Sea weather in Joetsu in Japan All the beach weather in Joetsu
All the essential weather information for enjoying the beach in Joetsu 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 Joetsu over the next 7 days?
Discover the best moment to go to the beach in Joetsu in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Joetsu. 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 |
|---|---|---|---|---|
| Friday 5 December 2025 | 38°F to 45°F | 16.8mph | not recommended | all the sea weather |
| Saturday 6 December 2025 | 38°F to 43°F | 7.5mph | discouraged | all the sea weather |
| Sunday 7 December 2025 | 41°F to 50°F | 9.3mph | recommended | all the sea weather |
| Monday 8 December 2025 | 47°F to 52°F | 22.4mph | not recommended | all the sea weather |
| Tuesday 9 December 2025 | 43°F to 47°F | 6.2mph | discouraged | all the sea weather |
| Wednesday 10 December 2025 | 40°F to 47°F | 10.6mph | recommended | all the sea weather |
| Thursday 11 December 2025 | 43°F to 50°F | 8.1mph | recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Joetsu
Sea weather on Friday 5 December 2025
On Friday 5 December 2025, the sun will rise at 06:45 and will set at 16:29 on the beach(es) of Joetsu. The outside temperature will be a high of 45°F t and a low of 38°F. Precipitation is in the forecast (0.4in 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 26.7mph km/h (with gusts up to 35.4mph). Wave height will be up to 9.8ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  |  | |  |  |  |  | |
| Outside temperature | 3°C (37°F) | 6°C (43°F) | 5°C (40°F) | 5°C (41°F) | 4°C (40°F) | 6°C (43°F) | 6°C (43°F) | 6°C (42°F) |
| Perceived temperature | -2°C (29°F) | 0°C (33°F) | -0°C (32°F) | 1°C (34°F) | -0°C (31°F) | 1°C (34°F) | 1°C (34°F) | 1°C (34°F) |
| Precipitation | 0.1in | 0.1in | 0.1in | 0in | 0.1in | 0in | 0in | 0in |
| Humidity | 87% | 79% | 86% | 88% | 92% | 72% | 70% | 71% |
| Barometric pressure | 1015 hPa | 1016 hPa | 1016 hPa | 1016 hPa | 1018 hPa | 1019 hPa | 1021 hPa | 1023 hPa |
| Cloud cover | 97% | 100% | 94% | 94% | 100% | 98% | 98% | 69% |
| Heat index | 3°C (37°F) | 6°C (43°F) | 5°C (40°F) | 5°C (41°F) | 4°C (40°F) | 6°C (43°F) | 6°C (43°F) | 6°C (42°F) |
| Dew point | 1°C (33°F) | 3°C (37°F) | 2°C (36°F) | 3°C (38°F) | 3°C (38°F) | 2°C (35°F) | 1°C (34°F) | 1°C (34°F) |
| Wind | ||||||||
| Speed | 18km/h (11mph) | 43km/h (27mph) | 27km/h (17mph) | 19km/h (12mph) | 23km/h (14mph) | 31km/h (19mph) | 32km/h (20mph) | 27km/h (17mph) |
| Gusts | 25km/h (15mph) | 57km/h (35mph) | 37km/h (23mph) | 30km/h (18mph) | 30km/h (19mph) | 48km/h (30mph) | 44km/h (27mph) | 40km/h (25mph) |
| Direction | 223° SW | 297° WNW | 288° WNW | 227° SW | 324° NW | 291° WNW | 287° WNW | 270° W |
