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. Our opinion
Saturday 13 December 202536°F to 45°Fdiscouraged
Sunday 14 December 202538°F to 49°Fnot recommended
Monday 15 December 202541°F to 47°Fnot recommended
Tuesday 16 December 202540°F to 50°Frecommended
Wednesday 17 December 202540°F to 45°Fdiscouraged
Thursday 18 December 202536°F to 43°Fdiscouraged
Friday 19 December 202538°F to 43°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Sendai (Honshu)

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 06:44 and will set at 16:16 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 16.8mph km/h (with gusts up to 22.4mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature2°C (36°F)2°C (36°F)2°C (36°F)3°C (38°F)5°C (41°F)6°C (42°F)5°C (42°F)7°C (44°F)
Perceived temperature-3°C (26°F)-2°C (28°F)-1°C (30°F)0°C (33°F)4°C (39°F)6°C (42°F)3°C (38°F)4°C (39°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity59%60%63%59%47%44%49%55%
Barometric pressure1026 hPa1027 hPa1028 hPa1029 hPa1027 hPa1026 hPa1025 hPa1024 hPa
Cloud cover4%53%41%49%77%54%66%76%
Heat index2°C (36°F)2°C (36°F)2°C (36°F)3°C (38°F)5°C (41°F)6°C (42°F)5°C (42°F)7°C (44°F)
Dew point-5°C (23°F)-5°C (24°F)-4°C (25°F)-4°C (25°F)-5°C (23°F)-6°C (22°F)-4°C (24°F)-2°C (29°F)
Wind
Speed27km/h (17mph)19km/h (12mph)14km/h (9mph)11km/h (7mph)5km/h (3mph)3km/h (2mph)10km/h (6mph)15km/h (9mph)
Gusts36km/h (22mph)26km/h (16mph)19km/h (12mph)15km/h (9mph)7km/h (4mph)4km/h (3mph)15km/h (9mph)21km/h (13mph)
Direction 311°
NW
316°
NW
326°
NNW
304°
NW
279°
W
341°
NNW
143°
SE
182°
S
Wind chill-3°C (26°F)-2°C (28°F)-1°C (30°F)0°C (33°F)4°C (39°F)6°C (42°F)3°C (38°F)4°C (39°F)
Waves
Height0.7m (2.2ft)0.6m (2.1ft)0.5m (1.6ft)0.4m (1.5ft)0.4m (1.4ft)0.4m (1.4ft)0.4m (1.4ft)0.4m (1.4ft)
Direction 104°
ESE
104°
ESE
105°
ESE
104°
ESE
103°
ESE
103°
ESE
104°
ESE
104°
ESE
Period12.0 sec.11.8 sec.11.5 sec.11.2 sec.12.6 sec.12.5 sec.12.2 sec.12.0 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)0.7m (2.3ft)0.4m (1.3ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)
Sea water temperature
Water temperature14°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 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:44 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 38°F. Precipitation is in the forecast (0.3in 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 31.1mph). Wave height will be up to 6.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (43°F)3°C (38°F)4°C (38°F)8°C (46°F)6°C (42°F)7°C (44°F)8°C (47°F)8°C (47°F)
Perceived temperature3°C (38°F)-1°C (30°F)-1°C (30°F)5°C (42°F)2°C (35°F)4°C (40°F)5°C (40°F)3°C (37°F)
Precipitation0in0.1in0in0in0in0in0in0in
Humidity67%88%96%90%95%84%70%57%
Barometric pressure1020 hPa1017 hPa1014 hPa1009 hPa1002 hPa999 hPa998 hPa995 hPa
Cloud cover100%100%100%100%100%87%82%77%
Heat index6°C (43°F)3°C (38°F)4°C (38°F)8°C (46°F)6°C (42°F)7°C (44°F)8°C (47°F)8°C (47°F)
Dew point0°C (33°F)1°C (34°F)3°C (37°F)6°C (43°F)5°C (41°F)4°C (40°F)3°C (38°F)0°C (32°F)
Wind
Speed13km/h (8mph)17km/h (10mph)22km/h (14mph)15km/h (9mph)22km/h (14mph)14km/h (9mph)28km/h (17mph)47km/h (29mph)
Gusts17km/h (11mph)21km/h (13mph)29km/h (18mph)22km/h (14mph)31km/h (19mph)21km/h (13mph)43km/h (27mph)50km/h (31mph)
Direction 195°
SSW
335°
NNW
354°
N
54°
NE
330°
NNW
316°
NW
271°
W
246°
WSW
Wind chill3°C (38°F)-1°C (30°F)-1°C (30°F)5°C (42°F)2°C (35°F)4°C (40°F)5°C (40°F)3°C (37°F)
Waves
Height0.4m (1.5ft)0.5m (1.6ft)0.6m (1.9ft)1.2m (4.1ft)1.5m (5.0ft)1.3m (4.4ft)1.3m (4.2ft)2.0m (6.5ft)
Direction 104°
ESE
104°
ESE
104°
ESE
97°
E
106°
ESE
114°
ESE
116°
ESE
132°
SE
Period12.0 sec.12.0 sec.11.9 sec.11.9 sec.6.4 sec.6.9 sec.7.3 sec.11.0 sec.
