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
Sunday 14 December 202543°F to 50°Fdiscouraged
Monday 15 December 202540°F to 52°Fdiscouraged
Tuesday 16 December 202540°F to 49°Frecommended
Wednesday 17 December 202545°F to 52°Frecommended
Thursday 18 December 202543°F to 49°Frecommended
Friday 19 December 202545°F to 54°Frecommended
Saturday 20 December 202550°F to 61°Frecommended

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

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 50°F t and a low of 43°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 15.5mph km/h (with gusts up to 26.1mph). Wave height will be up to 7.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (43°F)7°C (44°F)8°C (47°F)7°C (45°F)7°C (45°F)9°C (48°F)9°C (49°F)10°C (50°F)
Perceived temperature4°C (40°F)3°C (38°F)5°C (41°F)5°C (41°F)5°C (41°F)8°C (47°F)9°C (48°F)7°C (44°F)
Precipitation0in0in0in0.1in0in0in0in0in
Humidity81%91%91%92%95%80%78%65%
Barometric pressure1020 hPa1014 hPa1008 hPa1004 hPa996 hPa997 hPa999 hPa1000 hPa
Cloud cover100%100%100%80%79%40%71%0%
Heat index6°C (43°F)7°C (44°F)8°C (47°F)7°C (45°F)7°C (45°F)9°C (48°F)9°C (49°F)10°C (50°F)
Dew point3°C (38°F)5°C (41°F)7°C (44°F)6°C (43°F)7°C (44°F)6°C (43°F)6°C (42°F)4°C (39°F)
Wind
Speed10km/h (6mph)19km/h (12mph)21km/h (13mph)14km/h (9mph)13km/h (8mph)7km/h (4mph)6km/h (4mph)25km/h (15mph)
Gusts13km/h (8mph)26km/h (16mph)32km/h (20mph)21km/h (13mph)21km/h (13mph)10km/h (6mph)11km/h (7mph)42km/h (26mph)
Direction
N

N
304°
NW

N
352°
N
280°
W
326°
NNW
263°
W
Wind chill4°C (40°F)3°C (38°F)5°C (41°F)5°C (41°F)5°C (41°F)8°C (47°F)9°C (48°F)7°C (44°F)
Waves
Height0.8m (2.7ft)1.0m (3.4ft)1.6m (5.1ft)1.6m (5.2ft)1.6m (5.3ft)2.2m (7.3ft)2.3m (7.6ft)2.1m (7.0ft)
Direction 90°
E
89°
E
130°
SE
124°
ESE
124°
SE
127°
SE
128°
SE
132°
SE
Period11.8 sec.4.5 sec.6.4 sec.7.0 sec.7.6 sec.10.6 sec.10.8 sec.10.9 sec.
Significant height0.9m (3ft)1.1m (3.6ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)0.4m (1.3ft)0.1m (0.3ft)1.2m (3.9ft)
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 52°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 22.4mph km/h (with gusts up to 32.9mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (49°F)8°C (47°F)9°C (47°F)9°C (49°F)11°C (51°F)9°C (49°F)4°C (40°F)7°C (45°F)
Perceived temperature6°C (42°F)5°C (41°F)5°C (41°F)6°C (44°F)8°C (46°F)6°C (43°F)0°C (32°F)4°C (40°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity45%55%58%53%42%40%50%53%
Barometric pressure1001 hPa1004 hPa1008 hPa1013 hPa1014 hPa1016 hPa1019 hPa1020 hPa
Cloud cover2%23%6%17%30%8%0%2%
Heat index10°C (49°F)8°C (47°F)9°C (47°F)9°C (49°F)11°C (51°F)9°C (49°F)4°C (40°F)7°C (45°F)
Dew point-2°C (29°F)-0°C (32°F)1°C (33°F)0°C (33°F)-2°C (29°F)-4°C (26°F)-5°C (23°F)-2°C (29°F)
Wind
Speed36km/h (22mph)24km/h (15mph)27km/h (17mph)22km/h (14mph)25km/h (16mph)25km/h (15mph)21km/h (13mph)15km/h (10mph)
Gusts53km/h (33mph)37km/h (23mph)40km/h (25mph)28km/h (18mph)33km/h (21mph)38km/h (24mph)26km/h (16mph)23km/h (14mph)
Direction 256°
WSW
275°
W
289°
WNW
299°
WNW
304°
WNW
314°
NW
333°
NNW
332°
NNW
Wind chill6°C (42°F)5°C (41°F)5°C (41°F)6°C (44°F)8°C (46°F)6°C (43°F)0°C (32°F)4°C (40°F)
Waves
Height1.9m (6.1ft)1.5m (5.0ft)1.2m (3.9ft)1.0m (3.4ft)1.0m (3.2ft)1.0m (3.3ft)1.0m (3.2ft)0.9m (3.1ft)
Direction 133°
SE
130°
SE
126°
SE
122°
ESE
106°
ESE
100°
E
95°
E
89°
E
Period10.6 sec.10.3 sec.11.2 sec.9.8 sec.9.8 sec.8.9 sec.11.9 sec.9.2 sec.
Significant height1.6m (5.2ft)0.9m (3ft)1.4m (4.6ft)0.8m (2.6ft)1.0m (3.3ft)1.1m (3.6ft)1.0m (3.3ft)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 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 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 6.2mph km/h (with gusts up to 10.6mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (43°F)5°C (42°F)6°C (43°F)7°C (44°F)8°C (47°F)9°C (49°F)5°C (40°F)7°C (45°F)
Perceived temperature4°C (39°F)4°C (39°F)5°C (40°F)6°C (42°F)7°C (44°F)8°C (47°F)3°C (37°F)6°C (42°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity58%61%60%55%47%46%54%53%
Barometric pressure1021 hPa1021 hPa1022 hPa1022 hPa1019 hPa1018 hPa1019 hPa1019 hPa
Cloud cover10%46%50%81%61%78%0%6%
Heat index6°C (43°F)5°C (42°F)6°C (43°F)7°C (44°F)8°C (47°F)9°C (49°F)5°C (40°F)7°C (45°F)
Dew point-2°C (29°F)-1°C (29°F)-1°C (30°F)-2°C (29°F)-2°C (28°F)-2°C (29°F)-4°C (25°F)-1°C (29°F)
Wind
Speed10km/h (6mph)7km/h (4mph)6km/h (4mph)7km/h (4mph)8km/h (5mph)8km/h (5mph)8km/h (5mph)10km/h (6mph)
Gusts16km/h (10mph)11km/h (7mph)9km/h (6mph)9km/h (6mph)11km/h (7mph)12km/h (7mph)17km/h (10mph)17km/h (10mph)
Direction 335°
NNW
320°
NW
307°
NW
304°
WNW
269°
W
218°
SW
232°
SW
271°
W
Wind chill4°C (39°F)4°C (39°F)5°C (40°F)6°C (42°F)7°C (44°F)8°C (47°F)3°C (37°F)6°C (42°F)
Waves
Height0.9m (2.8ft)0.9m (2.8ft)0.8m (2.7ft)0.8m (2.5ft)0.7m (2.4ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.4ft)
Direction 79°
E
72°
ENE
66°
ENE
68°
ENE
68°
ENE
68°
ENE
69°
ENE
70°
ENE
Period7.4 sec.7.5 sec.11.9 sec.12.0 sec.12.3 sec.12.6 sec.12.8 sec.12.9 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)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 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 52°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 9.3mph km/h (with gusts up to 14.3mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (45°F)7°C (44°F)7°C (44°F)9°C (48°F)11°C (51°F)11°C (51°F)10°C (49°F)9°C (49°F)
Perceived temperature5°C (41°F)5°C (41°F)5°C (40°F)7°C (44°F)9°C (48°F)9°C (48°F)8°C (46°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity48%47%59%64%64%64%68%71%
Barometric pressure1018 hPa1018 hPa1019 hPa1020 hPa1018 hPa1019 hPa1020 hPa1021 hPa
Cloud cover3%4%11%19%68%91%60%91%
Heat index7°C (45°F)7°C (44°F)7°C (44°F)9°C (48°F)11°C (51°F)11°C (51°F)10°C (49°F)9°C (49°F)
Dew point-3°C (26°F)-4°C (25°F)-1°C (31°F)2°C (36°F)4°C (39°F)4°C (39°F)4°C (40°F)4°C (40°F)
Wind
Speed9km/h (6mph)8km/h (5mph)11km/h (7mph)12km/h (8mph)13km/h (8mph)11km/h (7mph)14km/h (9mph)15km/h (10mph)
Gusts16km/h (10mph)15km/h (9mph)19km/h (12mph)17km/h (11mph)16km/h (10mph)16km/h (10mph)22km/h (14mph)23km/h (14mph)
Direction 281°
W
314°
NW

