Sea weather in Nagaoka in Japan All the beach weather in Nagaoka

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

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

Date Outside temp. Our opinion
Monday 15 December 202545°F to 50°Fnot recommended
Tuesday 16 December 202545°F to 52°Fnot recommended
Wednesday 17 December 202540°F to 47°Fdiscouraged
Thursday 18 December 202538°F to 45°Fdiscouraged
Friday 19 December 202543°F to 50°Frecommended
Saturday 20 December 202549°F to 58°Frecommended
Sunday 21 December 202554°F to 54°Frecommended

Sea Weather: Your daily and hourly sea weather in Nagaoka

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:53 and will set at 16:28 on the beach(es) of Nagaoka. The outside temperature will be a high of 50°F t and a low of 45°F. Precipitation is in the forecast (0.1in 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 37.9mph km/h (with gusts up to 41.6mph). Wave height will be up to 17.4ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (49°F)9°C (47°F)8°C (46°F)8°C (46°F)7°C (44°F)7°C (45°F)7°C (45°F)8°C (46°F)
Perceived temperature5°C (40°F)3°C (38°F)3°C (37°F)3°C (37°F)1°C (34°F)2°C (36°F)2°C (36°F)4°C (39°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%72%70%65%70%63%64%60%
Barometric pressure1005 hPa1009 hPa1013 hPa1016 hPa1018 hPa1020 hPa1022 hPa1022 hPa
Cloud cover100%100%100%100%90%95%100%99%
Heat index10°C (49°F)9°C (47°F)8°C (46°F)8°C (46°F)7°C (44°F)7°C (45°F)7°C (45°F)8°C (46°F)
Dew point4°C (40°F)4°C (39°F)3°C (37°F)2°C (35°F)2°C (35°F)1°C (33°F)1°C (33°F)0°C (33°F)
Wind
Speed61km/h (38mph)57km/h (35mph)51km/h (32mph)45km/h (28mph)48km/h (30mph)43km/h (27mph)35km/h (22mph)28km/h (17mph)
Gusts61km/h (38mph)58km/h (36mph)67km/h (42mph)48km/h (30mph)63km/h (39mph)44km/h (28mph)47km/h (29mph)37km/h (23mph)
Direction 296°
WNW
311°
NW
314°
NW
306°
NW
292°
WNW
290°
WNW
293°
WNW
290°
WNW
Wind chill5°C (40°F)3°C (38°F)3°C (37°F)3°C (37°F)1°C (34°F)2°C (36°F)2°C (36°F)4°C (39°F)
Waves
Height4.8m (15.8ft)5.3m (17.3ft)5.2m (16.9ft)4.3m (14.1ft)3.6m (11.9ft)3.2m (10.4ft)2.7m (8.9ft)2.3m (7.5ft)
Direction 286°
WNW
295°
WNW
304°
WNW
312°
NW
316°
NW
312°
NW
318°
NW
319°
NW
Period7.0 sec.7.0 sec.7.0 sec.7.0 sec.7.0 sec.10.4 sec.10.1 sec.10.3 sec.
Significant height2.9m (9.5ft)2.8m (9.2ft)2.2m (7.2ft)2.0m (6.6ft)2.0m (6.6ft)1.7m (5.6ft)1.3m (4.3ft)0.9m (3ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:53 and will set at 16:28 on the beach(es) of Nagaoka. The outside temperature will be a high of 52°F t and a low of 45°F. Precipitation is in the forecast (0.1in 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 28.6mph km/h (with gusts up to 38.5mph). Wave height will be up to 7.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)8°C (46°F)7°C (45°F)7°C (45°F)9°C (49°F)11°C (51°F)11°C (51°F)9°C (48°F)
Perceived temperature5°C (40°F)5°C (41°F)4°C (39°F)4°C (39°F)6°C (43°F)7°C (44°F)7°C (44°F)5°C (41°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity61%63%68%65%57%71%70%79%