| Wind chill | -2°C (29°F) | 0°C (33°F) | -0°C (32°F) | 1°C (34°F) | -0°C (31°F) | 1°C (34°F) | 1°C (34°F) | 1°C (34°F) |
| Waves | ||||||||
| Height | 2.3m (7.5ft) | 2.8m (9.3ft) | 3.0m (9.8ft) | 2.5m (8.3ft) | 2.3m (7.5ft) | 2.1m (7.1ft) | 2.1m (6.8ft) | 2.0m (6.5ft) |
| Direction | 319° NW | 319° NW | 318° NW | 320° NW | 326° NW | 328° NNW | 324° NW | 321° NW |
| Period | 9.4 sec. | 8.6 sec. | 9.1 sec. | 8.9 sec. | 8.8 sec. | 8.7 sec. | 8.4 sec. | 8.2 sec. |
| Significant height | 0.6m (2ft) | 1.1m (3.6ft) | 0.5m (1.6ft) | 0.3m (1ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.6m (2ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) |
Sea weather on Saturday 6 December 2025
On Saturday 6 December 2025, the sun will rise at 06:46 and will set at 16:29 on the beach(es) of Joetsu. The outside temperature will be a high of 43°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 11.2mph km/h (with gusts up to 18.6mph). Wave height will be up to 6.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | |  |  |  |  | | | |
| Outside temperature | 4°C (40°F) | 3°C (38°F) | 3°C (37°F) | 5°C (40°F) | 4°C (40°F) | 6°C (42°F) | 4°C (40°F) | 5°C (41°F) |
| Perceived temperature | 1°C (33°F) | -1°C (31°F) | -2°C (29°F) | 1°C (34°F) | 1°C (35°F) | 3°C (38°F) | 2°C (35°F) | 2°C (36°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 74% | 73% | 71% | 66% | 61% | 65% | 69% | 67% |
| Barometric pressure | 1024 hPa | 1024 hPa | 1025 hPa | 1025 hPa | 1023 hPa | 1023 hPa | 1023 hPa | 1023 hPa |
| Cloud cover | 71% | 9% | 0% | 0% | 2% | 7% | 11% | 0% |
| Heat index | 4°C (40°F) | 3°C (38°F) | 3°C (37°F) | 5°C (40°F) | 4°C (40°F) | 6°C (42°F) | 4°C (40°F) | 5°C (41°F) |
| Dew point | 0°C (32°F) | -1°C (30°F) | -2°C (28°F) | -1°C (30°F) | -3°C (27°F) | -0°C (31°F) | -1°C (30°F) | -1°C (30°F) |
| Wind | ||||||||
| Speed | 18km/h (11mph) | 17km/h (11mph) | 18km/h (11mph) | 15km/h (9mph) | 11km/h (7mph) | 12km/h (7mph) | 10km/h (6mph) | 12km/h (8mph) |
| Gusts | 29km/h (18mph) | 28km/h (17mph) | 30km/h (19mph) | 21km/h (13mph) | 22km/h (14mph) | 20km/h (12mph) | 21km/h (13mph) | 22km/h (14mph) |
| Direction | 221° SW | 187° S | 179° S | 169° S | 159° SSE | 160° SSE | 179° S | 166° SSE |
| Wind chill | 1°C (33°F) | -1°C (31°F) | -2°C (29°F) | 1°C (34°F) | 1°C (35°F) | 3°C (38°F) | 2°C (35°F) | 2°C (36°F) |
| Waves | ||||||||
| Height | 1.9m (6.1ft) | 1.8m (5.9ft) | 1.7m (5.5ft) | 1.5m (5.0ft) | 1.3m (4.4ft) | 1.2m (3.9ft) | 1.1m (3.5ft) | 1.0m (3.2ft) |
| Direction | 319° NW | 320° NW | 320° NW | 320° NW | 320° NW | 321° NW | 320° NW | 317° NW |
| Period | 8.3 sec. | 8.4 sec. | 8.5 sec. | 8.4 sec. | 8.2 sec. | 8.1 sec. | 7.8 sec. | 7.4 sec. |
| Significant height | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.2m (0.7ft) | 0.1m (0.3ft) | 0.2m (0.7ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) |