N
17°
NNE
47°
NE
65°
ENE
48°
NE
19°
NNE
Wind chill5°C (41°F)5°C (41°F)5°C (40°F)7°C (44°F)9°C (48°F)9°C (48°F)8°C (46°F)7°C (45°F)
Waves
Height0.7m (2.4ft)0.7m (2.3ft)0.8m (2.5ft)0.9m (3.0ft)0.8m (2.8ft)0.8m (2.6ft)0.7m (2.5ft)0.8m (2.6ft)
Direction 71°
ENE
72°
ENE
74°
ENE
74°
ENE
75°
ENE
75°
ENE
76°
ENE
76°
ENE
Period12.6 sec.12.4 sec.11.9 sec.11.7 sec.11.3 sec.11.0 sec.10.9 sec.10.7 sec.
Significant height0.7m (2.3ft)0.8m (2.6ft)1.1m (3.6ft)1.1m (3.6ft)0.8m (2.6ft)0.7m (2.3ft)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 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 9.9mph km/h (with gusts up to 18.6mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)7°C (45°F)7°C (44°F)8°C (46°F)9°C (48°F)7°C (45°F)8°C (46°F)8°C (46°F)
Perceived temperature5°C (42°F)5°C (41°F)4°C (39°F)5°C (41°F)7°C (44°F)4°C (40°F)5°C (41°F)6°C (43°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%67%64%59%51%50%59%63%
Barometric pressure1021 hPa1022 hPa1024 hPa1026 hPa1025 hPa1025 hPa1027 hPa1028 hPa
Cloud cover100%70%20%4%12%2%10%32%
Heat index8°C (47°F)7°C (45°F)7°C (44°F)8°C (46°F)9°C (48°F)7°C (45°F)8°C (46°F)8°C (46°F)
Dew point3°C (38°F)2°C (35°F)1°C (33°F)-0°C (32°F)-1°C (31°F)-3°C (27°F)-0°C (32°F)1°C (34°F)
Wind
Speed16km/h (10mph)13km/h (8mph)14km/h (9mph)15km/h (9mph)14km/h (9mph)14km/h (9mph)15km/h (9mph)9km/h (6mph)
Gusts21km/h (13mph)18km/h (11mph)21km/h (13mph)18km/h (11mph)19km/h (12mph)30km/h (19mph)26km/h (16mph)15km/h (9mph)
Direction
N

