Niyodo Rivermouth Surf Break

Lat Long: 33.54° N 133.69° E

Niyodo Rivermouth 48 hour detailed Surf Forecast

Issued: 8 pm 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Niyodo Rivermouth sea temperature is
28.9° C
1.3° 

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 (14 Aug):

  • Morning surf: Morning surf (14 Aug, local time) - 2.5ft (0.8m), 9s period with SSW swell.
  • Afternoon surf: Afternoon surf (14 Aug, local time) - 2.5ft (0.8m), 9s period with SSW swell.
  • Evening surf: Evening surf (14 Aug, local time) - 2.5ft (0.7m), 10s period with E swell.

The current surf forecast for Niyodo Rivermouth at 2AM is: 0.8m 9s primary swell from a South direction and 0.5m 10s secondary swell from a East direction (forecast issued at 08:00pm August 13). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (14 Aug)2.5ft (0.8m)9s
Afternoon (14 Aug)2.5ft (0.8m)9s
Evening (14 Aug)2.5ft (0.7m)10s

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


Short Range Forecast

Moderate rain (total 15mm), heaviest on Sun morning. Warm (max 28°C on Fri morning, min 24°C on Thu night). Wind will be generally light.

Thu
13
Friday
14
Saturday
15
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
1
1
1
1
1
0
0
0
1
1
2
2
2
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
9
0.8
SSW
9
0.8
S
9
0.8
S
9
0.8
S
9
0.8
SSW
9
0.8
SSW
9
0.8
SSW
9
0.8
S
9
0.7
E
10
0.6
E
10
0.8
S
10
0.8
S
10
0.8
S
10
0.8
S
9
0.8
S
9
0.7
S
9
0.7
S
9
Wave Graph
Metric surfscale
Energy kJ
110
108
101
101
96
99
99
99
94
96
75
125
122
117
106
103
78
76
Wind (km/h)
10
SE
5
E
5
NE
5
NNE
5
NNE
5
SSE
10
S
10
S
5
SSW
0
NNE
5
NNE
5
N
5
N
5
S
10
S
10
S
5
SE
5
ENE
Wind State
cross-on
glassy
cross-off
cross-off
cross-off
glassy
on
on
on
glassy
glassy
off
off
glassy
on
on
cross-on
cross-off
High Tide
6:59PM1.87m
6:27AM1.93m
7:27PM1.86m
7:10AM1.89m
7:54PM1.84m
Low Tide
00:40AM0.67m
1:00PM0.06m
1:16AM0.57m
1:33PM0.19m
thunderstorm
thunderstorm
clear
clear
rain showers
clear
thunderstorm
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:52
6:52
 mm
2
1
1
1
1
1
Temp °C
26
25
24
24
24
27
28
28
27
25
24
24
24
27
28
28
27
26
Feels °C
29
29
27
27
27
31
30
30
30
29
27
27
27
30
30
30
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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