Niyodo Rivermouth Surf Break

Lat Long: 33.54° N 133.69° E

Niyodo Rivermouth 48 hour detailed Surf Forecast

Issued: 8 pm 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Niyodo Rivermouth sea temperature is
29.4°C
1.7° 

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


How big are the waves at Niyodo Rivermouth today (26 Aug):

  • Morning surf: Morning surf (26 Aug, local time) - 6.5ft (2.0m), 12s period with S swell.
  • Afternoon surf: Afternoon surf (26 Aug, local time) - 6ft (1.8m), 12s period with S swell.
  • Evening surf: Evening surf (26 Aug, local time) - 5ft (1.5m), 11s period with SSW swell.

The current surf forecast for Niyodo Rivermouth at 1AM is: 2.5m 12s primary swell from a South-southeast direction and 0.5m 14s secondary swell from a East direction (forecast issued at 08:00pm August 25). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (JST) & DateWave HeightWave Period
Morning (26 Aug)6.5ft (2.0m)12s
Afternoon (26 Aug)6ft (1.8m)12s
Evening (26 Aug)5ft (1.5m)11s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Fri afternoon. Warm (max 30°C on Wed morning, min 26°C on Tue night). Wind will be generally light.

Tue
25
Wednesday
26
Thursday
27
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)
!
!
!
4
4
4
2
2
3
3
3
3
3
2
1
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SSE
13
3
SSE
13
3
SSE
13
2.5
SSE
12
2.3
S
12
2
S
12
2.2
S
11
1.8
S
12
1.7
SSW
12
1.5
SSW
11
1.5
SSW
11
1.4
SSW
10
1.3
SSW
10
1.2
SSW
10
1.2
SSW
9
1.1
SSE
10
1.1
SSE
9
1.1
SSE
9
Wave Graph
Metric surfscale
Energy kJ
3521
2853
2422
1898
1480
1055
1170
879
805
515
505
419
331
275
232
226
201
188
Wind (km/h)
5
S
0
ENE
5
NNE
5
N
5
NNE
5
S
10
S
10
S
5
S
5
S
5
WNW
5
WSW
0
NNE
5
S
10
SSW
10
S
5
S
0
S
Wind State
on
glassy
off
glassy
glassy
glassy
on
on
on
glassy
glassy
glassy
glassy
glassy
on
on
on
glassy
High Tide
5:30PM1.61m
4:25AM1.63m
5:51PM1.69m
5:03AM1.74m
6:12PM1.76m
Low Tide
10:58PM0.96m
11:10AM0.25m
11:25PM0.84m
11:40AM0.20m
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:33
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:39
6:38
6:37
 mm
1
1
1
Temp °C
29
27
26
26
26
29
30
30
29
28
27
27
26
28
30
29
28
27
Feels °C
34
33
30
31
30
34
34
34
34
34
33
33
31
33
34
33
33
33
  • 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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