Barometric pressure1022 hPa1022 hPa1022 hPa1021 hPa1019 hPa1018 hPa1019 hPa1020 hPa
Cloud cover100%99%100%100%71%78%100%100%
Heat index8°C (46°F)8°C (46°F)7°C (45°F)7°C (45°F)9°C (49°F)11°C (51°F)11°C (51°F)9°C (48°F)
Dew point1°C (34°F)1°C (34°F)2°C (35°F)1°C (34°F)1°C (34°F)6°C (42°F)5°C (42°F)6°C (42°F)
Wind
Speed23km/h (15mph)18km/h (11mph)16km/h (10mph)23km/h (14mph)26km/h (16mph)46km/h (29mph)40km/h (25mph)33km/h (21mph)
Gusts30km/h (19mph)24km/h (15mph)22km/h (14mph)30km/h (18mph)34km/h (21mph)62km/h (38mph)56km/h (35mph)39km/h (24mph)
Direction 278°
W
265°
W
221°
SW
201°
SSW
224°
SW
245°
WSW
268°
W
328°
NNW
Wind chill5°C (40°F)5°C (41°F)4°C (39°F)4°C (39°F)6°C (43°F)7°C (44°F)7°C (44°F)5°C (41°F)
Waves
Height2.0m (6.5ft)1.7m (5.6ft)1.5m (4.9ft)1.4m (4.5ft)1.2m (3.9ft)1.9m (6.3ft)2.3m (7.4ft)1.9m (6.3ft)
Direction 321°
NW
324°
NW
321°
NW
324°
NW
321°
NW
284°
WNW
285°
WNW
295°
WNW
Period9.8 sec.8.4 sec.8.1 sec.7.8 sec.7.3 sec.8.8 sec.8.7 sec.6.5 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)0.8m (2.6ft)0.9m (3ft)0.7m (2.3ft)1.8m (5.9ft)1.7m (5.6ft)1.1m (3.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:54 and will set at 16:29 on the beach(es) of Nagaoka. The outside temperature will be a high of 47°F t and a low of 40°F. Precipitation is in the forecast (0.1in 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 15.5mph km/h (with gusts up to 19.9mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)7°C (44°F)5°C (42°F)5°C (40°F)5°C (40°F)5°C (41°F)5°C (41°F)5°C (40°F)
Perceived temperature5°C (41°F)4°C (38°F)2°C (36°F)2°C (36°F)2°C (35°F)1°C (34°F)1°C (35°F)3°C (38°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%79%87%95%94%93%84%82%
Barometric pressure1020 hPa1021 hPa1022 hPa1023 hPa1021 hPa1022 hPa1024 hPa1024 hPa
Cloud cover100%100%100%100%100%100%100%100%
Heat index8°C (47°F)7°C (44°F)5°C (42°F)5°C (40°F)5°C (40°F)5°C (41°F)5°C (41°F)5°C (40°F)
Dew point3°C (38°F)3°C (38°F)3°C (38°F)4°C (39°F)4°C (39°F)4°C (39°F)2°C (36°F)2°C (35°F)
Wind
Speed25km/h (16mph)15km/h (9mph)14km/h (9mph)10km/h (6mph)14km/h (9mph)20km/h (12mph)15km/h (10mph)7km/h (4mph)
Gusts32km/h (20mph)19km/h (12mph)17km/h (11mph)14km/h (9mph)19km/h (12mph)26km/h (16mph)21km/h (13mph)9km/h (6mph)
Direction 333°
NNW
349°
N
355°
N
66°
ENE
39°
NE
15°
NNE
10°
N
43°
NE
Wind chill5°C (41°F)4°C (38°F)2°C (36°F)2°C (36°F)2°C (35°F)1°C (34°F)1°C (35°F)3°C (38°F)
Waves
Height1.6m (5.3ft)1.4m (4.5ft)1.3m (4.3ft)1.3m (4.3ft)1.3m (4.2ft)1.3m (4.3ft)1.3m (4.3ft)1.2m (4.0ft)
Direction 303°
WNW
308°
NW
309°
NW
317°
NW
317°
NW
317°
NW
323°
NW
324°
NW
Period6.7 sec.6.7 sec.6.5 sec.6.9 sec.7.0 sec.7.4 sec.8.1 sec.8.1 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.4m (1.3ft)0.1m (0.3ft)0.2m (0.7ft)0.4m (1.3ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:54 and will set at 16:29 on the beach(es) of Nagaoka. The outside temperature will be a high of 45°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 6.2mph km/h (with gusts up to 8.7mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (40°F)5°C (41°F)5°C (41°F)5°C (41°F)6°C (43°F)6°C (43°F)3°C (38°F)7°C (44°F)
