Niyodo Rivermouth Surf Break

Lat Long: 33.54° N 133.69° E

Niyodo Rivermouth 48 hour detailed Surf Forecast

Issued: 8 am 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Niyodo Rivermouth sea temperature is
28.9° C
1.2° 

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 (13 Aug):

  • Morning surf: Morning surf (13 Aug, local time) - 2.5ft (0.8m), 9s period with SSW swell.
  • Afternoon surf: Afternoon surf (13 Aug, local time) - 2.5ft (0.8m), 9s period with SSW swell.
  • Evening surf: Evening surf (13 Aug, local time) - 2.5ft (0.8m), 9s period with SSW swell.

The current surf forecast for Niyodo Rivermouth at 12PM is: 0.8m 9s primary swell from a South-southwest direction and 0.4m 10s secondary swell from a East direction, 0.4m 3s secondary swell from a East-southeast direction (forecast issued at 08:00am August 13). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (13 Aug)2.5ft (0.8m)9s
Afternoon (13 Aug)2.5ft (0.8m)9s
Evening (13 Aug)2.5ft (0.8m)9s

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


Short Range Forecast

Moderate rain (total 11mm), heaviest on Thu morning. Warm (max 28°C on Fri morning, min 24°C on Thu night). Wind will be generally light.

Thursday
13
Friday
14
Saturday
15
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
0
0
0
0
0
1
1
1
1
0
0
0
1
2
2
2
2
0
0
0
1
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)
0.9
SSW
9
0.8
SSW
9
0.8
SSW
9
0.8
SSW
9
0.8
SSW
9
0.8
SSW
9
0.8
SSW
9
0.7
S
9
0.8
S
9
0.8
S
9
0.6
E
11
0.7
E
11
0.7
E
10
0.7
E
10
0.7
E
10
0.8
S
10
0.8
S
10
0.8
S
10
0.8
S
9
0.8
S
9
0.8
S
9
0.7
E
10
Wave Graph
Metric surfscale
Energy kJ
144
113
110
110
110
108
106
78
96
94
79
108
100
96
96
125
122
117
106
103
101
94
Wind (km/h)
5
NNE
10
SE
15
SSE
10
SSE
10
SE
5
ESE
5
NE
5
NNE
5
NNE
5
S
10
S
10
SSE
5
S
5
N
5
NNE
5
NNE
5
NNE
5
S
10
S
10
SSE
5
SE
5
ENE
Wind State
glassy
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
off
glassy
on
on
on
glassy
glassy
glassy
off
glassy
on
on
cross-on
cross-off
High Tide
5:42AM1.90m
6:59PM1.87m
6:27AM1.93m
7:27PM1.86m
7:10AM1.89m
7:54PM1.84m
Low Tide
12:23PM-0.02m
00:40AM0.67m
1:00PM0.06m
1:16AM0.57m
1:33PM0.19m
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
rain showers
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
cloud
cloud
thunderstorm
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:52
6:52
 mm
1
3
2
1
1
1
1
1
Temp °C
24
27
27
27
27
26
25
24
24
27
28
28
27
25
25
24
24
27
28
28
27
26
Feels °C
27
29
29
29
30
30
29
27
27
31
30
30
30
29
29
27
27
30
30
31
31
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 

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