Sea weather in Nanao in Japan All the beach weather in Nanao

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

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

Date Outside temp. Our opinion
Monday 15 December 202543°F to 49°Fnot recommended
Tuesday 16 December 202543°F to 50°Fdiscouraged
Wednesday 17 December 202543°F to 47°Fdiscouraged
Thursday 18 December 202540°F to 47°Fdiscouraged
Friday 19 December 202547°F to 54°Frecommended
Saturday 20 December 202552°F to 58°Frecommended
Sunday 21 December 202554°F to 58°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Nanao

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:58 and will set at 16:36 on the beach(es) of Nanao. The outside temperature will be a high of 49°F t and a low of 43°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 36mph). Wave height will be up to 6.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)9°C (47°F)8°C (46°F)7°C (45°F)7°C (44°F)7°C (44°F)7°C (44°F)6°C (43°F)
Perceived temperature4°C (40°F)4°C (39°F)3°C (38°F)3°C (37°F)2°C (36°F)3°C (37°F)4°C (39°F)3°C (38°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%69%72%67%67%62%60%72%
Barometric pressure1010 hPa1013 hPa1016 hPa1020 hPa1021 hPa1022 hPa1023 hPa1023 hPa
Cloud cover100%100%71%81%52%70%100%86%
Heat index9°C (48°F)9°C (47°F)8°C (46°F)7°C (45°F)7°C (44°F)7°C (44°F)7°C (44°F)6°C (43°F)
Dew point4°C (39°F)3°C (38°F)3°C (38°F)2°C (35°F)1°C (33°F)-0°C (32°F)-0°C (31°F)1°C (35°F)
Wind
Speed48km/h (30mph)41km/h (25mph)38km/h (24mph)40km/h (25mph)29km/h (18mph)21km/h (13mph)13km/h (8mph)15km/h (9mph)
Gusts49km/h (30mph)46km/h (29mph)52km/h (32mph)58km/h (36mph)37km/h (23mph)30km/h (18mph)20km/h (12mph)21km/h (13mph)
Direction 309°
NW
315°
NW
311°
NW
300°
WNW
290°
WNW
284°
WNW
258°
WSW
215°
SW
Wind chill4°C (40°F)4°C (39°F)3°C (38°F)3°C (37°F)2°C (36°F)3°C (37°F)4°C (39°F)3°C (38°F)
Waves
Height1.3m (4.2ft)1.5m (4.9ft)2.1m (6.9ft)2.1m (7.0ft)2.0m (6.4ft)1.8m (6.1ft)1.7m (5.6ft)1.6m (5.2ft)
Direction 317°
NW
351°
N
359°
N

N

N

N

N
11°
NNE
Period5.1 sec.5.1 sec.11.0 sec.10.9 sec.10.4 sec.10.0 sec.10.0 sec.10.0 sec.
Significant height1.5m (4.9ft)1.3m (4.3ft)1.1m (3.6ft)1.1m (3.6ft)0.9m (3ft)0.6m (2ft)0.4m (1.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:59 and will set at 16:36 on the beach(es) of Nanao. The outside temperature will be a high of 50°F t and a low of 43°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 20.5mph km/h (with gusts up to 30.5mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (43°F)6°C (43°F)6°C (44°F)9°C (47°F)9°C (49°F)10°C (50°F)10°C (49°F)10°C (49°F)
Perceived temperature3°C (37°F)2°C (36°F)2°C (36°F)5°C (40°F)6°C (42°F)7°C (44°F)6°C (43°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%69%68%61%64%70%74%76%
Barometric pressure1023 hPa1023 hPa1023 hPa1022 hPa1020 hPa1020 hPa1021 hPa1021 hPa
Cloud cover14%26%68%34%100%100%60%100%
Heat index6°C (43°F)6°C (43°F)6°C (44°F)9°C (47°F)9°C (49°F)10°C (50°F)10°C (49°F)10°C (49°F)
Dew point2°C (35°F)1°C (34°F)1°C (34°F)1°C (35°F)3°C (37°F)5°C (41°F)5°C (41°F)5°C (42°F)
Wind
Speed18km/h (11mph)22km/h (13mph)26km/h (16mph)30km/h (18mph)28km/h (17mph)31km/h (19mph)33km/h (21mph)20km/h (12mph)
Gusts24km/h (15mph)29km/h (18mph)35km/h (22mph)38km/h (24mph)38km/h (24mph)42km/h (26mph)49km/h (31mph)31km/h (19mph)
Direction 202°
SSW
198°
SSW
193°
SSW
189°
S
222°
SW
212°
SSW
206°
SSW
241°
WSW
Wind chill3°C (37°F)2°C (36°F)2°C (36°F)5°C (40°F)6°C (42°F)7°C (44°F)6°C (43°F)7°C (44°F)
Waves
Height1.4m (4.8ft)1.3m (4.3ft)1.2m (3.9ft)1.1m (3.7ft)1.1m (3.5ft)1.1m (3.5ft)1.0m (3.2ft)0.8m (2.6ft)
Direction 13°
NNE
15°
NNE
12°
NNE
13°
NNE
13°
NNE
14°
NNE
14°
NNE

