Sea weather in Ansan-si in South Korea All the beach weather in Ansan-si
All the essential weather information for enjoying the beach in Ansan-si 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 Ansan-si over the next 7 days?
Discover the best moment to go to the beach in Ansan-si in South Korea this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Ansan-si. 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 | 36°F to 43°F | 7.5mph | discouraged | all the sea weather |
| Tuesday 16 December 2025 | 45°F to 47°F | 5.6mph | recommended | all the sea weather |
| Wednesday 17 December 2025 | 34°F to 45°F | 11.2mph | discouraged | all the sea weather |
| Thursday 18 December 2025 | 36°F to 43°F | 2.5mph | discouraged | all the sea weather |
| Friday 19 December 2025 | 40°F to 47°F | 7.5mph | recommended | all the sea weather |
| Saturday 20 December 2025 | 45°F to 50°F | 3.7mph | recommended | all the sea weather |
| Sunday 21 December 2025 | 36°F to 49°F | 21.1mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Ansan-si
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 07:41 and will set at 17:17 on the beach(es) of Ansan-si. The outside temperature will be a high of 43°F t and a low of 36°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 12.4mph). Wave height will be up to 1.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | |  | | | | |
| Outside temperature | 2°C (36°F) | 2°C (36°F) | 2°C (35°F) | 2°C (36°F) | 3°C (38°F) | 5°C (40°F) | 5°C (41°F) | 6°C (43°F) |
| Perceived temperature | -2°C (29°F) | -0°C (32°F) | 1°C (33°F) | 0°C (32°F) | 1°C (33°F) | 3°C (37°F) | 3°C (38°F) | 4°C (39°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 55% | 55% | 55% | 56% | 61% | 65% | 65% | 61% |
| Barometric pressure | 1023 hPa | 1024 hPa | 1024 hPa | 1026 hPa | 1025 hPa | 1024 hPa | 1024 hPa | 1024 hPa |
| Cloud cover | 21% | 36% | 27% | 7% | 16% | 45% | 46% | 72% |
| Heat index | 2°C (36°F) | 2°C (36°F) | 2°C (35°F) | 2°C (36°F) | 3°C (38°F) | 5°C (40°F) | 5°C (41°F) | 6°C (43°F) |
| Dew point | -6°C (22°F) | -6°C (21°F) | -6°C (21°F) | -6°C (22°F) | -4°C (25°F) | -2°C (29°F) | -1°C (30°F) | -1°C (31°F) |
| Wind | ||||||||
| Speed | 15km/h (9mph) | 8km/h (5mph) | 5km/h (3mph) | 6km/h (4mph) | 8km/h (5mph) | 7km/h (4mph) | 7km/h (4mph) | 12km/h (7mph) |
| Gusts | 20km/h (12mph) | 11km/h (7mph) | 7km/h (4mph) | 9km/h (6mph) | 12km/h (7mph) | 10km/h (7mph) | 11km/h (7mph) | 18km/h (11mph) |
| Direction | 330° NNW | 358° N | 45° NE | 114° ESE | 147° SSE | 154° SSE | 192° SSW | 213° SSW |
| Wind chill | -2°C (29°F) | -0°C (32°F) | 1°C (33°F) | 0°C (32°F) | 1°C (33°F) | 3°C (37°F) | 3°C (38°F) | 4°C (39°F) |
| Waves | ||||||||
| Height | 0.4m (1.3ft) | 0.3m (0.9ft) | 0.2m (0.7ft) | 0.2m (0.6ft) | 0.1m (0.5ft) | 0.2m (0.6ft) | 0.3m (0.9ft) | 0.3m (1.1ft) |
| Direction | 308° NW | 302° WNW | 261° W | 244° WSW | 245° WSW | 245° WSW | 243° WSW | 223° SW |
| Period | 7.1 sec. | 4.2 sec. | 4.0 sec. | 6.0 sec. | 5.8 sec. | 5.8 sec. | 5.8 sec. | 5.8 sec. |
