Sea weather in Nagasaki in Japan All the beach weather in Nagasaki

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

Discover the best moment to go to the beach in Nagasaki in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Nagasaki. 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 202538°F to 54°Fdiscouraged
Saturday 6 December 202543°F to 54°Frecommended
Sunday 7 December 202556°F to 65°Frecommended
Monday 8 December 202549°F to 59°Fdiscouraged
Tuesday 9 December 202545°F to 56°Frecommended
Wednesday 10 December 202549°F to 56°Frecommended
Thursday 11 December 202552°F to 58°Frecommended

Sea Weather: Your daily and hourly sea weather in Nagasaki

Sea weather on Friday 5 December 2025

On Friday 5 December 2025, the sun will rise at 07:08 and will set at 17:14 on the beach(es) of Nagasaki. The outside temperature will be a high of 54°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 19.9mph km/h (with gusts up to 26.7mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (51°F)10°C (50°F)12°C (53°F)10°C (50°F)10°C (49°F)8°C (46°F)3°C (38°F)6°C (43°F)
Perceived temperature8°C (46°F)8°C (46°F)9°C (47°F)6°C (44°F)7°C (44°F)4°C (40°F)-0°C (32°F)5°C (41°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity64%66%63%56%51%45%51%53%
Barometric pressure1025 hPa1024 hPa1023 hPa1026 hPa1025 hPa1024 hPa1024 hPa1025 hPa
Cloud cover88%71%100%40%30%2%0%0%
Heat index10°C (51°F)10°C (50°F)12°C (53°F)10°C (50°F)10°C (49°F)8°C (46°F)3°C (38°F)6°C (43°F)
Dew point4°C (39°F)4°C (39°F)5°C (41°F)2°C (35°F)-0°C (32°F)-3°C (26°F)-6°C (22°F)-3°C (28°F)
Wind
Speed20km/h (12mph)18km/h (11mph)32km/h (20mph)31km/h (19mph)26km/h (16mph)21km/h (13mph)14km/h (9mph)8km/h (5mph)
Gusts27km/h (17mph)25km/h (15mph)43km/h (26mph)39km/h (24mph)31km/h (19mph)35km/h (22mph)29km/h (18mph)12km/h (8mph)
Direction 320°
NW
299°
WNW
315°
NW
326°
NNW
330°
NNW
356°
N
20°
NNE
13°
NNE
Wind chill8°C (46°F)8°C (46°F)9°C (47°F)6°C (44°F)7°C (44°F)4°C (40°F)-0°C (32°F)5°C (41°F)
Waves
Height0.9m (2.9ft)0.9m (3.1ft)1.4m (4.5ft)1.5m (5.1ft)1.2m (4.0ft)1.0m (3.2ft)0.8m (2.6ft)0.6m (2.0ft)
Direction 302°
WNW
298°
WNW
297°
WNW
304°
WNW
301°
WNW
300°
WNW
298°
WNW
296°
WNW
Period9.0 sec.9.0 sec.9.0 sec.9.0 sec.9.0 sec.9.0 sec.6.8 sec.6.6 sec.
Significant height0.9m (3ft)0.7m (2.3ft)1.8m (5.9ft)1.7m (5.6ft)1.5m (4.9ft)1.5m (4.9ft)1.2m (3.9ft)0.9m (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 07:09 and will set at 17:14 on the beach(es) of Nagasaki. The outside temperature will be a high of 54°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 5.6mph km/h (with gusts up to 8.1mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (43°F)6°C (43°F)6°C (43°F)8°C (47°F)11°C (51°F)11°C (52°F)10°C (50°F)12°C (53°F)
Perceived temperature6°C (43°F)6°C (43°F)5°C (40°F)7°C (45°F)10°C (49°F)10°C (50°F)10°C (50°F)11°C (52°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity54%54%63%59%57%57%61%62%
Barometric pressure1025 hPa1024 hPa1024 hPa1025 hPa1024 hPa1024 hPa1024 hPa1024 hPa
Cloud cover0%0%0%16%12%15%19%30%
Heat index6°C (43°F)6°C (43°F)6°C (43°F)8°C (47°F)11°C (51°F)11°C (52°F)10°C (50°F)12°C (53°F)
Dew point-2°C (28°F)-2°C (28°F)-1°C (31°F)1°C (34°F)2°C (36°F)3°C (37°F)3°C (37°F)5°C (41°F)
Wind
Speed3km/h (2mph)3km/h (2mph)6km/h (4mph)6km/h (4mph)8km/h (5mph)9km/h (5mph)4km/h (3mph)8km/h (5mph)
Gusts4km/h (3mph)4km/h (3mph)11km/h (7mph)9km/h (5mph)10km/h (6mph)13km/h (8mph)8km/h (5mph)12km/h (8mph)
Direction 39°
NE
326°
NNW
35°
NE
95°
E
176°
S
235°
SW
212°
SSW
158°
SSE
Wind chill6°C (43°F)6°C (43°F)5°C (40°F)7°C (45°F)10°C (49°F)10°C (50°F)10°C (50°F)11°C (52°F)
Waves
Height0.5m (1.6ft)0.4m (1.3ft)0.3m (1.1ft)0.3m (0.9ft)0.2m (0.8ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.7ft)
Direction 299°
WNW
297°
WNW
298°
WNW
298°
WNW
296°
WNW
296°
WNW
299°
WNW
301°
WNW
Period6.3 sec.5.9 sec.5.6 sec.5.2 sec.5.0 sec.4.7 sec.4.5 sec.4.2 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)
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 07:10 and will set at 17:15 on the beach(es) of Nagasaki. The outside temperature will be a high of 65°F t and a low of 56°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 11.2mph km/h (with gusts up to 15.5mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)13°C (56°F)14°C (57°F)16°C (60°F)17°C (63°F)17°C (63°F)14°C (58°F)14°C (58°F)
Perceived temperature12°C (54°F)13°C (55°F)13°C (56°F)16°C (60°F)17°C (63°F)17°C (63°F)14°C (56°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity63%63%64%64%54%56%63%66%
Barometric pressure1024 hPa1023 hPa1023 hPa1023 hPa1022 hPa1022 hPa1023 hPa1023 hPa
Cloud cover94%92%84%54%41%47%10%0%
Heat index13°C (55°F)13°C (56°F)14°C (57°F)16°C (60°F)17°C (63°F)17°C (63°F)14°C (58°F)14°C (58°F)
Dew point6°C (42°F)6°C (44°F)7°C (45°F)9°C (48°F)8°C (47°F)8°C (47°F)7°C (45°F)8°C (46°F)
Wind
Speed6km/h (4mph)9km/h (6mph)11km/h (7mph)12km/h (7mph)15km/h (9mph)18km/h (11mph)11km/h (7mph)8km/h (5mph)
Gusts9km/h (6mph)14km/h (9mph)16km/h (10mph)16km/h (10mph)20km/h (12mph)25km/h (16mph)21km/h (13mph)13km/h (8mph)
Direction 188°
S
260°
W
222°
SW
227°
SW
273°
W
285°
WNW
302°
WNW
321°
NW
Wind chill12°C (54°F)13°C (55°F)13°C (56°F)16°C (60°F)17°C (63°F)17°C (63°F)14°C (56°F)14°C (57°F)
Waves
Height0.2m (0.8ft)0.3m (0.9ft)0.3m (1.0ft)0.5m (1.5ft)0.7m (2.2ft)0.7m (2.2ft)0.6m (2.0ft)0.5m (1.7ft)
Direction 301°
WNW
296°
WNW
293°
WNW
295°
WNW
301°
WNW
300°
WNW
297°
WNW
294°
WNW
Period4.1 sec.4.0 sec.4.0 sec.4.0 sec.4.0 sec.4.0 sec.5.7 sec.5.7 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)1.3m (4.3ft)1.4m (4.6ft)1.4m (4.6ft)0.9m (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 Monday 8 December 2025

