°F) | 13°C (55°F) | 13°C (55°F) | 13°C (56°F) | 15°C (60°F) | 15°C (60°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 49% | 49% | 56% | 60% | 60% | 71% | 79% | 87% |
| Barometric pressure | 1021 hPa | 1021 hPa | 1021 hPa | 1022 hPa | 1021 hPa | 1020 hPa | 1020 hPa | 1018 hPa |
| Cloud cover | 0% | 6% | 8% | 0% | 37% | 23% | 89% | 100% |
| Heat index | 15°C (58°F) | 14°C (58°F) | 14°C (56°F) | 14°C (58°F) | 15°C (59°F) | 15°C (59°F) | 15°C (60°F) | 15°C (60°F) |
| Dew point | 4°C (39°F) | 4°C (39°F) | 5°C (41°F) | 7°C (44°F) | 7°C (45°F) | 10°C (49°F) | 12°C (53°F) | 13°C (56°F) |
| Wind | ||||||||
| Speed | 36km/h (22mph) | 34km/h (21mph) | 17km/h (11mph) | 21km/h (13mph) | 30km/h (19mph) | 25km/h (15mph) | 23km/h (15mph) | 24km/h (15mph) |
| Gusts | 47km/h (29mph) | 45km/h (28mph) | 22km/h (14mph) | 28km/h (18mph) | 42km/h (26mph) | 37km/h (23mph) | 34km/h (21mph) | 34km/h (21mph) |
| Direction | 229° SW | 235° SW | 264° W | 223° SW | 206° SSW | 215° SW | 198° SSW | 167° SSE |
| Wind chill | 12°C (54°F) | 12°C (54°F) | 12°C (54°F) | 13°C (55°F) | 13°C (55°F) | 13°C (56°F) | 15°C (60°F) | 15°C (60°F) |
| Waves | ||||||||
| Height | 1.3m (4.4ft) | 1.2m (3.8ft) | 0.9m (2.8ft) | 0.7m (2.5ft) | 0.7m (2.2ft) | 0.6m (1.9ft) | 0.4m (1.4ft) | 0.4m (1.2ft) |
| Direction | 211° SSW | 209° SSW | 197° SSW | 218° SW | 254° WSW | 251° WSW | 264° W | 236° WSW |
| Period | 5.0 sec. | 5.4 sec. | 5.1 sec. | 4.9 sec. | 5.0 sec. | 4.7 sec. | 4.3 sec. | 4.1 sec. |
| Significant height | 1.2m (3.9ft) | 1.4m (4.6ft) | 0.8m (2.6ft) | 0.6m (2ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 17°C (63°F) |
Sea weather on Sunday 21 December 2025
On Sunday 21 December 2025, the sun will rise at 07:28 and will set at 17:05 on the beach(es) of Ulleungdo Island. The outside temperature will be a high of 61°F t and a low of 50°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 24.2mph km/h (with gusts up to 32.9mph). Wave height will be up to 6.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 16°C (60°F) | 16°C (60°F) | 15°C (59°F) | 15°C (58°F) | 14°C (57°F) | 13°C (55°F) | 11°C (53°F) | 10°C (51°F) |
| Perceived temperature | 16°C (60°F) | 16°C (60°F) | 13°C (56°F) | 13°C (56°F) | 12°C (53°F) | 10°C (49°F) | 8°C (47°F) | 8°C (46°F) |
| Precipitation | 0.1in | 0in | 0.1in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 89% | 92% | 93% | 84% | 77% | 75% | 75% | 72% |
| Barometric pressure | 1016 hPa | 1014 hPa | 1012 hPa | 1012 hPa | 1011 hPa | 1011 hPa | 1012 hPa | 1013 hPa |
| Cloud cover | 100% | 100% | 100% | 92% | 100% | 99% | 94% | 92% |
| Heat index | 16°C (60°F) | 16°C (60°F) | 15°C (59°F) | 15°C (58°F) | 14°C (57°F) | 13°C (55°F) | 11°C (53°F) | 10°C (51°F) |
| Dew point | 14°C (56°F) | 14°C (58°F) | 14°C (57°F) | 12°C (53°F) | 10°C (50°F) | 8°C (47°F) | 7°C (45°F) | 6°C (42°F) |
| Wind | ||||||||
| Speed | 39km/h (24mph) | 35km/h (21mph) | 25km/h (15mph) | 16km/h (10mph) | 27km/h (17mph) | 39km/h (24mph) | 33km/h (21mph) | 24km/h (15mph) |
| Gusts | 53km/h (33mph) | 47km/h (29mph) | 34km/h (21mph) | 22km/h (14mph) | 37km/h (23mph) | 51km/h (32mph) | 45km/h (28mph) | 31km/h (19mph) |
| Direction | 182° S | 208° SSW | 269° W | 329° NNW | 330° NNW | 328° NNW | 356° N | 358° N |
| Wind chill | 16°C (60°F) | 16°C (60°F) | 13°C (56°F) | 13°C (56°F) | 12°C (53°F) | 10°C (49°F) | 8°C (47°F) | 8°C (46°F) |
| Waves | ||||||||
| Height | 0.4m (1.4ft) | 0.6m (2.1ft) | 1.0m (3.2ft) | 1.2m (4.1ft) | 1.9m (6.1ft) | 1.7m (5.5ft) | 1.6m (5.1ft) | 1.3m (4.1ft) |
| Direction | 194° SSW | 191° SSW | 194° SSW | 202° SSW | 210° SSW | 212° SSW | 213° SSW | 212° SSW |
| Period | 4.5 sec. | 4.4 sec. | 4.3 sec. | 6.3 sec. | 6.1 sec. | 6.2 sec. | 6.1 sec. | 5.7 sec. |
| Significant height | 0.7m (2.3ft) | 1.0m (3.3ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.8m (5.9ft) | 1.3m (4.3ft) | 1.4m (4.6ft) | 1.3m (4.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 17°C (63°F) |