Surf Break

Lat Long: 35.19° N 139.61° E

Nagahama Surf Forecast and Surf Report

Issued: 8 am 23 Oct 2026 (local time)

Forecast update in  hr  min

Today's Nagahama sea temperature is
23.8°C
0.8° 

Nagahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Nagahama surf forecast from 23 Oct 2026:

  • Best quality surf: Tuesday 27 Oct, 3PM (local time) - 8ft (2.5m), 8s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 27 Oct, 3PM (local time) - 8ft (2.5m), 8s period, SSW swell with 964 kJ wave energy.
  • Next surfable swell (1★+): Friday 23 Oct, 3PM (local time) - 3ft (0.9m), 13s period with S swell.

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 (Oct 23) at 3PM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.5m and 15s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Nagahama in the next 16 days are 2.5m 8s and forecast to arrive on Tuesday (Oct 27) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Friday (Oct 23) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Fri 23rd Oct)3ft (0.9m) 13s
Best Surf 3PM (Tue 27th Oct)8ft (2.5m) 8s
Most Powerful 3PM (Tue 27th Oct)8ft (2.5m) 8s

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


Short Range Forecast

Heavy rain (total 21mm), heaviest during Sat afternoon. Warm (max 23°C on Sun morning, min 16°C on Fri morning). Mainly fresh winds.

Days 4-6 Weather Summary

Moderate rain (total 18mm), heaviest on Tue morning. Warm (max 23°C on Tue morning, min 13°C on Wed night). Mainly strong winds.

Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
2
2
0
1
0
2
1
0
0
0
0
4
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
S
13
0.9
S
13
0.9
SSW
13
1.3
SE
9
0.7
SSW
14
0.7
SSW
14
0.4
SW
14
1.5
SSW
6
0.7
SSW
7
0.3
SW
11
0.3
SE
10
0.3
SE
8
1.4
SSW
6
2.5
SSW
8
1.1
SSW
9
0.5
SSW
9
0.3
SSW
8
0.2
S
7
0.1
SE
11
0.4
SE
6
0.8
SSE
7
Wave Graph
Metric surfscale
Energy kJ
411
252
249
235
178
161
56
164
48
19
14
9
110
964
216
47
13
5
5
10
70
Wind (km/h)
20
NE
10
E
10
ENE
15
NE
35
N
0
W
15
WSW
15
N
15
NE
20
NNE
20
NE
15
N
45
SW
10
NNE
40
NNE
30
NNE
15
NE
20
NNE
25
NNE
30
NNE
5
NNE
Wind State
off
cross-off
cross-off
off
cross-off
glassy
cross-on
cross-off
off
off
off
cross-off
on
cross-off
off
cross-off
off
off
off
cross-off
off
High Tide
3:14PM1.46m
3:37AM1.47m
3:37PM1.50m
4:19AM1.54m
3:59PM1.54m
4:59AM1.57m
4:23PM1.57m
5:38AM1.56m
4:46PM1.59m
6:18AM1.52m
5:11PM1.59m
7:01AM1.46m
5:37PM1.57m
Low Tide
9:26PM0.51m
9:37AM0.57m
9:56PM0.36m
10:11AM0.62m
10:27PM0.24m
10:41AM0.68m
11:00PM0.15m
11:11AM0.76m
11:33PM0.10m
11:39AM0.84m
00:08AM0.09m
12:08PM0.92m
00:45AM0.13m
part cloud
cloud
light rain
mod rain
heavy rain
cloud
cloud
cloud
cloud
cloud
light rain
mod rain
mod rain
rain showers
part cloud
part cloud
cloud
part cloud
mod rain
rain showers
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
—
—
5:54
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—
5:54
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—
5:56
—
—
5:56
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—
5:58
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—
5:58
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—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
4:57
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—
4:55
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—
4:54
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—
4:53
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—
4:52
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—
4:52
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4:51
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 mm
—
—
1
7
13
—
—
—
—
—
1
7
7
3
—
—
—
—
6
1
3
Temp °C
18
19
20
18
18
22
23
20
20
20
20
22
23
20
20
17
18
16
11
12
13
Feels °C
16
18
20
17
15
21
24
19
20
19
19
19
22
20
21
11
13
10
5
6
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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