Significant height0.6m (2ft)0.7m (2.3ft)1.0m (3.3ft)1.3m (4.3ft)0.9m (3ft)0.8m (2.6ft)1.2m (3.9ft)1.4m (4.6ft)
Sea water temperature
Water temperature14°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 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 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! Be careful, the sea will be generally rough with a wind speed of up to 37.3mph km/h (with gusts up to 41mph). Wave height will be up to 6.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)7°C (45°F)6°C (44°F)6°C (43°F)7°C (44°F)6°C (42°F)5°C (42°F)5°C (41°F)
Perceived temperature2°C (36°F)1°C (34°F)1°C (34°F)1°C (34°F)2°C (35°F)1°C (34°F)1°C (34°F)1°C (34°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%74%71%69%62%60%61%57%
Barometric pressure996 hPa1000 hPa1006 hPa1011 hPa1012 hPa1014 hPa1017 hPa1019 hPa
Cloud cover75%72%85%83%16%24%100%60%
Heat index8°C (46°F)7°C (45°F)6°C (44°F)6°C (43°F)7°C (44°F)6°C (42°F)5°C (42°F)5°C (41°F)
Dew point3°C (37°F)3°C (37°F)2°C (35°F)1°C (34°F)-0°C (32°F)-1°C (30°F)-2°C (29°F)-3°C (27°F)
Wind
Speed59km/h (36mph)60km/h (37mph)45km/h (28mph)37km/h (23mph)38km/h (24mph)33km/h (21mph)25km/h (15mph)21km/h (13mph)
Gusts66km/h (41mph)61km/h (38mph)60km/h (37mph)46km/h (28mph)48km/h (30mph)46km/h (28mph)35km/h (22mph)30km/h (18mph)
Direction 267°
W
281°
WNW
296°
WNW
287°
WNW
286°
WNW
297°
WNW
310°
NW
277°
W
Wind chill2°C (36°F)1°C (34°F)1°C (34°F)1°C (34°F)2°C (35°F)1°C (34°F)1°C (34°F)1°C (34°F)
Waves
Height2.0m (6.7ft)1.8m (5.8ft)1.6m (5.3ft)1.3m (4.4ft)1.1m (3.7ft)1.0m (3.1ft)0.7m (2.3ft)0.6m (2.1ft)
Direction 134°
SE
134°
SE
135°
SE
132°
SE
130°
SE
125°
SE
119°
ESE
114°
ESE
Period10.9 sec.10.9 sec.11.0 sec.10.9 sec.10.5 sec.10.4 sec.9.9 sec.10.9 sec.
