Nagahama surfForecast / Kanagawa / Japan

information circle16 Day Weather and Surf, issued 8 pm Tuesday 26 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Nagahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nagahama sea temperature is
20.3° C
(Which is 1.2°C colder than average for this time of year)

Best Forecast Surf Conditions for Nagahama this week:

The surf forecast for Nagahama over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 29) at 9AM. The primary swell is predicted to be 1.8m and 7s period with a secondary swell of 1.0m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Nagahama in the next 16 days are 1.4m 16s and forecast to arrive on Wednesday (Jun 03) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Friday (May 29) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Fri 29th May)6ft (1.8m) 7s
Best Surf 9AM (Fri 29th May)6ft (1.8m) 7s
Most Powerful 3AM (Wed 3rd Jun)4.5ft (1.4m) 16s

Table - best surf conditions forecast for Nagahama over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 3mm), mostly falling on Thu morning. Warm (max 24°C on Wed morning, min 20°C on Wed night). Winds decreasing (fresh winds from the SSW on Wed night, calm by Fri morning).

Days 5-7 Weather Summary

Some drizzle, heaviest during Fri night. Warm (max 25°C on Sun morning, min 20°C on Fri night). Wind will be generally light.

Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tue
2
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
2
0
0
0
0
0
1
0
0
2
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
SE
11
0.3
SE
7
0.1
SE
14
0.3
SE
8
0.3
SE
10
0.7
S
5
1.1
S
6
1.8
SSW
7
1
SSW
7
0.7
SSW
8
0.3
SSW
7
0.4
SSE
6
0.4
SSE
6
0.4
S
13
0.7
S
13
0.9
SSW
13
1.2
SSW
14
1.4
SSW
14
1.4
SSW
15
1.4
SSW
15
1.4
SSW
15
Wave Graph
Metric surfscale
Energy kJ
5
9
7
10
14
25
100
352
117
62
9
16
12
58
163
299
631
763
860
867
879
Wind (km/h)
5
NNE
15
NNE
10
SSW
30
SSW
10
S
10
SSE
20
SW
5
NNW
10
S
20
ENE
5
NE
10
SW
5
S
10
NE
20
S
10
S
5
SSE
20
S
25
SSW
20
SSW
35
S
off
off
on
cross-on
cross-on
cross-on
on
glassy
cross-on
cross-off
glassy
on
cross-on
off
cross-on
cross-on
glassy
cross-on
on
cross-on
cross-on
High Tide
1:22AM1.28m
2:20PM1.18m
1:56AM1.33m
3:18PM1.27m
2:27AM1.38m
4:06PM1.34m
2:59AM1.43m
4:51PM1.39m
3:30AM1.47m
5:33PM1.42m
4:02AM1.50m
6:14PM1.42m
4:35AM1.50m
Low Tide
8:00AM0.50m
7:55PM0.69m
8:41AM0.34m
8:44PM0.74m
9:19AM0.20m
9:26PM0.79m
9:56AM0.08m
10:04PM0.83m
10:33AM-0.00m
10:40PM0.88m
11:10AM-0.05m
11:16PM0.91m
11:48AM-0.05m
part cloud
part cloud
part cloud
part cloud
light rain
light rain
clear
clear
rain showers
rain showers
part cloud
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:30
4:30
4:28
4:28
4:28
4:28
4:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:46
6:47
6:47
6:49
6:50
6:50
1
1
1
1
Temp °C
21
24
23
22
21
21
22
24
24
21
21
22
22
25
23
22
22
22
22
22
21
22
25
23
21
23
23
24
26
25
19
21
22
22
26
21
22
23
19
19
18
17
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
8
0.3
SE
7
0.4
SE
8
0.3
SE
8
0.3
S
4
0.1
SE
9
0.1
SE
10
1
S
7
1
SSW
7
0.7
SSW
8
0.3
SSW
7
0.4
SSE
6
0.4
SSE
6
0.4
S
13
0.7
S
13
0.9
SSW
13
1.2
SSW
14
1.4
SSW
14
1.4
SSW
15
1.4
SSW
15
1.4
SSW
15
Energy kJ
15
9
15
10
2
3
4
100
117
62
9
16
12
55
163
299
631
763
860
867
879
Swell 2
Height (m)
Direction
Period (s)
0.1
S
6
0.1
SE
10
0.1
S
6
0.1
SE
10
0.3
SE
10
0.1
S
9
0.1
E
12
0.2
ESE
12
0.1
SE
12
0.1
SE
12
0.3
SSE
6
0.2
SSW
7
0.1
S
17
0.3
SSW
17
0.4
SSW
16
0.2
SSE
5
0.4
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
Energy kJ
1
4
1
4
14
2
3
14
6
6
8
5
6
58
91
3
30
5
5
5
5
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
11
0.1
S
6
0.1
SE
14
0.1
E
13
0.1
E
13
0.1
E
13
0.2
ESE
13
0.1
S
15
0.1
S
14
0.1
SE
7
0.1
E
12
0.1
SE
11
0.3
SSE
6
0.1
SE
12
0.1
SE
12
0.3
SE
12
0.3
SE
12
0.2
ESE
9
0.3
ESE
9
0.1
S
15
Energy kJ
5
1
7
4
3
3
16
4
4
2
3
5
7
6
5
21
21
9
16
4
Wind waves
Height (m)
Direction
Period (s)
0.4
SSW
3
0.7
S
5
1.1
S
6
1.8
SSW
7
0.4
NNE
3
0.3
S
3
0.3
SSE
6
Energy kJ
3
25
100
352
5
1
6
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
1
1
1
2
4
1
1
1
2
1
2
2
2
4
3
4
5
Distance (km)
39
39
11
87
42
42
24
0
11
14
8
11
43
0
72
24
0
72
24
87
492
Best forecast wave conditions in Kanagawa
Rating
(10 max)
1
1
1
1
2
4
1
1
1
2
2
4
3
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
2
2
2
3
1
3
4
1
2
2
2
3
3
4
4
4
5
5
5
Header Global
Rating
(10 max)
6
7
7
9
6
9
9
6
5
5
5
5
8
7
6
4
5
6
6
6
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Nagahama Surf forecast

The above surf forecast table for Nagahama provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nagahama can be found by selecting the local surf guide option on the grey menu. Our Nagahama surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Nagahama) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Nagahama may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Nagahama is 6 km (4 miles) from Miura. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Miura. Miura has rooms for a wide range of budgets as well as car hire and transport links.

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