Perceived temperature4°C (40°F)3°C (38°F)4°C (40°F)5°C (40°F)5°C (41°F)5°C (42°F)1°C (34°F)5°C (41°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%81%76%74%65%59%59%63%
Barometric pressure1025 hPa1026 hPa1028 hPa1029 hPa1027 hPa1027 hPa1027 hPa1027 hPa
Cloud cover96%100%100%53%88%10%2%0%
Heat index5°C (40°F)5°C (41°F)5°C (41°F)5°C (41°F)6°C (43°F)6°C (43°F)3°C (38°F)7°C (44°F)
Dew point2°C (36°F)2°C (36°F)1°C (35°F)1°C (34°F)-0°C (32°F)-1°C (30°F)-4°C (25°F)0°C (33°F)
Wind
Speed3km/h (2mph)8km/h (5mph)5km/h (3mph)4km/h (3mph)6km/h (4mph)5km/h (3mph)7km/h (4mph)10km/h (6mph)
Gusts4km/h (3mph)10km/h (6mph)6km/h (4mph)6km/h (4mph)8km/h (5mph)7km/h (5mph)14km/h (9mph)14km/h (9mph)
Direction 223°
SW
289°
WNW
303°
WNW
109°
ESE
111°
ESE
99°
E
99°
E
122°
ESE
Wind chill4°C (40°F)3°C (38°F)4°C (40°F)5°C (40°F)5°C (41°F)5°C (42°F)1°C (34°F)5°C (41°F)
Waves
Height1.1m (3.8ft)1.1m (3.8ft)1.2m (3.8ft)1.1m (3.7ft)1.1m (3.6ft)1.0m (3.4ft)1.0m (3.2ft)0.9m (3.0ft)
Direction 326°
NNW
326°
NW
324°
NW
324°
NW
324°
NW
323°
NW
324°
NW
326°
NNW
Period7.8 sec.7.8 sec.7.9 sec.7.9 sec.8.0 sec.7.8 sec.7.6 sec.7.4 sec.
Significant height0.5m (1.6ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)1.4m (4.6ft)1.1m (3.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 06:55 and will set at 16:29 on the beach(es) of Nagaoka. The outside temperature will be a high of 50°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 8.7mph km/h (with gusts up to 15.5mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (43°F)6°C (44°F)7°C (44°F)8°C (47°F)9°C (48°F)9°C (49°F)7°C (45°F)10°C (49°F)
Perceived temperature4°C (39°F)4°C (39°F)4°C (40°F)6°C (43°F)7°C (45°F)8°C (46°F)5°C (41°F)8°C (46°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity68%66%65%61%50%45%54%59%
Barometric pressure1026 hPa1027 hPa1027 hPa1028 hPa1026 hPa1026 hPa1026 hPa1025 hPa
Cloud cover0%0%1%10%0%0%0%0%
Heat index6°C (43°F)6°C (44°F)7°C (44°F)8°C (47°F)9°C (48°F)9°C (49°F)7°C (45°F)10°C (49°F)
Dew point1°C (34°F)1°C (33°F)1°C (33°F)1°C (34°F)-1°C (30°F)-2°C (29°F)-1°C (30°F)2°C (35°F)
Wind
Speed10km/h (6mph)12km/h (7mph)14km/h (9mph)13km/h (8mph)10km/h (6mph)10km/h (6mph)12km/h (7mph)12km/h (8mph)
Gusts16km/h (10mph)18km/h (11mph)22km/h (14mph)19km/h (12mph)19km/h (12mph)20km/h (13mph)25km/h (16mph)21km/h (13mph)
Direction 142°
SE
174°
S
184°
S
193°
SSW
187°
S
170°
S
144°
SE
138°
SE
Wind chill4°C (39°F)4°C (39°F)4°C (40°F)6°C (43°F)7°C (45°F)8°C (46°F)5°C (41°F)8°C (46°F)
Waves
Height0.8m (2.7ft)0.7m (2.4ft)0.6m (2.1ft)0.5m (1.8ft)0.5m (1.5ft)0.4m (1.3ft)0.3m (1.1ft)0.3m (1.0ft)
Direction 329°
NNW
334°
NNW
329°
NNW
334°
NNW
329°
NNW
332°
NNW
328°
NNW
329°
NNW
Period7.4 sec.6.9 sec.6.7 sec.6.3 sec.6.0 sec.5.7 sec.5.6 sec.5.4 sec.
