Sea weather in Sendai (Honshu) in Japan All the beach weather in Sendai (Honshu)
All the essential weather information for enjoying the beach in Sendai (Honshu) 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 Sendai (Honshu) over the next 7 days?
Discover the best moment to go to the beach in Sendai (Honshu) in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Sendai (Honshu). 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 |
|---|---|---|---|---|
| Monday 15 December 2025 | 41°F to 49°F | 11.2mph | not recommended | all the sea weather |
| Tuesday 16 December 2025 | 40°F to 49°F | 8.7mph | recommended | all the sea weather |
| Wednesday 17 December 2025 | 40°F to 47°F | 7.5mph | recommended | all the sea weather |
| Thursday 18 December 2025 | 36°F to 45°F | 3.1mph | discouraged | all the sea weather |
| Friday 19 December 2025 | 38°F to 47°F | 3.7mph | recommended | all the sea weather |
| Saturday 20 December 2025 | 41°F to 52°F | 5mph | recommended | all the sea weather |
| Sunday 21 December 2025 | 49°F to 59°F | 29.2mph | not recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Sendai (Honshu)
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 06:45 and will set at 16:17 on the beach(es) of Sendai (Honshu). The outside temperature will be a high of 49°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 35.4mph km/h (with gusts up to 36.7mph). Wave height will be up to 6.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  |  | |  | |  | | |
| Outside temperature | 9°C (48°F) | 8°C (46°F) | 7°C (44°F) | 7°C (44°F) | 7°C (44°F) | 6°C (44°F) | 6°C (42°F) | 5°C (42°F) |
| Perceived temperature | 4°C (39°F) | 2°C (36°F) | 2°C (35°F) | 2°C (35°F) | 2°C (36°F) | 2°C (36°F) | 1°C (34°F) | 2°C (35°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 66% | 73% | 70% | 68% | 59% | 64% | 64% | 63% |
| Barometric pressure | 996 hPa | 998 hPa | 1005 hPa | 1010 hPa | 1011 hPa | 1014 hPa | 1017 hPa | 1018 hPa |
| Cloud cover | 100% | 82% | 85% | 74% | 83% | 76% | 83% | 77% |
| Heat index | 9°C (48°F) | 8°C (46°F) | 7°C (44°F) | 7°C (44°F) | 7°C (44°F) | 6°C (44°F) | 6°C (42°F) | 5°C (42°F) |
| Dew point | 3°C (37°F) | 3°C (38°F) | 2°C (35°F) | 1°C (34°F) | -1°C (31°F) | 0°C (32°F) | -1°C (31°F) | -1°C (30°F) |
| Wind | ||||||||
| Speed | 42km/h (26mph) | 57km/h (35mph) | 42km/h (26mph) | 36km/h (23mph) | 36km/h (22mph) | 25km/h (16mph) | 24km/h (15mph) | 18km/h (11mph) |
| Gusts | 46km/h (29mph) | 59km/h (37mph) | 58km/h (36mph) | 47km/h (29mph) | 50km/h (31mph) | 34km/h (21mph) | 35km/h (21mph) | 25km/h (16mph) |
| Direction | 265° W | 290° WNW | 300° WNW | 297° WNW | 297° WNW | 301° WNW | 305° NW | 307° NW |
| Wind chill | 4°C (39°F) | 2°C (36°F) | 2°C (35°F) | 2°C (35°F) | 2°C (36°F) | 2°C (36°F) | 1°C (34°F) | 2°C (35°F) |
| Waves | ||||||||
| Height | 2.1m (6.9ft) | 2.0m (6.6ft) | 1.6m (5.3ft) | 1.3m (4.3ft) | 1.1m (3.6ft) | 0.9m (2.9ft) | 0.8m (2.7ft) | 0.8m (2.5ft) |
| Direction | 135° SE | 136° SE | 135° SE | 135° SE | 132° SE | 126° SE | 119° ESE | 115° ESE |
