Sea weather in Kamaishi in Japan All the beach weather in Kamaishi

All the essential weather information for enjoying the beach in Kamaishi 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 Kamaishi over the next 7 days?

Discover the best moment to go to the beach in Kamaishi in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Kamaishi. 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 202538°F to 50°Fnot recommended
Monday 15 December 202532°F to 49°Fnot recommended
Tuesday 16 December 202538°F to 47°Fdiscouraged
Wednesday 17 December 202538°F to 41°Fdiscouraged
Thursday 18 December 202536°F to 40°Fnot recommended
Friday 19 December 202540°F to 47°Fdiscouraged
Saturday 20 December 202549°F to 54°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Kamaishi

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:44 and will set at 16:10 on the beach(es) of Kamaishi. The outside temperature will be a high of 50°F t and a low of 38°F. Precipitation is in the forecast (0.7in 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 28mph km/h (with gusts up to 37.9mph). Wave height will be up to 11.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature4°C (39°F)5°C (40°F)4°C (38°F)6°C (43°F)10°C (49°F)8°C (47°F)9°C (48°F)8°C (47°F)
Perceived temperature1°C (33°F)2°C (35°F)2°C (35°F)1°C (35°F)6°C (43°F)5°C (41°F)5°C (41°F)3°C (38°F)
Precipitation0in0in0.1in0.2in0.4in0in0in0in
Humidity56%63%96%93%94%84%72%67%
Barometric pressure1023 hPa1020 hPa1017 hPa1012 hPa1000 hPa993 hPa993 hPa993 hPa
Cloud cover92%100%100%100%100%100%50%0%
Heat index4°C (39°F)5°C (40°F)4°C (38°F)6°C (43°F)10°C (49°F)8°C (47°F)9°C (48°F)8°C (47°F)
Dew point-4°C (24°F)-2°C (28°F)3°C (38°F)5°C (41°F)9°C (48°F)6°C (42°F)4°C (39°F)2°C (36°F)
Wind
Speed12km/h (7mph)12km/h (8mph)8km/h (5mph)35km/h (21mph)27km/h (17mph)23km/h (14mph)34km/h (21mph)45km/h (28mph)
Gusts16km/h (10mph)17km/h (10mph)11km/h (7mph)45km/h (28mph)39km/h (25mph)38km/h (23mph)51km/h (32mph)61km/h (38mph)
Direction 216°
SW
197°
SSW
134°
SE
90°
E
55°
NE
314°
NW
265°
W
250°
WSW
Wind chill1°C (33°F)2°C (35°F)2°C (35°F)1°C (35°F)6°C (43°F)5°C (41°F)5°C (41°F)3°C (38°F)
Waves
Height0.7m (2.3ft)0.7m (2.2ft)0.7m (2.4ft)1.0m (3.4ft)1.9m (6.4ft)3.3m (10.9ft)3.0m (10.0ft)3.5m (11.4ft)
Direction 98°
E
95°
E
95°
E
91°
E
119°
ESE
136°
SE
129°
SE
148°
SSE
Period12.2 sec.12.1 sec.12.0 sec.11.7 sec.13.3 sec.8.5 sec.8.9 sec.11.0 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)1.0m (3.3ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (3.9ft)2.1m (6.9ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:45 and will set at 16:10 on the beach(es) of Kamaishi. The outside temperature will be a high of 49°F t and a low of 32°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 29.8mph km/h (with gusts up to 39.2mph). Wave height will be up to 12.1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)6°C (42°F)6°C (44°F)8°C (46°F)5°C (42°F)4°C (39°F)0°C (33°F)3°C (38°F)
Perceived temperature4°C (39°F)1°C (33°F)2°C (36°F)3°C (37°F)0°C (33°F)-1°C (30°F)-5°C (22°F)-1°C (30°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%90%73%66%61%59%59%61%
Barometric pressure991 hPa993 hPa998 hPa1004 hPa1007 hPa1011 hPa1015 hPa1017 hPa
Cloud cover100%94%61%8%2%2%0%0%
Heat index9°C (48°F)6°C (42°F)6°C (44°F)8°C (46°F)5°C (42°F)4°C (39°F)0°C (33°F)3°C (38°F)
Dew point4°C (38°F)4°C (39°F)2°C (35°F)2°C (35°F)-2°C (29°F)-3°C (26°F)-7°C (20°F)-4°C (26°F)
Wind
Speed48km/h (30mph)29km/h (18mph)28km/h (18mph)35km/h (22mph)33km/h (21mph)31km/h (19mph)23km/h (15mph)20km/h (12mph)
Gusts63km/h (39mph)36km/h (23mph)38km/h (24mph)45km/h (28mph)36km/h (23mph)36km/h (23mph)29km/h (18mph)28km/h (17mph)
Direction 233°
SW
340°
NNW
298°
WNW
300°
WNW
293°
WNW
297°
WNW
292°
WNW
289°
WNW
Wind chill4°C (39°F)1°C (33°F)2°C (36°F)3°C (37°F)0°C (33°F)-1°C (30°F)-5°C (22°F)-1°C (30°F)
Waves
Height3.7m (12.3ft)3.5m (11.4ft)3.0m (9.9ft)2.8m (9.3ft)2.6m (8.5ft)2.2m (7.1ft)1.8m (5.8ft)1.5m (4.8ft)
Direction 153°
SSE
157°
SSE
159°
SSE
160°
SSE
158°
SSE
142°
SE
110°
ESE
89°
E
Period10.9 sec.11.5 sec.11.4 sec.11.2 sec.11.0 sec.10.8 sec.10.3 sec.12.3 sec.
