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
Saturday 13 December 202540°F to 43°Fdiscouraged
Sunday 14 December 202541°F to 52°Fnot recommended
Monday 15 December 202545°F to 49°Fnot recommended
Tuesday 16 December 202543°F to 52°Fnot recommended
Wednesday 17 December 202540°F to 41°Fdiscouraged
Thursday 18 December 202541°F to 45°Fdiscouraged
Friday 19 December 202541°F to 47°Frecommended

Sea Weather: Your daily and hourly sea weather in Nagaoka

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 06:51 and will set at 16:27 on the beach(es) of Nagaoka. The outside temperature will be a high of 43°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 16.8mph km/h (with gusts up to 21.1mph). Wave height will be up to 6.9ft 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)4°C (40°F)5°C (41°F)6°C (42°F)6°C (43°F)6°C (42°F)
Perceived temperature-0°C (31°F)1°C (33°F)2°C (36°F)4°C (40°F)4°C (38°F)4°C (38°F)2°C (36°F)2°C (35°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity70%66%66%71%65%59%60%67%
Barometric pressure1030 hPa1030 hPa1030 hPa1030 hPa1028 hPa1026 hPa1023 hPa1020 hPa
Cloud cover100%100%68%83%54%60%92%71%
Heat index5°C (40°F)5°C (41°F)5°C (41°F)4°C (40°F)5°C (41°F)6°C (42°F)6°C (43°F)6°C (42°F)
Dew point-0°C (31°F)-1°C (30°F)-1°C (30°F)-0°C (31°F)-1°C (30°F)-2°C (29°F)-1°C (30°F)0°C (32°F)
Wind
Speed27km/h (17mph)21km/h (13mph)12km/h (7mph)2km/h (1mph)7km/h (4mph)10km/h (6mph)19km/h (12mph)20km/h (13mph)
Gusts34km/h (21mph)28km/h (18mph)15km/h (10mph)2km/h (1mph)9km/h (6mph)15km/h (9mph)27km/h (17mph)28km/h (17mph)
Direction 316°
NW
321°
NW
322°
NW
173°
S
129°
SE
93°
E
83°
E
89°
E
Wind chill-0°C (31°F)1°C (33°F)2°C (36°F)4°C (40°F)4°C (38°F)4°C (38°F)2°C (36°F)2°C (35°F)
Waves
Height2.1m (7.1ft)1.9m (6.2ft)1.7m (5.5ft)1.5m (4.9ft)1.3m (4.3ft)1.2m (3.8ft)1.0m (3.4ft)0.9m (3.1ft)
Direction 316°
NW
320°
NW
321°
NW
321°
NW
323°
NW
324°
NW
322°
NW
324°
NW
Period9.7 sec.9.1 sec.8.9 sec.8.4 sec.8.3 sec.8.1 sec.7.6 sec.7.4 sec.
Significant height0.8m (2.6ft)0.5m (1.6ft)0.2m (0.7ft)0.7m (2.3ft)0.1m (0.3ft)0.2m (0.7ft)1.5m (4.9ft)1.3m (4.3ft)
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 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 52°F t and a low of 41°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 46mph km/h (with gusts up to 49.7mph). Wave height will be up to 13.1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (42°F)6°C (42°F)6°C (43°F)6°C (43°F)11°C (52°F)10°C (49°F)10°C (50°F)9°C (48°F)
Perceived temperature3°C (37°F)2°C (36°F)3°C (37°F)4°C (39°F)7°C (45°F)4°C (39°F)5°C (40°F)3°C (38°F)
Precipitation0in0in0in0in0.1in0in0in0in
Humidity64%64%70%82%85%82%65%79%
Barometric pressure1017 hPa1013 hPa1008 hPa1005 hPa1002 hPa1001 hPa1002 hPa1003 hPa
Cloud cover49%47%100%95%100%72%100%100%
Heat index5°C (42°F)6°C (42°F)6°C (43°F)6°C (43°F)11°C (52°F)10°C (49°F)10°C (50°F)9°C (48°F)
Dew point-1°C (31°F)-1°C (31°F)1°C (34°F)3°C (38°F)8°C (47°F)7°C (44°F)4°C (39°F)5°C (42°F)
Wind
Speed13km/h (8mph)17km/h (11mph)15km/h (9mph)11km/h (7mph)44km/h (28mph)70km/h (44mph)74km/h (46mph)68km/h (43mph)
Gusts19km/h (12mph)24km/h (15mph)20km/h (13mph)15km/h (9mph)58km/h (36mph)73km/h (45mph)80km/h (50mph)74km/h (46mph)
Direction 118°
ESE
80°
E
81°
E
107°
ESE
235°
SW
265°
W
257°
WSW
281°
WNW
Wind chill3°C (37°F)2°C (36°F)3°C (37°F)4°C (39°F)7°C (45°F)4°C (39°F)5°C (40°F)3°C (38°F)
Waves
Height0.8m (2.7ft)0.7m (2.3ft)0.6m (2.0ft)0.5m (1.7ft)0.5m (1.5ft)0.4m (1.3ft)2.4m (7.8ft)4.0m (13.1ft)
Direction 328°
NNW
323°
NW
328°
NNW
324°
NW
328°
NNW
335°
NNW
257°
WSW
264°
W
Period7.0 sec.6.8 sec.6.7 sec.6.2 sec.6.1 sec.6.9 sec.6.8 sec.6.8 sec.