| Period | 11.0 sec. | 11.1 sec. | 10.7 sec. | 10.3 sec. | 10.2 sec. | 10.1 sec. | 10.0 sec. | 10.4 sec. |
| Significant height | 1.9m (6.2ft) | 2.3m (7.5ft) | 1.5m (4.9ft) | 1.1m (3.6ft) | 1.7m (5.6ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 06:46 and will set at 16:17 on the beach(es) of Sendai (Honshu). The outside temperature will be a high of 49°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 11.8mph km/h (with gusts up to 18mph). Wave height will be up to 2.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | |  |
| Outside temperature | 6°C (42°F) | 5°C (40°F) | 4°C (40°F) | 5°C (41°F) | 8°C (46°F) | 9°C (49°F) | 8°C (46°F) | 7°C (44°F) |
| Perceived temperature | 2°C (36°F) | 2°C (35°F) | 2°C (36°F) | 3°C (37°F) | 5°C (41°F) | 7°C (44°F) | 5°C (40°F) | 4°C (40°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 61% | 71% | 72% | 70% | 54% | 53% | 64% | 78% |
| Barometric pressure | 1020 hPa | 1020 hPa | 1021 hPa | 1021 hPa | 1018 hPa | 1017 hPa | 1018 hPa | 1018 hPa |
| Cloud cover | 34% | 75% | 24% | 65% | 100% | 100% | 90% | 100% |
| Heat index | 6°C (42°F) | 5°C (40°F) | 4°C (40°F) | 5°C (41°F) | 8°C (46°F) | 9°C (49°F) | 8°C (46°F) | 7°C (44°F) |
| Dew point | -1°C (29°F) | -0°C (32°F) | -0°C (32°F) | -0°C (32°F) | -1°C (30°F) | 0°C (32°F) | 1°C (35°F) | 3°C (38°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 13km/h (8mph) | 9km/h (6mph) | 10km/h (6mph) | 18km/h (11mph) | 19km/h (12mph) | 19km/h (12mph) | 14km/h (9mph) |
| Gusts | 20km/h (13mph) | 19km/h (12mph) | 14km/h (9mph) | 14km/h (9mph) | 24km/h (15mph) | 26km/h (16mph) | 29km/h (18mph) | 20km/h (12mph) |
| Direction | 284° WNW | 269° W | 271° W | 244° WSW | 219° SW | 216° SW | 261° W | 283° WNW |
| Wind chill | 2°C (36°F) | 2°C (35°F) | 2°C (36°F) | 3°C (37°F) | 5°C (41°F) | 7°C (44°F) | 5°C (40°F) | 4°C (40°F) |
| Waves | ||||||||
| Height | 0.6m (2.0ft) | 0.6m (1.9ft) | 0.5m (1.7ft) | 0.5m (1.7ft) | 0.6m (1.9ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.6m (2.1ft) |
| Direction | 105° ESE | 94° E | 92° E | 91° E | 89° E | 84° E | 84° E | 84° E |
| Period | 10.2 sec. | 12.0 sec. | 12.0 sec. | 11.8 sec. | 12.1 sec. | 12.8 sec. | 12.7 sec. | 4.4 sec. |
| Significant height | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.9m (3ft) | 1.0m (3.3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 06:46 and will set at 16:18 on the beach(es) of Sendai (Honshu). 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 9.3mph km/h (with gusts up to 13.1mph). Wave height will be up to 2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 7°C (44°F) | 6°C (43°F) | 5°C (41°F) | 6°C (43°F) | 8°C (46°F) | 7°C (45°F) | 6°C (42°F) | 5°C (41°F) |
| Perceived temperature | 5°C (40°F) | 4°C (40°F) | 2°C (35°F) | 3°C (37°F) | 5°C (41°F) | 5°C (41°F) | 3°C (37°F) | 2°C (36°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 73% | 73% | 61% | 47% | 50% | 60% | 68% |
| Barometric pressure | 1018 hPa | 1019 hPa | 1020 hPa | 1021 hPa | 1019 hPa | 1019 hPa | 1021 hPa | 1022 hPa |
| Cloud cover | 100% | 64% | 19% | 17% | 46% | 30% | 48% | 16% |