On Monday 8 December 2025, the sun will rise at 07:10 and will set at 17:15 on the beach(es) of Nagasaki. The outside temperature will be a high of 59°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 16.2mph km/h (with gusts up to 19.3mph). Wave height will be up to 3ft 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)15°C (58°F)15°C (58°F)12°C (53°F)11°C (52°F)11°C (51°F)
Perceived temperature14°C (57°F)14°C (56°F)14°C (57°F)13°C (56°F)13°C (55°F)9°C (48°F)9°C (48°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity68%67%62%62%50%56%65%68%
Barometric pressure1023 hPa1023 hPa1023 hPa1024 hPa1024 hPa1024 hPa1024 hPa1025 hPa
Cloud cover5%64%64%21%22%2%15%0%
Heat index14°C (57°F)14°C (57°F)15°C (58°F)15°C (58°F)15°C (58°F)12°C (53°F)11°C (52°F)11°C (51°F)
Dew point8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)4°C (40°F)3°C (38°F)5°C (41°F)5°C (41°F)
Wind
Speed5km/h (3mph)8km/h (5mph)14km/h (9mph)19km/h (12mph)22km/h (14mph)26km/h (16mph)18km/h (11mph)15km/h (9mph)
Gusts9km/h (5mph)13km/h (8mph)22km/h (14mph)26km/h (16mph)29km/h (18mph)30km/h (18mph)31km/h (20mph)24km/h (15mph)
Direction 326°
NW
325°
NW
328°
NNW
332°
NNW
321°
NW
319°
NW
328°
NNW

N
Wind chill14°C (57°F)14°C (56°F)14°C (57°F)13°C (56°F)13°C (55°F)9°C (48°F)9°C (48°F)9°C (48°F)
Waves
Height0.5m (1.5ft)0.4m (1.4ft)0.4m (1.3ft)0.5m (1.8ft)0.7m (2.4ft)0.9m (3.0ft)0.9m (3.0ft)0.8m (2.7ft)
Direction 293°
WNW
293°
WNW
292°
WNW
293°
WNW
294°
WNW
296°
WNW
295°
WNW
294°
WNW
Period5.6 sec.5.6 sec.5.5 sec.5.5 sec.5.5 sec.5.5 sec.5.5 sec.6.1 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.9m (3ft)1.5m (4.9ft)1.6m (5.2ft)1.4m (4.6ft)1.3m (4.3ft)
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 Tuesday 9 December 2025

On Tuesday 9 December 2025, the sun will rise at 07:11 and will set at 17:15 on the beach(es) of Nagasaki. 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 9.9mph km/h (with gusts up to 21.1mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (50°F)9°C (49°F)9°C (47°F)11°C (51°F)11°C (52°F)13°C (55°F)9°C (48°F)10°C (50°F)
Perceived temperature8°C (46°F)7°C (45°F)6°C (44°F)9°C (48°F)9°C (49°F)12°C (53°F)6°C (43°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%65%66%52%42%39%56%62%
Barometric pressure1025 hPa1025 hPa1026 hPa1027 hPa1026 hPa1025 hPa1026 hPa1027 hPa
Cloud cover3%2%2%4%1%6%2%0%
Heat index10°C (50°F)9°C (49°F)9°C (47°F)11°C (51°F)11°C (52°F)13°C (55°F)9°C (48°F)10°C (50°F)
Dew point4°C (38°F)3°C (38°F)3°C (37°F)1°C (34°F)-2°C (29°F)-0°C (31°F)1°C (33°F)3°C (38°F)
Wind
Speed14km/h (9mph)14km/h (9mph)13km/h (8mph)13km/h (8mph)13km/h (8mph)15km/h (9mph)16km/h (10mph)13km/h (8mph)
Gusts23km/h (14mph)23km/h (14mph)22km/h (13mph)17km/h (10mph)23km/h (14mph)24km/h (15mph)34km/h (21mph)23km/h (14mph)
Direction
N
22°
NNE
12°
NNE
17°
NNE
13°
NNE

N
14°
NNE
26°
NNE
Wind chill8°C (46°F)7°C (45°F)6°C (44°F)9°C (48°F)9°C (49°F)12°C (53°F)6°C (43°F)8°C (47°F)
Waves
Height0.8m (2.6ft)0.7m (2.4ft)0.7m (2.3ft)0.6m (2.1ft)0.6m (2.0ft)0.6m (2.0ft)0.6m (1.9ft)0.5m (1.5ft)
Direction 292°
WNW
293°
WNW
294°
WNW
299°
WNW
299°
WNW
299°
WNW
306°
NW
303°
WNW
Period6.6 sec.6.7 sec.6.7 sec.6.5 sec.6.2 sec.5.9 sec.5.6 sec.5.7 sec.
Significant height1.2m (3.9ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)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 Wednesday 10 December 2025

On Wednesday 10 December 2025, the sun will rise at 07:12 and will set at 17:15 on the beach(es) of Nagasaki. The outside temperature will be a high of 56°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 5mph km/h (with gusts up to 8.1mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (49°F)9°C (48°F)9°C (48°F)11°C (51°F)12°C (53°F)13°C (55°F)12°C (53°F)12°C (53°F)
Perceived temperature9°C (47°F)8°C (46°F)8°C (46°F)10°C (50°F)12°C (53°F)13°C (55°F)12°C (54°F)12°C (54°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity61%63%64%57%39%43%47%50%
Barometric pressure1026 hPa1026 hPa1026 hPa1027 hPa1026 hPa1024 hPa1025 hPa1025 hPa
Cloud cover2%5%5%0%0%6%32%68%
Heat index10°C (49°F)9°C (48°F)9°C (48°F)11°C (51°F)12°C (53°F)13°C (55°F)12°C (53°F)12°C (53°F)
Dew point2°C (36°F)2°C (36°F)2°C (36°F)2°C (36°F)-2°C (29°F)0°C (33°F)1°C (34°F)1°C (35°F)
Wind
Speed8km/h (5mph)7km/h (4mph)7km/h (4mph)6km/h (4mph)2km/h (1mph)2km/h (1mph)4km/h (2mph)3km/h (2mph)
Gusts13km/h (8mph)13km/h (8mph)13km/h (8mph)9km/h (6mph)3km/h (2mph)3km/h (2mph)7km/h (4mph)6km/h (4mph)
Direction 55°
NE
54°
NE
47°
NE
67°
ENE
248°
WSW
232°
SW
351°
N
89°
E
Wind chill9°C (47°F)8°C (46°F)8°C (46°F)10°C (50°F)12°C (53°F)13°C (55°F)12°C (54°F)12°C (54°F)
Waves
Height0.3m (1.1ft)0.3m (0.9ft)0.2m (0.7ft)0.2m (0.5ft)0.1m (0.4ft)0.3m (0.9ft)0.4m (1.3ft)0.4m (1.3ft)
Direction 300°
WNW
299°
WNW
301°
WNW
301°
WNW
300°
WNW
298°
WNW
297°
WNW
298°
WNW
Period5.5 sec.5.4 sec.5.1 sec.4.8 sec.4.6 sec.4.7 sec.5.0 sec.4.9 sec.
Significant height0.5m (1.6ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)
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 Thursday 11 December 2025

On Thursday 11 December 2025, the sun will rise at 07:13 and will set at 17:15 on the beach(es) of Nagasaki. 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 7.5mph km/h (with gusts up to 13.7mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (51°F)11°C (53°F)12°C (53°F)13°C (55°F)12°C (53°F)14°C (56°F)12°C (53°F)12°C (53°F)
Perceived temperature10°C (50°F)11°C (52°F)11°C (51°F)12°C (54°F)11°C (51°F)14°C (56°F)11°C (51°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity53%49%49%45%55%49%54%65%
Barometric pressure1024 hPa1024 hPa1023 hPa1024 hPa1023 hPa1022 hPa1023 hPa1024 hPa
Cloud cover22%47%47%62%79%23%7%94%
Heat index11°C (51°F)11°C (53°F)12°C (53°F)13°C (55°F)12°C (53°F)14°C (56°F)12°C (53°F)12°C (53°F)
Dew point2°C (35°F)1°C (34°F)2°C (35°F)1°C (34°F)3°C (38°F)3°C (37°F)3°C (37°F)6°C (42°F)
Wind
Speed7km/h (4mph)6km/h (4mph)12km/h (7mph)6km/h (4mph)10km/h (6mph)6km/h (4mph)10km/h (6mph)10km/h (6mph)
Gusts13km/h (8mph)11km/h (7mph)19km/h (12mph)9km/h (6mph)15km/h (9mph)9km/h (6mph)22km/h (14mph)18km/h (11mph)
Direction 74°
ENE
62°
ENE
46°
NE
13°
NNE
88°
E
28°
NNE
13°
NNE
22°
NNE
Wind chill10°C (50°F)11°C (52°F)11°C (51°F)12°C (54°F)11°C (51°F)14°C (56°F)11°C (51°F)11°C (51°F)
Waves
Height0.3m (0.8ft)0.2m (0.8ft)0.2m (0.5ft)0.2m (0.7ft)0.2m (0.8ft)0.2m (0.7ft)0.2m (0.6ft)0.1m (0.5ft)
Direction 296°
WNW
295°
WNW
31°
NNE
46°
NE
190°
S
188°
S
186°
S
186°
S
Period4.9 sec.4.9 sec.4.9 sec.4.7 sec.4.7 sec.4.5 sec.4.0 sec.4.1 sec.
Significant height0.2m (0.7ft)1.3m (4.3ft)1.4m (4.6ft)0.5m (1.6ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)
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

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