N
12°
NNE
17°
NNE
37°
NE
65°
ENE
63°
ENE
61°
ENE
Wind chill5°C (42°F)5°C (41°F)4°C (39°F)5°C (41°F)7°C (44°F)4°C (40°F)5°C (41°F)6°C (43°F)
Waves
Height0.8m (2.6ft)0.8m (2.6ft)0.8m (2.7ft)1.1m (3.6ft)1.1m (3.7ft)1.1m (3.5ft)1.1m (3.6ft)1.1m (3.5ft)
Direction 75°
ENE
76°
ENE
75°
ENE
76°
ENE
74°
ENE
75°
ENE
76°
ENE
74°
ENE
Period10.5 sec.4.1 sec.12.4 sec.12.0 sec.11.8 sec.11.7 sec.15.2 sec.5.7 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.9m (3ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)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 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 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 5.6mph km/h (with gusts up to 8.7mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)7°C (45°F)7°C (45°F)9°C (49°F)11°C (52°F)12°C (54°F)12°C (53°F)12°C (53°F)
Perceived temperature7°C (45°F)7°C (45°F)7°C (45°F)9°C (49°F)11°C (52°F)12°C (53°F)11°C (52°F)11°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity64%66%68%64%59%61%65%68%
Barometric pressure1028 hPa1028 hPa1028 hPa1030 hPa1028 hPa1028 hPa1029 hPa1028 hPa
Cloud cover28%20%83%69%27%23%72%96%
Heat index8°C (46°F)7°C (45°F)7°C (45°F)9°C (49°F)11°C (52°F)12°C (54°F)12°C (53°F)12°C (53°F)
Dew point1°C (34°F)1°C (34°F)2°C (35°F)3°C (37°F)4°C (39°F)5°C (41°F)5°C (42°F)6°C (43°F)
Wind
Speed5km/h (3mph)3km/h (2mph)4km/h (3mph)4km/h (2mph)5km/h (3mph)7km/h (4mph)6km/h (4mph)9km/h (6mph)
Gusts8km/h (5mph)5km/h (3mph)7km/h (5mph)6km/h (3mph)7km/h (4mph)10km/h (6mph)11km/h (7mph)14km/h (9mph)
Direction 54°
NE
345°
NNW
341°
NNW
288°
WNW
232°
SW
209°
SSW
244°
WSW
244°
WSW
Wind chill7°C (45°F)7°C (45°F)7°C (45°F)9°C (49°F)11°C (52°F)12°C (53°F)11°C (52°F)11°C (51°F)
Waves
Height1.0m (3.2ft)1.0m (3.1ft)0.9m (3.1ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)
Direction 75°
ENE
77°
ENE
75°
ENE
77°
ENE
78°
ENE
77°
ENE
78°
ENE
78°
ENE
Period14.5 sec.14.3 sec.13.8 sec.13.5 sec.13.3 sec.12.9 sec.12.6 sec.12.4 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)0.7m (2.3ft)1.0m (3.3ft)1.1m (3.6ft)0.8m (2.6ft)1.2m (3.9ft)1.1m (3.6ft)
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 Saturday 20 December 2025

On Saturday 20 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 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 6.2mph km/h (with gusts up to 9.9mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (53°F)10°C (51°F)10°C (49°F)11°C (52°F)14°C (56°F)16°C (60°F)14°C (58°F)14°C (57°F)
Perceived temperature11°C (51°F)9°C (49°F)8°C (47°F)11°C (51°F)13°C (55°F)16°C (60°F)14°C (58°F)13°C (56°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity67%70%73%67%58%58%66%72%
Barometric pressure1028 hPa1028 hPa1028 hPa1029 hPa1026 hPa1025 hPa1026 hPa1026 hPa
Cloud cover89%44%9%44%17%67%100%95%
Heat index12°C (53°F)10°C (51°F)10°C (49°F)11°C (52°F)14°C (56°F)16°C (60°F)14°C (58°F)14°C (57°F)
Dew point6°C (42°F)5°C (41°F)5°C (41°F)6°C (42°F)6°C (42°F)7°C (45°F)8°C (47°F)9°C (48°F)
Wind
Speed9km/h (6mph)9km/h (6mph)8km/h (5mph)7km/h (4mph)10km/h (6mph)8km/h (5mph)7km/h (4mph)9km/h (5mph)
Gusts15km/h (9mph)15km/h (9mph)15km/h (9mph)10km/h (6mph)14km/h (9mph)12km/h (7mph)13km/h (8mph)16km/h (10mph)
Direction 247°
WSW
266°
W
283°
WNW
261°
W
221°
SW
221°
SW
230°
SW
255°
WSW
Wind chill11°C (51°F)9°C (49°F)8°C (47°F)11°C (51°F)13°C (55°F)16°C (60°F)14°C (58°F)13°C (56°F)
Waves
Height0.9m (2.9ft)0.8m (2.8ft)0.8m (2.7ft)0.8m (2.6ft)0.8m (2.5ft)0.8m (2.6ft)0.9m (3.0ft)1.0m (3.3ft)
Direction 78°
ENE
78°
ENE
79°
ENE
79°
ENE
80°
E
80°
E
81°
E
81°
E
Period12.0 sec.11.8 sec.11.6 sec.11.4 sec.11.2 sec.11.1 sec.5.0 sec.5.3 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)0.7m (2.3ft)0.8m (2.6ft)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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