| Significant height | 0.6m (2ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) | 0.3m (1ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 07:42 and will set at 17:17 on the beach(es) of Ansan-si. The outside temperature will be a high of 47°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 9.3mph km/h (with gusts up to 14.9mph). Wave height will be up to 2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | |  | | | | |
| Outside temperature | 7°C (44°F) | 7°C (44°F) | 8°C (46°F) | 8°C (46°F) | 8°C (46°F) | 8°C (46°F) | 7°C (44°F) | 8°C (46°F) |
| Perceived temperature | 4°C (39°F) | 4°C (40°F) | 5°C (41°F) | 6°C (43°F) | 6°C (42°F) | 5°C (42°F) | 4°C (40°F) | 6°C (43°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 66% | 71% | 71% | 74% | 73% | 67% | 66% | 68% |
| Barometric pressure | 1023 hPa | 1023 hPa | 1022 hPa | 1022 hPa | 1022 hPa | 1021 hPa | 1023 hPa | 1023 hPa |
| Cloud cover | 98% | 100% | 87% | 100% | 81% | 9% | 9% | 100% |
| Heat index | 7°C (44°F) | 7°C (44°F) | 8°C (46°F) | 8°C (46°F) | 8°C (46°F) | 8°C (46°F) | 7°C (44°F) | 8°C (46°F) |
| Dew point | 1°C (34°F) | 2°C (35°F) | 3°C (37°F) | 3°C (38°F) | 3°C (38°F) | 2°C (36°F) | 1°C (34°F) | 2°C (36°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 12km/h (8mph) | 14km/h (9mph) | 10km/h (6mph) | 10km/h (6mph) | 15km/h (9mph) | 12km/h (8mph) | 9km/h (6mph) |
| Gusts | 20km/h (13mph) | 17km/h (11mph) | 20km/h (12mph) | 15km/h (9mph) | 15km/h (9mph) | 24km/h (15mph) | 22km/h (14mph) | 14km/h (9mph) |
| Direction | 201° SSW | 204° SSW | 228° SW | 237° WSW | 281° WNW | 281° W | 286° WNW | 293° WNW |
| Wind chill | 4°C (39°F) | 4°C (40°F) | 5°C (41°F) | 6°C (43°F) | 6°C (42°F) | 5°C (42°F) | 4°C (40°F) | 6°C (43°F) |
| Waves | ||||||||
| Height | 0.5m (1.6ft) | 0.6m (1.9ft) | 0.5m (1.7ft) | 0.4m (1.3ft) | 0.3m (1.0ft) | 0.2m (0.8ft) | 0.2m (0.6ft) | 0.1m (0.5ft) |
| Direction | 229° SW | 239° WSW | 244° WSW | 253° WSW | 269° W | 264° W | 238° WSW | 236° WSW |
| Period | 5.8 sec. | 5.8 sec. | 5.8 sec. | 5.8 sec. | 5.8 sec. | 5.8 sec. | 5.6 sec. | 5.6 sec. |
| Significant height | 0.8m (2.6ft) | 0.9m (3ft) | 0.7m (2.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 07:42 and will set at 17:17 on the beach(es) of Ansan-si. The outside temperature will be a high of 45°F t and a low of 34°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 20.5mph). Wave height will be up to 1ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | |  |  | | | | |
| Outside temperature | 7°C (44°F) | 6°C (42°F) | 5°C (41°F) | 4°C (40°F) | 3°C (37°F) | 3°C (38°F) | 2°C (35°F) | 5°C (40°F) |
| Perceived temperature | 4°C (40°F) | 2°C (36°F) | 1°C (34°F) | 0°C (33°F) | -1°C (30°F) | -1°C (30°F) | -3°C (26°F) | 1°C (33°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 74% | 73% | 71% | 67% | 57% | 47% | 47% | 46% |
| Barometric pressure | 1023 hPa | 1023 hPa | 1024 hPa | 1025 hPa | 1025 hPa | 1025 hPa | 1026 hPa | 1027 hPa |
| Cloud cover | 67% | 47% | 0% | 0% | 0% | 0% | 0% | 0% |
| Heat index | 7°C (44°F) | 6°C (42°F) | 5°C (41°F) | 4°C (40°F) | 3°C (37°F) | 3°C (38°F) | 2°C (35°F) | 5°C (40°F) |
| Dew point | 2°C (36°F) | 1°C (34°F) | -0°C (32°F) | -1°C (30°F) | -5°C (23°F) | -7°C (20°F) | -8°C (17°F) | -6°C (21°F) |
| Wind | ||||||||
