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. Our opinion
Friday 5 December 202531°F to 38°Fnot recommended
Saturday 6 December 202538°F to 50°Fdiscouraged
Sunday 7 December 202547°F to 52°Fdiscouraged
Monday 8 December 202529°F to 47°Fdiscouraged
Tuesday 9 December 202534°F to 43°Fdiscouraged
Wednesday 10 December 202541°F to 45°Fdiscouraged
Thursday 11 December 202543°F to 49°Frecommended

Sea Weather: Your daily and hourly sea weather in Ansan-si

Sea weather on Friday 5 December 2025

On Friday 5 December 2025, the sun will rise at 07:33 and will set at 17:15 on the beach(es) of Ansan-si. The outside temperature will be a high of 38°F t and a low of 31°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 21.8mph km/h (with gusts up to 24.9mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature-1°C (31°F)-1°C (31°F)-0°C (31°F)0°C (32°F)-1°C (30°F)1°C (35°F)2°C (35°F)3°C (37°F)
Perceived temperature-8°C (18°F)-8°C (18°F)-7°C (19°F)-6°C (22°F)-6°C (20°F)-3°C (27°F)-1°C (30°F)3°C (37°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity66%58%58%56%52%52%53%53%
Barometric pressure1027 hPa1028 hPa1028 hPa1029 hPa1029 hPa1027 hPa1026 hPa1025 hPa
Cloud cover22%0%0%0%0%6%8%15%
Heat index-1°C (31°F)-1°C (31°F)-0°C (31°F)0°C (32°F)-1°C (30°F)1°C (35°F)2°C (35°F)3°C (37°F)
Dew point-6°C (21°F)-8°C (18°F)-8°C (18°F)-8°C (18°F)-9°C (15°F)-7°C (19°F)-7°C (20°F)-6°C (22°F)
Wind
Speed35km/h (21mph)34km/h (21mph)31km/h (19mph)23km/h (15mph)20km/h (13mph)17km/h (10mph)8km/h (5mph)1km/h (0mph)
Gusts40km/h (25mph)40km/h (25mph)37km/h (23mph)28km/h (18mph)37km/h (23mph)26km/h (16mph)15km/h (9mph)1km/h (1mph)
Direction 329°
NNW
326°
NW
320°
NW
334°
NNW
325°
NW
318°
NW
324°
NW
134°
SE
Wind chill-8°C (18°F)-8°C (18°F)-7°C (19°F)-6°C (22°F)-6°C (20°F)-3°C (27°F)-1°C (30°F)3°C (37°F)
Waves
Height0.7m (2.3ft)0.6m (1.9ft)0.5m (1.6ft)0.5m (1.5ft)0.4m (1.4ft)0.3m (1.0ft)0.2m (0.6ft)0.1m (0.5ft)
Direction 308°
NW
317°
NW
321°
NW
316°
NW
311°
NW
306°
NW
292°
WNW
260°
W
Period6.1 sec.6.1 sec.6.5 sec.6.4 sec.6.8 sec.5.9 sec.2.4 sec.3.5 sec.
Significant height1.3m (4.3ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)0.5m (1.6ft)0.3m (1ft)0.2m (0.7ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Saturday 6 December 2025

On Saturday 6 December 2025, the sun will rise at 07:34 and will set at 17:15 on the beach(es) of Ansan-si. The outside temperature will be a high of 50°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 16.8mph km/h (with gusts up to 25.5mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature3°C (38°F)4°C (39°F)4°C (40°F)6°C (42°F)7°C (44°F)8°C (46°F)9°C (48°F)10°C (49°F)
Perceived temperature0°C (33°F)0°C (32°F)0°C (32°F)2°C (35°F)3°C (37°F)4°C (39°F)5°C (42°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity60%65%70%70%74%77%76%76%
Barometric pressure1024 hPa1024 hPa1022 hPa1022 hPa1020 hPa1018 hPa1018 hPa1018 hPa
Cloud cover47%86%100%98%100%93%70%73%
Heat index3°C (38°F)4°C (39°F)4°C (40°F)6°C (42°F)7°C (44°F)8°C (46°F)9°C (48°F)10°C (49°F)
Dew point-4°C (25°F)-2°C (28°F)-1°C (31°F)0°C (33°F)2°C (36°F)4°C (39°F)5°C (41°F)6°C (42°F)
Wind
Speed10km/h (6mph)15km/h (9mph)19km/h (12mph)20km/h (12mph)27km/h (17mph)27km/h (17mph)26km/h (16mph)24km/h (15mph)
Gusts15km/h (9mph)21km/h (13mph)26km/h (16mph)27km/h (17mph)37km/h (23mph)41km/h (26mph)29km/h (18mph)40km/h (25mph)
Direction 158°
SSE
168°
SSE
167°
SSE
187°
S
195°
SSW
203°
SSW
241°
WSW
249°
WSW
Wind chill0°C (33°F)0°C (32°F)0°C (32°F)2°C (35°F)3°C (37°F)4°C (39°F)5°C (42°F)7°C (44°F)
Waves
Height0.1m (0.5ft)0.3m (0.9ft)0.5m (1.6ft)0.6m (2.0ft)0.7m (2.4ft)0.8m (2.7ft)0.8m (2.5ft)0.7m (2.4ft)
Direction 258°
WSW
250°
WSW
241°
WSW
234°
SW
230°
SW
231°
SW
234°
SW
239°
WSW
Period3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.
Significant height0.4m (1.3ft)0.5m (1.6ft)0.8m (2.6ft)1.0m (3.3ft)1.2m (3.9ft)1.3m (4.3ft)1.1m (3.6ft)1.1m (3.6ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Sunday 7 December 2025