Significant height1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.6m (2ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 06:56 and will set at 16:30 on the beach(es) of Nagaoka. The outside temperature will be a high of 58°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 8.7mph km/h (with gusts up to 15.5mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)9°C (48°F)9°C (49°F)11°C (52°F)13°C (55°F)14°C (57°F)14°C (56°F)13°C (55°F)
Perceived temperature7°C (45°F)7°C (45°F)7°C (45°F)10°C (49°F)12°C (54°F)14°C (57°F)14°C (57°F)12°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity54%53%53%53%46%46%53%61%
Barometric pressure1025 hPa1025 hPa1024 hPa1025 hPa1023 hPa1023 hPa1024 hPa1023 hPa
Cloud cover0%0%6%52%45%91%44%13%
Heat index9°C (48°F)9°C (48°F)9°C (49°F)11°C (52°F)13°C (55°F)14°C (57°F)14°C (56°F)13°C (55°F)
Dew point0°C (32°F)0°C (32°F)0°C (33°F)2°C (36°F)2°C (35°F)2°C (36°F)4°C (39°F)5°C (42°F)
Wind
Speed10km/h (6mph)12km/h (7mph)13km/h (8mph)14km/h (9mph)10km/h (6mph)5km/h (3mph)5km/h (3mph)10km/h (6mph)
Gusts17km/h (10mph)22km/h (14mph)25km/h (15mph)22km/h (14mph)16km/h (10mph)8km/h (5mph)10km/h (6mph)17km/h (11mph)
Direction 143°
SE
144°
SE
142°
SE
184°
S
163°
SSE
122°
ESE
115°
ESE
125°
SE
Wind chill7°C (45°F)7°C (45°F)7°C (45°F)10°C (49°F)12°C (54°F)14°C (57°F)14°C (57°F)12°C (53°F)
Waves
Height0.3m (0.9ft)0.2m (0.8ft)0.4m (1.4ft)0.7m (2.2ft)0.9m (2.9ft)1.0m (3.2ft)1.0m (3.4ft)1.0m (3.2ft)
Direction 311°
NW
293°
WNW
291°
WNW
289°
WNW
291°
WNW
289°
WNW
285°
WNW
281°
W
Period5.2 sec.6.8 sec.6.2 sec.6.4 sec.7.0 sec.7.4 sec.7.6 sec.7.5 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.7m (2.3ft)1.0m (3.3ft)1.2m (3.9ft)1.4m (4.6ft)0.1m (0.3ft)1.4m (4.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Sunday 21 December 2025

On Sunday 21 December 2025, the sun will rise at 06:56 and will set at 16:30 on the beach(es) of Nagaoka. The outside temperature will be a high of 54°F t and a low of 54°F. Precipitation is in the forecast (0.1in 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 9.9mph km/h (with gusts up to 15.5mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (53°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (54°F)
Perceived temperature10°C (51°F)10°C (50°F)11°C (51°F)10°C (50°F)10°C (50°F)10°C (51°F)11°C (52°F)10°C (51°F)
Precipitation0in0in0in0in0in0in0.1in0in
Humidity55%55%57%77%81%83%90%93%
Barometric pressure1021 hPa1019 hPa1018 hPa1017 hPa1013 hPa1009 hPa1009 hPa1007 hPa
Cloud cover28%47%64%80%87%76%100%77%
Heat index12°C (53°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (54°F)
Dew point3°C (38°F)3°C (37°F)4°C (39°F)8°C (46°F)9°C (47°F)9°C (49°F)10°C (51°F)11°C (52°F)
Wind
Speed12km/h (7mph)12km/h (8mph)12km/h (8mph)13km/h (8mph)16km/h (10mph)15km/h (9mph)9km/h (5mph)14km/h (9mph)
Gusts21km/h (13mph)23km/h (14mph)23km/h (14mph)22km/h (14mph)25km/h (15mph)24km/h (15mph)14km/h (9mph)22km/h (14mph)
Direction 109°
ESE
118°
ESE
107°
ESE
137°
SE
73°
ENE
51°
NE
356°
N
160°
SSE
Wind chill10°C (51°F)10°C (50°F)11°C (51°F)10°C (50°F)10°C (50°F)10°C (51°F)11°C (52°F)10°C (51°F)
Waves
Height0.9m (2.9ft)0.8m (2.6ft)0.8m (2.5ft)0.7m (2.3ft)0.6m (2.1ft)0.5m (1.8ft)0.5m (1.6ft)0.4m (1.5ft)
Direction 279°
W
284°
WNW
290°
WNW
291°
WNW
290°
WNW
289°
WNW
289°
WNW
289°
WNW
Period7.3 sec.6.8 sec.7.5 sec.7.3 sec.7.2 sec.6.9 sec.6.7 sec.6.6 sec.
Significant height1.2m (3.9ft)1.0m (3.3ft)1.1m (3.6ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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