| Heat index | 7°C (44°F) | 6°C (43°F) | 5°C (41°F) | 6°C (43°F) | 8°C (46°F) | 7°C (45°F) | 6°C (42°F) | 5°C (41°F) |
| Dew point | 3°C (37°F) | 2°C (35°F) | 0°C (33°F) | -1°C (30°F) | -3°C (26°F) | -2°C (28°F) | -1°C (29°F) | -0°C (31°F) |
| Wind | ||||||||
| Speed | 10km/h (6mph) | 9km/h (6mph) | 15km/h (9mph) | 15km/h (10mph) | 15km/h (9mph) | 13km/h (8mph) | 13km/h (8mph) | 12km/h (8mph) |
| Gusts | 13km/h (8mph) | 13km/h (8mph) | 21km/h (13mph) | 20km/h (13mph) | 20km/h (12mph) | 19km/h (12mph) | 19km/h (12mph) | 17km/h (10mph) |
| Direction | 332° NNW | 311° NW | 342° NNW | 313° NW | 308° NW | 315° NW | 323° NW | 300° WNW |
| Wind chill | 5°C (40°F) | 4°C (40°F) | 2°C (35°F) | 3°C (37°F) | 5°C (41°F) | 5°C (41°F) | 3°C (37°F) | 2°C (36°F) |
| Waves | ||||||||
| Height | 0.6m (1.9ft) | 0.5m (1.7ft) | 0.5m (1.6ft) | 0.4m (1.4ft) | 0.4m (1.4ft) | 0.4m (1.4ft) | 0.4m (1.4ft) | 0.4m (1.3ft) |
| Direction | 85° E | 87° E | 88° E | 89° E | 89° E | 89° E | 89° E | 85° E |
| Period | 12.4 sec. | 11.9 sec. | 11.6 sec. | 11.3 sec. | 11.0 sec. | 10.9 sec. | 10.8 sec. | 10.6 sec. |
| Significant height | 0.4m (1.3ft) | 0.6m (2ft) | 0.6m (2ft) | 0.5m (1.6ft) | 0.6m (2ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 06:47 and will set at 16:18 on the beach(es) of Sendai (Honshu). The outside temperature will be a high of 45°F t and a low of 36°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 14.9mph). Wave height will be up to 1.6ft 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) | 4°C (39°F) | 4°C (39°F) | 5°C (40°F) | 5°C (40°F) | 6°C (43°F) | 5°C (40°F) | 5°C (41°F) |
| Perceived temperature | 1°C (34°F) | 1°C (33°F) | 1°C (34°F) | 2°C (35°F) | 2°C (35°F) | 4°C (40°F) | 3°C (38°F) | 4°C (40°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 68% | 70% | 66% | 63% | 48% | 46% | 52% | 57% |
| Barometric pressure | 1022 hPa | 1023 hPa | 1025 hPa | 1027 hPa | 1025 hPa | 1026 hPa | 1027 hPa | 1028 hPa |
| Cloud cover | 5% | 8% | 2% | 8% | 0% | 7% | 5% | 0% |
| Heat index | 4°C (40°F) | 4°C (39°F) | 4°C (39°F) | 5°C (40°F) | 5°C (40°F) | 6°C (43°F) | 5°C (40°F) | 5°C (41°F) |
| Dew point | -1°C (30°F) | -1°C (30°F) | -2°C (29°F) | -2°C (29°F) | -5°C (22°F) | -4°C (24°F) | -4°C (24°F) | -3°C (28°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 13km/h (8mph) | 11km/h (7mph) | 13km/h (8mph) | 13km/h (8mph) | 9km/h (6mph) | 6km/h (4mph) | 5km/h (3mph) |
| Gusts | 19km/h (12mph) | 19km/h (12mph) | 16km/h (10mph) | 17km/h (11mph) | 24km/h (15mph) | 15km/h (9mph) | 11km/h (7mph) | 7km/h (4mph) |
| Direction | 317° NW | 310° NW | 310° NW | 329° NNW | 318° NW | 323° NW | 324° NW | 272° W |
| Wind chill | 1°C (34°F) | 1°C (33°F) | 1°C (34°F) | 2°C (35°F) | 2°C (35°F) | 4°C (40°F) | 3°C (38°F) | 4°C (40°F) |
| Waves | ||||||||
| Height | 0.4m (1.3ft) | 0.5m (1.5ft) | 0.5m (1.6ft) | 0.4m (1.5ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) |
| Direction | 86° E | 84° E | 85° E | 83° E | 84° E | 85° E | 82° E | 83° E |
| Period | 10.5 sec. | 10.0 sec. | 12.1 sec. | 11.9 sec. | 11.8 sec. | 11.8 sec. | 14.7 sec. | 14.4 sec. |