Significant height2.3m (7.5ft)1.0m (3.3ft)1.5m (4.9ft)2.2m (7.2ft)2.1m (6.9ft)1.6m (5.2ft)1.3m (4.3ft)1.2m (3.9ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:45 and will set at 16:10 on the beach(es) of Kamaishi. 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 24.2mph km/h (with gusts up to 31.1mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature3°C (38°F)4°C (39°F)4°C (40°F)6°C (42°F)8°C (46°F)7°C (45°F)5°C (42°F)5°C (42°F)
Perceived temperature-1°C (31°F)0°C (32°F)1°C (34°F)1°C (34°F)3°C (37°F)3°C (38°F)2°C (35°F)2°C (36°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity59%66%68%73%66%73%83%71%
Barometric pressure1019 hPa1019 hPa1020 hPa1019 hPa1015 hPa1015 hPa1016 hPa1017 hPa
Cloud cover6%66%41%22%79%75%46%10%
Heat index3°C (38°F)4°C (39°F)4°C (40°F)6°C (42°F)8°C (46°F)7°C (45°F)5°C (42°F)5°C (42°F)
Dew point-4°C (25°F)-2°C (29°F)-1°C (30°F)1°C (34°F)2°C (35°F)3°C (37°F)3°C (37°F)1°C (33°F)
Wind
Speed17km/h (11mph)17km/h (11mph)14km/h (9mph)26km/h (16mph)39km/h (24mph)30km/h (19mph)17km/h (11mph)14km/h (9mph)
Gusts23km/h (14mph)23km/h (14mph)20km/h (12mph)32km/h (20mph)50km/h (31mph)42km/h (26mph)26km/h (16mph)21km/h (13mph)
Direction 283°
WNW
251°
WSW
235°
SW
212°
SSW
219°
SW
236°
SW
265°
W
263°
W
Wind chill-1°C (31°F)0°C (32°F)1°C (34°F)1°C (34°F)3°C (37°F)3°C (38°F)2°C (35°F)2°C (36°F)
Waves
Height1.3m (4.2ft)1.2m (3.9ft)1.2m (4.0ft)1.3m (4.4ft)1.4m (4.5ft)1.3m (4.3ft)1.3m (4.4ft)1.3m (4.2ft)
Direction 76°
ENE
76°
ENE
75°
ENE
71°
ENE
66°
ENE
66°
ENE
73°
ENE
73°
ENE
Period12.3 sec.12.3 sec.12.5 sec.12.8 sec.12.9 sec.12.8 sec.12.4 sec.12.1 sec.
