Sea weather in Asahi in Japan All the beach weather in Asahi

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

Discover the best moment to go to the beach in Asahi in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Asahi. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Friday 5 December 202547°F to 52°Fdiscouraged
Saturday 6 December 202547°F to 58°Frecommended
Sunday 7 December 202550°F to 58°Frecommended
Monday 8 December 202552°F to 59°Fdiscouraged
Tuesday 9 December 202550°F to 56°Fdiscouraged
Wednesday 10 December 202549°F to 54°Frecommended
Thursday 11 December 202550°F to 56°Frecommended

Sea Weather: Your daily and hourly sea weather in Asahi

Sea weather on Friday 5 December 2025

On Friday 5 December 2025, the sun will rise at 06:31 and will set at 16:23 on the beach(es) of Asahi. 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! 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 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (47°F)9°C (47°F)8°C (47°F)9°C (47°F)9°C (48°F)11°C (51°F)9°C (48°F)10°C (50°F)
Perceived temperature9°C (47°F)6°C (43°F)5°C (41°F)6°C (43°F)9°C (48°F)9°C (49°F)6°C (43°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity30%37%52%43%34%34%52%48%
Barometric pressure1014 hPa1013 hPa1014 hPa1015 hPa1014 hPa1015 hPa1018 hPa1020 hPa
Cloud cover52%9%0%3%2%46%87%3%
Heat index9°C (47°F)9°C (47°F)8°C (47°F)9°C (47°F)9°C (48°F)11°C (51°F)9°C (48°F)10°C (50°F)
Dew point-8°C (18°F)-5°C (23°F)-1°C (30°F)-3°C (26°F)-6°C (21°F)-5°C (24°F)-0°C (32°F)-1°C (31°F)
Wind
Speed4km/h (2mph)15km/h (10mph)23km/h (14mph)14km/h (9mph)2km/h (1mph)11km/h (7mph)21km/h (13mph)10km/h (6mph)
Gusts5km/h (3mph)21km/h (13mph)31km/h (19mph)17km/h (11mph)4km/h (2mph)15km/h (9mph)34km/h (21mph)14km/h (9mph)
Direction 306°
NW
280°
W
254°
WSW
311°
NW
18°
NNE

N

N
24°
NNE
Wind chill9°C (47°F)6°C (43°F)5°C (41°F)6°C (43°F)9°C (48°F)9°C (49°F)6°C (43°F)8°C (47°F)
Waves
Height0.9m (3.1ft)0.9m (3.1ft)1.0m (3.1ft)1.0m (3.2ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.1ft)
Direction 64°
ENE
65°
ENE
71°
ENE
71°
ENE
69°
ENE
67°
ENE
65°
ENE
63°
ENE
Period13.1 sec.12.9 sec.13.0 sec.12.8 sec.12.7 sec.12.7 sec.12.7 sec.12.7 sec.
Significant height0.8m (2.6ft)1.1m (3.6ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Saturday 6 December 2025

On Saturday 6 December 2025, the sun will rise at 06:32 and will set at 16:23 on the beach(es) of Asahi. The outside temperature will be a high of 58°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! The sea will be generally calm, with a wind speed of up to 9.9mph km/h (with gusts up to 14.9mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (49°F)9°C (48°F)8°C (47°F)9°C (49°F)11°C (52°F)13°C (55°F)14°C (56°F)13°C (56°F)
Perceived temperature9°C (48°F)7°C (45°F)7°C (44°F)9°C (48°F)11°C (53°F)12°C (54°F)12°C (54°F)12°C (54°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity45%48%49%44%41%52%60%62%
Barometric pressure1021 hPa1022 hPa1024 hPa1025 hPa1023 hPa1023 hPa1022 hPa1021 hPa
Cloud cover0%0%0%0%13%75%69%89%
Heat index10°C (49°F)9°C (48°F)8°C (47°F)9°C (49°F)11°C (52°F)13°C (55°F)14°C (56°F)13°C (56°F)
Dew point-2°C (29°F)-2°C (29°F)-2°C (29°F)-2°C (28°F)-2°C (29°F)3°C (38°F)6°C (43°F)6°C (43°F)
Wind
Speed6km/h (4mph)9km/h (6mph)10km/h (6mph)6km/h (4mph)3km/h (2mph)11km/h (7mph)16km/h (10mph)15km/h (10mph)
Gusts8km/h (5mph)14km/h (9mph)15km/h (9mph)8km/h (5mph)5km/h (3mph)15km/h (9mph)24km/h (15mph)22km/h (14mph)
Direction 309°
NW
300°
WNW
323°
NW
311°
NW
28°
NNE
180°
S
207°
SSW
241°
WSW
Wind chill9°C (48°F)7°C (45°F)7°C (44°F)9°C (48°F)11°C (53°F)12°C (54°F)12°C (54°F)12°C (54°F)
Waves
Height0.9m (3.1ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (2.9ft)0.8m (2.8ft)0.8m (2.6ft)0.8m (2.7ft)1.0m (3.4ft)
Direction 63°
ENE
62°
ENE
62°
ENE
62°
ENE
62°
ENE
62°
ENE
62°
ENE
62°
ENE
Period12.7 sec.15.4 sec.15.0 sec.14.8 sec.14.9 sec.15.1 sec.15.2 sec.15.3 sec.
Significant height0.8m (2.6ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)1.0m (3.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Sunday 7 December 2025

On Sunday 7 December 2025, the sun will rise at 06:33 and will set at 16:23 on the beach(es) of Asahi. The outside temperature will be a high of 58°F t and a low of 50°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 15.5mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)12°C (53°F)10°C (51°F)11°C (52°F)11°C (51°F)11°C (51°F)10°C (50°F)14°C (57°F)
Perceived temperature12°C (53°F)10°C (50°F)9°C (48°F)10°C (50°F)10°C (50°F)9°C (49°F)9°C (48°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity58%61%52%50%41%42%49%49%
Barometric pressure1020 hPa1019 hPa1019 hPa1020 hPa1018 hPa1018 hPa1019 hPa1019 hPa
Cloud cover71%16%0%0%0%0%0%0%
Heat index13°C (55°F)12°C (53°F)10°C (51°F)11°C (52°F)11°C (51°F)11°C (51°F)10°C (50°F)14°C (57°F)
Dew point4°C (40°F)4°C (40°F)1°C (34°F)1°C (34°F)-2°C (29°F)-2°C (29°F)0°C (32°F)3°C (38°F)
Wind
Speed11km/h (7mph)16km/h (10mph)11km/h (7mph)10km/h (6mph)8km/h (5mph)12km/h (7mph)10km/h (6mph)1km/h (1mph)
Gusts15km/h (9mph)23km/h (14mph)16km/h (10mph)13km/h (8mph)15km/h (9mph)25km/h (15mph)20km/h (13mph)2km/h (1mph)
Direction 268°
W
260°
W
266°
W
310°
NW
328°
NNW

N
46°
NE
332°
NNW
Wind chill12°C (53°F)10°C (50°F)9°C (48°F)10°C (50°F)10°C (50°F)9°C (49°F)9°C (48°F)14°C (57°F)
Waves
Height1.0m (3.1ft)0.9m (3.1ft)0.9m (2.9ft)0.8m (2.5ft)0.7m (2.2ft)0.6m (2.1ft)0.6m (1.9ft)0.6m (1.8ft)
Direction 63°
ENE
63°
ENE
63°
ENE
63°
ENE
62°
ENE
62°
ENE
62°
ENE
62°
ENE
Period4.7 sec.4.6 sec.4.7 sec.4.8 sec.14.9 sec.14.7 sec.14.6 sec.14.4 sec.
Significant height0.9m (3ft)1.0m (3.3ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Monday 8 December 2025

On Monday 8 December 2025, the sun will rise at 06:34 and will set at 16:23 on the beach(es) of Asahi. The outside temperature will be a high of 59°F t and a low of 52°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 13.7mph km/h (with gusts up to 18.6mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (53°F)11°C (52°F)12°C (54°F)12°C (54°F)15°C (60°F)14°C (56°F)14°C (56°F)
Perceived temperature11°C (52°F)11°C (51°F)10°C (50°F)11°C (52°F)11°C (53°F)15°C (60°F)13°C (56°F)12°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity53%49%48%39%27%30%36%61%
Barometric pressure1018 hPa1017 hPa1017 hPa1017 hPa1015 hPa1014 hPa1015 hPa1016 hPa
Cloud cover3%3%6%0%0%100%7%100%
Heat index12°C (54°F)12°C (53°F)11°C (52°F)12°C (54°F)12°C (54°F)15°C (60°F)14°C (56°F)14°C (56°F)
Dew point3°C (37°F)1°C (34°F)0°C (33°F)-1°C (30°F)-6°C (21°F)-2°C (28°F)-1°C (30°F)6°C (43°F)
Wind
Speed10km/h (6mph)10km/h (6mph)9km/h (5mph)9km/h (5mph)10km/h (6mph)12km/h (7mph)9km/h (6mph)22km/h (14mph)
Gusts16km/h (10mph)16km/h (10mph)14km/h (8mph)12km/h (7mph)18km/h (11mph)16km/h (10mph)16km/h (10mph)30km/h (19mph)
Direction 280°
W
301°
WNW
304°
WNW
248°
WSW
278°
W
265°
W
332°
NNW
26°
NNE
Wind chill11°C (52°F)11°C (51°F)10°C (50°F)11°C (52°F)11°C (53°F)15°C (60°F)13°C (56°F)12°C (53°F)
Waves
Height0.5m (1.8ft)0.5m (1.8ft)0.5m (1.8ft)0.6m (1.9ft)0.6m (2.0ft)0.6m (2.1ft)0.7m (2.2ft)0.7m (2.2ft)
Direction 62°
ENE
61°
ENE
61°
ENE
61°
ENE
61°
ENE
117°
ESE
117°
ESE
118°
ESE
Period14.1 sec.13.7 sec.8.6 sec.8.2 sec.7.7 sec.7.6 sec.7.7 sec.7.8 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.8m (2.6ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Tuesday 9 December 2025

On Tuesday 9 December 2025, the sun will rise at 06:34 and will set at 16:23 on the beach(es) of Asahi. The outside temperature will be a high of 56°F t and a low of 50°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 16.2mph km/h (with gusts up to 20.5mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)13°C (55°F)12°C (53°F)11°C (52°F)11°C (52°F)11°C (52°F)10°C (51°F)11°C (51°F)
Perceived temperature11°C (52°F)10°C (51°F)9°C (48°F)8°C (47°F)9°C (48°F)10°C (50°F)9°C (49°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity55%55%62%53%48%43%43%58%
Barometric pressure1017 hPa1017 hPa1019 hPa1021 hPa1021 hPa1021 hPa1023 hPa1024 hPa
Cloud cover16%68%75%12%19%28%14%73%
Heat index13°C (55°F)13°C (55°F)12°C (53°F)11°C (52°F)11°C (52°F)11°C (52°F)10°C (51°F)11°C (51°F)
Dew point4°C (39°F)4°C (39°F)5°C (40°F)2°C (35°F)0°C (33°F)-1°C (30°F)-2°C (29°F)3°C (37°F)
Wind
Speed17km/h (11mph)21km/h (13mph)26km/h (16mph)25km/h (15mph)18km/h (11mph)10km/h (6mph)9km/h (6mph)22km/h (14mph)
Gusts23km/h (15mph)28km/h (17mph)33km/h (20mph)30km/h (18mph)23km/h (14mph)14km/h (9mph)15km/h (9mph)29km/h (18mph)
Direction 11°
NNE

N
22°
NNE
17°
NNE
21°
NNE
41°
NE
51°
NE
41°
NE
Wind chill11°C (52°F)10°C (51°F)9°C (48°F)8°C (47°F)9°C (48°F)10°C (50°F)9°C (49°F)8°C (47°F)
Waves
Height0.7m (2.2ft)0.8m (2.5ft)1.1m (3.6ft)1.3m (4.3ft)1.3m (4.2ft)1.1m (3.7ft)1.2m (4.0ft)1.4m (4.6ft)
Direction 122°
ESE
120°
ESE
63°
ENE
57°
ENE
50°
NE
53°
NE
53°
NE
56°
ENE
Period7.3 sec.8.8 sec.8.8 sec.9.0 sec.9.1 sec.9.2 sec.9.1 sec.9.0 sec.
Significant height0.6m (2ft)0.7m (2.3ft)1.0m (3.3ft)1.2m (3.9ft)1.2m (3.9ft)1.0m (3.3ft)1.2m (3.9ft)1.2m (3.9ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Wednesday 10 December 2025

