Nagahama Surf Break

Lat Long: 35.19° N 139.61° E

Nagahama 48 hour detailed Surf Forecast

Issued: 2 pm 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):

  • 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 6PM is: 0.2m 9s primary swell from a South-southwest direction and 0.1m 11s secondary swell from a Southeast direction, 0.4m 3s secondary swell from a South-southeast direction (forecast issued at 02:00pm August 20). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (20 Aug)--
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

Light rain (total 8mm), mostly falling on Sat night. Warm (max 27°C on Sat night, min 25°C on Sat night). Winds decreasing (fresh winds from the SSW on Fri afternoon, calm by Sat night).

Thu
20
Friday
21
Saturday
22
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
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)
0.2
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
SSW
4
0.8
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
4
8
8
7
8
25
27
27
78
101
27
106
35
36
34
32
32
32
32
32
Wind (km/h)
15
SSW
15
SSW
15
S
20
S
20
SSW
20
SSW
15
SSW
15
SSW
25
SSW
30
S
30
SSW
30
SSW
25
SSW
20
SW
10
SW
5
SSW
15
S
20
S
20
S
15
S
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
High Tide
9:27AM1.19m
8:27PM1.44m
11:35AM1.10m
8:59PM1.38m
Low Tide
2:16PM0.93m
4:02AM0.54m
2:23PM1.07m
5:39AM0.54m
clear
cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
27
Feels °C
28
27
27
28
27
28
28
28
27
26
25
26
26
27
29
29
28
28
27
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.


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