Significant height1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)1.4m (4.6ft)1.3m (4.3ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:46 and will set at 16:11 on the beach(es) of Kamaishi. The outside temperature will be a high of 41°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 11.8mph km/h (with gusts up to 18mph). Wave height will be up to 3.9ft 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)4°C (40°F)5°C (41°F)5°C (40°F)3°C (38°F)4°C (38°F)
Perceived temperature2°C (35°F)1°C (34°F)0°C (33°F)1°C (34°F)2°C (35°F)1°C (33°F)-1°C (31°F)0°C (32°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity64%59%60%57%54%58%61%60%
Barometric pressure1017 hPa1017 hPa1018 hPa1020 hPa1019 hPa1019 hPa1021 hPa1022 hPa
Cloud cover7%7%8%7%23%22%23%6%
Heat index5°C (41°F)5°C (40°F)4°C (39°F)4°C (40°F)5°C (41°F)5°C (40°F)3°C (38°F)4°C (38°F)
Dew point-2°C (29°F)-3°C (27°F)-3°C (27°F)-4°C (26°F)-3°C (26°F)-3°C (27°F)-4°C (25°F)-3°C (26°F)
Wind
Speed14km/h (9mph)16km/h (10mph)16km/h (10mph)14km/h (9mph)15km/h (10mph)19km/h (12mph)16km/h (10mph)14km/h (9mph)
Gusts20km/h (12mph)22km/h (14mph)22km/h (14mph)18km/h (11mph)22km/h (14mph)29km/h (18mph)25km/h (16mph)19km/h (12mph)
Direction 259°
WSW
256°
WSW
255°
WSW
246°
WSW
269°
W
271°
W
265°
W
269°
W
Wind chill2°C (35°F)1°C (34°F)0°C (33°F)1°C (34°F)2°C (35°F)1°C (33°F)-1°C (31°F)0°C (32°F)
Waves
Height1.2m (3.9ft)1.1m (3.6ft)1.0m (3.4ft)1.0m (3.2ft)0.9m (2.9ft)0.9m (2.9ft)0.9m (2.8ft)0.8m (2.7ft)
Direction 73°
ENE
72°
ENE
76°
ENE
76°
ENE
67°
ENE
68°
ENE
69°
ENE
72°
ENE
Period11.9 sec.11.6 sec.11.2 sec.11.0 sec.11.0 sec.10.9 sec.12.7 sec.12.0 sec.
Significant height1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:47 and will set at 16:11 on the beach(es) of Kamaishi. The outside temperature will be a high of 40°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 11.8mph km/h (with gusts up to 16.2mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature4°C (38°F)3°C (38°F)3°C (37°F)3°C (38°F)2°C (35°F)3°C (37°F)3°C (38°F)4°C (38°F)
Perceived temperature0°C (32°F)-1°C (30°F)-1°C (31°F)0°C (33°F)2°C (35°F)2°C (36°F)1°C (34°F)1°C (33°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity59%61%58%54%48%51%56%60%
Barometric pressure1022 hPa1023 hPa1024 hPa1026 hPa1026 hPa1026 hPa1027 hPa1028 hPa
Cloud cover9%2%3%2%0%3%23%6%
Heat index4°C (38°F)3°C (38°F)3°C (37°F)3°C (38°F)2°C (35°F)3°C (37°F)3°C (38°F)4°C (38°F)
Dew point-4°C (25°F)-4°C (26°F)-4°C (24°F)-5°C (23°F)-8°C (18°F)-6°C (21°F)-5°C (24°F)-3°C (26°F)
Wind
Speed15km/h (9mph)19km/h (12mph)14km/h (9mph)10km/h (6mph)1km/h (0mph)4km/h (2mph)9km/h (6mph)10km/h (6mph)
Gusts21km/h (13mph)26km/h (16mph)19km/h (12mph)14km/h (9mph)1km/h (1mph)7km/h (4mph)15km/h (10mph)15km/h (9mph)
Direction 281°
W
295°
WNW
298°
WNW
327°
NNW
204°
SSW
199°
SSW
295°
WNW
291°
WNW
Wind chill0°C (32°F)-1°C (30°F)-1°C (31°F)0°C (33°F)2°C (35°F)2°C (36°F)1°C (34°F)1°C (33°F)
Waves
Height0.8m (2.7ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.5ft)0.8m (2.5ft)0.8m (2.5ft)0.8m (2.5ft)0.8m (2.6ft)
Direction 67°
ENE
67°
ENE
67°
ENE
64°
ENE
64°
ENE
64°
ENE
62°
ENE
62°
ENE