On Wednesday 10 December 2025, the sun will rise at 06:35 and will set at 16:23 on the beach(es) of Asahi. 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 12.4mph km/h (with gusts up to 16.2mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (50°F)10°C (49°F)9°C (49°F)10°C (51°F)10°C (50°F)11°C (51°F)11°C (52°F)12°C (54°F)
Perceived temperature7°C (45°F)7°C (44°F)7°C (45°F)8°C (47°F)8°C (47°F)10°C (51°F)11°C (52°F)12°C (54°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity53%52%52%51%54%53%57%62%
Barometric pressure1025 hPa1025 hPa1026 hPa1028 hPa1026 hPa1026 hPa1025 hPa1024 hPa
Cloud cover32%41%29%41%100%78%59%74%
Heat index10°C (50°F)10°C (49°F)9°C (49°F)10°C (51°F)10°C (50°F)11°C (51°F)11°C (52°F)12°C (54°F)
Dew point1°C (33°F)0°C (32°F)0°C (32°F)1°C (33°F)1°C (34°F)1°C (34°F)3°C (37°F)5°C (41°F)
Wind
Speed20km/h (13mph)18km/h (11mph)15km/h (9mph)15km/h (9mph)15km/h (10mph)5km/h (3mph)5km/h (3mph)5km/h (3mph)
Gusts26km/h (16mph)24km/h (15mph)20km/h (13mph)19km/h (11mph)20km/h (13mph)7km/h (4mph)8km/h (5mph)8km/h (5mph)
Direction 14°
NNE

N
12°
NNE
33°
NNE
47°
NE
67°
ENE
126°
SE
240°
WSW
Wind chill7°C (45°F)7°C (44°F)7°C (45°F)8°C (47°F)8°C (47°F)10°C (51°F)11°C (52°F)12°C (54°F)
Waves
Height1.4m (4.6ft)1.2m (3.8ft)1.0m (3.2ft)0.9m (2.9ft)0.8m (2.7ft)0.7m (2.5ft)0.7m (2.4ft)0.7m (2.3ft)
Direction 50°
NE
51°
NE
48°
NE
103°
ESE
103°
ESE
102°
ESE
95°
E
92°
E
Period9.1 sec.9.6 sec.6.4 sec.6.2 sec.6.0 sec.5.2 sec.10.5 sec.10.5 sec.
Significant height1.1m (3.6ft)0.9m (3ft)1.0m (3.3ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather on Thursday 11 December 2025

On Thursday 11 December 2025, the sun will rise at 06:36 and will set at 16:23 on the beach(es) of Asahi. The outside temperature will be a high of 56°F t and a low of 50°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 14.3mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)11°C (51°F)10°C (50°F)11°C (51°F)12°C (53°F)13°C (55°F)12°C (53°F)13°C (56°F)
Perceived temperature11°C (51°F)9°C (48°F)9°C (47°F)10°C (49°F)11°C (52°F)12°C (53°F)10°C (50°F)12°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity64%62%60%49%37%44%51%63%
Barometric pressure1023 hPa1022 hPa1022 hPa1021 hPa1019 hPa1019 hPa1020 hPa1019 hPa
Cloud cover70%100%97%100%91%88%4%43%
Heat index12°C (54°F)11°C (51°F)10°C (50°F)11°C (51°F)12°C (53°F)13°C (55°F)12°C (53°F)13°C (56°F)
Dew point6°C (42°F)4°C (39°F)3°C (37°F)0°C (33°F)-2°C (28°F)1°C (33°F)2°C (35°F)6°C (43°F)
Wind
Speed12km/h (7mph)14km/h (9mph)12km/h (8mph)8km/h (5mph)8km/h (5mph)10km/h (6mph)11km/h (7mph)15km/h (9mph)
Gusts16km/h (10mph)19km/h (12mph)17km/h (10mph)11km/h (7mph)11km/h (7mph)14km/h (8mph)23km/h (14mph)23km/h (14mph)
Direction 298°
WNW
315°
NW
313°
NW
275°
W
310°
NW
31°
NNE
73°
ENE
43°
NE
Wind chill11°C (51°F)9°C (48°F)9°C (47°F)10°C (49°F)11°C (52°F)12°C (53°F)10°C (50°F)12°C (53°F)
Waves
Height0.7m (2.2ft)0.7m (2.2ft)0.7m (2.2ft)0.7m (2.3ft)0.7m (2.5ft)0.8m (2.6ft)0.8m (2.8ft)0.8m (2.7ft)
Direction 89°
E
88°
E
87°
E
95°
E
94°
E
102°
ESE
102°
ESE
101°
ESE
Period10.3 sec.10.5 sec.10.2 sec.10.0 sec.4.4 sec.4.8 sec.5.2 sec.11.3 sec.
Significant height0.8m (2.6ft)0.9m (3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units