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
Sunday 14 December 202541°F to 54°Fnot recommended
Monday 15 December 202545°F to 49°Fnot recommended
Tuesday 16 December 202545°F to 52°Fnot recommended
Wednesday 17 December 202540°F to 45°Fdiscouraged
Thursday 18 December 202538°F to 45°Fdiscouraged
Friday 19 December 202543°F to 50°Frecommended
Saturday 20 December 202549°F to 56°Frecommended

Sea Weather: Your daily and hourly sea weather in Nagaoka

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:52 and will set at 16:28 on the beach(es) of Nagaoka. The outside temperature will be a high of 54°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! Be careful, the sea will be generally rough with a wind speed of up to 47.9mph km/h (with gusts up to 58.4mph). Wave height will be up to 16.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (41°F)5°C (42°F)5°C (41°F)6°C (43°F)9°C (48°F)11°C (52°F)10°C (50°F)9°C (49°F)
Perceived temperature1°C (34°F)1°C (34°F)2°C (36°F)3°C (37°F)6°C (42°F)6°C (43°F)4°C (40°F)4°C (38°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity63%64%78%90%86%66%66%75%
Barometric pressure1016 hPa1012 hPa1008 hPa1004 hPa1001 hPa1000 hPa1002 hPa1001 hPa
Cloud cover83%48%100%67%100%84%100%90%
Heat index5°C (41°F)5°C (42°F)5°C (41°F)6°C (43°F)9°C (48°F)11°C (52°F)10°C (50°F)9°C (49°F)
Dew point-2°C (29°F)-1°C (31°F)2°C (35°F)5°C (40°F)7°C (44°F)5°C (41°F)4°C (39°F)5°C (41°F)
Wind
Speed17km/h (11mph)25km/h (16mph)13km/h (8mph)15km/h (10mph)25km/h (15mph)66km/h (41mph)72km/h (45mph)77km/h (48mph)
Gusts23km/h (14mph)33km/h (20mph)18km/h (11mph)21km/h (13mph)36km/h (22mph)70km/h (44mph)79km/h (49mph)94km/h (58mph)
Direction 107°
ESE
73°
ENE
53°
NE
79°
ENE
216°
SW
264°
W
261°
W
247°
WSW
Wind chill1°C (34°F)1°C (34°F)2°C (36°F)3°C (37°F)6°C (42°F)6°C (43°F)4°C (40°F)4°C (38°F)
Waves
Height0.8m (2.8ft)0.7m (2.3ft)0.6m (2.1ft)0.5m (1.7ft)1.1m (3.7ft)3.2m (10.4ft)4.2m (13.7ft)5.1m (16.9ft)
Direction 327°
NNW
323°
NW
328°
NNW
324°
NW
239°
WSW
265°
W
273°
W
274°
W
Period7.1 sec.6.8 sec.6.7 sec.6.2 sec.7.2 sec.7.3 sec.7.3 sec.9.1 sec.
Significant height1.1m (3.6ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)2.5m (8.2ft)3.0m (9.8ft)3.3m (10.8ft)3.7m (12.1ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

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 49°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 38.5mph km/h (with gusts up to 41mph). Wave height will be up to 17.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)9°C (47°F)8°C (47°F)8°C (46°F)7°C (45°F)8°C (46°F)7°C (45°F)8°C (46°F)
Perceived temperature4°C (38°F)3°C (37°F)3°C (37°F)3°C (37°F)1°C (35°F)3°C (37°F)3°C (37°F)4°C (39°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%78%73%67%68%60%61%59%
Barometric pressure1005 hPa1009 hPa1013 hPa1016 hPa1018 hPa1020 hPa1022 hPa1023 hPa
Cloud cover100%100%100%100%96%85%89%94%
Heat index9°C (48°F)9°C (47°F)8°C (47°F)8°C (46°F)7°C (45°F)8°C (46°F)7°C (45°F)8°C (46°F)
Dew point5°C (42°F)5°C (41°F)4°C (38°F)2°C (36°F)1°C (35°F)0°C (33°F)0°C (32°F)0°C (32°F)
Wind
Speed62km/h (39mph)59km/h (37mph)51km/h (32mph)48km/h (30mph)48km/h (30mph)44km/h (27mph)35km/h (21mph)27km/h (17mph)
Gusts64km/h (40mph)66km/h (41mph)53km/h (33mph)54km/h (33mph)64km/h (40mph)47km/h (29mph)47km/h (29mph)36km/h (22mph)
Direction 297°
WNW
309°
NW
309°
NW
300°
WNW
289°
WNW
289°
WNW
293°
WNW
291°
WNW
Wind chill4°C (38°F)3°C (37°F)3°C (37°F)3°C (37°F)1°C (35°F)3°C (37°F)3°C (37°F)4°C (39°F)
Waves
Height5.3m (17.4ft)5.4m (17.6ft)5.3m (17.5ft)4.5m (14.8ft)3.8m (12.6ft)3.4m (11.0ft)2.9m (9.4ft)2.4m (7.9ft)
Direction 284°
WNW
288°
WNW
302°
WNW
310°
NW
313°
NW
309°
NW
315°
NW
318°
NW
Period9.7 sec.10.5 sec.11.2 sec.10.7 sec.10.8 sec.10.6 sec.8.9 sec.10.1 sec.