On Sunday 7 December 2025, the sun will rise at 07:35 and will set at 17:15 on the beach(es) of Ansan-si. The outside temperature will be a high of 52°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 19.3mph km/h (with gusts up to 29.8mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (49°F)9°C (48°F)9°C (47°F)9°C (48°F)10°C (49°F)11°C (52°F)10°C (49°F)9°C (48°F)
Perceived temperature6°C (43°F)6°C (42°F)6°C (42°F)6°C (44°F)7°C (44°F)8°C (46°F)6°C (43°F)5°C (41°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity70%69%71%67%58%63%63%51%
Barometric pressure1019 hPa1019 hPa1020 hPa1021 hPa1021 hPa1019 hPa1020 hPa1022 hPa
Cloud cover2%7%20%0%5%33%53%88%
Heat index9°C (49°F)9°C (48°F)9°C (47°F)9°C (48°F)10°C (49°F)11°C (52°F)10°C (49°F)9°C (48°F)
Dew point4°C (39°F)3°C (38°F)4°C (38°F)3°C (38°F)2°C (35°F)4°C (40°F)3°C (38°F)-1°C (31°F)
Wind
Speed23km/h (14mph)21km/h (13mph)21km/h (13mph)17km/h (10mph)21km/h (13mph)27km/h (17mph)31km/h (19mph)30km/h (19mph)
Gusts36km/h (22mph)32km/h (20mph)33km/h (21mph)26km/h (16mph)34km/h (21mph)40km/h (25mph)48km/h (30mph)43km/h (27mph)
Direction 273°
W
275°
W
275°
W
266°
W
243°
WSW
244°
WSW
281°
W
303°
WNW
Wind chill6°C (43°F)6°C (42°F)6°C (42°F)6°C (44°F)7°C (44°F)8°C (46°F)6°C (43°F)5°C (41°F)
Waves
Height0.5m (1.8ft)0.5m (1.7ft)0.5m (1.5ft)0.4m (1.2ft)0.4m (1.4ft)0.5m (1.5ft)0.5m (1.8ft)0.6m (2.0ft)
Direction 260°
W
262°
W
265°
W
266°
W
260°
W
247°
WSW
259°
WSW
274°
W
Period3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.5m (1.6ft)0.7m (2.3ft)0.7m (2.3ft)0.9m (3ft)1.1m (3.6ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Monday 8 December 2025

