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
Sunday 18 January 202645°F to 54°Frecommended
Monday 19 January 202647°F to 56°Frecommended
Tuesday 20 January 202643°F to 52°Fdiscouraged
Wednesday 21 January 202636°F to 41°Fnot recommended
Thursday 22 January 202636°F to 41°Fnot recommended
Friday 23 January 202640°F to 45°Fdiscouraged
Saturday 24 January 202641°F to 45°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Nagasaki

Sea weather on Sunday 18 January 2026

On Sunday 18 January 2026, the sun will rise at 07:23 and will set at 17:40 on the beach(es) of Nagasaki. The outside temperature will be a high of 54°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 7.5mph km/h (with gusts up to 12.4mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (50°F)9°C (49°F)9°C (48°F)10°C (50°F)12°C (53°F)11°C (53°F)9°C (47°F)10°C (50°F)
Perceived temperature8°C (47°F)8°C (46°F)7°C (45°F)9°C (48°F)12°C (53°F)11°C (52°F)7°C (45°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity70%71%73%67%48%49%63%75%
Barometric pressure1020 hPa1020 hPa1019 hPa1020 hPa1020 hPa1018 hPa1019 hPa1020 hPa
Cloud cover0%0%0%0%0%0%0%0%
Heat index10°C (50°F)9°C (49°F)9°C (48°F)10°C (50°F)12°C (53°F)11°C (53°F)9°C (47°F)10°C (50°F)
Dew point5°C (41°F)4°C (40°F)4°C (39°F)4°C (39°F)1°C (34°F)1°C (34°F)2°C (36°F)6°C (42°F)
Wind
Speed12km/h (7mph)11km/h (7mph)10km/h (6mph)9km/h (6mph)4km/h (2mph)6km/h (4mph)8km/h (5mph)12km/h (7mph)
Gusts20km/h (13mph)20km/h (12mph)18km/h (11mph)13km/h (8mph)7km/h (4mph)14km/h (8mph)17km/h (10mph)20km/h (13mph)
Direction 38°
NE
41°
NE
58°
ENE
30°
NNE
17°
NNE
306°
NW
21°
NNE
28°
NNE
Wind chill8°C (47°F)8°C (46°F)7°C (45°F)9°C (48°F)12°C (53°F)11°C (52°F)7°C (45°F)8°C (47°F)
Waves
Height0.3m (0.9ft)0.3m (0.9ft)0.2m (0.8ft)0.2m (0.8ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.8ft)
Direction 296°
WNW
297°
WNW
298°
WNW
294°
WNW
289°
WNW
296°
WNW
305°
NW
314°
NW
Period4.4 sec.4.4 sec.4.5 sec.4.7 sec.5.7 sec.5.7 sec.5.6 sec.5.4 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.5m (1.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Monday 19 January 2026

On Monday 19 January 2026, the sun will rise at 07:22 and will set at 17:41 on the beach(es) of Nagasaki. The outside temperature will be a high of 56°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 9.3mph km/h (with gusts up to 14.3mph). 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 (47°F)10°C (50°F)12°C (53°F)13°C (56°F)11°C (52°F)11°C (53°F)
Perceived temperature8°C (46°F)8°C (46°F)7°C (45°F)9°C (48°F)11°C (51°F)12°C (53°F)10°C (49°F)10°C (50°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%78%79%72%58%60%71%79%
Barometric pressure1020 hPa1020 hPa1020 hPa1020 hPa1020 hPa1018 hPa1018 hPa1019 hPa
Cloud cover0%3%0%0%3%11%22%100%
Heat index10°C (49°F)9°C (48°F)9°C (47°F)10°C (50°F)12°C (53°F)13°C (56°F)11°C (52°F)11°C (53°F)
Dew point6°C (43°F)5°C (42°F)5°C (41°F)5°C (41°F)4°C (39°F)6°C (42°F)6°C (43°F)8°C (46°F)
Wind
Speed10km/h (6mph)9km/h (6mph)9km/h (6mph)8km/h (5mph)9km/h (6mph)15km/h (10mph)12km/h (7mph)14km/h (9mph)
Gusts17km/h (11mph)16km/h (10mph)16km/h (10mph)11km/h (7mph)14km/h (9mph)23km/h (14mph)20km/h (13mph)21km/h (13mph)
Direction 35°
NE
32°
NNE
27°
NNE
53°
NE
319°
NW
321°
NW
329°
NNW
314°
NW
Wind chill8°C (46°F)8°C (46°F)7°C (45°F)9°C (48°F)11°C (51°F)12°C (53°F)10°C (49°F)10°C (50°F)
Waves
Height0.2m (0.7ft)0.2m (0.5ft)0.1m (0.4ft)0.4m (1.3ft)0.3m (0.9ft)0.2m (0.6ft)0.3m (1.1ft)0.4m (1.4ft)
Direction 316°
NW
324°
NW
190°
S
190°
S
189°
S
189°
S
318°
NW
304°
NW
Period3.5 sec.3.5 sec.3.4 sec.3.3 sec.3.3 sec.11.1 sec.10.9 sec.10.6 sec.
Significant height0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Tuesday 20 January 2026

On Tuesday 20 January 2026, the sun will rise at 07:22 and will set at 17:42 on the beach(es) of Nagasaki. The outside temperature will be a high of 52°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 16.8mph km/h (with gusts up to 24.2mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (52°F)10°C (50°F)10°C (50°F)10°C (51°F)10°C (49°F)8°C (46°F)6°C (42°F)6°C (42°F)
Perceived temperature9°C (48°F)7°C (45°F)8°C (46°F)8°C (46°F)7°C (44°F)4°C (40°F)1°C (34°F)1°C (34°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%76%72%72%69%63%59%55%
Barometric pressure1019 hPa1019 hPa1018 hPa1018 hPa1018 hPa1017 hPa1019 hPa1019 hPa
Cloud cover100%99%100%81%100%59%50%5%
Heat index11°C (52°F)10°C (50°F)10°C (50°F)10°C (51°F)10°C (49°F)8°C (46°F)6°C (42°F)6°C (42°F)
Dew point7°C (45°F)6°C (43°F)5°C (42°F)6°C (42°F)4°C (40°F)1°C (34°F)-2°C (29°F)-3°C (27°F)
Wind
Speed19km/h (12mph)23km/h (14mph)19km/h (12mph)19km/h (12mph)25km/h (16mph)25km/h (15mph)27km/h (17mph)26km/h (16mph)
Gusts26km/h (16mph)30km/h (19mph)26km/h (16mph)25km/h (15mph)31km/h (20mph)33km/h (20mph)39km/h (24mph)35km/h (22mph)
Direction 308°
NW
305°
NW
323°
NW
322°
NW
335°
NNW
344°
NNW
342°
NNW
342°
NNW
Wind chill9°C (48°F)7°C (45°F)8°C (46°F)8°C (46°F)7°C (44°F)4°C (40°F)1°C (34°F)1°C (34°F)
Waves
Height0.8m (2.5ft)1.0m (3.2ft)1.1m (3.6ft)1.0m (3.4ft)1.0m (3.4ft)1.1m (3.6ft)1.2m (3.8ft)1.1m (3.6ft)
Direction 298°
WNW
294°
WNW
295°
WNW
292°
WNW
292°
WNW
293°
WNW
292°
WNW
292°
WNW
Period10.0 sec.9.9 sec.9.8 sec.9.6 sec.9.1 sec.9.0 sec.9.0 sec.8.9 sec.
Significant height0.8m (2.6ft)0.9m (3ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)1.0m (3.3ft)1.1m (3.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Wednesday 21 January 2026

On Wednesday 21 January 2026, the sun will rise at 07:22 and will set at 17:43 on the beach(es) of Nagasaki. The outside temperature will be a high of 41°F t and a low of 36°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 26.7mph km/h (with gusts up to 30.5mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (41°F)4°C (40°F)3°C (38°F)3°C (37°F)4°C (38°F)3°C (38°F)2°C (36°F)3°C (37°F)
Perceived temperature0°C (33°F)-0°C (31°F)-2°C (28°F)-3°C (27°F)-3°C (27°F)-3°C (26°F)-4°C (24°F)-4°C (25°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity58%63%61%67%63%59%66%67%
Barometric pressure1020 hPa1019 hPa1020 hPa1022 hPa1021 hPa1020 hPa1021 hPa1021 hPa
Cloud cover0%80%91%84%100%90%96%89%
Heat index5°C (41°F)4°C (40°F)3°C (38°F)3°C (37°F)4°C (38°F)3°C (38°F)2°C (36°F)3°C (37°F)
Dew point-2°C (28°F)-2°C (28°F)-3°C (26°F)-3°C (27°F)-3°C (27°F)-4°C (24°F)-3°C (26°F)-3°C (27°F)
Wind
Speed28km/h (17mph)27km/h (17mph)30km/h (18mph)27km/h (17mph)39km/h (24mph)43km/h (27mph)36km/h (23mph)38km/h (23mph)
Gusts37km/h (23mph)36km/h (22mph)37km/h (23mph)31km/h (19mph)45km/h (28mph)49km/h (31mph)46km/h (29mph)46km/h (29mph)
Direction 334°
NNW
338°
NNW
343°
NNW
342°
NNW
320°
NW
327°
NNW
331°
NNW
326°
NNW
Wind chill0°C (33°F)-0°C (31°F)-2°C (28°F)-3°C (27°F)-3°C (27°F)-3°C (26°F)-4°C (24°F)-4°C (25°F)
Waves
Height1.1m (3.5ft)1.3m (4.2ft)1.3m (4.3ft)1.3m (4.3ft)1.4m (4.6ft)1.5m (4.8ft)1.9m (6.2ft)1.9m (6.2ft)
Direction 289°
WNW
290°
WNW
291°
WNW
293°
WNW
293°
WNW
295°
WNW
297°
WNW
301°
WNW
Period8.9 sec.7.6 sec.7.7 sec.7.8 sec.7.7 sec.7.1 sec.7.1 sec.7.2 sec.
Significant height0.8m (2.6ft)1.2m (3.9ft)1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)1.2m (3.9ft)1.4m (4.6ft)1.4m (4.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Thursday 22 January 2026

On Thursday 22 January 2026, the sun will rise at 07:21 and will set at 17:44 on the beach(es) of Nagasaki. The outside temperature will be a high of 41°F t and a low of 36°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 26.7mph km/h (with gusts up to 31.1mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature2°C (36°F)2°C (36°F)2°C (35°F)2°C (36°F)3°C (38°F)3°C (38°F)4°C (39°F)5°C (40°F)
Perceived temperature-4°C (24°F)-5°C (23°F)-5°C (23°F)-5°C (24°F)-3°C (26°F)-3°C (27°F)-2°C (28°F)-1°C (30°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity66%66%67%61%59%63%60%59%
Barometric pressure1022 hPa1021 hPa1021 hPa1023 hPa1023 hPa1021 hPa1022 hPa1023 hPa
Cloud cover83%87%91%85%81%98%68%67%
Heat index2°C (36°F)2°C (36°F)2°C (35°F)2°C (36°F)3°C (38°F)3°C (38°F)4°C (39°F)5°C (40°F)
Dew point-3°C (26°F)-3°C (26°F)-4°C (26°F)-5°C (24°F)-4°C (25°F)-3°C (27°F)-3°C (26°F)-3°C (27°F)
Wind
Speed43km/h (27mph)43km/h (27mph)39km/h (24mph)41km/h (25mph)40km/h (25mph)40km/h (25mph)37km/h (23mph)39km/h (24mph)
Gusts50km/h (31mph)49km/h (31mph)45km/h (28mph)47km/h (29mph)46km/h (29mph)46km/h (29mph)50km/h (31mph)49km/h (30mph)
Direction 320°
NW
324°
NW
326°
NNW
327°
NNW
321°
NW
320°
NW
324°
NW
320°
NW
Wind chill-4°C (24°F)-5°C (23°F)-5°C (23°F)-5°C (24°F)-3°C (26°F)-3°C (27°F)-2°C (28°F)-1°C (30°F)
Waves
Height1.8m (5.9ft)1.7m (5.5ft)1.5m (4.9ft)1.3m (4.3ft)1.2m (3.9ft)1.3m (4.3ft)1.3m (4.4ft)1.1m (3.6ft)
Direction 301°
WNW
296°
WNW
300°
WNW
300°
WNW
298°
WNW
300°
WNW
301°
WNW
299°
WNW
Period7.5 sec.7.6 sec.7.5 sec.7.2 sec.7.1 sec.6.8 sec.6.5 sec.6.4 sec.
Significant height1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)1.1m (3.6ft)1.0m (3.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Friday 23 January 2026

On Friday 23 January 2026, the sun will rise at 07:21 and will set at 17:45 on the beach(es) of Nagasaki. The outside temperature will be a high of 45°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 23.6mph km/h (with gusts up to 29.8mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature4°C (40°F)5°C (40°F)5°C (40°F)5°C (41°F)6°C (43°F)7°C (44°F)6°C (42°F)6°C (43°F)
Perceived temperature-1°C (30°F)-1°C (30°F)-1°C (30°F)0°C (32°F)1°C (35°F)2°C (36°F)2°C (35°F)3°C (37°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity58%60%60%57%53%51%57%57%
Barometric pressure1023 hPa1023 hPa1024 hPa1025 hPa1025 hPa1024 hPa1025 hPa1025 hPa
Cloud cover69%77%84%92%100%63%76%74%
Heat index4°C (40°F)5°C (40°F)5°C (40°F)5°C (41°F)6°C (43°F)7°C (44°F)6°C (42°F)6°C (43°F)
Dew point-3°C (26°F)-3°C (27°F)-3°C (27°F)-3°C (27°F)-3°C (27°F)-3°C (27°F)-2°C (28°F)-2°C (29°F)
Wind
Speed38km/h (24mph)37km/h (23mph)35km/h (21mph)31km/h (19mph)32km/h (20mph)30km/h (19mph)24km/h (15mph)21km/h (13mph)
Gusts48km/h (30mph)46km/h (29mph)43km/h (27mph)38km/h (23mph)37km/h (23mph)36km/h (23mph)36km/h (22mph)31km/h (19mph)
Direction 321°
NW
323°
NW
326°
NNW
325°
NW
320°
NW
320°
NW
320°
NW
310°
NW
Wind chill-1°C (30°F)-1°C (30°F)-1°C (30°F)0°C (32°F)1°C (35°F)2°C (36°F)2°C (35°F)3°C (37°F)
Waves
Height1.1m (3.5ft)1.2m (3.8ft)1.2m (3.9ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.5ft)1.0m (3.3ft)0.9m (2.9ft)
Direction 301°
WNW
298°
WNW
299°
WNW
299°
WNW
300°
WNW
301°
WNW
301°
WNW
302°
WNW
Period6.1 sec.6.2 sec.6.3 sec.6.3 sec.6.4 sec.6.4 sec.6.3 sec.6.0 sec.
Significant height0.9m (3ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Saturday 24 January 2026

On Saturday 24 January 2026, the sun will rise at 07:20 and will set at 17:46 on the beach(es) of Nagasaki. The outside temperature will be a high of 45°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 16.8mph km/h (with gusts up to 22.4mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (44°F)7°C (44°F)6°C (43°F)7°C (44°F)7°C (45°F)7°C (45°F)5°C (41°F)5°C (42°F)
Perceived temperature3°C (38°F)2°C (36°F)2°C (35°F)3°C (37°F)3°C (38°F)3°C (38°F)1°C (35°F)3°C (37°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity56%58%59%56%52%52%56%60%
Barometric pressure1025 hPa1026 hPa1026 hPa1028 hPa1028 hPa1028 hPa1028 hPa1029 hPa
Cloud cover77%67%48%53%36%21%9%4%
Heat index7°C (44°F)7°C (44°F)6°C (43°F)7°C (44°F)7°C (45°F)7°C (45°F)5°C (41°F)5°C (42°F)
Dew point-1°C (30°F)-1°C (30°F)-1°C (30°F)-2°C (29°F)-2°C (28°F)-2°C (28°F)-3°C (27°F)-2°C (29°F)
Wind
Speed22km/h (14mph)27km/h (17mph)26km/h (16mph)24km/h (15mph)25km/h (16mph)25km/h (15mph)18km/h (11mph)13km/h (8mph)
Gusts31km/h (19mph)36km/h (23mph)36km/h (23mph)31km/h (19mph)30km/h (19mph)33km/h (20mph)32km/h (20mph)20km/h (12mph)
Direction 324°
NW
323°
NW
326°
NNW
325°
NW
317°
NW
322°
NW
337°
NNW
353°
N
Wind chill3°C (38°F)2°C (36°F)2°C (35°F)3°C (37°F)3°C (38°F)3°C (38°F)1°C (35°F)3°C (37°F)
Waves
Height0.8m (2.5ft)0.8m (2.8ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2.0ft)0.8m (2.6ft)
Direction 301°
WNW
304°
WNW
303°
WNW
305°
NW
307°
NW
306°
NW
308°
NW
304°
NW
Period8.8 sec.8.8 sec.5.7 sec.5.7 sec.5.6 sec.5.5 sec.5.3 sec.4.8 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.5m (1.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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