Significant height1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)0.5m (1.6ft)0.4m (1.3ft)3.4m (11.2ft)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. 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 41.6mph km/h (with gusts up to 45.4mph). Wave height will be up to 16.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (47°F)8°C (47°F)8°C (46°F)7°C (44°F)7°C (45°F)7°C (45°F)7°C (45°F)8°C (46°F)
Perceived temperature3°C (37°F)3°C (37°F)2°C (36°F)1°C (34°F)1°C (34°F)2°C (35°F)3°C (37°F)4°C (39°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%69%62%66%65%60%59%57%
Barometric pressure1007 hPa1011 hPa1014 hPa1017 hPa1018 hPa1020 hPa1022 hPa1022 hPa
Cloud cover100%100%100%100%98%71%86%86%
Heat index9°C (47°F)8°C (47°F)8°C (46°F)7°C (44°F)7°C (45°F)7°C (45°F)7°C (45°F)8°C (46°F)
Dew point4°C (39°F)3°C (37°F)1°C (34°F)1°C (34°F)1°C (34°F)-0°C (32°F)-1°C (31°F)-0°C (31°F)
Wind
Speed67km/h (41mph)59km/h (36mph)56km/h (35mph)53km/h (33mph)51km/h (32mph)44km/h (27mph)30km/h (19mph)24km/h (15mph)
Gusts72km/h (45mph)65km/h (40mph)73km/h (46mph)60km/h (37mph)68km/h (42mph)44km/h (27mph)42km/h (26mph)33km/h (20mph)
Direction 296°
WNW
300°
WNW
288°
WNW
289°
WNW
290°
WNW
294°
WNW
300°
WNW
284°
WNW
Wind chill3°C (37°F)3°C (37°F)2°C (36°F)1°C (34°F)1°C (34°F)2°C (35°F)3°C (37°F)4°C (39°F)
Waves
Height4.7m (15.5ft)5.1m (16.9ft)5.1m (16.7ft)4.3m (14.0ft)3.4m (11.1ft)2.7m (9.0ft)2.2m (7.2ft)1.8m (6.1ft)
Direction 273°
W
280°
W
289°
WNW
301°
WNW
314°
NW
320°
NW
322°
NW
323°
NW
Period9.1 sec.10.9 sec.11.1 sec.10.6 sec.9.7 sec.9.3 sec.9.1 sec.9.1 sec.
Significant height2.5m (8.2ft)2.7m (8.9ft)1.9m (6.2ft)1.8m (5.9ft)1.7m (5.6ft)1.2m (3.9ft)1.5m (4.9ft)1.3m (4.3ft)
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 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 43°F. Precipitation is in the forecast (0.2in 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 30.5mph km/h (with gusts up to 40.4mph). Wave height will be up to 7.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)7°C (45°F)7°C (44°F)9°C (47°F)11°C (51°F)9°C (49°F)7°C (45°F)7°C (44°F)
Perceived temperature5°C (40°F)3°C (38°F)3°C (37°F)4°C (40°F)6°C (44°F)5°C (42°F)3°C (38°F)3°C (38°F)
Precipitation0in0in0in0in0in0.1in0.1in0in
Humidity60%65%68%67%70%82%87%85%
Barometric pressure1021 hPa1021 hPa1020 hPa1020 hPa1018 hPa1018 hPa1020 hPa1021 hPa
Cloud cover68%59%65%99%75%100%100%100%
Heat index8°C (47°F)7°C (45°F)7°C (44°F)9°C (47°F)11°C (51°F)9°C (49°F)7°C (45°F)7°C (44°F)
Dew point1°C (33°F)1°C (34°F)1°C (34°F)3°C (37°F)5°C (42°F)6°C (43°F)5°C (41°F)4°C (40°F)
Wind
Speed24km/h (15mph)25km/h (16mph)26km/h (16mph)35km/h (22mph)49km/h (30mph)33km/h (21mph)25km/h (16mph)19km/h (12mph)
Gusts31km/h (19mph)34km/h (21mph)36km/h (22mph)45km/h (28mph)65km/h (40mph)40km/h (25mph)34km/h (21mph)26km/h (16mph)
Direction 257°
WSW
224°
SW
217°
SW
228°
SW
252°
WSW
296°
WNW
339°
NNW
348°
NNW
Wind chill5°C (40°F)3°C (38°F)3°C (37°F)4°C (40°F)6°C (44°F)5°C (42°F)3°C (38°F)3°C (38°F)
Waves
Height1.6m (5.3ft)1.4m (4.6ft)1.2m (4.0ft)1.5m (5.1ft)1.9m (6.2ft)2.3m (7.4ft)2.4m (7.9ft)2.3m (7.6ft)
Direction 321°
NW
324°
NW
321°
NW
288°
WNW
291°
WNW
280°
W
274°
W
286°
WNW
Period8.0 sec.7.9 sec.7.4 sec.8.1 sec.8.0 sec.7.6 sec.6.8 sec.7.3 sec.
Significant height0.8m (2.6ft)0.9m (3ft)0.7m (2.3ft)1.1m (3.6ft)1.4m (4.6ft)1.8m (5.9ft)1.7m (5.6ft)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 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 41°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 11.2mph km/h (with gusts up to 14.3mph). Wave height will be up to 8.9ft 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 (40°F)4°C (40°F)5°C (41°F)5°C (40°F)5°C (41°F)
Perceived temperature2°C (35°F)2°C (35°F)2°C (36°F)2°C (35°F)3°C (38°F)3°C (37°F)1°C (34°F)2°C (36°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity91%86%87%86%82%74%83%77%
Barometric pressure1022 hPa1022 hPa1023 hPa1024 hPa1023 hPa1023 hPa1024 hPa1024 hPa
Cloud cover100%94%100%84%100%94%91%95%
Heat index5°C (42°F)5°C (41°F)5°C (41°F)5°C (40°F)4°C (40°F)5°C (41°F)5°C (40°F)5°C (41°F)
Dew point4°C (39°F)3°C (37°F)3°C (37°F)2°C (36°F)2°C (35°F)1°C (34°F)2°C (36°F)1°C (34°F)
Wind
Speed18km/h (11mph)15km/h (9mph)10km/h (6mph)11km/h (7mph)6km/h (4mph)10km/h (6mph)17km/h (10mph)12km/h (8mph)
Gusts23km/h (14mph)19km/h (12mph)13km/h (8mph)14km/h (8mph)8km/h (5mph)14km/h (9mph)23km/h (14mph)17km/h (10mph)
Direction 336°
NNW
335°
NNW
351°
N
346°
NNW
334°
NNW
316°
NW
332°
NNW
329°
NNW
Wind chill2°C (35°F)2°C (35°F)2°C (36°F)2°C (35°F)3°C (38°F)3°C (37°F)1°C (34°F)2°C (36°F)
Waves
Height2.7m (8.8ft)2.2m (7.3ft)1.9m (6.3ft)1.7m (5.7ft)1.5m (5.0ft)1.3m (4.2ft)1.2m (4.0ft)1.2m (4.0ft)
Direction 280°
W
282°
WNW
289°
WNW
292°
WNW
296°
WNW
300°
WNW
307°
NW
319°
NW
Period8.5 sec.7.5 sec.7.2 sec.7.5 sec.7.1 sec.7.3 sec.7.6 sec.7.8 sec.
Significant height1.8m (5.9ft)0.9m (3ft)1.0m (3.3ft)1.2m (3.9ft)0.9m (3ft)0.5m (1.6ft)0.6m (2ft)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 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 9.9mph km/h (with gusts up to 13.1mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (42°F)6°C (42°F)6°C (42°F)6°C (43°F)6°C (44°F)7°C (44°F)5°C (41°F)6°C (42°F)
Perceived temperature3°C (37°F)3°C (37°F)2°C (36°F)3°C (37°F)3°C (38°F)4°C (39°F)3°C (37°F)6°C (42°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%65%61%59%56%54%55%56%
Barometric pressure1024 hPa1025 hPa1026 hPa1027 hPa1027 hPa1028 hPa1029 hPa1030 hPa
Cloud cover88%58%71%79%95%88%7%6%
Heat index6°C (42°F)6°C (42°F)6°C (42°F)6°C (43°F)6°C (44°F)7°C (44°F)5°C (41°F)6°C (42°F)
Dew point1°C (33°F)-0°C (31°F)-1°C (30°F)-1°C (29°F)-2°C (29°F)-2°C (28°F)-3°C (26°F)-2°C (28°F)
Wind
Speed14km/h (9mph)15km/h (10mph)16km/h (10mph)15km/h (9mph)15km/h (10mph)15km/h (9mph)10km/h (6mph)3km/h (2mph)
Gusts18km/h (11mph)20km/h (12mph)21km/h (13mph)19km/h (12mph)20km/h (13mph)20km/h (13mph)18km/h (11mph)4km/h (3mph)
Direction 307°
NW
319°
NW
328°
NNW
309°
NW
296°
WNW
298°
WNW
314°
NW
329°
NNW
Wind chill3°C (37°F)3°C (37°F)2°C (36°F)3°C (37°F)3°C (38°F)4°C (39°F)3°C (37°F)6°C (42°F)
Waves
Height1.2m (3.8ft)1.1m (3.7ft)1.1m (3.7ft)1.1m (3.7ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.5ft)1.0m (3.4ft)
Direction 320°
NW
322°
NW
321°
NW
320°
NW
319°
NW
319°
NW
320°
NW
321°
NW
Period8.0 sec.7.8 sec.7.8 sec.7.8 sec.7.7 sec.7.7 sec.7.6 sec.7.6 sec.
Significant height0.2m (0.7ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)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 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 47°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 8.1mph km/h (with gusts up to 11.8mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (41°F)5°C (40°F)5°C (40°F)5°C (42°F)6°C (43°F)8°C (46°F)6°C (42°F)8°C (47°F)
Perceived temperature4°C (39°F)2°C (35°F)1°C (35°F)2°C (36°F)4°C (40°F)8°C (46°F)4°C (39°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%68%67%61%46%42%55%66%
Barometric pressure1029 hPa1030 hPa1030 hPa1030 hPa1028 hPa1028 hPa1029 hPa1029 hPa
Cloud cover3%0%0%0%2%3%0%0%
Heat index5°C (41°F)5°C (40°F)5°C (40°F)5°C (42°F)6°C (43°F)8°C (46°F)6°C (42°F)8°C (47°F)
Dew point-1°C (30°F)-1°C (31°F)-1°C (30°F)-2°C (29°F)-5°C (24°F)-4°C (24°F)-2°C (28°F)2°C (36°F)
Wind
Speed6km/h (4mph)11km/h (7mph)13km/h (8mph)13km/h (8mph)8km/h (5mph)4km/h (2mph)9km/h (6mph)9km/h (6mph)
Gusts9km/h (6mph)16km/h (10mph)19km/h (12mph)17km/h (11mph)14km/h (9mph)7km/h (5mph)19km/h (12mph)16km/h (10mph)
Direction 142°
SE
131°
SE
106°
ESE
100°
E
102°
ESE
113°
ESE
135°
SE
151°
SSE
Wind chill4°C (39°F)2°C (35°F)1°C (35°F)2°C (36°F)4°C (40°F)8°C (46°F)4°C (39°F)7°C (44°F)
Waves
Height1.0m (3.2ft)0.9m (3.0ft)0.8m (2.8ft)0.8m (2.5ft)0.7m (2.2ft)0.6m (2.0ft)0.5m (1.7ft)0.5m (1.5ft)
Direction 321°
NW
322°
NW
322°
NW
323°
NW
323°
NW
324°
NW
325°
NW
326°
NW
Period7.5 sec.7.4 sec.7.3 sec.7.1 sec.6.8 sec.6.7 sec.6.4 sec.6.2 sec.
Significant height1.4m (4.6ft)1.4m (4.6ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)
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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