Niyodo Rivermouth Surf Break

Lat Long: 33.54° N 133.69° E

Niyodo Rivermouth 48 hour detailed Surf Forecast

Issued: 2 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Niyodo Rivermouth sea temperature is
27.9°C
0.9° 

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 Sep):

  • Morning surf: Morning surf (14 Sep, local time) - 3.5ft (1.1m), 8s period with SE swell.
  • Afternoon surf: Afternoon surf (14 Sep, local time) - 3.5ft (1.1m), 8s period with SE swell.
  • Evening surf: Evening surf (14 Sep, local time) - 4ft (1.2m), 8s period with SE swell.

The current surf forecast for Niyodo Rivermouth at 10AM is: 1.1m 8s primary swell from a Southeast direction and 0.4m 13s secondary swell from a East direction (forecast issued at 02:00am September 14). The wind direction is predicted to be glassy and the swell rating is 2.

Time (JST) & DateWave HeightWave Period
Morning (14 Sep)3.5ft (1.1m)8s
Afternoon (14 Sep)3.5ft (1.1m)8s
Evening (14 Sep)4ft (1.2m)8s

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


Short Range Forecast

Heavy rain (total 33mm), heaviest during Mon night. Warm (max 28°C on Mon morning, min 22°C on Wed night). Wind will be generally light.

Monday
14
Tuesday
15
Wednesday
16
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
2
2
2
1
1
1
2
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
1
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
SE
8
1.1
SE
9
1.1
SE
8
1.1
SE
8
1.1
SE
8
1.1
SE
8
1.1
SE
8
1.2
SE
8
1.3
SE
10
1.4
SE
10
1.4
SE
9
1.4
ESE
9
1.4
ESE
9
1.4
ESE
9
1.3
ESE
9
1.3
ESE
9
1.2
ESE
9
1.1
ESE
9
1.1
ESE
9
1
ESE
9
1.2
ESE
9
0.9
ESE
9
1.3
ESE
9
0.8
ESE
9
Wave Graph
Metric surfscale
Energy kJ
138
170
166
162
162
154
184
191
296
334
360
334
327
320
255
249
211
194
194
165
213
111
264
86
Wind (km/h)
5
ENE
5
NE
5
NNE
0
SSE
10
SSE
10
SSE
10
S
0
SE
0
SE
5
NE
5
NNE
0
N
5
SSW
5
SSW
5
W
5
NNE
5
NNE
5
NNW
5
N
0
NW
5
S
5
S
0
NNW
5
N
Wind State
cross-off
cross-off
off
glassy
on
on
on
glassy
glassy
glassy
glassy
glassy
glassy
cross-on
glassy
off
off
glassy
off
glassy
glassy
glassy
glassy
off
High Tide
7:33AM1.81m
7:27PM1.81m
8:10AM1.69m
7:49PM1.75m
8:48AM1.55m
8:09PM1.68m
Low Tide
1:18AM0.30m
1:29PM0.54m
1:49AM0.31m
1:53PM0.70m
2:22AM0.36m
2:16PM0.85m
thunderstorm
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
light rain
cloud
cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:47
5:47
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:14
6:13
6:10
 mm
1
1
1
4
1
1
1
3
1
3
2
1
4
3
4
2
Temp °C
25
25
24
27
28
28
26
25
24
24
24
25
27
27
26
24
24
24
23
26
25
26
25
24
Feels °C
29
29
27
32
32
31
29
30
29
28
28
30
31
30
31
28
27
27
26
30
29
31
29
27
  • 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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