| Speed | 13km/h (8mph) | 16km/h (10mph) | 17km/h (10mph) | 18km/h (11mph) | 18km/h (11mph) | 20km/h (12mph) | 22km/h (13mph) | 18km/h (11mph) |
| Gusts | 19km/h (12mph) | 23km/h (14mph) | 23km/h (15mph) | 25km/h (16mph) | 33km/h (21mph) | 20km/h (12mph) | 22km/h (13mph) | 25km/h (15mph) |
| Direction | 338° NNW | 337° NNW | 341° NNW | 339° NNW | 336° NNW | 334° NNW | 334° NNW | 336° NNW |
| Wind chill | 4°C (40°F) | 2°C (36°F) | 1°C (34°F) | 0°C (33°F) | -1°C (30°F) | -1°C (30°F) | -3°C (26°F) | 1°C (33°F) |
| Waves | ||||||||
| Height | 0.2m (0.6ft) | 0.2m (0.7ft) | 0.2m (0.7ft) | 0.2m (0.6ft) | 0.2m (0.6ft) | 0.2m (0.7ft) | 0.3m (1.0ft) | 0.2m (0.8ft) |
| Direction | 235° SW | 321° NW | 326° NW | 327° NNW | 326° NW | 325° NW | 319° NW | 317° NW |
| Period | 5.5 sec. | 5.5 sec. | 5.4 sec. | 5.2 sec. | 3.4 sec. | 3.4 sec. | 3.4 sec. | 3.8 sec. |
| Significant height | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.6m (2ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 07:43 and will set at 17:18 on the beach(es) of Ansan-si. The outside temperature will be a high of 43°F t and a low of 36°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 7.5mph km/h (with gusts up to 11.2mph). Wave height will be up to 2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 4°C (39°F) | 4°C (39°F) | 4°C (38°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 2°C (36°F) | 6°C (42°F) |
| Perceived temperature | 1°C (34°F) | 2°C (35°F) | 2°C (36°F) | 4°C (39°F) | 4°C (39°F) | 3°C (37°F) | 2°C (36°F) | 5°C (41°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 44% | 42% | 43% | 42% | 42% | 49% | 56% | 59% |
| Barometric pressure | 1027 hPa | 1027 hPa | 1027 hPa | 1028 hPa | 1028 hPa | 1026 hPa | 1026 hPa | 1026 hPa |
| Cloud cover | 5% | 7% | 0% | 0% | 3% | 3% | 0% | 1% |
| Heat index | 4°C (39°F) | 4°C (39°F) | 4°C (38°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 2°C (36°F) | 6°C (42°F) |
| Dew point | -7°C (19°F) | -8°C (18°F) | -8°C (18°F) | -8°C (18°F) | -8°C (17°F) | -6°C (22°F) | -6°C (22°F) | -2°C (29°F) |
| Wind | ||||||||
| Speed | 12km/h (8mph) | 9km/h (5mph) | 6km/h (4mph) | 3km/h (2mph) | 1km/h (1mph) | 5km/h (3mph) | 2km/h (1mph) | 4km/h (2mph) |
| Gusts | 18km/h (11mph) | 13km/h (8mph) | 9km/h (6mph) | 4km/h (2mph) | 2km/h (2mph) | 9km/h (6mph) | 5km/h (3mph) | 6km/h (4mph) |
| Direction | 335° NNW | 341° NNW | 355° N | 42° NE | 213° SSW | 266° W | 247° WSW | 141° SE |
| Wind chill | 1°C (34°F) | 2°C (35°F) | 2°C (36°F) | 4°C (39°F) | 4°C (39°F) | 3°C (37°F) | 2°C (36°F) | 5°C (41°F) |
| Waves | ||||||||
| Height | 0.2m (0.6ft) | 0.1m (0.4ft) | 0.4m (1.3ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.4m (1.4ft) | 0.6m (2.0ft) | 0.1m (0.3ft) |
| Direction | 319° NW | 281° W | 278° W | 270° W | 264° W | 262° W | 260° W | 260° W |
| Period | 3.8 sec. | 3.5 sec. | 3.3 sec. | 3.1 sec. | 3.1 sec. | 3.1 sec. | 3.1 sec. | 3.1 sec. |