Period11.9 sec.11.7 sec.11.0 sec.10.9 sec.14.6 sec.14.4 sec.13.9 sec.13.3 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 06:47 and will set at 16:11 on the beach(es) of Kamaishi. 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 16.8mph km/h (with gusts up to 26.1mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature4°C (38°F)4°C (39°F)4°C (39°F)5°C (41°F)7°C (45°F)8°C (46°F)6°C (43°F)8°C (47°F)
Perceived temperature1°C (34°F)1°C (34°F)2°C (35°F)3°C (37°F)4°C (39°F)4°C (40°F)2°C (36°F)5°C (41°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity62%61%61%55%54%65%72%74%
Barometric pressure1028 hPa1028 hPa1028 hPa1029 hPa1027 hPa1027 hPa1027 hPa1027 hPa
Cloud cover3%5%5%7%9%15%4%13%
Heat index4°C (38°F)4°C (39°F)4°C (39°F)5°C (41°F)7°C (45°F)8°C (46°F)6°C (43°F)8°C (47°F)
Dew point-3°C (26°F)-3°C (27°F)-3°C (27°F)-3°C (26°F)-1°C (29°F)2°C (36°F)2°C (35°F)4°C (39°F)
Wind
Speed9km/h (5mph)9km/h (6mph)8km/h (5mph)9km/h (5mph)18km/h (11mph)27km/h (17mph)24km/h (15mph)19km/h (12mph)
Gusts12km/h (8mph)13km/h (8mph)12km/h (7mph)12km/h (7mph)28km/h (17mph)42km/h (26mph)28km/h (18mph)32km/h (20mph)
Direction 286°
WNW
259°
W
271°
W
234°
SW
204°
SSW
204°
SSW
224°
SW
234°
SW
Wind chill1°C (34°F)1°C (34°F)2°C (35°F)3°C (37°F)4°C (39°F)4°C (40°F)2°C (36°F)5°C (41°F)
Waves
Height0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.5ft)0.8m (2.6ft)0.8m (2.8ft)0.9m (2.8ft)
Direction 64°
ENE
66°
ENE
70°
ENE
70°
ENE
70°
ENE
74°
ENE
75°
ENE
76°
ENE
Period13.1 sec.12.9 sec.12.4 sec.12.1 sec.11.8 sec.11.6 sec.11.2 sec.11.0 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)1.0m (3.3ft)0.8m (2.6ft)1.0m (3.3ft)1.1m (3.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 06:48 and will set at 16:12 on the beach(es) of Kamaishi. The outside temperature will be a high of 54°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 14.3mph km/h (with gusts up to 21.1mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)9°C (48°F)9°C (48°F)10°C (50°F)11°C (51°F)12°C (53°F)11°C (52°F)11°C (52°F)
Perceived temperature6°C (43°F)6°C (43°F)6°C (43°F)8°C (46°F)8°C (47°F)9°C (48°F)9°C (49°F)10°C (49°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%77%67%56%61%68%69%70%
Barometric pressure1025 hPa1026 hPa1026 hPa1026 hPa1024 hPa1024 hPa1025 hPa1025 hPa
Cloud cover5%18%0%0%2%24%74%24%
Heat index9°C (48°F)9°C (48°F)9°C (48°F)10°C (50°F)11°C (51°F)12°C (53°F)11°C (52°F)11°C (52°F)
Dew point5°C (41°F)5°C (41°F)3°C (37°F)2°C (35°F)3°C (38°F)6°C (43°F)6°C (43°F)6°C (43°F)
Wind
Speed20km/h (13mph)18km/h (11mph)16km/h (10mph)17km/h (11mph)19km/h (12mph)23km/h (15mph)16km/h (10mph)14km/h (9mph)
Gusts34km/h (21mph)31km/h (19mph)28km/h (17mph)28km/h (18mph)25km/h (15mph)26km/h (16mph)31km/h (19mph)27km/h (17mph)
Direction 243°
WSW
253°
WSW
242°
WSW
230°
SW
209°
SSW
206°
SSW
231°
SW
232°
SW
Wind chill6°C (43°F)6°C (43°F)6°C (43°F)8°C (46°F)8°C (47°F)9°C (48°F)9°C (49°F)10°C (49°F)
Waves
Height0.9m (3.0ft)0.9m (3.1ft)0.9m (2.9ft)0.8m (2.8ft)0.8m (2.7ft)0.8m (2.7ft)0.8m (2.5ft)0.7m (2.4ft)
Direction 77°
ENE
78°
ENE
79°
E
80°
E
79°
E
80°
E
81°
E
82°
E
Period10.9 sec.10.8 sec.5.1 sec.5.2 sec.5.3 sec.5.3 sec.5.2 sec.5.3 sec.
Significant height1.0m (3.3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units