N
Period9.8 sec.9.7 sec.9.5 sec.9.1 sec.9.0 sec.8.9 sec.8.7 sec.8.5 sec.
Significant height0.4m (1.3ft)0.6m (2ft)0.7m (2.3ft)0.9m (3ft)1.0m (3.3ft)1.2m (3.9ft)1.0m (3.3ft)0.5m (1.6ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:59 and will set at 16:37 on the beach(es) of Nanao. The outside temperature will be a high of 47°F t and a low of 43°F. Precipitation is in the forecast (0.4in 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 21.1mph km/h (with gusts up to 28mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)7°C (45°F)7°C (44°F)7°C (44°F)7°C (44°F)6°C (43°F)6°C (44°F)7°C (44°F)
Perceived temperature7°C (44°F)3°C (38°F)3°C (37°F)3°C (37°F)2°C (36°F)1°C (34°F)2°C (35°F)2°C (36°F)
Precipitation0.1in0.1in0in0in0in0in0in0in
Humidity88%92%94%95%95%97%88%90%
Barometric pressure1021 hPa1021 hPa1021 hPa1022 hPa1020 hPa1021 hPa1023 hPa1024 hPa
Cloud cover100%100%100%100%100%100%100%100%
Heat index8°C (47°F)7°C (45°F)7°C (44°F)7°C (44°F)7°C (44°F)6°C (43°F)6°C (44°F)7°C (44°F)
Dew point6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (42°F)5°C (42°F)5°C (40°F)5°C (41°F)
Wind
Speed8km/h (5mph)22km/h (14mph)24km/h (15mph)27km/h (17mph)25km/h (15mph)34km/h (21mph)33km/h (21mph)30km/h (19mph)
Gusts11km/h (7mph)31km/h (19mph)30km/h (18mph)35km/h (22mph)33km/h (20mph)45km/h (28mph)43km/h (27mph)39km/h (24mph)
Direction 304°
WNW
13°
NNE
41°
NE
48°
NE
57°
ENE
28°
NNE
47°
NE
35°
NE
Wind chill7°C (44°F)3°C (38°F)3°C (37°F)3°C (37°F)2°C (36°F)1°C (34°F)2°C (35°F)2°C (36°F)
Waves
Height0.7m (2.2ft)1.0m (3.3ft)1.2m (4.0ft)1.3m (4.2ft)1.3m (4.2ft)1.2m (3.9ft)1.1m (3.7ft)1.1m (3.5ft)
Direction
N
10°
N