| Significant height | 0.3m (1ft) | 0.2m (0.7ft) | 0.2m (0.7ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.1m (0.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 07:43 and will set at 17:18 on the beach(es) of Ansan-si. The outside temperature will be a high of 47°F t and a low of 40°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 7.5mph km/h (with gusts up to 13.7mph). Wave height will be up to 1.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 5°C (42°F) | 5°C (41°F) | 5°C (40°F) | 5°C (40°F) | 4°C (40°F) | 5°C (41°F) | 5°C (40°F) | 8°C (46°F) |
| Perceived temperature | 4°C (39°F) | 3°C (37°F) | 2°C (36°F) | 2°C (36°F) | 2°C (36°F) | 2°C (36°F) | 2°C (36°F) | 5°C (42°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 61% | 59% | 55% | 51% | 45% | 43% | 49% | 50% |
| Barometric pressure | 1026 hPa | 1026 hPa | 1025 hPa | 1025 hPa | 1024 hPa | 1022 hPa | 1022 hPa | 1022 hPa |
| Cloud cover | 2% | 32% | 0% | 0% | 1% | 0% | 0% | 0% |
| Heat index | 5°C (42°F) | 5°C (41°F) | 5°C (40°F) | 5°C (40°F) | 4°C (40°F) | 5°C (41°F) | 5°C (40°F) | 8°C (46°F) |
| Dew point | -2°C (29°F) | -2°C (28°F) | -4°C (26°F) | -5°C (24°F) | -7°C (20°F) | -6°C (20°F) | -5°C (23°F) | -2°C (28°F) |
| Wind | ||||||||
| Speed | 6km/h (4mph) | 8km/h (5mph) | 9km/h (5mph) | 10km/h (6mph) | 8km/h (5mph) | 10km/h (6mph) | 10km/h (6mph) | 12km/h (7mph) |
| Gusts | 10km/h (6mph) | 12km/h (7mph) | 13km/h (8mph) | 15km/h (9mph) | 16km/h (10mph) | 22km/h (14mph) | 20km/h (13mph) | 19km/h (12mph) |
| Direction | 117° ESE | 99° E | 100° E | 116° ESE | 143° SE | 156° SSE | 151° SSE | 133° SE |
| Wind chill | 4°C (39°F) | 3°C (37°F) | 2°C (36°F) | 2°C (36°F) | 2°C (36°F) | 2°C (36°F) | 2°C (36°F) | 5°C (42°F) |
| Waves | ||||||||
| Height | 0.3m (0.8ft) | 0.3m (1.0ft) | 0.5m (1.7ft) | 0.5m (1.8ft) | 0.1m (0.5ft) | 0.1m (0.5ft) | 0.2m (0.5ft) | 0.2m (0.6ft) |
| Direction | 258° WSW | 258° WSW | 263° W | 269° W | 173° S | 193° SSW | 214° SW | 216° SW |
| Period | 3.1 sec. | 3.1 sec. | 3.1 sec. | 3.1 sec. | 3.6 sec. | 3.7 sec. | 3.7 sec. | 3.7 sec. |
| Significant height | 0.2m (0.7ft) | 0.2m (0.7ft) | 0.2m (0.7ft) | 0.3m (1ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 07:44 and will set at 17:19 on the beach(es) of Ansan-si. The outside temperature will be a high of 50°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 8.1mph km/h (with gusts up to 13.7mph). Wave height will be up to 1ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | |  | | |
| Outside temperature | 7°C (45°F) | 8°C (46°F) | 7°C (45°F) | 7°C (45°F) | 9°C (47°F) | 10°C (50°F) | 10°C (49°F) | 10°C (49°F) |
| Perceived temperature | 5°C (41°F) | 5°C (42°F) | 5°C (41°F) | 5°C (41°F) | 7°C (44°F) | 9°C (49°F) | 8°C (47°F) | 9°C (48°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 50% | 50% | 58% | 65% | 64% | 70% | 70% | 80% |
| Barometric pressure | 1022 hPa | 1021 hPa | 1021 hPa | 1021 hPa | 1021 hPa | 1019 hPa | 1019 hPa | 1018 hPa |
| Cloud cover | 100% | 5% | 23% | 100% | 50% | 73% | 67% | 100% |
| Heat index | 7°C (45°F) | 8°C (46°F) | 7°C (45°F) | 7°C (45°F) | 9°C (47°F) | 10°C (50°F) | 10°C (49°F) | 10°C (49°F) |
| Dew point | -2°C (28°F) | -2°C (28°F) | -1°C (31°F) | 1°C (34°F) | 2°C (36°F) | 5°C (41°F) | 5°C (40°F) | 6°C (43°F) |
| Wind | ||||||||
| Speed | 11km/h (7mph) | 13km/h (8mph) | 12km/h (8mph) | 13km/h (8mph) | 11km/h (7mph) | 7km/h (4mph) | 10km/h (6mph) | 6km/h (4mph) |
