Niyodo Rivermouth Surf Break

Lat Long: 33.54° N 133.69° E

Niyodo Rivermouth 48 hour detailed Surf Forecast

Issued: 2 am 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Niyodo Rivermouth sea temperature is
29.8°C
2.2° 

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 (30 Aug):

  • Morning surf: Morning surf (30 Aug, local time) - 3ft (0.9m), 7s period with SSW swell.
  • Afternoon surf: Afternoon surf (30 Aug, local time) - 3ft (0.9m), 7s period with SSW swell.
  • Evening surf: Evening surf (30 Aug, local time) - 2.5ft (0.8m), 7s period with SSW swell.

The current surf forecast for Niyodo Rivermouth at 6AM is: 1.1m 7s primary swell from a South-southwest direction and 0.9m 7s secondary swell from a South-southwest direction, 0.4m 11s secondary swell from a Southeast direction (forecast issued at 02:00am August 30). The wind direction is predicted to be glassy and the swell rating is 2.

Time (JST) & DateWave HeightWave Period
Morning (30 Aug)3ft (0.9m)7s
Afternoon (30 Aug)3ft (0.9m)7s
Evening (30 Aug)2.5ft (0.8m)7s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Sun afternoon. Warm (max 30°C on Sun morning, min 25°C on Mon night). Wind will be generally light.

Sunday
30
Monday
31
Tuesday
1
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)
2
1
2
1
0
0
0
1
1
1
1
1
0
0
0
1
1
1
1
1
0
1
1
2
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)
1.1
SSW
7
1
SSW
7
1.1
SSW
7
0.9
SSW
7
0.9
SSW
7
0.9
SSW
7
0.9
SSW
7
0.8
SSW
7
0.9
SSW
7
0.8
SSW
8
0.8
SSW
8
0.7
S
8
0.8
S
9
0.8
S
8
0.7
S
9
0.7
S
9
0.7
S
9
0.7
S
9
0.5
E
14
0.5
E
13
0.6
E
13
0.6
E
13
0.7
E
12
0.7
E
12
Wave Graph
Metric surfscale
Energy kJ
140
117
134
89
89
86
86
69
74
87
94
68
94
92
73
74
74
73
96
92
126
121
148
144
Wind (km/h)
5
NE
5
N
5
N
0
SW
10
S
10
S
5
S
5
NE
5
NE
5
NE
5
NE
5
SE
10
S
10
S
5
S
0
SE
0
E
5
ENE
5
NE
5
SE
10
SSE
10
SSE
5
SE
5
NE
Wind State
glassy
glassy
glassy
glassy
on
on
on
glassy
cross-off
cross-off
cross-off
glassy
on
on
on
glassy
glassy
glassy
cross-off
glassy
on
on
cross-on
glassy
High Tide
6:50AM1.86m
7:19PM1.85m
7:27AM1.82m
7:43PM1.84m
8:08AM1.74m
8:08PM1.81m
Low Tide
00:51AM0.50m
1:05PM0.28m
1:22AM0.42m
1:34PM0.40m
1:56AM0.37m
2:03PM0.55m
part cloud
part cloud
clear
clear
clear
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:37
5:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:34
6:32
6:30
 mm
3
3
1
Temp °C
27
26
26
28
30
30
28
27
26
26
26
29
30
29
28
27
26
26
25
28
29
29
28
26
Feels °C
33
31
31
33
34
35
34
33
31
31
31
34
34
33
33
33
31
31
29
32
31
32
32
31
  • 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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