| Significant height | 0.4m (1.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.6m (2ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 06:48 and will set at 16:18 on the beach(es) of Sendai (Honshu). The outside temperature will be a high of 47°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 3.7mph km/h (with gusts up to 6.8mph). Wave height will be up to 1.3ft 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) | 4°C (39°F) | 3°C (38°F) | 5°C (41°F) | 6°C (43°F) | 7°C (44°F) | 5°C (41°F) | 8°C (46°F) |
| Perceived temperature | 3°C (38°F) | 2°C (36°F) | 3°C (37°F) | 4°C (39°F) | 6°C (43°F) | 7°C (44°F) | 5°C (41°F) | 6°C (44°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 63% | 63% | 62% | 52% | 42% | 42% | 49% | 58% |
| Barometric pressure | 1027 hPa | 1027 hPa | 1027 hPa | 1028 hPa | 1026 hPa | 1026 hPa | 1027 hPa | 1027 hPa |
| Cloud cover | 0% | 3% | 3% | 12% | 0% | 0% | 1% | 0% |
| Heat index | 4°C (40°F) | 4°C (39°F) | 3°C (38°F) | 5°C (41°F) | 6°C (43°F) | 7°C (44°F) | 5°C (41°F) | 8°C (46°F) |
| Dew point | -2°C (28°F) | -3°C (27°F) | -3°C (26°F) | -4°C (25°F) | -6°C (22°F) | -5°C (23°F) | -5°C (23°F) | -0°C (31°F) |
| Wind | ||||||||
| Speed | 5km/h (3mph) | 5km/h (3mph) | 4km/h (2mph) | 5km/h (3mph) | 3km/h (2mph) | 4km/h (2mph) | 3km/h (2mph) | 6km/h (4mph) |
| Gusts | 7km/h (5mph) | 8km/h (5mph) | 6km/h (4mph) | 8km/h (5mph) | 6km/h (3mph) | 8km/h (5mph) | 6km/h (4mph) | 11km/h (7mph) |
| Direction | 287° WNW | 299° WNW | 299° WNW | 244° WSW | 190° S | 94° E | 341° NNW | 297° WNW |
| Wind chill | 3°C (38°F) | 2°C (36°F) | 3°C (37°F) | 4°C (39°F) | 6°C (43°F) | 7°C (44°F) | 5°C (41°F) | 6°C (44°F) |
| Waves | ||||||||
| Height | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.4ft) |
| Direction | 84° E | 83° E | 84° E | 86° E | 85° E | 87° E | 88° E | 87° E |
| Period | 14.2 sec. | 13.8 sec. | 13.5 sec. | 13.3 sec. | 13.1 sec. | 12.6 sec. | 12.4 sec. | 12.1 sec. |
| Significant height | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 06:48 and will set at 16:19 on the beach(es) of Sendai (Honshu). The outside temperature will be a high of 52°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 5mph km/h (with gusts up to 9.9mph). Wave height will be up to 2.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 7°C (44°F) | 6°C (42°F) | 5°C (42°F) | 7°C (44°F) | 9°C (48°F) | 11°C (51°F) | 10°C (49°F) | 10°C (50°F) |
| Perceived temperature | 6°C (43°F) | 5°C (40°F) | 4°C (39°F) | 7°C (44°F) | 9°C (48°F) | 11°C (51°F) | 9°C (48°F) | 9°C (48°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 59% | 59% | 58% | 50% | 38% | 43% | 57% | 67% |
| Barometric pressure | 1026 hPa | 1026 hPa | 1026 hPa | 1026 hPa | 1024 hPa | 1024 hPa | 1025 hPa | 1024 hPa |
| Cloud cover | 0% | 0% | 0% | 0% | 6% | 10% | 11% | 16% |
| Heat index | 7°C (44°F) | 6°C (42°F) | 5°C (42°F) | 7°C (44°F) | 9°C (48°F) | 11°C (51°F) | 10°C (49°F) | 10°C (50°F) |
| Dew point | -1°C (31°F) | -1°C (29°F) | -2°C (28°F) | -3°C (26°F) | -4°C (24°F) | -1°C (30°F) | 2°C (35°F) | 4°C (39°F) |
| Wind | ||||||||
