Nagahama Surf Break

Lat Long: 35.19° N 139.61° E

Nagahama 48 hour detailed Surf Forecast

Issued: 2 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nagahama sea temperature is
26.5° C
0.4° 

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 (20 Aug):

  • Morning surf: Morning surf (20 Aug, local time) - 0.5ft (0.2m), 6s period with SSE swell.
  • Afternoon surf: Afternoon surf (20 Aug, local time) - 0.5ft (0.2m), 9s period with SSW swell.
  • Evening surf: Evening surf (20 Aug, local time) - 0.5ft (0.2m), 8s period with SSW swell.

The current surf forecast for Nagahama at 5AM is: 0.1m 10s primary swell from a Southeast direction and 0.2m 6s secondary swell from a South-southeast direction (forecast issued at 02:00am August 20). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (20 Aug)0.5ft (0.2m)6s
Afternoon (20 Aug)0.5ft (0.2m)9s
Evening (20 Aug)0.5ft (0.2m)8s

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


Short Range Forecast

Some drizzle, heaviest during Sat night. Warm (max 27°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
SSW
8
0.2
SSE
6
0.2
SSE
6
0.2
SSE
6
0.2
SSE
6
0.2
SSW
9
0.2
SSW
9
0.2
SSW
8
0.2
S
10
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.7
S
9
0.8
S
9
0.9
S
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
10
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
Wave Graph
Metric surfscale
Energy kJ
6
4
4
4
4
8
8
7
8
25
27
27
78
101
127
26
35
36
34
32
32
32
32
32
Wind (km/h)
10
S
5
SSE
10
SSE
10
S
10
SSW
15
SSW
15
S
15
S
20
SSW
20
SSW
15
SSW
15
SSW
25
S
25
S
25
S
25
SSW
25
SSW
25
SSW
15
SW
15
SSW
20
SSW
20
SSW
20
SSW
10
SSW
Wind State
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
cross-on
cross-on
on
High Tide
9:27AM1.19m
8:27PM1.44m
11:35AM1.10m
8:59PM1.38m
Low Tide
2:56AM0.51m
2:16PM0.93m
4:02AM0.54m
2:23PM1.07m
5:39AM0.54m
clear
clear
clear
part cloud
clear
cloud
cloud
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:03
5:05
5:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:24
6:23
6:22
 mm
1
Temp °C
26
26
25
26
26
26
26
26
26
26
25
25
26
26
26
26
26
26
26
26
26
26
27
27
Feels °C
29
30
28
30
29
27
28
28
28
28
27
27
27
27
26
26
27
27
29
29
28
27
29
30
  • 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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nagahama surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Nearest locationNearest