Significant height1.9m (6.2ft)1.8m (5.9ft)1.5m (4.9ft)1.1m (3.6ft)1.7m (5.6ft)1.3m (4.3ft)0.8m (2.6ft)0.9m (3ft)
Sea water temperature
Water temperature14°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 50°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 12.4mph km/h (with gusts up to 17.4mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (42°F)4°C (40°F)4°C (40°F)6°C (43°F)10°C (50°F)8°C (46°F)6°C (42°F)6°C (42°F)
Perceived temperature2°C (35°F)1°C (35°F)0°C (33°F)2°C (36°F)7°C (45°F)5°C (41°F)3°C (37°F)3°C (37°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity60%72%70%62%55%70%74%74%
Barometric pressure1020 hPa1020 hPa1019 hPa1018 hPa1015 hPa1016 hPa1018 hPa1019 hPa
Cloud cover45%39%10%17%97%70%82%57%
Heat index5°C (42°F)4°C (40°F)4°C (40°F)6°C (43°F)10°C (50°F)8°C (46°F)6°C (42°F)6°C (42°F)
Dew point-2°C (29°F)-0°C (32°F)-1°C (31°F)-1°C (30°F)1°C (34°F)3°C (37°F)1°C (35°F)1°C (34°F)
Wind
Speed17km/h (11mph)13km/h (8mph)18km/h (11mph)19km/h (12mph)20km/h (13mph)18km/h (11mph)13km/h (8mph)12km/h (8mph)
Gusts24km/h (15mph)18km/h (11mph)28km/h (17mph)26km/h (16mph)27km/h (17mph)25km/h (16mph)19km/h (12mph)17km/h (11mph)
Direction 256°
WSW
231°
SW
224°
SW
229°
SW
232°
SW
278°
W
311°
NW
323°
NW
Wind chill2°C (35°F)1°C (35°F)0°C (33°F)2°C (36°F)7°C (45°F)5°C (41°F)3°C (37°F)3°C (37°F)
Waves
Height0.6m (2.0ft)0.6m (1.9ft)0.6m (2.0ft)0.6m (2.1ft)0.7m (2.4ft)0.7m (2.2ft)0.6m (2.0ft)0.6m (1.9ft)
Direction 105°
ESE
102°
ESE
100°
E
88°
E
82°
E
82°
E
82°
E
82°
E
Period9.4 sec.12.1 sec.12.1 sec.9.4 sec.9.1 sec.12.9 sec.4.4 sec.4.4 sec.
Significant height0.6m (2ft)0.7m (2.3ft)0.8m (2.6ft)0.9m (3ft)1.0m (3.3ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature14°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 45°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 14.3mph km/h (with gusts up to 20.5mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (41°F)4°C (40°F)4°C (39°F)5°C (41°F)6°C (43°F)7°C (44°F)5°C (41°F)5°C (41°F)
Perceived temperature2°C (36°F)1°C (33°F)1°C (33°F)1°C (35°F)2°C (36°F)3°C (38°F)2°C (36°F)2°C (35°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%76%74%59%48%50%59%62%
Barometric pressure1019 hPa1019 hPa1020 hPa1021 hPa1020 hPa1020 hPa1021 hPa1021 hPa
Cloud cover43%23%11%10%9%33%25%28%
Heat index5°C (41°F)4°C (40°F)4°C (39°F)5°C (41°F)6°C (43°F)7°C (44°F)5°C (41°F)5°C (41°F)
Dew point1°C (34°F)0°C (33°F)-0°C (31°F)-2°C (28°F)-4°C (25°F)-3°C (27°F)-2°C (28°F)-2°C (29°F)
Wind
Speed12km/h (7mph)15km/h (10mph)13km/h (8mph)18km/h (11mph)23km/h (14mph)21km/h (13mph)15km/h (9mph)15km/h (9mph)
Gusts17km/h (10mph)22km/h (14mph)20km/h (12mph)24km/h (15mph)33km/h (20mph)29km/h (18mph)24km/h (15mph)21km/h (13mph)
Direction 324°
NW
326°
NW
325°
NW
311°
NW
303°
WNW
303°
WNW
311°
NW
288°
WNW
Wind chill2°C (36°F)1°C (33°F)1°C (33°F)1°C (35°F)2°C (36°F)3°C (38°F)2°C (36°F)2°C (35°F)
Waves
Height0.5m (1.6ft)0.5m (1.5ft)0.5m (1.5ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.7ft)0.5m (1.6ft)0.5m (1.5ft)
Direction 83°
E
85°
E
86°
E
87°
E
88°
E
88°
E
89°
E
85°
E
Period12.3 sec.12.0 sec.11.8 sec.11.6 sec.11.3 sec.11.1 sec.10.8 sec.10.8 sec.