Sea weather on Sunday 7 December 2025
On Sunday 7 December 2025, the sun will rise at 06:47 and will set at 16:29 on the beach(es) of Joetsu. The outside temperature will be a high of 50°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 11.8mph km/h (with gusts up to 22.4mph). Wave height will be up to 7.5ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 5°C (41°F) | 5°C (42°F) | 6°C (42°F) | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) | 8°C (47°F) | 8°C (47°F) |
| Perceived temperature | 2°C (35°F) | 2°C (35°F) | 2°C (35°F) | 5°C (42°F) | 6°C (43°F) | 7°C (44°F) | 6°C (42°F) | 6°C (43°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 64% | 63% | 64% | 66% | 67% | 74% | 77% | 72% |
| Barometric pressure | 1022 hPa | 1020 hPa | 1021 hPa | 1021 hPa | 1019 hPa | 1018 hPa | 1019 hPa | 1019 hPa |
| Cloud cover | 46% | 11% | 16% | 46% | 11% | 82% | 74% | 73% |
| Heat index | 5°C (41°F) | 5°C (42°F) | 6°C (42°F) | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) | 8°C (47°F) | 8°C (47°F) |
| Dew point | -1°C (30°F) | -1°C (30°F) | -1°C (31°F) | 2°C (36°F) | 3°C (38°F) | 5°C (40°F) | 4°C (40°F) | 4°C (39°F) |
| Wind | ||||||||
| Speed | 16km/h (10mph) | 19km/h (12mph) | 19km/h (12mph) | 18km/h (11mph) | 18km/h (11mph) | 14km/h (9mph) | 14km/h (9mph) | 15km/h (9mph) |
| Gusts | 29km/h (18mph) | 36km/h (22mph) | 34km/h (21mph) | 28km/h (17mph) | 31km/h (19mph) | 25km/h (15mph) | 27km/h (17mph) | 28km/h (17mph) |
| Direction | 168° SSE | 160° SSE | 177° S | 223° SW | 191° SSW | 188° S | 197° SSW | 196° SSW |
| Wind chill | 2°C (35°F) | 2°C (35°F) | 2°C (35°F) | 5°C (42°F) | 6°C (43°F) | 7°C (44°F) | 6°C (42°F) | 6°C (43°F) |
| Waves | ||||||||
| Height | 1.1m (3.5ft) | 1.1m (3.5ft) | 1.5m (4.8ft) | 1.8m (5.9ft) | 1.7m (5.7ft) | 1.9m (6.1ft) | 2.3m (7.4ft) | 2.3m (7.5ft) |
| Direction | 305° NW | 296° WNW | 294° WNW | 295° WNW | 295° WNW | 295° WNW | 304° WNW | 299° WNW |
| Period | 7.5 sec. | 7.7 sec. | 8.4 sec. | 8.5 sec. | 8.4 sec. | 8.1 sec. | 9.5 sec. | 9.4 sec. |
| Significant height | 1.0m (3.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.6m (2ft) | 0.4m (1.3ft) | 0.9m (3ft) | 0.7m (2.3ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) |
Sea weather on Monday 8 December 2025
On Monday 8 December 2025, the sun will rise at 06:48 and will set at 16:29 on the beach(es) of Joetsu. 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! Be careful, the sea will be generally rough with a wind speed of up to 28mph km/h (with gusts up to 32.9mph). Wave height will be up to 9.5ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 10°C (49°F) | 9°C (48°F) | 9°C (48°F) | 11°C (52°F) | 11°C (52°F) | 10°C (50°F) | 9°C (48°F) | 8°C (46°F) |
