Nagahama Surf Break

Lat Long: 35.19° N 139.61° E

Nagahama 48 hour detailed Surf Forecast

Issued: 8 am 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nagahama sea temperature is
26.9° C
0.1° 

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


How big are the waves at Nagahama today (09 Aug):

  • Morning surf: Morning surf (09 Aug, local time) - 2.5ft (0.7m), 10s period with SSW swell.
  • Afternoon surf: Afternoon surf (09 Aug, local time) - 2.5ft (0.7m), 10s period with SSW swell.
  • Evening surf: Evening surf (09 Aug, local time) - 2ft (0.6m), 11s period with SSW swell.

The current surf forecast for Nagahama at 3PM is: 0.7m 10s primary swell from a South-southwest direction (forecast issued at 08:00am August 09). An open ocean swell of 0.3m 13s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (09 Aug)2.5ft (0.7m)10s
Afternoon (09 Aug)2.5ft (0.7m)10s
Evening (09 Aug)2ft (0.6m)11s

Table - waves today at Nagahama. (Swell directed towards the surf break)


Short Range Forecast

Heavy rain (total 28mm), heaviest during Tue night. Warm (max 28°C on Sun afternoon, min 23°C on Mon night). Winds increasing (calm on Sun morning, fresh winds from the SSW by Tue afternoon).

Sunday
9
Monday
10
Tuesday
11
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
1
1
1
0
0
1
1
1
1
1
1
1
0
0
0
0
0
1
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)
0.7
S
11
0.7
SSW
10
0.7
SSW
10
0.7
SSW
10
0.6
SSW
11
0.6
SSW
11
0.6
SSW
11
0.6
S
10
0.6
S
10
0.5
S
11
0.5
S
11
0.6
SSW
11
0.5
SSW
11
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
11
0.5
SSW
11
0.5
SSW
10
0.5
SSW
10
Wave Graph
Metric surfscale
Energy kJ
114
112
112
115
88
88
88
80
75
62
59
93
64
59
59
58
59
62
64
64
62
59
Wind (km/h)
5
SE
5
ESE
0
SSW
10
SSW
15
S
10
ESE
15
NE
20
NE
20
NE
20
NE
20
NE
15
NNE
20
ENE
25
NE
20
NE
25
NE
20
NE
5
SSW
20
SW
30
SSW
35
SSW
15
SSE
Wind State
cross-off
glassy
glassy
on
cross-on
cross-off
off
off
off
off
off
off
cross-off
off
off
off
off
glassy
on
on
on
cross-on
High Tide
4:15PM1.34m
1:20AM1.35m
4:39PM1.42m
2:33AM1.42m
5:02PM1.48m
Low Tide
8:11AM0.39m
8:48PM1.17m
9:07AM0.28m
9:39PM1.09m
9:51AM0.20m
part cloud
part cloud
part cloud
clear
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
4:56
4:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:36
6:35
 mm
11
Temp °C
25
26
27
28
27
26
26
25
25
26
27
28
28
25
24
23
23
24
23
25
25
23
Feels °C
29
30
31
30
28
28
27
25
25
26
27
29
28
24
23
22
22
26
22
23
23
24
  • 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
How to use the Wavefinder 

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