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
Saturday 13 December 202547°F to 58°Frecommended
Sunday 14 December 202550°F to 58°Fdiscouraged
Monday 15 December 202547°F to 54°Fdiscouraged
Tuesday 16 December 202549°F to 56°Frecommended
Wednesday 17 December 202552°F to 59°Fdiscouraged
Thursday 18 December 202549°F to 58°Frecommended
Friday 19 December 202550°F to 58°Frecommended

Sea Weather: Your daily and hourly sea weather in Nagasaki

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 07:14 and will set at 17:16 on the beach(es) of Nagasaki. 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 7.5mph km/h (with gusts up to 11.8mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (47°F)8°C (46°F)8°C (46°F)9°C (49°F)10°C (50°F)10°C (49°F)10°C (49°F)12°C (53°F)
Perceived temperature7°C (44°F)6°C (42°F)6°C (43°F)8°C (47°F)9°C (48°F)8°C (47°F)8°C (46°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity64%68%70%65%69%77%87%89%
Barometric pressure1026 hPa1025 hPa1024 hPa1023 hPa1021 hPa1018 hPa1016 hPa1016 hPa
Cloud cover0%2%29%100%100%91%100%93%
Heat index9°C (47°F)8°C (46°F)8°C (46°F)9°C (49°F)10°C (50°F)10°C (49°F)10°C (49°F)12°C (53°F)
Dew point2°C (36°F)2°C (36°F)3°C (37°F)3°C (38°F)5°C (40°F)6°C (42°F)8°C (46°F)10°C (50°F)
Wind
Speed12km/h (7mph)12km/h (7mph)10km/h (6mph)8km/h (5mph)9km/h (6mph)9km/h (6mph)12km/h (7mph)10km/h (6mph)
Gusts18km/h (11mph)19km/h (12mph)17km/h (10mph)11km/h (7mph)13km/h (8mph)14km/h (8mph)18km/h (11mph)15km/h (9mph)
Direction 54°
NE
49°
NE
48°
NE
51°
NE
349°
NNW
41°
NE
103°
ESE
160°
SSE
Wind chill7°C (44°F)6°C (42°F)6°C (43°F)8°C (47°F)9°C (48°F)8°C (47°F)8°C (46°F)11°C (51°F)
Waves
Height0.3m (1.0ft)0.2m (0.8ft)0.2m (0.7ft)0.2m (0.6ft)0.1m (0.5ft)0.1m (0.4ft)0.2m (0.6ft)0.2m (0.7ft)
Direction 339°
NNW
339°
NNW
342°
NNW
343°
NNW
344°
NNW
344°
NNW

N
174°
S
Period9.8 sec.9.8 sec.4.0 sec.3.8 sec.3.3 sec.3.3 sec.3.3 sec.5.0 sec.
Significant height0.3m (1ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.3m (1ft)0.2m (0.7ft)0.4m (1.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 07:15 and will set at 17:16 on the beach(es) of Nagasaki. 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 23mph km/h (with gusts up to 29.2mph). Wave height will be up to 6.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (57°F)12°C (53°F)11°C (51°F)10°C (51°F)10°C (50°F)11°C (51°F)10°C (51°F)10°C (51°F)
Perceived temperature12°C (53°F)8°C (47°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (45°F)7°C (44°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%68%67%63%62%57%54%53%
Barometric pressure1014 hPa1015 hPa1016 hPa1018 hPa1018 hPa1018 hPa1020 hPa1021 hPa
Cloud cover100%100%100%100%98%79%100%100%
Heat index14°C (57°F)12°C (53°F)11°C (51°F)10°C (51°F)10°C (50°F)11°C (51°F)10°C (51°F)10°C (51°F)
Dew point11°C (52°F)6°C (43°F)5°C (40°F)4°C (39°F)3°C (38°F)3°C (37°F)1°C (35°F)1°C (34°F)
Wind
Speed35km/h (21mph)34km/h (21mph)37km/h (23mph)34km/h (21mph)33km/h (20mph)35km/h (22mph)32km/h (20mph)31km/h (19mph)
Gusts46km/h (28mph)46km/h (28mph)47km/h (29mph)43km/h (27mph)40km/h (25mph)46km/h (29mph)45km/h (28mph)42km/h (26mph)
Direction 296°
WNW
310°
NW
324°
NW
316°
NW
310°
NW
313°
NW
315°
NW
319°
NW
Wind chill12°C (53°F)8°C (47°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (45°F)7°C (44°F)7°C (44°F)
Waves
Height0.3m (0.9ft)1.5m (5.1ft)2.0m (6.5ft)2.0m (6.6ft)2.0m (6.5ft)1.7m (5.7ft)1.8m (5.8ft)1.8m (5.8ft)
Direction 171°
S
292°
WNW
293°
WNW
292°
WNW
294°
WNW
294°
WNW
292°
WNW
291°
WNW
Period5.2 sec.5.4 sec.7.4 sec.7.4 sec.8.7 sec.9.0 sec.9.0 sec.9.0 sec.