| Gusts | 19km/h (12mph) | 21km/h (13mph) | 22km/h (13mph) | 21km/h (13mph) | 17km/h (11mph) | 11km/h (7mph) | 19km/h (12mph) | 12km/h (7mph) |
| Direction | 116° ESE | 107° ESE | 124° SE | 125° SE | 106° ESE | 99° E | 121° ESE | 157° SSE |
| Wind chill | 5°C (41°F) | 5°C (42°F) | 5°C (41°F) | 5°C (41°F) | 7°C (44°F) | 9°C (49°F) | 8°C (47°F) | 9°C (48°F) |
| Waves | ||||||||
| Height | 0.2m (0.7ft) | 0.3m (1.0ft) | 0.3m (1.1ft) | 0.3m (0.9ft) | 0.2m (0.7ft) | 0.1m (0.5ft) | 0.1m (0.5ft) | 0.2m (0.8ft) |
| Direction | 183° S | 172° S | 160° SSE | 153° SSE | 152° SSE | 152° SSE | 234° SW | 120° ESE |
| Period | 4.9 sec. | 5.1 sec. | 5.1 sec. | 5.2 sec. | 5.1 sec. | 5.1 sec. | 5.0 sec. | 4.9 sec. |
| Significant height | 0.5m (1.6ft) | 0.6m (2ft) | 0.6m (2ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.2m (0.7ft) | 0.4m (1.3ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) |
Sea weather on Sunday 21 December 2025
On Sunday 21 December 2025, the sun will rise at 07:45 and will set at 17:19 on the beach(es) of Ansan-si. The outside temperature will be a high of 49°F t and a low of 36°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 21.1mph km/h (with gusts up to 29.2mph). Wave height will be up to 2.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | |  |
| Outside temperature | 9°C (49°F) | 8°C (47°F) | 7°C (44°F) | 6°C (42°F) | 5°C (41°F) | 5°C (42°F) | 4°C (38°F) | 2°C (35°F) |
| Perceived temperature | 8°C (47°F) | 5°C (42°F) | 3°C (37°F) | 1°C (34°F) | 0°C (33°F) | 1°C (33°F) | -2°C (28°F) | -5°C (23°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 92% | 91% | 74% | 59% | 53% | 49% | 53% | 60% |
| Barometric pressure | 1017 hPa | 1017 hPa | 1017 hPa | 1018 hPa | 1018 hPa | 1018 hPa | 1019 hPa | 1020 hPa |
| Cloud cover | 100% | 93% | 9% | 32% | 87% | 100% | 41% | 87% |
| Heat index | 9°C (49°F) | 8°C (47°F) | 7°C (44°F) | 6°C (42°F) | 5°C (41°F) | 5°C (42°F) | 4°C (38°F) | 2°C (35°F) |
| Dew point | 8°C (46°F) | 7°C (44°F) | 3°C (37°F) | -2°C (29°F) | -3°C (26°F) | -5°C (24°F) | -5°C (23°F) | -5°C (23°F) |
| Wind | ||||||||
| Speed | 6km/h (4mph) | 19km/h (12mph) | 28km/h (17mph) | 26km/h (16mph) | 28km/h (18mph) | 30km/h (19mph) | 33km/h (20mph) | 34km/h (21mph) |
| Gusts | 10km/h (7mph) | 28km/h (18mph) | 37km/h (23mph) | 34km/h (21mph) | 37km/h (23mph) | 40km/h (25mph) | 47km/h (29mph) | 43km/h (26mph) |
| Direction | 321° NW | 305° NW | 320° NW | 316° NW | 311° NW | 305° NW | 312° NW | 314° NW |
| Wind chill | 8°C (47°F) | 5°C (42°F) | 3°C (37°F) | 1°C (34°F) | 0°C (33°F) | 1°C (33°F) | -2°C (28°F) | -5°C (23°F) |
| Waves | ||||||||
| Height | 0.3m (1.0ft) | 0.4m (1.2ft) | 0.4m (1.5ft) | 0.6m (1.8ft) | 0.7m (2.2ft) | 0.8m (2.5ft) | 0.7m (2.4ft) | 0.7m (2.3ft) |
| Direction | 129° SE | 165° SSE | 195° SSW | 259° WSW | 273° W | 273° W | 279° W | 286° WNW |
| Period | 4.7 sec. | 4.7 sec. | 4.7 sec. | 4.7 sec. | 4.7 sec. | 4.7 sec. | 4.7 sec. | 4.7 sec. |
| Significant height | 0.6m (2ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 1.0m (3.3ft) | 1.2m (3.9ft) | 1.4m (4.6ft) | 1.2m (3.9ft) | 1.2m (3.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |