Sea weather in Hitachi-Naka in Japan All the beach weather in Hitachi-Naka

All the essential weather information for enjoying the beach in Hitachi-Naka 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 Hitachi-Naka over the next 7 days?

Discover the best moment to go to the beach in Hitachi-Naka in Japan this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Hitachi-Naka. 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 202538°F to 45°Fdiscouraged
Sunday 14 December 202543°F to 49°Fdiscouraged
Monday 15 December 202538°F to 50°Fdiscouraged
Tuesday 16 December 202541°F to 50°Frecommended
Wednesday 17 December 202543°F to 50°Frecommended
Thursday 18 December 202540°F to 49°Frecommended
Friday 19 December 202541°F to 50°Frecommended

Sea Weather: Your daily and hourly sea weather in Hitachi-Naka

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 06:40 and will set at 16:23 on the beach(es) of Hitachi-Naka. The outside temperature will be a high of 45°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 14.3mph 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 temperature4°C (39°F)4°C (39°F)3°C (38°F)5°C (40°F)7°C (44°F)7°C (45°F)6°C (43°F)6°C (42°F)
Perceived temperature-0°C (31°F)1°C (33°F)1°C (34°F)3°C (38°F)7°C (44°F)5°C (42°F)4°C (40°F)4°C (40°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity47%47%49%46%35%38%62%80%
Barometric pressure1026 hPa1027 hPa1028 hPa1029 hPa1027 hPa1026 hPa1026 hPa1024 hPa
Cloud cover15%47%100%29%25%53%96%100%
Heat index4°C (39°F)4°C (39°F)3°C (38°F)5°C (40°F)7°C (44°F)7°C (45°F)6°C (43°F)6°C (42°F)
Dew point-6°C (21°F)-6°C (21°F)-6°C (21°F)-6°C (21°F)-8°C (18°F)-6°C (21°F)-1°C (31°F)3°C (37°F)
Wind
Speed23km/h (14mph)14km/h (9mph)9km/h (5mph)6km/h (4mph)2km/h (1mph)9km/h (6mph)8km/h (5mph)6km/h (4mph)
Gusts31km/h (19mph)19km/h (12mph)12km/h (8mph)8km/h (5mph)3km/h (2mph)13km/h (8mph)12km/h (7mph)8km/h (5mph)
Direction 337°
NNW
331°
NNW
333°
NNW
305°
NW
298°
WNW
154°
SSE
164°
SSE
27°
NNE
Wind chill-0°C (31°F)1°C (33°F)1°C (34°F)3°C (38°F)7°C (44°F)5°C (42°F)4°C (40°F)4°C (40°F)
Waves
Height1.3m (4.2ft)1.1m (3.7ft)1.1m (3.6ft)1.0m (3.4ft)1.0m (3.1ft)0.9m (2.9ft)0.8m (2.7ft)0.8m (2.6ft)
Direction 35°
NE
87°
E
86°
E
85°
E
85°
E
87°
E
88°
E
88°
E
Period7.7 sec.7.7 sec.7.4 sec.7.0 sec.6.9 sec.11.8 sec.11.9 sec.11.8 sec.
Significant height0.5m (1.6ft)1.5m (4.9ft)1.3m (4.3ft)1.2m (3.9ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)
Sea water temperature
Water temperature18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:41 and will set at 16:23 on the beach(es) of Hitachi-Naka. The outside temperature will be a high of 49°F t and a low of 43°F. Precipitation is in the forecast (0.1in 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 16.8mph km/h (with gusts up to 28mph). Wave height will be up to 6.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (43°F)6°C (43°F)8°C (46°F)7°C (45°F)8°C (47°F)9°C (47°F)8°C (47°F)9°C (48°F)
Perceived temperature3°C (37°F)2°C (35°F)6°C (43°F)6°C (43°F)7°C (44°F)7°C (44°F)7°C (45°F)6°C (42°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity87%92%86%94%93%88%84%67%
Barometric pressure1019 hPa1014 hPa1010 hPa1006 hPa1001 hPa999 hPa1000 hPa1001 hPa
Cloud cover100%80%88%92%100%82%100%0%
Heat index6°C (43°F)6°C (43°F)8°C (46°F)7°C (45°F)8°C (47°F)9°C (47°F)8°C (47°F)9°C (48°F)
Dew point4°C (39°F)5°C (41°F)5°C (42°F)6°C (43°F)7°C (45°F)7°C (44°F)6°C (42°F)3°C (38°F)
Wind
Speed16km/h (10mph)27km/h (17mph)9km/h (5mph)8km/h (5mph)10km/h (6mph)12km/h (7mph)8km/h (5mph)27km/h (17mph)
Gusts21km/h (13mph)36km/h (22mph)13km/h (8mph)11km/h (7mph)16km/h (10mph)17km/h (11mph)12km/h (8mph)45km/h (28mph)
Direction
N
312°
NW
320°
NW

N
321°
NW
296°
WNW
257°
WSW
262°
W
Wind chill3°C (37°F)2°C (35°F)6°C (43°F)6°C (43°F)7°C (44°F)7°C (44°F)7°C (45°F)6°C (42°F)
Waves
Height0.8m (2.5ft)0.9m (3.0ft)1.3m (4.4ft)1.4m (4.6ft)1.4m (4.6ft)1.8m (5.8ft)2.1m (6.9ft)2.1m (6.9ft)
Direction 88°
E
88°
E
112°
ESE
112°
ESE
125°
SE
125°
SE
129°
SE
129°
SE
Period11.8 sec.11.8 sec.5.6 sec.6.2 sec.6.8 sec.10.8 sec.10.6 sec.10.8 sec.
Significant height1.0m (3.3ft)1.1m (3.6ft)1.7m (5.6ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)1.7m (5.6ft)
Sea water temperature
Water temperature18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:41 and will set at 16:23 on the beach(es) of Hitachi-Naka. The outside temperature will be a high of 50°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 23mph km/h (with gusts up to 27.3mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)8°C (47°F)8°C (46°F)9°C (48°F)10°C (50°F)9°C (49°F)4°C (39°F)7°C (44°F)
Perceived temperature5°C (41°F)5°C (40°F)5°C (40°F)6°C (42°F)7°C (45°F)6°C (43°F)-1°C (31°F)4°C (39°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity47%56%54%45%34%38%48%50%
Barometric pressure1003 hPa1006 hPa1009 hPa1014 hPa1014 hPa1016 hPa1019 hPa1021 hPa
Cloud cover9%19%12%4%14%12%0%5%
Heat index9°C (48°F)8°C (47°F)8°C (46°F)9°C (48°F)10°C (50°F)9°C (49°F)4°C (39°F)7°C (44°F)
Dew point-2°C (29°F)-0°C (32°F)-1°C (31°F)-3°C (27°F)-5°C (23°F)-4°C (24°F)-6°C (21°F)-3°C (26°F)
Wind
Speed37km/h (23mph)25km/h (15mph)21km/h (13mph)21km/h (13mph)24km/h (15mph)26km/h (16mph)24km/h (15mph)13km/h (8mph)
Gusts44km/h (27mph)38km/h (24mph)31km/h (19mph)26km/h (16mph)32km/h (20mph)39km/h (24mph)29km/h (18mph)19km/h (12mph)
Direction 258°
WSW
266°
W
295°
WNW
290°
WNW
292°
WNW
306°
NW
330°
NNW
333°
NNW
Wind chill5°C (41°F)5°C (40°F)5°C (40°F)6°C (42°F)7°C (45°F)6°C (43°F)-1°C (31°F)4°C (39°F)
Waves
Height1.9m (6.3ft)1.7m (5.7ft)1.3m (4.4ft)1.1m (3.8ft)1.0m (3.3ft)1.0m (3.4ft)1.0m (3.4ft)1.0m (3.2ft)
Direction 131°
SE
129°
SE
127°
SE
99°
E
93°
E
97°
E
108°
ESE
77°
ENE
Period10.9 sec.10.8 sec.10.5 sec.11.2 sec.9.8 sec.9.3 sec.9.2 sec.8.7 sec.
Significant height2.0m (6.6ft)2.0m (6.6ft)1.0m (3.3ft)1.3m (4.3ft)1.2m (3.9ft)1.1m (3.6ft)1.1m (3.6ft)0.9m (3ft)
Sea water temperature
Water temperature18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:42 and will set at 16:24 on the beach(es) of Hitachi-Naka. 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 7.5mph km/h (with gusts up to 14.9mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (42°F)6°C (42°F)5°C (41°F)7°C (44°F)9°C (48°F)8°C (47°F)7°C (45°F)8°C (46°F)
Perceived temperature4°C (39°F)5°C (41°F)3°C (38°F)6°C (43°F)7°C (45°F)6°C (44°F)5°C (42°F)6°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity54%55%59%50%41%39%38%40%
Barometric pressure1021 hPa1021 hPa1021 hPa1021 hPa1018 hPa1017 hPa1018 hPa1018 hPa
Cloud cover14%45%31%0%6%0%3%6%
Heat index6°C (42°F)6°C (42°F)5°C (41°F)7°C (44°F)9°C (48°F)8°C (47°F)7°C (45°F)8°C (46°F)
Dew point-3°C (27°F)-3°C (27°F)-2°C (28°F)-3°C (27°F)-3°C (26°F)-5°C (23°F)-6°C (21°F)-5°C (24°F)
Wind
Speed8km/h (5mph)5km/h (3mph)8km/h (5mph)6km/h (4mph)10km/h (6mph)12km/h (7mph)10km/h (6mph)9km/h (6mph)
Gusts12km/h (8mph)8km/h (5mph)13km/h (8mph)8km/h (5mph)15km/h (10mph)24km/h (15mph)22km/h (14mph)16km/h (10mph)
Direction 335°
NNW
305°
NW
314°
NW
279°
W
255°
WSW
249°
WSW
256°
WSW
298°
WNW
Wind chill4°C (39°F)5°C (41°F)3°C (38°F)6°C (43°F)7°C (45°F)6°C (44°F)5°C (42°F)6°C (44°F)
Waves
Height1.0m (3.2ft)0.9m (3.0ft)0.8m (2.7ft)0.8m (2.5ft)0.7m (2.4ft)0.7m (2.4ft)0.8m (2.5ft)0.8m (2.5ft)
Direction 65°
ENE
67°
ENE
66°
ENE
66°
ENE
67°
ENE
68°
ENE
68°
ENE
69°
ENE
Period11.5 sec.7.7 sec.12.3 sec.12.4 sec.12.6 sec.12.8 sec.12.8 sec.12.7 sec.
Significant height1.3m (4.3ft)0.7m (2.3ft)0.8m (2.6ft)0.9m (3ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:43 and will set at 16:24 on the beach(es) of Hitachi-Naka. 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 10.6mph km/h (with gusts up to 16.8mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)7°C (45°F)6°C (44°F)8°C (46°F)9°C (48°F)9°C (49°F)9°C (48°F)8°C (47°F)
Perceived temperature6°C (43°F)5°C (40°F)3°C (38°F)5°C (41°F)7°C (45°F)8°C (47°F)8°C (46°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity42%63%70%61%56%54%57%59%
Barometric pressure1018 hPa1018 hPa1019 hPa1021 hPa1019 hPa1019 hPa1020 hPa1020 hPa
Cloud cover3%5%3%11%29%32%86%72%
Heat index8°C (46°F)7°C (45°F)6°C (44°F)8°C (46°F)9°C (48°F)9°C (49°F)9°C (48°F)8°C (47°F)
Dew point-5°C (24°F)1°C (33°F)1°C (34°F)1°C (33°F)1°C (33°F)1°C (33°F)1°C (34°F)1°C (34°F)
Wind
Speed7km/h (4mph)14km/h (9mph)17km/h (11mph)13km/h (8mph)11km/h (7mph)8km/h (5mph)8km/h (5mph)8km/h (5mph)
Gusts12km/h (7mph)22km/h (14mph)27km/h (17mph)16km/h (10mph)15km/h (9mph)11km/h (7mph)12km/h (7mph)12km/h (7mph)
Direction 355°
N
15°
NNE
16°
NNE
20°
NNE
25°
NNE
53°
NE
44°
NE
11°
NNE
Wind chill6°C (43°F)5°C (40°F)3°C (38°F)5°C (41°F)7°C (45°F)8°C (47°F)8°C (46°F)7°C (45°F)
Waves
Height0.7m (2.4ft)0.7m (2.2ft)0.7m (2.2ft)0.6m (2.1ft)0.9m (2.9ft)0.8m (2.8ft)0.9m (2.8ft)0.9m (3.0ft)
Direction 69°
ENE
70°
ENE
72°
ENE
73°
ENE
73°
ENE
75°
ENE
75°
ENE
73°
ENE
Period12.6 sec.12.3 sec.12.0 sec.11.8 sec.11.6 sec.11.3 sec.11.1 sec.10.8 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:43 and will set at 16:25 on the beach(es) of Hitachi-Naka. The outside temperature will be a high of 49°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 9.9mph km/h (with gusts up to 20.5mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)7°C (45°F)7°C (44°F)7°C (45°F)9°C (47°F)8°C (46°F)4°C (39°F)6°C (43°F)
Perceived temperature7°C (44°F)6°C (42°F)4°C (39°F)4°C (40°F)7°C (44°F)5°C (42°F)0°C (32°F)3°C (37°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity65%63%62%54%45%41%51%57%
Barometric pressure1020 hPa1020 hPa1022 hPa1024 hPa1023 hPa1024 hPa1026 hPa1028 hPa
Cloud cover100%82%43%12%7%0%0%0%
Heat index8°C (46°F)7°C (45°F)7°C (44°F)7°C (45°F)9°C (47°F)8°C (46°F)4°C (39°F)6°C (43°F)
Dew point2°C (35°F)1°C (33°F)-0°C (32°F)-1°C (29°F)-3°C (27°F)-5°C (23°F)-5°C (22°F)-2°C (29°F)
Wind
Speed6km/h (4mph)9km/h (6mph)14km/h (9mph)16km/h (10mph)10km/h (6mph)12km/h (7mph)16km/h (10mph)16km/h (10mph)
Gusts9km/h (6mph)13km/h (8mph)20km/h (12mph)20km/h (12mph)14km/h (9mph)24km/h (15mph)33km/h (21mph)23km/h (14mph)
Direction 15°
NNE

N

N
11°
NNE

N
34°
NNE
16°
NNE
14°
NNE
Wind chill7°C (44°F)6°C (42°F)4°C (39°F)4°C (40°F)7°C (44°F)5°C (42°F)0°C (32°F)3°C (37°F)
Waves
Height0.9m (2.9ft)0.8m (2.8ft)0.9m (2.8ft)0.9m (3.1ft)1.1m (3.5ft)1.0m (3.4ft)1.1m (3.5ft)1.1m (3.5ft)
Direction 74°
ENE
75°
ENE
74°
ENE
75°
ENE
73°
ENE
74°
ENE
75°
ENE
73°
ENE
Period4.5 sec.5.1 sec.5.3 sec.5.6 sec.11.8 sec.6.3 sec.15.3 sec.14.8 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 06:44 and will set at 16:25 on the beach(es) of Hitachi-Naka. 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 7.5mph km/h (with gusts up to 10.6mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (42°F)5°C (41°F)5°C (41°F)7°C (44°F)9°C (48°F)10°C (51°F)9°C (48°F)9°C (48°F)
Perceived temperature3°C (37°F)3°C (38°F)3°C (38°F)7°C (44°F)9°C (48°F)10°C (50°F)9°C (47°F)8°C (46°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity58%58%58%52%51%56%63%67%
Barometric pressure1029 hPa1030 hPa1031 hPa1032 hPa1030 hPa1030 hPa1031 hPa1031 hPa
Cloud cover0%0%0%0%28%19%10%10%
Heat index6°C (42°F)5°C (41°F)5°C (41°F)7°C (44°F)9°C (48°F)10°C (51°F)9°C (48°F)9°C (48°F)
Dew point-2°C (28°F)-2°C (28°F)-3°C (27°F)-2°C (28°F)-0°C (31°F)2°C (36°F)2°C (36°F)3°C (38°F)
Wind
Speed12km/h (7mph)9km/h (6mph)7km/h (4mph)3km/h (2mph)3km/h (2mph)6km/h (4mph)5km/h (3mph)8km/h (5mph)
Gusts17km/h (11mph)14km/h (9mph)12km/h (7mph)4km/h (3mph)3km/h (2mph)9km/h (5mph)10km/h (6mph)14km/h (9mph)
Direction
N
351°
N
346°
NNW
327°
NNW
110°
ESE
151°
SSE
280°
W
281°
WNW
Wind chill3°C (37°F)3°C (38°F)3°C (38°F)7°C (44°F)9°C (48°F)10°C (50°F)9°C (47°F)8°C (46°F)
Waves
Height1.0m (3.3ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (2.9ft)0.8m (2.8ft)0.8m (2.8ft)0.8m (2.7ft)0.8m (2.6ft)
Direction 74°
ENE
74°
ENE
73°
ENE
73°
ENE
74°
ENE
75°
ENE
74°
ENE
75°
ENE
Period14.5 sec.14.3 sec.14.0 sec.13.6 sec.13.4 sec.13.2 sec.12.7 sec.12.5 sec.
Significant height1.1m (3.6ft)0.9m (3ft)0.8m (2.6ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)18°C (64°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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