| Perceived temperature | 7°C (44°F) | 6°C (42°F) | 6°C (42°F) | 8°C (46°F) | 7°C (45°F) | 6°C (43°F) | 4°C (40°F) | 4°C (38°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 72% | 74% | 73% | 69% | 76% | 65% | 71% | 77% |
| Barometric pressure | 1018 hPa | 1018 hPa | 1017 hPa | 1017 hPa | 1017 hPa | 1019 hPa | 1020 hPa | 1021 hPa |
| Cloud cover | 79% | 72% | 84% | 89% | 84% | 89% | 51% | 91% |
| Heat index | 10°C (49°F) | 9°C (48°F) | 9°C (48°F) | 11°C (52°F) | 11°C (52°F) | 10°C (50°F) | 9°C (48°F) | 8°C (46°F) |
| Dew point | 5°C (41°F) | 4°C (40°F) | 4°C (40°F) | 6°C (42°F) | 7°C (45°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) |
| Wind | ||||||||
| Speed | 22km/h (14mph) | 22km/h (13mph) | 23km/h (14mph) | 28km/h (18mph) | 45km/h (28mph) | 44km/h (27mph) | 37km/h (23mph) | 36km/h (23mph) |
| Gusts | 39km/h (24mph) | 39km/h (24mph) | 26km/h (16mph) | 29km/h (18mph) | 49km/h (30mph) | 47km/h (29mph) | 38km/h (24mph) | 53km/h (33mph) |
| Direction | 226° SW | 218° SW | 213° SSW | 223° SW | 266° W | 266° W | 261° W | 279° W |
| Wind chill | 7°C (44°F) | 6°C (42°F) | 6°C (42°F) | 8°C (46°F) | 7°C (45°F) | 6°C (43°F) | 4°C (40°F) | 4°C (38°F) |
| Waves | ||||||||
| Height | 2.1m (6.9ft) | 1.9m (6.2ft) | 1.7m (5.6ft) | 1.8m (5.9ft) | 2.4m (8.0ft) | 2.9m (9.6ft) | 2.9m (9.5ft) | 2.3m (7.7ft) |
| Direction | 299° WNW | 298° WNW | 296° WNW | 295° WNW | 294° WNW | 303° WNW | 307° NW | 302° WNW |
| Period | 9.2 sec. | 9.0 sec. | 8.5 sec. | 7.7 sec. | 7.8 sec. | 8.7 sec. | 9.4 sec. | 9.6 sec. |
| Significant height | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.8m (2.6ft) | 1.4m (4.6ft) | 1.1m (3.6ft) | 0.9m (3ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) |
Sea weather on Tuesday 9 December 2025
On Tuesday 9 December 2025, the sun will rise at 06:49 and will set at 16:29 on the beach(es) of Joetsu. The outside temperature will be a high of 47°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. The sea will be generally calm, with a wind speed of up to 19.3mph km/h (with gusts up to 25.5mph). Wave height will be up to 6.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 8°C (46°F) | 7°C (44°F) | 7°C (44°F) | 6°C (43°F) | 6°C (43°F) | 7°C (44°F) | 6°C (43°F) | 6°C (42°F) |
| Perceived temperature | 4°C (39°F) | 3°C (37°F) | 3°C (37°F) | 3°C (37°F) | 2°C (35°F) | 2°C (36°F) | 3°C (37°F) | 4°C (38°F) |
| Precipitation | 0.1in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 73% | 77% | 75% | 75% | 75% | 67% | 65% | 66% |
| Barometric pressure | 1021 hPa | 1023 hPa | 1024 hPa | 1025 hPa | 1025 hPa | 1026 hPa | 1028 hPa | 1028 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 70% |
| Heat index | 8°C (46°F) | 7°C (44°F) | 7°C (44°F) | 6°C (43°F) | 6°C (43°F) | 7°C (44°F) | 6°C (43°F) | 6°C (42°F) |
| Dew point | 3°C (38°F) | 3°C (37°F) | 2°C (36°F) | 2°C (36°F) | 2°C (36°F) | 1°C (34°F) | 0°C (32°F) | -0°C (32°F) |
| Wind | ||||||||
| Speed | 31km/h (19mph) | 27km/h (17mph) | 24km/h (15mph) | 21km/h (13mph) | 27km/h (17mph) | 28km/h (17mph) | 19km/h (12mph) | 10km/h (6mph) |
| Gusts | 41km/h (25mph) | 37km/h (23mph) | 31km/h (19mph) | 30km/h (19mph) | 34km/h (21mph) | 37km/h (23mph) | 26km/h (16mph) | 14km/h (8mph) |
| Direction | 304° WNW | 313° NW | 305° NW | 309° NW | 306° NW | 308° NW | 305° NW | 253° WSW |
| Wind chill | 4°C (39°F) | 3°C (37°F) | 3°C (37°F) | 3°C (37°F) | 2°C (35°F) | 2°C (36°F) | 3°C (37°F) | 4°C (38°F) |
| Waves | ||||||||
| Height | 2.0m (6.5ft) | 1.9m (6.1ft) | 1.9m (6.2ft) | 2.0m (6.7ft) | 2.0m (6.7ft) | 2.0m (6.6ft) | 2.0m (6.4ft) | 1.8m (6.0ft) |
| Direction | 297° WNW | 295° WNW | 300° WNW | 304° WNW | 307° NW | 311° NW | 313° NW | 315° NW |
| Period | 9.0 sec. | 8.7 sec. | 7.9 sec. | 7.9 sec. | 8.3 sec. | 8.4 sec. | 8.5 sec. | 8.4 sec. |
| Significant height | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) |
Sea weather on Wednesday 10 December 2025
On Wednesday 10 December 2025, the sun will rise at 06:50 and will set at 16:29 on the beach(es) of Joetsu. 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 10.6mph km/h (with gusts up to 18mph). Wave height will be up to 5.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 5°C (40°F) | 4°C (40°F) | 4°C (39°F) | 5°C (42°F) | 7°C (45°F) | 8°C (46°F) | 6°C (43°F) | 6°C (43°F) |
| Perceived temperature | 2°C (35°F) | 1°C (34°F) | 0°C (33°F) | 2°C (36°F) | 6°C (42°F) | 6°C (43°F) | 3°C (37°F) | 3°C (37°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 69% | 68% | 68% | 62% | 54% | 56% | 66% | 62% |
| Barometric pressure | 1028 hPa | 1028 hPa | 1028 hPa | 1028 hPa | 1026 hPa | 1026 hPa | 1026 hPa | 1025 hPa |
| Cloud cover | 83% | 79% | 74% | 0% | 32% | 32% | 33% | 3% |
| Heat index | 5°C (40°F) | 4°C (40°F) | 4°C (39°F) | 5°C (42°F) | 7°C (45°F) | 8°C (46°F) | 6°C (43°F) | 6°C (43°F) |
| Dew point | -1°C (31°F) | -1°C (30°F) | -1°C (29°F) | -1°C (30°F) | -2°C (29°F) | -0°C (31°F) | 0°C (32°F) | -0°C (31°F) |
| Wind | ||||||||
| Speed | 12km/h (7mph) | 14km/h (9mph) | 15km/h (9mph) | 16km/h (10mph) | 8km/h (5mph) | 10km/h (6mph) | 15km/h (9mph) | 17km/h (11mph) |
| Gusts | 19km/h (12mph) | 22km/h (14mph) | 24km/h (15mph) | 22km/h (14mph) | 11km/h (7mph) | 15km/h (9mph) | 27km/h (17mph) | 29km/h (18mph) |
| Direction | 196° SSW | 194° SSW | 182° S | 164° SSE | 194° SSW | 212° SSW | 176° S | 179° S |
| Wind chill | 2°C (35°F) | 1°C (34°F) | 0°C (33°F) | 2°C (36°F) | 6°C (42°F) | 6°C (43°F) | 3°C (37°F) | 3°C (37°F) |
| Waves | ||||||||
| Height | 1.7m (5.5ft) | 1.6m (5.2ft) | 1.5m (5.1ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.3m (4.2ft) | 1.1m (3.7ft) | 1.0m (3.4ft) |