Significant height0.3m (1ft)1.7m (5.6ft)1.6m (5.2ft)1.7m (5.6ft)1.7m (5.6ft)1.5m (4.9ft)1.5m (4.9ft)1.3m (4.3ft)
Sea water temperature
Water temperature19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 07:15 and will set at 17:16 on the beach(es) of Nagasaki. 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 17.4mph km/h (with gusts up to 22.4mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (49°F)10°C (49°F)11°C (51°F)11°C (51°F)11°C (52°F)11°C (52°F)8°C (47°F)9°C (49°F)
Perceived temperature6°C (43°F)6°C (43°F)8°C (46°F)8°C (46°F)9°C (48°F)9°C (48°F)6°C (43°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity59%64%55%57%53%52%61%63%
Barometric pressure1022 hPa1023 hPa1023 hPa1025 hPa1024 hPa1024 hPa1025 hPa1025 hPa
Cloud cover89%94%44%38%58%19%4%8%
Heat index10°C (49°F)10°C (49°F)11°C (51°F)11°C (51°F)11°C (52°F)11°C (52°F)8°C (47°F)9°C (49°F)
Dew point2°C (36°F)3°C (38°F)2°C (35°F)2°C (36°F)2°C (36°F)2°C (35°F)1°C (34°F)3°C (37°F)
Wind
Speed28km/h (17mph)24km/h (15mph)26km/h (16mph)22km/h (14mph)21km/h (13mph)18km/h (11mph)12km/h (8mph)6km/h (4mph)
Gusts36km/h (23mph)32km/h (20mph)35km/h (22mph)28km/h (18mph)25km/h (16mph)25km/h (15mph)25km/h (15mph)10km/h (6mph)
Direction 323°
NW
326°
NW
329°
NNW
339°
NNW
331°
NNW
332°
NNW
341°
NNW
346°
NNW
Wind chill6°C (43°F)6°C (43°F)8°C (46°F)8°C (46°F)9°C (48°F)9°C (48°F)6°C (43°F)9°C (48°F)
Waves
Height1.7m (5.6ft)1.5m (5.1ft)1.3m (4.1ft)1.0m (3.1ft)0.8m (2.7ft)0.7m (2.3ft)0.6m (2.0ft)0.5m (1.6ft)
Direction 294°
WNW
294°
WNW
291°
WNW
293°
WNW
290°
WNW
291°
WNW
287°
WNW
288°
WNW
Period9.0 sec.9.0 sec.9.0 sec.7.1 sec.6.8 sec.9.7 sec.6.2 sec.5.8 sec.
Significant height1.2m (3.9ft)1.1m (3.6ft)0.9m (3ft)1.5m (4.9ft)1.3m (4.3ft)0.5m (1.6ft)0.6m (2ft)0.4m (1.3ft)
Sea water temperature
Water temperature19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 07:16 and will set at 17:17 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 4.4mph km/h (with gusts up to 6.2mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)9°C (47°F)9°C (48°F)11°C (51°F)13°C (55°F)13°C (56°F)12°C (54°F)12°C (54°F)
Perceived temperature9°C (48°F)9°C (48°F)9°C (48°F)10°C (51°F)13°C (55°F)13°C (55°F)12°C (53°F)12°C (54°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%68%69%64%57%57%64%66%
Barometric pressure1025 hPa1025 hPa1025 hPa1025 hPa1024 hPa1023 hPa1023 hPa1024 hPa
Cloud cover0%4%18%24%19%32%81%8%
Heat index9°C (48°F)9°C (47°F)9°C (48°F)11°C (51°F)13°C (55°F)13°C (56°F)12°C (54°F)12°C (54°F)
Dew point3°C (37°F)3°C (37°F)3°C (38°F)4°C (39°F)4°C (40°F)5°C (40°F)5°C (42°F)6°C (43°F)
Wind
Speed4km/h (2mph)3km/h (2mph)3km/h (2mph)5km/h (3mph)5km/h (3mph)7km/h (4mph)6km/h (4mph)5km/h (3mph)
Gusts7km/h (4mph)6km/h (3mph)5km/h (3mph)6km/h (4mph)6km/h (4mph)10km/h (6mph)10km/h (6mph)8km/h (5mph)
Direction
N
88°
E
39°
NE
88°
E
201°
SSW
217°
SW
168°
SSE
141°
SE
Wind chill9°C (48°F)9°C (48°F)9°C (48°F)10°C (51°F)13°C (55°F)13°C (55°F)12°C (53°F)12°C (54°F)
Waves
Height0.4m (1.4ft)0.4m (1.2ft)0.3m (1.0ft)0.3m (0.9ft)0.2m (0.8ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.7ft)
Direction 282°
WNW
273°
W
266°
W
263°
W
259°
WSW
258°
WSW
260°
W
262°
W
Period5.5 sec.5.2 sec.5.6 sec.5.5 sec.5.2 sec.5.1 sec.4.9 sec.3.8 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)
Sea water temperature
Water temperature19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 07:17 and will set at 17:17 on the beach(es) of Nagasaki. 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 16.2mph km/h (with gusts up to 24.9mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)13°C (56°F)12°C (54°F)13°C (56°F)12°C (54°F)13°C (56°F)12°C (53°F)11°C (52°F)
Perceived temperature12°C (54°F)12°C (54°F)11°C (52°F)12°C (53°F)11°C (52°F)14°C (57°F)9°C (49°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity66%68%75%76%90%84%89%84%
Barometric pressure1023 hPa1022 hPa1020 hPa1020 hPa1018 hPa1016 hPa1018 hPa1020 hPa
Cloud cover54%100%74%86%100%72%75%15%
Heat index13°C (55°F)13°C (56°F)12°C (54°F)13°C (56°F)12°C (54°F)13°C (56°F)12°C (53°F)11°C (52°F)
Dew point6°C (44°F)7°C (45°F)8°C (46°F)9°C (49°F)11°C (51°F)11°C (52°F)10°C (50°F)9°C (48°F)
Wind
Speed7km/h (4mph)10km/h (6mph)14km/h (9mph)17km/h (11mph)12km/h (8mph)4km/h (3mph)26km/h (16mph)21km/h (13mph)
Gusts11km/h (7mph)16km/h (10mph)23km/h (14mph)24km/h (15mph)18km/h (11mph)7km/h (4mph)40km/h (25mph)30km/h (19mph)
Direction 151°
SSE
143°
SE
127°
SE
132°
SE
135°
SE
174°
S
15°
NNE
13°
NNE
Wind chill12°C (54°F)12°C (54°F)11°C (52°F)12°C (53°F)11°C (52°F)14°C (57°F)9°C (49°F)9°C (48°F)
Waves
Height0.2m (0.8ft)0.3m (1.0ft)0.4m (1.2ft)0.6m (2.1ft)0.9m (3.1ft)0.9m (3.1ft)0.9m (2.9ft)0.8m (2.7ft)
Direction 275°
W
166°
SSE
195°
SSW
241°
WSW
253°
WSW
257°
WSW
260°
W
270°
W
Period2.8 sec.4.2 sec.3.2 sec.3.2 sec.3.2 sec.3.2 sec.5.4 sec.6.0 sec.
Significant height0.4m (1.3ft)0.5m (1.6ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)1.4m (4.6ft)1.1m (3.6ft)
Sea water temperature
Water temperature19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 07:17 and will set at 17:17 on the beach(es) of Nagasaki. 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 9.3mph 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 temperature11°C (52°F)11°C (51°F)10°C (51°F)11°C (52°F)13°C (56°F)14°C (57°F)9°C (48°F)12°C (53°F)
Perceived temperature9°C (48°F)9°C (48°F)8°C (47°F)10°C (50°F)13°C (55°F)14°C (56°F)8°C (46°F)10°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%82%74%67%63%57%66%70%
Barometric pressure1021 hPa1022 hPa1023 hPa1025 hPa1024 hPa1023 hPa1024 hPa1025 hPa
Cloud cover30%89%0%0%58%21%0%0%
Heat index11°C (52°F)11°C (51°F)10°C (51°F)11°C (52°F)13°C (56°F)14°C (57°F)9°C (48°F)12°C (53°F)
Dew point8°C (47°F)8°C (46°F)6°C (43°F)6°C (42°F)6°C (43°F)6°C (42°F)3°C (37°F)6°C (43°F)
Wind
Speed14km/h (9mph)13km/h (8mph)15km/h (9mph)12km/h (7mph)6km/h (4mph)9km/h (5mph)8km/h (5mph)10km/h (6mph)
Gusts22km/h (14mph)20km/h (13mph)25km/h (15mph)16km/h (10mph)8km/h (5mph)13km/h (8mph)17km/h (11mph)17km/h (10mph)
Direction
N
26°
NNE
20°
NNE
14°
NNE
348°
NNW
58°
ENE
71°
ENE
72°
ENE
Wind chill9°C (48°F)9°C (48°F)8°C (47°F)10°C (50°F)13°C (55°F)14°C (56°F)8°C (46°F)10°C (51°F)
Waves
Height0.7m (2.4ft)0.6m (2.1ft)0.7m (2.2ft)0.5m (1.8ft)0.4m (1.4ft)0.4m (1.2ft)0.3m (1.0ft)0.3m (1.0ft)
Direction 282°
WNW
279°
W
293°
WNW
298°
WNW
294°
WNW
296°
WNW
301°
WNW
308°
NW
Period5.8 sec.6.0 sec.6.2 sec.6.3 sec.6.2 sec.5.9 sec.5.6 sec.5.5 sec.
Significant height0.8m (2.6ft)0.6m (2ft)0.8m (2.6ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 07:18 and will set at 17:18 on the beach(es) of Nagasaki. 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 7.5mph km/h (with gusts up to 13.1mph). 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)10°C (51°F)10°C (50°F)12°C (53°F)14°C (56°F)14°C (56°F)13°C (55°F)14°C (56°F)
Perceived temperature9°C (49°F)9°C (48°F)8°C (47°F)10°C (51°F)13°C (55°F)13°C (55°F)12°C (54°F)13°C (55°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%81%79%72%53%49%55%58%
Barometric pressure1025 hPa1026 hPa1025 hPa1026 hPa1025 hPa1024 hPa1024 hPa1025 hPa
Cloud cover0%8%0%0%0%0%6%29%
Heat index11°C (51°F)10°C (51°F)10°C (50°F)12°C (53°F)14°C (56°F)14°C (56°F)13°C (55°F)14°C (56°F)
Dew point6°C (44°F)7°C (45°F)7°C (44°F)7°C (44°F)4°C (39°F)3°C (38°F)4°C (40°F)6°C (42°F)
Wind
Speed10km/h (6mph)11km/h (7mph)12km/h (7mph)12km/h (8mph)9km/h (6mph)9km/h (5mph)8km/h (5mph)10km/h (6mph)
Gusts17km/h (11mph)19km/h (12mph)21km/h (13mph)18km/h (11mph)17km/h (11mph)18km/h (11mph)17km/h (10mph)18km/h (11mph)
Direction 76°
ENE
83°
E
73°
ENE
88°
E
95°
E
107°
ESE
79°
ENE
94°
E
Wind chill9°C (49°F)9°C (48°F)8°C (47°F)10°C (51°F)13°C (55°F)13°C (55°F)12°C (54°F)13°C (55°F)
Waves
Height0.2m (0.8ft)0.2m (0.6ft)0.1m (0.4ft)0.1m (0.4ft)0.2m (0.8ft)0.2m (0.8ft)0.3m (1.1ft)0.1m (0.5ft)
Direction 299°
WNW
293°
WNW
289°
WNW
286°
WNW
283°
WNW
281°
WNW
279°
W
275°
W
Period5.3 sec.5.3 sec.5.2 sec.5.2 sec.4.8 sec.5.4 sec.5.4 sec.5.4 sec.
Significant height0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.2m (0.7ft)0.4m (1.3ft)
Sea water temperature
Water temperature19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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