N

N

N

N

N

N
Period8.3 sec.8.3 sec.8.3 sec.8.3 sec.8.3 sec.8.3 sec.8.5 sec.8.5 sec.
Significant height0.2m (0.7ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)0.9m (3ft)0.6m (2ft)0.7m (2.3ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 07:00 and will set at 16:37 on the beach(es) of Nanao. 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 14.3mph km/h (with gusts up to 17.4mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (44°F)7°C (44°F)7°C (45°F)8°C (46°F)8°C (46°F)7°C (45°F)5°C (40°F)8°C (47°F)
Perceived temperature3°C (37°F)4°C (38°F)5°C (40°F)5°C (41°F)6°C (42°F)5°C (41°F)2°C (36°F)8°C (46°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity87%74%68%68%64%61%64%64%
Barometric pressure1025 hPa1026 hPa1027 hPa1028 hPa1026 hPa1026 hPa1027 hPa1026 hPa
Cloud cover100%92%89%79%41%4%0%0%
Heat index6°C (44°F)7°C (44°F)7°C (45°F)8°C (46°F)8°C (46°F)7°C (45°F)5°C (40°F)8°C (47°F)
Dew point4°C (40°F)2°C (36°F)2°C (35°F)2°C (36°F)2°C (35°F)0°C (32°F)-2°C (29°F)2°C (36°F)
Wind
Speed23km/h (14mph)17km/h (11mph)14km/h (9mph)17km/h (10mph)14km/h (9mph)10km/h (6mph)10km/h (6mph)6km/h (4mph)
Gusts28km/h (17mph)22km/h (14mph)19km/h (12mph)21km/h (13mph)19km/h (12mph)18km/h (11mph)22km/h (14mph)10km/h (6mph)
Direction
N
21°
NNE
36°
NE
55°
NE
73°
ENE
63°
ENE
74°
ENE
103°
ESE
Wind chill3°C (37°F)4°C (38°F)5°C (40°F)5°C (41°F)6°C (42°F)5°C (41°F)2°C (36°F)8°C (46°F)
Waves
Height1.0m (3.4ft)0.9m (3.1ft)0.9m (2.8ft)0.8m (2.6ft)0.7m (2.4ft)0.7m (2.4ft)0.7m (2.3ft)0.7m (2.3ft)
Direction
N
359°
N
357°
N
356°
N
355°
N
356°
N
357°
N
359°
N
Period8.5 sec.8.5 sec.8.3 sec.8.2 sec.8.1 sec.8.0 sec.8.0 sec.8.4 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 07:01 and will set at 16:37 on the beach(es) of Nanao. The outside temperature will be a high of 54°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 13.7mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)8°C (46°F)8°C (46°F)9°C (48°F)9°C (49°F)10°C (50°F)8°C (47°F)11°C (53°F)
Perceived temperature6°C (43°F)5°C (42°F)5°C (42°F)6°C (43°F)8°C (46°F)10°C (50°F)7°C (45°F)10°C (50°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity68%63%63%59%50%44%43%53%
Barometric pressure1026 hPa1027 hPa1027 hPa1027 hPa1026 hPa1026 hPa1025 hPa1025 hPa
Cloud cover5%0%4%1%3%3%0%0%
Heat index8°C (46°F)8°C (46°F)8°C (46°F)9°C (48°F)9°C (49°F)10°C (50°F)8°C (47°F)11°C (53°F)
Dew point2°C (36°F)1°C (34°F)1°C (34°F)1°C (34°F)-1°C (31°F)-2°C (29°F)-4°C (26°F)2°C (36°F)
Wind
Speed11km/h (7mph)14km/h (9mph)15km/h (9mph)16km/h (10mph)9km/h (5mph)5km/h (3mph)6km/h (4mph)12km/h (7mph)
Gusts16km/h (10mph)21km/h (13mph)22km/h (14mph)22km/h (14mph)15km/h (9mph)10km/h (6mph)12km/h (8mph)18km/h (11mph)
Direction 183°
S
191°
S
195°
SSW
192°
SSW
185°
S
132°
SE
112°
ESE
175°
S
Wind chill6°C (43°F)5°C (42°F)5°C (42°F)6°C (43°F)8°C (46°F)10°C (50°F)7°C (45°F)10°C (50°F)
Waves
Height0.7m (2.2ft)0.6m (2.1ft)0.6m (1.9ft)0.5m (1.8ft)0.5m (1.5ft)0.4m (1.3ft)0.4m (1.2ft)0.3m (1.0ft)
Direction
N

N

N

N

N
10°
N

N
10°
N
Period8.3 sec.8.2 sec.8.2 sec.8.1 sec.8.0 sec.7.9 sec.7.6 sec.7.4 sec.
Significant height0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 07:01 and will set at 16:38 on the beach(es) of Nanao. The outside temperature will be a high of 58°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 12.4mph km/h (with gusts up to 20.5mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (51°F)11°C (52°F)12°C (53°F)12°C (54°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)
Perceived temperature9°C (48°F)9°C (48°F)10°C (49°F)10°C (50°F)12°C (54°F)14°C (58°F)14°C (58°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity56%52%60%60%64%63%65%67%
Barometric pressure1024 hPa1024 hPa1025 hPa1025 hPa1023 hPa1023 hPa1024 hPa1023 hPa
Cloud cover0%5%78%100%100%100%59%67%
Heat index11°C (51°F)11°C (52°F)12°C (53°F)12°C (54°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)
Dew point2°C (36°F)2°C (35°F)4°C (39°F)5°C (41°F)7°C (45°F)7°C (45°F)7°C (45°F)8°C (46°F)
Wind
Speed15km/h (10mph)16km/h (10mph)16km/h (10mph)20km/h (13mph)16km/h (10mph)5km/h (3mph)4km/h (2mph)8km/h (5mph)
Gusts24km/h (15mph)26km/h (16mph)26km/h (16mph)33km/h (20mph)27km/h (17mph)8km/h (5mph)6km/h (4mph)13km/h (8mph)
Direction 186°
S
175°
S
218°
SW
216°
SW
218°
SW
232°
SW
187°
S
145°
SE
Wind chill9°C (48°F)9°C (48°F)10°C (49°F)10°C (50°F)12°C (54°F)14°C (58°F)14°C (58°F)14°C (57°F)
Waves
Height0.3m (0.9ft)0.2m (0.7ft)0.2m (0.6ft)0.1m (0.4ft)0.4m (1.3ft)0.6m (1.8ft)0.2m (0.6ft)0.4m (1.3ft)
Direction 12°
NNE

N
10°
N
11°
NNE
13°
NNE
13°
NNE
10°
N

N
Period7.3 sec.7.1 sec.6.9 sec.6.8 sec.6.7 sec.6.7 sec.6.7 sec.6.7 sec.
Significant height0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.5m (1.6ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather on Sunday 21 December 2025

On Sunday 21 December 2025, the sun will rise at 07:02 and will set at 16:38 on the beach(es) of Nanao. The outside temperature will be a high of 58°F t and a low of 54°F. Precipitation is in the forecast (0.4in 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 13.1mph km/h (with gusts up to 19.3mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (58°F)14°C (58°F)13°C (56°F)12°C (54°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)
Perceived temperature15°C (59°F)14°C (58°F)13°C (56°F)13°C (55°F)12°C (53°F)11°C (52°F)11°C (52°F)12°C (53°F)
Precipitation0in0in0in0in0.1in0.1in0.1in0.1in
Humidity65%63%72%92%92%93%96%95%
Barometric pressure1021 hPa1018 hPa1017 hPa1015 hPa1011 hPa1008 hPa1008 hPa1007 hPa
Cloud cover52%46%87%73%96%100%100%100%
Heat index14°C (58°F)14°C (58°F)13°C (56°F)12°C (54°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)
Dew point8°C (46°F)7°C (45°F)8°C (47°F)11°C (52°F)12°C (53°F)12°C (53°F)12°C (54°F)12°C (54°F)
Wind
Speed4km/h (2mph)3km/h (2mph)5km/h (3mph)4km/h (2mph)14km/h (9mph)21km/h (13mph)20km/h (13mph)15km/h (10mph)
Gusts6km/h (4mph)5km/h (3mph)7km/h (5mph)6km/h (4mph)21km/h (13mph)31km/h (19mph)31km/h (19mph)23km/h (14mph)
Direction 64°
ENE
181°
S
169°
SSE
106°
ESE
54°
NE
77°
ENE
118°
ESE
217°
SW
Wind chill15°C (59°F)14°C (58°F)13°C (56°F)13°C (55°F)12°C (53°F)11°C (52°F)11°C (52°F)12°C (53°F)
Waves
Height0.1m (0.4ft)0.1m (0.4ft)0.1m (0.4ft)0.3m (1.1ft)0.2m (0.5ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.5ft)
Direction 47°
NE
342°
NNW
345°
NNW
347°
NNW
349°
NNW

N
25°
NNE
31°
NNE
Period5.0 sec.4.6 sec.4.3 sec.4.1 sec.3.9 sec.3.7 sec.3.6 sec.2.9 sec.
Significant height0.3m (1ft)0.1m (0.3ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)
Sea water temperature
Water temperature16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)16°C (61°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units