| Direction | 318° NW | 322° NW | 326° NNW | 331° NNW | 333° NNW | 330° NNW | 333° NNW | 336° NNW |
| Period | 8.3 sec. | 8.2 sec. | 8.0 sec. | 8.0 sec. | 7.7 sec. | 7.6 sec. | 7.5 sec. | 7.2 sec. |
| Significant height | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) | 0.2m (0.7ft) | 0.1m (0.3ft) | 0.2m (0.7ft) | 1.0m (3.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) |
Sea weather on Thursday 11 December 2025
On Thursday 11 December 2025, the sun will rise at 06:50 and will set at 16:30 on the beach(es) of Joetsu. The outside temperature will be a high of 50°F t and a low of 43°F. Precipitation is in the forecast (0.3in 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 12.4mph km/h (with gusts up to 19.3mph). Wave height will be up to 4.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | |  | |
| Outside temperature | 6°C (43°F) | 7°C (44°F) | 8°C (46°F) | 8°C (46°F) | 10°C (50°F) | 10°C (50°F) | 9°C (48°F) | 9°C (48°F) |
| Perceived temperature | 3°C (38°F) | 4°C (38°F) | 5°C (42°F) | 5°C (41°F) | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 7°C (44°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0.1in | 0in |
| Humidity | 62% | 61% | 63% | 79% | 71% | 80% | 88% | 83% |
| Barometric pressure | 1024 hPa | 1024 hPa | 1023 hPa | 1024 hPa | 1022 hPa | 1021 hPa | 1022 hPa | 1022 hPa |
| Cloud cover | 47% | 34% | 81% | 100% | 100% | 98% | 93% | 89% |
| Heat index | 6°C (43°F) | 7°C (44°F) | 8°C (46°F) | 8°C (46°F) | 10°C (50°F) | 10°C (50°F) | 9°C (48°F) | 9°C (48°F) |
| Dew point | -0°C (31°F) | -0°C (32°F) | 1°C (34°F) | 5°C (40°F) | 5°C (41°F) | 7°C (44°F) | 7°C (44°F) | 6°C (43°F) |
| Wind | ||||||||
| Speed | 16km/h (10mph) | 18km/h (11mph) | 14km/h (9mph) | 20km/h (13mph) | 18km/h (11mph) | 20km/h (13mph) | 11km/h (7mph) | 13km/h (8mph) |
| Gusts | 27km/h (17mph) | 31km/h (19mph) | 24km/h (15mph) | 28km/h (18mph) | 26km/h (16mph) | 30km/h (19mph) | 18km/h (11mph) | 20km/h (13mph) |
| Direction | 193° SSW | 193° SSW | 206° SSW | 226° SW | 247° WSW | 292° WNW | 274° W | 258° WSW |
| Wind chill | 3°C (38°F) | 4°C (38°F) | 5°C (42°F) | 5°C (41°F) | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 7°C (44°F) |
| Waves | ||||||||
| Height | 0.9m (3.1ft) | 0.9m (2.8ft) | 0.8m (2.6ft) | 0.8m (2.8ft) | 0.9m (3.1ft) | 1.4m (4.7ft) | 1.5m (5.0ft) | 1.3m (4.3ft) |
| Direction | 333° NNW | 336° NNW | 339° NNW | 338° NNW | 320° NW | 304° NW | 306° NW | 308° NW |
| Period | 6.9 sec. | 6.8 sec. | 6.4 sec. | 6.2 sec. | 6.2 sec. | 7.4 sec. | 6.7 sec. | 6.6 sec. |
| Significant height | 0.9m (3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 1.1m (3.6ft) | 1.3m (4.3ft) | 0.9m (3ft) | 0.6m (2ft) | 0.2m (0.7ft) |
| Sea water temperature | ||||||||
| Water temperature | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) | 17°C (62°F) |