On Monday 8 December 2025, the sun will rise at 07:36 and will set at 17:15 on the beach(es) of Ansan-si. The outside temperature will be a high of 47°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 21.8mph km/h (with gusts up to 29.2mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)6°C (43°F)4°C (39°F)3°C (37°F)1°C (34°F)1°C (34°F)-1°C (31°F)2°C (35°F)
Perceived temperature4°C (38°F)1°C (34°F)-2°C (29°F)-2°C (28°F)-5°C (24°F)-5°C (24°F)-7°C (19°F)-4°C (25°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity48%49%59%60%53%37%39%43%
Barometric pressure1023 hPa1026 hPa1027 hPa1029 hPa1029 hPa1029 hPa1030 hPa1031 hPa
Cloud cover19%33%15%0%0%0%0%0%
Heat index8°C (46°F)6°C (43°F)4°C (39°F)3°C (37°F)1°C (34°F)1°C (34°F)-1°C (31°F)2°C (35°F)
Dew point-2°C (28°F)-4°C (25°F)-4°C (25°F)-4°C (25°F)-7°C (19°F)-12°C (11°F)-13°C (9°F)-10°C (15°F)
Wind
Speed35km/h (22mph)33km/h (20mph)30km/h (19mph)27km/h (17mph)28km/h (17mph)28km/h (17mph)28km/h (18mph)24km/h (15mph)
Gusts47km/h (30mph)43km/h (27mph)38km/h (24mph)34km/h (21mph)33km/h (20mph)31km/h (19mph)31km/h (19mph)31km/h (19mph)
Direction 302°
WNW
317°
NW
328°
NNW
327°
NNW
321°
NW
323°
NW
337°
NNW
340°
NNW
Wind chill4°C (38°F)1°C (34°F)-2°C (29°F)-2°C (28°F)-5°C (24°F)-5°C (24°F)-7°C (19°F)-4°C (25°F)
Waves
Height0.7m (2.2ft)0.7m (2.2ft)0.5m (1.7ft)0.5m (1.6ft)0.5m (1.5ft)0.5m (1.7ft)0.6m (1.8ft)0.5m (1.6ft)
Direction 290°
WNW
307°
NW
318°
NW
314°
NW
312°
NW
300°
WNW
314°
NW
330°
NNW
Period3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.3.5 sec.
Significant height1.2m (3.9ft)1.2m (3.9ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)1.0m (3.3ft)1.1m (3.6ft)0.9m (3ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Tuesday 9 December 2025

On Tuesday 9 December 2025, the sun will rise at 07:36 and will set at 17:16 on the beach(es) of Ansan-si. The outside temperature will be a high of 43°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 12.4mph km/h (with gusts up to 16.2mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature2°C (35°F)2°C (35°F)1°C (34°F)2°C (35°F)4°C (39°F)6°C (42°F)6°C (42°F)6°C (42°F)
Perceived temperature-3°C (26°F)-3°C (27°F)-2°C (29°F)2°C (35°F)3°C (37°F)4°C (39°F)4°C (39°F)6°C (42°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity41%41%39%38%48%57%58%55%
Barometric pressure1031 hPa1031 hPa1030 hPa1031 hPa1031 hPa1029 hPa1030 hPa1029 hPa
Cloud cover0%0%2%1%58%62%42%0%
Heat index2°C (35°F)2°C (35°F)1°C (34°F)2°C (35°F)4°C (39°F)6°C (42°F)6°C (42°F)6°C (42°F)
Dew point-10°C (14°F)-10°C (14°F)-11°C (12°F)-11°C (12°F)-6°C (21°F)-2°C (28°F)-2°C (29°F)-3°C (27°F)
Wind
Speed20km/h (13mph)18km/h (11mph)10km/h (6mph)3km/h (2mph)5km/h (3mph)9km/h (5mph)9km/h (6mph)2km/h (1mph)
Gusts26km/h (16mph)24km/h (15mph)14km/h (8mph)4km/h (3mph)7km/h (4mph)12km/h (8mph)14km/h (9mph)3km/h (2mph)
Direction 343°
NNW
346°
NNW
11°
N
95°
E
219°
SW
261°
W
273°
W
291°
WNW
Wind chill-3°C (26°F)-3°C (27°F)-2°C (29°F)2°C (35°F)3°C (37°F)4°C (39°F)4°C (39°F)6°C (42°F)
Waves
Height0.4m (1.4ft)0.3m (1.0ft)0.2m (0.7ft)0.1m (0.4ft)0.1m (0.5ft)0.5m (1.7ft)0.4m (1.2ft)0.3m (1.1ft)
Direction 329°
NNW
338°
NNW
334°
NNW
314°
NW
261°
W
259°
W
259°
WSW
261°
W
Period3.5 sec.3.5 sec.3.7 sec.3.4 sec.3.3 sec.4.1 sec.3.8 sec.3.8 sec.
Significant height0.8m (2.6ft)0.6m (2ft)0.4m (1.3ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Wednesday 10 December 2025