| Speed | 4km/h (3mph) | 6km/h (4mph) | 7km/h (4mph) | 4km/h (2mph) | 2km/h (1mph) | 5km/h (3mph) | 6km/h (4mph) | 8km/h (5mph) |
| Gusts | 7km/h (5mph) | 10km/h (6mph) | 12km/h (8mph) | 6km/h (3mph) | 4km/h (2mph) | 8km/h (5mph) | 12km/h (8mph) | 16km/h (10mph) |
| Direction | 295° WNW | 296° WNW | 298° WNW | 260° W | 183° S | 128° SE | 209° SSW | 237° WSW |
| Wind chill | 6°C (43°F) | 5°C (40°F) | 4°C (39°F) | 7°C (44°F) | 9°C (48°F) | 11°C (51°F) | 9°C (48°F) | 9°C (48°F) |
| Waves | ||||||||
| Height | 0.5m (1.7ft) | 0.6m (1.8ft) | 0.6m (2.0ft) | 0.6m (2.0ft) | 0.6m (2.0ft) | 0.6m (2.0ft) | 0.6m (2.1ft) | 0.7m (2.2ft) |
| Direction | 89° E | 90° E | 90° E | 157° SSE | 155° SSE | 152° SSE | 152° SSE | 154° SSE |
| Period | 11.8 sec. | 4.5 sec. | 4.8 sec. | 5.0 sec. | 5.2 sec. | 5.5 sec. | 5.7 sec. | 5.9 sec. |
| Significant height | 0.5m (1.6ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.6m (2ft) | 0.7m (2.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |
Sea weather on Sunday 21 December 2025
On Sunday 21 December 2025, the sun will rise at 06:49 and will set at 16:19 on the beach(es) of Sendai (Honshu). The outside temperature will be a high of 59°F t and a low of 49°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 29.2mph km/h (with gusts up to 31.7mph). Wave height will be up to 3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | |  |
| Outside temperature | 9°C (49°F) | 9°C (48°F) | 9°C (47°F) | 9°C (49°F) | 9°C (49°F) | 11°C (52°F) | 13°C (55°F) | 15°C (59°F) |
| Perceived temperature | 9°C (49°F) | 8°C (46°F) | 9°C (47°F) | 9°C (49°F) | 9°C (49°F) | 11°C (52°F) | 11°C (52°F) | 15°C (59°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0.1in |
| Humidity | 66% | 68% | 68% | 68% | 84% | 87% | 91% | 93% |
| Barometric pressure | 1023 hPa | 1022 hPa | 1021 hPa | 1020 hPa | 1017 hPa | 1014 hPa | 1011 hPa | 1007 hPa |
| Cloud cover | 10% | 9% | 58% | 100% | 100% | 98% | 100% | 100% |
| Heat index | 9°C (49°F) | 9°C (48°F) | 9°C (47°F) | 9°C (49°F) | 9°C (49°F) | 11°C (52°F) | 13°C (55°F) | 15°C (59°F) |
| Dew point | 3°C (38°F) | 3°C (38°F) | 3°C (38°F) | 4°C (39°F) | 7°C (44°F) | 9°C (48°F) | 12°C (53°F) | 14°C (57°F) |
| Wind | ||||||||
| Speed | 4km/h (2mph) | 6km/h (4mph) | 4km/h (2mph) | 2km/h (1mph) | 1km/h (0mph) | 4km/h (2mph) | 23km/h (14mph) | 47km/h (29mph) |
| Gusts | 7km/h (4mph) | 11km/h (7mph) | 7km/h (4mph) | 3km/h (2mph) | 1km/h (1mph) | 8km/h (5mph) | 24km/h (15mph) | 51km/h (32mph) |
| Direction | 298° WNW | 286° WNW | 319° NW | 299° WNW | 337° NNW | 265° W | 173° S | 172° S |
| Wind chill | 9°C (49°F) | 8°C (46°F) | 9°C (47°F) | 9°C (49°F) | 9°C (49°F) | 11°C (52°F) | 11°C (52°F) | 15°C (59°F) |
| Waves | ||||||||
| Height | 0.6m (2.1ft) | 0.6m (2.0ft) | 0.6m (1.9ft) | 0.6m (1.9ft) | 0.7m (2.2ft) | 0.8m (2.6ft) | 0.8m (2.8ft) | 0.9m (2.9ft) |
| Direction | 155° SSE | 155° SSE | 155° SSE | 154° SSE | 153° SSE | 152° SSE | 152° SSE | 148° SSE |
| Period | 5.9 sec. | 5.7 sec. | 5.6 sec. | 5.6 sec. | 6.0 sec. | 6.4 sec. | 6.7 sec. | 6.9 sec. |
| Significant height | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |