Sea weather in Sasebo in Japan All the beach weather in Sasebo

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

Discover the best moment to go to the beach in Sasebo in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Sasebo. 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 202549°F to 54°Fnot recommended
Monday 15 December 202541°F to 50°Fdiscouraged
Tuesday 16 December 202549°F to 58°Frecommended
Wednesday 17 December 202556°F to 61°Fdiscouraged
Thursday 18 December 202545°F to 56°Fdiscouraged
Friday 19 December 202550°F to 61°Frecommended
Saturday 20 December 202558°F to 65°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Sasebo

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 07:16 and will set at 17:16 on the beach(es) of Sasebo. 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! Be careful, the sea will be generally rough with a wind speed of up to 27.3mph km/h (with gusts up to 34.8mph). Wave height will be up to 6.9ft 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)10°C (50°F)10°C (49°F)10°C (50°F)10°C (49°F)10°C (49°F)
Perceived temperature9°C (48°F)7°C (45°F)6°C (43°F)6°C (43°F)6°C (42°F)6°C (43°F)6°C (42°F)6°C (42°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%67%67%59%68%61%58%57%
Barometric pressure1014 hPa1016 hPa1016 hPa1017 hPa1017 hPa1017 hPa1019 hPa1021 hPa
Cloud cover100%80%100%100%100%100%86%69%
Heat index12°C (54°F)11°C (51°F)10°C (50°F)10°C (50°F)10°C (49°F)10°C (50°F)10°C (49°F)10°C (49°F)
Dew point10°C (49°F)5°C (41°F)4°C (40°F)3°C (37°F)4°C (39°F)3°C (37°F)2°C (35°F)2°C (35°F)
Wind
Speed44km/h (28mph)41km/h (26mph)38km/h (24mph)37km/h (23mph)37km/h (23mph)39km/h (24mph)37km/h (23mph)39km/h (24mph)
Gusts56km/h (35mph)54km/h (34mph)50km/h (31mph)46km/h (28mph)47km/h (29mph)50km/h (31mph)52km/h (32mph)50km/h (31mph)
Direction 300°
WNW
316°
NW
316°
NW
314°
NW
306°
NW
308°
NW
311°
NW
316°
NW
Wind chill9°C (48°F)7°C (45°F)6°C (43°F)6°C (43°F)6°C (42°F)6°C (43°F)6°C (42°F)6°C (42°F)
Waves
Height1.5m (4.9ft)2.1m (6.8ft)2.0m (6.6ft)2.0m (6.6ft)2.0m (6.6ft)2.1m (6.9ft)2.1m (6.9ft)2.0m (6.7ft)
Direction 290°
WNW
305°
NW
308°
NW
307°
NW
306°
NW
305°
NW
297°
WNW
294°
WNW
Period7.6 sec.5.7 sec.5.7 sec.5.7 sec.5.7 sec.5.7 sec.5.7 sec.5.7 sec.
Significant height2.2m (7.2ft)1.7m (5.6ft)1.5m (4.9ft)1.6m (5.2ft)1.7m (5.6ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 07:17 and will set at 17:16 on the beach(es) of Sasebo. The outside temperature will be a high of 50°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 21.8mph km/h (with gusts up to 28mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (49°F)9°C (49°F)10°C (50°F)10°C (50°F)10°C (49°F)9°C (49°F)7°C (44°F)9°C (47°F)
Perceived temperature5°C (42°F)6°C (42°F)6°C (43°F)7°C (44°F)7°C (45°F)7°C (45°F)5°C (41°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity58%60%58%59%54%55%62%64%
Barometric pressure1022 hPa1023 hPa1023 hPa1025 hPa1025 hPa1024 hPa1025 hPa1025 hPa
Cloud cover96%100%100%71%6%6%3%4%
Heat index9°C (49°F)9°C (49°F)10°C (50°F)10°C (50°F)10°C (49°F)9°C (49°F)7°C (44°F)9°C (47°F)
Dew point2°C (35°F)2°C (35°F)2°C (35°F)2°C (36°F)1°C (33°F)1°C (33°F)0°C (32°F)2°C (36°F)
Wind
Speed35km/h (22mph)30km/h (18mph)29km/h (18mph)25km/h (15mph)16km/h (10mph)13km/h (8mph)9km/h (6mph)4km/h (2mph)
Gusts45km/h (28mph)38km/h (24mph)39km/h (24mph)32km/h (20mph)23km/h (14mph)20km/h (13mph)19km/h (12mph)6km/h (4mph)
Direction 317°
NW
318°
NW
317°
NW
327°
NNW
342°
NNW
330°
NNW
344°
NNW
326°
NNW
Wind chill5°C (42°F)6°C (42°F)6°C (43°F)7°C (44°F)7°C (45°F)7°C (45°F)5°C (41°F)9°C (48°F)
Waves
Height1.8m (6.0ft)1.5m (5.0ft)1.5m (5.0ft)1.5m (4.9ft)1.4m (4.5ft)1.2m (3.9ft)1.0m (3.3ft)0.9m (2.9ft)
Direction 292°
WNW
292°
WNW
305°
NW
306°
NW
307°
NW

N

N

N
Period5.7 sec.5.7 sec.11.5 sec.11.5 sec.10.3 sec.10.0 sec.9.8 sec.9.5 sec.
Significant height1.3m (4.3ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)0.7m (2.3ft)0.5m (1.6ft)0.4m (1.3ft)0.1m (0.3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 07:18 and will set at 17:16 on the beach(es) of Sasebo. The outside temperature will be a high of 58°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 8.1mph km/h (with gusts up to 10.6mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)9°C (48°F)10°C (49°F)12°C (53°F)14°C (56°F)14°C (57°F)13°C (55°F)13°C (55°F)
Perceived temperature9°C (48°F)9°C (47°F)9°C (48°F)11°C (51°F)12°C (54°F)13°C (55°F)13°C (55°F)13°C (56°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%67%67%61%57%59%66%67%
Barometric pressure1024 hPa1024 hPa1024 hPa1024 hPa1023 hPa1022 hPa1023 hPa1023 hPa
Cloud cover6%23%35%91%82%63%68%100%
Heat index9°C (48°F)9°C (48°F)10°C (49°F)12°C (53°F)14°C (56°F)14°C (57°F)13°C (55°F)13°C (55°F)
Dew point3°C (37°F)3°C (38°F)4°C (39°F)4°C (40°F)5°C (41°F)6°C (43°F)7°C (44°F)7°C (45°F)
Wind
Speed3km/h (2mph)6km/h (4mph)6km/h (4mph)8km/h (5mph)13km/h (8mph)11km/h (7mph)5km/h (3mph)4km/h (3mph)
Gusts5km/h (3mph)10km/h (6mph)10km/h (6mph)12km/h (7mph)17km/h (11mph)16km/h (10mph)8km/h (5mph)7km/h (4mph)
Direction 214°
SW
243°
WSW
236°
WSW
237°
WSW
221°
SW
252°
WSW
272°
W
197°
SSW
Wind chill9°C (48°F)9°C (47°F)9°C (48°F)11°C (51°F)12°C (54°F)13°C (55°F)13°C (55°F)13°C (56°F)
Waves
Height0.8m (2.6ft)0.7m (2.3ft)0.6m (2.1ft)0.6m (1.9ft)0.5m (1.8ft)0.6m (1.9ft)0.5m (1.7ft)0.5m (1.5ft)
Direction
N

N

N

N
10°
N
11°
N
13°
NNE
15°
NNE
Period9.1 sec.9.2 sec.9.3 sec.9.2 sec.9.1 sec.9.0 sec.8.9 sec.8.9 sec.
Significant height0.1m (0.3ft)0.2m (0.7ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.5m (1.6ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 07:18 and will set at 17:17 on the beach(es) of Sasebo. The outside temperature will be a high of 61°F t and a low of 56°F. Precipitation is in the forecast (0.2in 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 19.3mph km/h (with gusts up to 29.8mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)13°C (56°F)13°C (56°F)13°C (55°F)16°C (60°F)14°C (58°F)13°C (56°F)13°C (55°F)
Perceived temperature13°C (55°F)12°C (54°F)12°C (53°F)11°C (52°F)16°C (60°F)12°C (54°F)11°C (52°F)11°C (52°F)
Precipitation0in0in0in0.1in0in0in0in0in
Humidity71%74%75%90%74%83%78%78%
Barometric pressure1022 hPa1021 hPa1020 hPa1020 hPa1018 hPa1018 hPa1020 hPa1021 hPa
Cloud cover84%53%81%100%52%99%92%85%
Heat index13°C (55°F)13°C (56°F)13°C (56°F)13°C (55°F)16°C (60°F)14°C (58°F)13°C (56°F)13°C (55°F)
Dew point8°C (46°F)9°C (48°F)9°C (48°F)11°C (52°F)11°C (52°F)11°C (52°F)9°C (49°F)9°C (49°F)
Wind
Speed5km/h (3mph)11km/h (7mph)16km/h (10mph)16km/h (10mph)22km/h (14mph)31km/h (19mph)22km/h (14mph)19km/h (12mph)
Gusts8km/h (5mph)17km/h (11mph)25km/h (16mph)23km/h (15mph)32km/h (20mph)48km/h (30mph)33km/h (21mph)28km/h (17mph)
Direction 158°
SSE
145°
SE
146°
SE
168°
SSE
268°
W
341°
NNW
343°
NNW

N
Wind chill13°C (55°F)12°C (54°F)12°C (53°F)11°C (52°F)16°C (60°F)12°C (54°F)11°C (52°F)11°C (52°F)
Waves
Height0.4m (1.4ft)0.4m (1.3ft)0.4m (1.2ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.7ft)0.7m (2.2ft)1.9m (6.2ft)
Direction 16°
NNE
17°
NNE
17°
NNE
17°
NNE
159°
SSE
193°
SSW
234°
SW
353°
N
Period9.0 sec.3.9 sec.9.3 sec.9.2 sec.9.1 sec.9.1 sec.9.2 sec.5.0 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.4m (1.3ft)2.2m (7.2ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 07:19 and will set at 17:17 on the beach(es) of Sasebo. The outside temperature will be a high of 56°F t and a low of 45°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 19.3mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)12°C (54°F)11°C (52°F)12°C (53°F)11°C (52°F)10°C (51°F)8°C (46°F)11°C (51°F)
Perceived temperature11°C (52°F)11°C (51°F)9°C (49°F)11°C (51°F)10°C (49°F)9°C (48°F)6°C (43°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%70%70%64%54%51%57%58%
Barometric pressure1022 hPa1023 hPa1024 hPa1026 hPa1025 hPa1024 hPa1025 hPa1025 hPa
Cloud cover82%51%80%7%0%0%0%0%
Heat index13°C (55°F)12°C (54°F)11°C (52°F)12°C (53°F)11°C (52°F)10°C (51°F)8°C (46°F)11°C (51°F)
Dew point8°C (47°F)7°C (44°F)6°C (43°F)5°C (42°F)2°C (36°F)1°C (33°F)-0°C (32°F)3°C (37°F)
Wind
Speed22km/h (14mph)16km/h (10mph)15km/h (10mph)11km/h (7mph)11km/h (7mph)10km/h (6mph)8km/h (5mph)5km/h (3mph)
Gusts31km/h (19mph)25km/h (15mph)25km/h (16mph)15km/h (9mph)20km/h (12mph)21km/h (13mph)17km/h (10mph)9km/h (6mph)
Direction 21°
NNE
23°
NNE
22°
NNE
27°
NNE
356°
N
342°
NNW

N
43°
NE
Wind chill11°C (52°F)11°C (51°F)9°C (49°F)11°C (51°F)10°C (49°F)9°C (48°F)6°C (43°F)11°C (51°F)
Waves
Height1.3m (4.3ft)1.2m (3.8ft)1.2m (4.0ft)1.2m (3.9ft)1.3m (4.2ft)1.2m (3.9ft)1.1m (3.8ft)1.0m (3.4ft)
Direction 357°
N

N

N

N

N

N

N
11°
N
Period5.9 sec.6.2 sec.6.2 sec.8.7 sec.5.8 sec.5.6 sec.5.4 sec.7.9 sec.
Significant height0.9m (3ft)1.0m (3.3ft)1.2m (3.9ft)0.7m (2.3ft)1.1m (3.6ft)1.0m (3.3ft)1.1m (3.6ft)0.9m (3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 07:20 and will set at 17:18 on the beach(es) of Sasebo. The outside temperature will be a high of 61°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 16.8mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (51°F)10°C (51°F)11°C (51°F)12°C (54°F)15°C (58°F)16°C (60°F)14°C (58°F)14°C (57°F)
Perceived temperature10°C (50°F)9°C (49°F)9°C (48°F)11°C (52°F)14°C (58°F)16°C (60°F)13°C (56°F)13°C (55°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity63%66%68%68%65%60%67%68%
Barometric pressure1025 hPa1025 hPa1025 hPa1025 hPa1024 hPa1022 hPa1023 hPa1023 hPa
Cloud cover0%0%0%15%69%14%42%45%
Heat index10°C (51°F)10°C (51°F)11°C (51°F)12°C (54°F)15°C (58°F)16°C (60°F)14°C (58°F)14°C (57°F)
Dew point4°C (38°F)4°C (40°F)5°C (41°F)6°C (44°F)8°C (47°F)8°C (46°F)8°C (47°F)8°C (47°F)
Wind
Speed6km/h (4mph)8km/h (5mph)12km/h (7mph)9km/h (6mph)9km/h (6mph)15km/h (9mph)13km/h (8mph)15km/h (9mph)
Gusts10km/h (6mph)14km/h (9mph)21km/h (13mph)14km/h (9mph)12km/h (8mph)23km/h (14mph)24km/h (15mph)27km/h (17mph)
Direction 101°
E
149°
SSE
146°
SSE
119°
ESE
153°
SSE
164°
SSE
141°
SE
126°
SE
Wind chill10°C (50°F)9°C (49°F)9°C (48°F)11°C (52°F)14°C (58°F)16°C (60°F)13°C (56°F)13°C (55°F)
Waves
Height0.8m (2.6ft)0.6m (1.9ft)0.5m (1.5ft)0.4m (1.4ft)0.4m (1.2ft)0.4m (1.2ft)0.4m (1.2ft)0.3m (1.1ft)
Direction 12°
NNE
12°
NNE
14°
NNE
13°
NNE
13°
NNE
14°
NNE
14°
NNE
14°
NNE
Period4.8 sec.4.9 sec.7.0 sec.6.8 sec.6.7 sec.6.5 sec.4.3 sec.4.1 sec.
Significant height0.3m (1ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 07:20 and will set at 17:18 on the beach(es) of Sasebo. The outside temperature will be a high of 65°F t and a low of 58°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 17.4mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (57°F)14°C (57°F)15°C (58°F)16°C (60°F)17°C (62°F)18°C (64°F)16°C (61°F)16°C (60°F)
Perceived temperature12°C (54°F)13°C (55°F)14°C (57°F)16°C (60°F)17°C (62°F)18°C (64°F)16°C (61°F)16°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%68%66%65%63%63%74%70%
Barometric pressure1022 hPa1022 hPa1022 hPa1022 hPa1022 hPa1021 hPa1023 hPa1024 hPa
Cloud cover30%52%40%33%29%57%72%43%
Heat index14°C (57°F)14°C (57°F)15°C (58°F)16°C (60°F)17°C (62°F)18°C (64°F)16°C (61°F)16°C (60°F)
Dew point8°C (47°F)8°C (46°F)8°C (47°F)9°C (48°F)9°C (49°F)11°C (51°F)11°C (52°F)10°C (51°F)
Wind
Speed22km/h (14mph)15km/h (9mph)13km/h (8mph)11km/h (7mph)8km/h (5mph)10km/h (6mph)4km/h (2mph)6km/h (4mph)
Gusts24km/h (15mph)28km/h (17mph)22km/h (14mph)17km/h (11mph)12km/h (7mph)14km/h (9mph)7km/h (4mph)12km/h (7mph)
Direction 126°
SE
128°
SE
146°
SSE
153°
SSE
163°
SSE
186°
S
144°
SE
83°
E
Wind chill12°C (54°F)13°C (55°F)14°C (57°F)16°C (60°F)17°C (62°F)18°C (64°F)16°C (61°F)16°C (60°F)
Waves
Height0.3m (1.0ft)0.3m (0.9ft)0.4m (1.2ft)0.4m (1.3ft)0.4m (1.4ft)0.5m (1.8ft)0.5m (1.8ft)0.5m (1.5ft)
Direction 15°
NNE
20°
NNE
173°
S
172°
S
178°
S
188°
S
186°
S
187°
S
Period3.8 sec.3.8 sec.5.6 sec.5.8 sec.7.2 sec.7.2 sec.5.1 sec.5.2 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.6m (2ft)0.8m (2.6ft)0.7m (2.3ft)0.8m (2.6ft)0.4m (1.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units