Significant height3.1m (10.2ft)2.5m (8.2ft)2.3m (7.5ft)2.1m (6.9ft)2.0m (6.6ft)1.7m (5.6ft)1.2m (3.9ft)1.4m (4.6ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°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 8.9ft 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)8°C (46°F)10°C (50°F)11°C (51°F)11°C (51°F)9°C (47°F)
Perceived temperature5°C (40°F)5°C (41°F)4°C (39°F)4°C (39°F)6°C (43°F)6°C (43°F)7°C (44°F)5°C (41°F)
Precipitation0in0in0in0in0in0in0in0.1in
Humidity58%61%65%65%58%75%69%83%
Barometric pressure1022 hPa1022 hPa1022 hPa1021 hPa1019 hPa1018 hPa1019 hPa1019 hPa
Cloud cover86%87%72%74%89%100%64%100%
Heat index8°C (46°F)8°C (46°F)7°C (45°F)8°C (46°F)10°C (50°F)11°C (51°F)11°C (51°F)9°C (47°F)
Dew point0°C (33°F)1°C (34°F)1°C (34°F)1°C (35°F)2°C (35°F)6°C (43°F)5°C (41°F)6°C (43°F)
Wind
Speed22km/h (14mph)19km/h (12mph)20km/h (13mph)24km/h (15mph)31km/h (19mph)46km/h (28mph)40km/h (25mph)27km/h (17mph)
Gusts29km/h (18mph)25km/h (15mph)28km/h (17mph)31km/h (19mph)41km/h (25mph)62km/h (39mph)47km/h (29mph)32km/h (20mph)
Direction 274°
W
244°
WSW
222°
SW
200°
SSW
228°
SW
254°
WSW
267°
W
336°
NNW
Wind chill5°C (40°F)5°C (41°F)4°C (39°F)4°C (39°F)6°C (43°F)6°C (43°F)7°C (44°F)5°C (41°F)
Waves
Height2.0m (6.7ft)1.7m (5.7ft)1.5m (5.1ft)1.4m (4.6ft)1.5m (5.0ft)2.4m (7.9ft)2.7m (8.8ft)2.1m (6.9ft)
Direction 320°
NW
324°
NW
322°
NW
327°
NNW
293°
WNW
281°
WNW
289°
WNW
298°
WNW
Period9.0 sec.8.8 sec.8.2 sec.7.7 sec.9.1 sec.8.6 sec.9.1 sec.9.1 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.8m (2.6ft)1.4m (4.6ft)2.1m (6.9ft)1.9m (6.2ft)1.1m (3.6ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°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 45°F t and a low of 40°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 14.3mph km/h (with gusts up to 18mph). Wave height will be up to 6.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (45°F)6°C (42°F)5°C (41°F)5°C (41°F)5°C (41°F)4°C (40°F)4°C (39°F)4°C (39°F)
Perceived temperature4°C (38°F)3°C (37°F)3°C (37°F)4°C (38°F)1°C (34°F)1°C (33°F)1°C (34°F)3°C (37°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%92%90%94%94%94%96%89%
Barometric pressure1020 hPa1021 hPa1022 hPa1023 hPa1021 hPa1022 hPa1024 hPa1025 hPa
Cloud cover100%100%100%100%100%100%100%94%
Heat index7°C (45°F)6°C (42°F)5°C (41°F)5°C (41°F)5°C (41°F)4°C (40°F)4°C (39°F)4°C (39°F)
Dew point5°C (40°F)4°C (40°F)3°C (38°F)4°C (39°F)4°C (39°F)4°C (38°F)3°C (38°F)2°C (36°F)
Wind
Speed23km/h (14mph)13km/h (8mph)8km/h (5mph)6km/h (4mph)19km/h (12mph)17km/h (11mph)12km/h (8mph)6km/h (4mph)
Gusts29km/h (18mph)18km/h (11mph)11km/h (7mph)8km/h (5mph)25km/h (15mph)23km/h (15mph)18km/h (11mph)8km/h (5mph)
Direction 343°
NNW
349°
NNW
356°
N
68°
ENE
40°
NE
26°
NNE
13°
NNE

N
Wind chill4°C (38°F)3°C (37°F)3°C (37°F)4°C (38°F)1°C (34°F)1°C (33°F)1°C (34°F)3°C (37°F)
Waves
Height2.0m (6.4ft)1.7m (5.6ft)1.6m (5.3ft)1.5m (5.0ft)1.6m (5.1ft)1.6m (5.2ft)1.4m (4.8ft)1.3m (4.4ft)
Direction 301°
WNW
306°
NW
314°
NW
313°
NW
321°
NW
323°
NW
322°
NW
323°
NW
Period9.1 sec.6.7 sec.7.1 sec.7.2 sec.8.1 sec.8.5 sec.8.4 sec.8.3 sec.
Significant height1.2m (3.9ft)0.8m (2.6ft)0.8m (2.6ft)0.5m (1.6ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.1m (0.3ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°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 8.1mph km/h (with gusts up to 11.8mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (40°F)5°C (41°F)5°C (42°F)6°C (42°F)6°C (43°F)6°C (42°F)3°C (38°F)7°C (44°F)
Perceived temperature5°C (40°F)4°C (40°F)5°C (40°F)6°C (42°F)6°C (43°F)5°C (42°F)1°C (34°F)4°C (39°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%75%70%62%55%53%57%61%
Barometric pressure1025 hPa1026 hPa1027 hPa1028 hPa1027 hPa1027 hPa1028 hPa1028 hPa
Cloud cover79%97%75%89%19%4%1%4%
Heat index5°C (40°F)5°C (41°F)5°C (42°F)6°C (42°F)6°C (43°F)6°C (42°F)3°C (38°F)7°C (44°F)
Dew point1°C (34°F)1°C (34°F)0°C (33°F)-1°C (30°F)-2°C (28°F)-3°C (26°F)-5°C (24°F)-0°C (31°F)
Wind
Speed2km/h (1mph)4km/h (3mph)5km/h (3mph)1km/h (0mph)3km/h (2mph)4km/h (2mph)8km/h (5mph)13km/h (8mph)
Gusts3km/h (2mph)6km/h (4mph)6km/h (4mph)1km/h (1mph)4km/h (2mph)6km/h (4mph)17km/h (10mph)19km/h (11mph)
Direction 286°
WNW
270°
W
343°
NNW
352°
N
357°
N
46°
NE
72°
ENE
87°
E
Wind chill5°C (40°F)4°C (40°F)5°C (40°F)6°C (42°F)6°C (43°F)5°C (42°F)1°C (34°F)4°C (39°F)
Waves
Height1.3m (4.1ft)1.2m (4.0ft)1.1m (3.7ft)1.1m (3.5ft)1.0m (3.3ft)1.0m (3.1ft)0.9m (2.9ft)0.8m (2.6ft)
Direction 323°
NW
322°
NW
322°
NW
322°
NW
322°
NW
322°
NW
322°
NW
323°
NW
Period8.3 sec.8.3 sec.8.2 sec.8.1 sec.8.0 sec.7.7 sec.7.5 sec.7.4 sec.
Significant height0.7m (2.3ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)1.1m (3.6ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°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 6.8mph km/h (with gusts up to 10.6mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (43°F)6°C (42°F)6°C (42°F)7°C (45°F)9°C (48°F)9°C (48°F)7°C (45°F)10°C (50°F)
Perceived temperature4°C (39°F)3°C (38°F)3°C (38°F)5°C (41°F)9°C (47°F)9°C (48°F)7°C (44°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%66%65%62%50%49%56%66%
Barometric pressure1027 hPa1027 hPa1027 hPa1028 hPa1026 hPa1026 hPa1026 hPa1026 hPa
Cloud cover3%4%0%3%3%0%0%0%
Heat index6°C (43°F)6°C (42°F)6°C (42°F)7°C (45°F)9°C (48°F)9°C (48°F)7°C (45°F)10°C (50°F)
Dew point0°C (32°F)-0°C (32°F)-0°C (31°F)0°C (33°F)-1°C (30°F)-1°C (29°F)-1°C (31°F)4°C (39°F)
Wind
Speed11km/h (7mph)10km/h (6mph)11km/h (7mph)11km/h (7mph)5km/h (3mph)3km/h (2mph)5km/h (3mph)8km/h (5mph)
Gusts16km/h (10mph)14km/h (9mph)17km/h (10mph)16km/h (10mph)8km/h (5mph)7km/h (4mph)11km/h (7mph)14km/h (8mph)
Direction 95°
E
119°
ESE
148°
SSE
148°
SSE
145°
SE
204°
SSW
178°
S
147°
SSE
Wind chill4°C (39°F)3°C (38°F)3°C (38°F)5°C (41°F)9°C (47°F)9°C (48°F)7°C (44°F)9°C (48°F)
Waves
Height0.7m (2.4ft)0.7m (2.2ft)0.6m (1.9ft)0.5m (1.8ft)0.5m (1.6ft)0.4m (1.5ft)0.4m (1.3ft)0.4m (1.2ft)
Direction 325°
NW
322°
NW
325°
NW
330°
NNW
326°
NNW
329°
NNW
333°
NNW
335°
NNW
Period7.0 sec.6.8 sec.6.7 sec.6.4 sec.6.2 sec.6.2 sec.6.2 sec.6.1 sec.
Significant height1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.6m (2ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°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 56°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 8.1mph km/h (with gusts up to 13.7mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (49°F)9°C (49°F)9°C (49°F)10°C (51°F)13°C (55°F)13°C (56°F)13°C (55°F)11°C (53°F)
Perceived temperature7°C (45°F)7°C (45°F)8°C (46°F)9°C (48°F)13°C (56°F)13°C (56°F)12°C (54°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity64%61%60%56%45%47%57%72%
Barometric pressure1026 hPa1026 hPa1027 hPa1026 hPa1024 hPa1024 hPa1025 hPa1026 hPa
Cloud cover0%0%10%21%44%45%65%94%
Heat index9°C (49°F)9°C (49°F)9°C (49°F)10°C (51°F)13°C (55°F)13°C (56°F)13°C (55°F)11°C (53°F)
Dew point3°C (37°F)2°C (36°F)2°C (36°F)2°C (36°F)1°C (33°F)2°C (36°F)4°C (40°F)7°C (44°F)
Wind
Speed11km/h (7mph)13km/h (8mph)11km/h (7mph)12km/h (7mph)3km/h (2mph)3km/h (2mph)6km/h (4mph)8km/h (5mph)
Gusts19km/h (12mph)22km/h (14mph)20km/h (12mph)19km/h (12mph)5km/h (3mph)4km/h (3mph)10km/h (7mph)12km/h (8mph)
Direction 145°
SE
152°
SSE
161°
SSE
129°
SE
122°
ESE
294°
WNW
69°
ENE
126°
SE
Wind chill7°C (45°F)7°C (45°F)8°C (46°F)9°C (48°F)13°C (56°F)13°C (56°F)12°C (54°F)11°C (51°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.3m (0.9ft)0.3m (1.1ft)0.5m (1.8ft)0.7m (2.2ft)0.7m (2.3ft)0.7m (2.2ft)
Direction 331°
NNW
332°
NNW
328°
NNW
302°
WNW
296°
WNW
294°
WNW
291°
WNW
289°
WNW
Period5.7 sec.5.6 sec.5.4 sec.8.0 sec.6.7 sec.6.8 sec.6.9 sec.6.9 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.8m (2.6ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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