On Wednesday 10 December 2025, the sun will rise at 07:37 and will set at 17:16 on the beach(es) of Ansan-si. The outside temperature will be a high of 45°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 6.8mph km/h (with gusts up to 9.3mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (42°F)5°C (41°F)5°C (41°F)5°C (41°F)6°C (43°F)7°C (45°F)7°C (44°F)7°C (45°F)
Perceived temperature5°C (41°F)3°C (37°F)3°C (37°F)2°C (36°F)4°C (39°F)6°C (43°F)6°C (43°F)6°C (42°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity58%64%66%67%65%64%67%68%
Barometric pressure1029 hPa1029 hPa1028 hPa1028 hPa1027 hPa1026 hPa1026 hPa1026 hPa
Cloud cover0%100%7%25%100%100%100%100%
Heat index5°C (42°F)5°C (41°F)5°C (41°F)5°C (41°F)6°C (43°F)7°C (45°F)7°C (44°F)7°C (45°F)
Dew point-2°C (28°F)-1°C (30°F)-1°C (30°F)-1°C (31°F)-0°C (32°F)1°C (33°F)1°C (34°F)1°C (35°F)
Wind
Speed4km/h (2mph)9km/h (5mph)9km/h (5mph)11km/h (7mph)9km/h (6mph)6km/h (4mph)5km/h (3mph)7km/h (4mph)
Gusts6km/h (4mph)13km/h (8mph)13km/h (8mph)15km/h (9mph)13km/h (8mph)9km/h (6mph)8km/h (5mph)10km/h (6mph)
Direction 149°
SSE
130°
SE
146°
SE
147°
SSE
176°
S
212°
SSW
198°
SSW
183°
S
Wind chill5°C (41°F)3°C (37°F)3°C (37°F)2°C (36°F)4°C (39°F)6°C (43°F)6°C (43°F)6°C (42°F)
Waves
Height0.3m (1.0ft)0.1m (0.4ft)0.4m (1.4ft)0.4m (1.5ft)0.1m (0.5ft)0.1m (0.4ft)0.1m (0.4ft)0.3m (1.0ft)
Direction 262°
W
261°
W
260°
W
258°
WSW
151°
SSE
157°
SSE
167°
SSE
179°
S
Period3.4 sec.3.3 sec.3.2 sec.3.0 sec.3.0 sec.2.0 sec.2.0 sec.2.0 sec.
Significant height0.1m (0.3ft)0.2m (0.7ft)0.1m (0.3ft)0.3m (1ft)0.3m (1ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Thursday 11 December 2025

On Thursday 11 December 2025, the sun will rise at 07:38 and will set at 17:16 on the beach(es) of Ansan-si. The outside temperature will be a high of 49°F t and a low of 43°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 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (44°F)7°C (44°F)6°C (43°F)7°C (44°F)8°C (46°F)8°C (47°F)8°C (47°F)9°C (48°F)
Perceived temperature6°C (42°F)6°C (42°F)5°C (40°F)4°C (40°F)7°C (45°F)8°C (47°F)7°C (45°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%70%72%73%65%63%71%77%
Barometric pressure1025 hPa1026 hPa1026 hPa1026 hPa1026 hPa1026 hPa1027 hPa1028 hPa
Cloud cover100%21%57%57%10%14%33%88%
Heat index7°C (44°F)7°C (44°F)6°C (43°F)7°C (44°F)8°C (46°F)8°C (47°F)8°C (47°F)9°C (48°F)
Dew point2°C (35°F)2°C (35°F)2°C (35°F)2°C (36°F)1°C (34°F)2°C (35°F)4°C (38°F)5°C (41°F)
Wind
Speed7km/h (4mph)6km/h (4mph)7km/h (4mph)10km/h (6mph)5km/h (3mph)4km/h (3mph)8km/h (5mph)12km/h (8mph)
Gusts10km/h (6mph)9km/h (6mph)11km/h (7mph)15km/h (10mph)7km/h (5mph)7km/h (4mph)13km/h (8mph)18km/h (11mph)
Direction 162°
SSE
133°
SE
94°
E
105°
ESE
113°
ESE
301°
WNW
292°
WNW
309°
NW
Wind chill6°C (42°F)6°C (42°F)5°C (40°F)4°C (40°F)7°C (45°F)8°C (47°F)7°C (45°F)7°C (44°F)
Waves
Height0.3m (0.9ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.5ft)0.1m (0.3ft)0.1m (0.5ft)0.5m (1.8ft)0.1m (0.3ft)
Direction 180°
S
266°
W
262°
W
256°
WSW
250°
WSW
246°
WSW
244°
WSW
242°
WSW
Period2.0 sec.2.0 sec.3.7 sec.3.8 sec.3.9 sec.4.0 sec.4.1 sec.4.1 sec.
Significant height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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