Significant height0.4m (1.3ft)0.5m (1.6ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature14°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 43°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 13.1mph km/h (with gusts up to 18mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (41°F)5°C (40°F)4°C (39°F)5°C (40°F)6°C (43°F)5°C (41°F)2°C (35°F)5°C (40°F)
Perceived temperature1°C (34°F)1°C (33°F)1°C (34°F)2°C (35°F)3°C (37°F)2°C (35°F)-2°C (29°F)3°C (37°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%60%57%54%46%46%55%58%
Barometric pressure1021 hPa1022 hPa1022 hPa1025 hPa1025 hPa1025 hPa1027 hPa1028 hPa
Cloud cover8%0%0%0%78%4%0%0%
Heat index5°C (41°F)5°C (40°F)4°C (39°F)5°C (40°F)6°C (43°F)5°C (41°F)2°C (35°F)5°C (40°F)
Dew point-1°C (30°F)-2°C (28°F)-4°C (25°F)-4°C (25°F)-5°C (24°F)-5°C (22°F)-6°C (20°F)-3°C (27°F)
Wind
Speed16km/h (10mph)21km/h (13mph)11km/h (7mph)11km/h (7mph)18km/h (11mph)16km/h (10mph)12km/h (8mph)7km/h (4mph)
Gusts23km/h (14mph)29km/h (18mph)16km/h (10mph)15km/h (9mph)23km/h (14mph)27km/h (17mph)26km/h (16mph)11km/h (7mph)
Direction 301°
WNW
307°
NW
309°
NW
331°
NNW
308°
NW
315°
NW
328°
NNW
296°
WNW
Wind chill1°C (34°F)1°C (33°F)1°C (34°F)2°C (35°F)3°C (37°F)2°C (35°F)-2°C (29°F)3°C (37°F)
Waves
Height0.4m (1.4ft)0.4m (1.5ft)0.5m (1.6ft)0.4m (1.4ft)0.4m (1.4ft)0.4m (1.4ft)0.4m (1.3ft)0.4m (1.3ft)
Direction 86°
E
84°
E
85°
E
83°
E
84°
E
85°
E
83°
E
84°
E
Period12.5 sec.12.4 sec.11.9 sec.11.7 sec.11.5 sec.11.2 sec.11.1 sec.14.5 sec.
Significant height0.5m (1.6ft)0.7m (2.3ft)0.6m (2ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)
Sea water temperature
Water temperature14°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 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 5.6mph km/h (with gusts up to 12.4mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature4°C (39°F)4°C (38°F)3°C (38°F)4°C (40°F)4°C (39°F)5°C (40°F)4°C (40°F)6°C (43°F)
Perceived temperature2°C (35°F)1°C (34°F)2°C (35°F)4°C (39°F)3°C (37°F)2°C (36°F)2°C (36°F)4°C (40°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity62%63%63%58%49%52%56%62%
Barometric pressure1029 hPa1030 hPa1031 hPa1032 hPa1030 hPa1030 hPa1030 hPa1030 hPa
Cloud cover0%7%3%0%0%0%2%0%
Heat index4°C (39°F)4°C (38°F)3°C (38°F)4°C (40°F)4°C (39°F)5°C (40°F)4°C (40°F)6°C (43°F)
Dew point-3°C (27°F)-3°C (27°F)-3°C (27°F)-3°C (26°F)-6°C (22°F)-4°C (24°F)-4°C (26°F)-1°C (30°F)
Wind
Speed9km/h (5mph)9km/h (5mph)6km/h (4mph)4km/h (2mph)6km/h (4mph)9km/h (6mph)8km/h (5mph)7km/h (4mph)
Gusts13km/h (8mph)13km/h (8mph)9km/h (6mph)5km/h (3mph)12km/h (8mph)20km/h (12mph)17km/h (10mph)12km/h (7mph)
Direction 277°
W
273°
W
265°
W
286°
WNW
172°
S
158°
SSE
217°
SW
269°
W
Wind chill2°C (35°F)1°C (34°F)2°C (35°F)4°C (39°F)3°C (37°F)2°C (36°F)2°C (36°F)4°C (40°F)
Waves
Height0.4m (1.3ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.2ft)
Direction 84°
E
83°
E
83°
E
84°
E
86°
E
85°
E
86°
E
88°
E
Period14.3 sec.13.9 sec.13.5 sec.13.3 sec.13.2 sec.12.6 sec.12.4 sec.12.3 sec.
Significant height0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)
Sea water temperature
Water temperature14°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 chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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