Niyodo Rivermouth Surf Break

Lat Long: 33.54° N 133.69° E

Niyodo Rivermouth 48 hour detailed Surf Forecast

Issued: 8 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Niyodo Rivermouth sea temperature is
30.0°C
2.6° 

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 (05 Sep):

  • Morning surf: Morning surf (05 Sep, local time) - 3.5ft (1.1m), 9s period with S swell.
  • Afternoon surf: Afternoon surf (05 Sep, local time) - 4.5ft (1.3m), 7s period with E swell.
  • Evening surf: Evening surf (05 Sep, local time) - 5ft (1.5m), 7s period with ESE swell.

The current surf forecast for Niyodo Rivermouth at 3AM is: 1.2m 10s primary swell from a South-southwest direction and 0.7m 8s secondary swell from a South-southeast direction (forecast issued at 08:00pm September 04). An open ocean swell of 1.0m 6s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 2.

Time (JST) & DateWave HeightWave Period
Morning (05 Sep)3.5ft (1.1m)9s
Afternoon (05 Sep)4.5ft (1.3m)7s
Evening (05 Sep)5ft (1.5m)7s

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


Short Range Forecast

Heavy rain (total 50mm), heaviest during Sun night. Warm (max 28°C on Mon afternoon, min 22°C on Fri night). Wind will be generally light.

Fri
4
Saturday
5
Sunday
6
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)
3
3
2
2
2
2
2
2
2
2
2
2
2
3
!
!
!
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Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
S
10
1.6
S
10
1.3
SSW
10
1.2
SSW
10
1.1
SSW
10
1.1
S
9
1.2
E
7
1.3
E
7
1.3
E
7
1.5
ESE
7
1.6
ESE
7
1.6
E
7
1.7
E
8
2.3
ESE
8
3
E
9
3
E
10
3.5
E
10
4.5
E
11
Wave Graph
Metric surfscale
Energy kJ
522
480
307
258
210
203
143
176
148
215
259
285
346
704
1603
1958
2550
4717
Wind (km/h)
5
E
10
ENE
5
NE
5
NE
5
NNE
0
NNE
0
S
0
SSE
5
NW
5
N
10
N
10
NNE
10
N
5
N
5
NNE
10
NNE
10
N
10
N
Wind State
glassy
cross-off
glassy
glassy
off
glassy
glassy
glassy
glassy
glassy
off
off
off
off
glassy
off
off
off
High Tide
9:51PM1.57m
1:52PM1.33m
11:11PM1.47m
3:38PM1.46m
Low Tide
3:53PM1.10m
5:43AM0.50m
5:37PM1.25m
7:35AM0.47m
8:37PM1.23m
heavy rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
rain showers
cloud
cloud
light rain
light rain
light rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:28
6:25
6:24
 mm
16
4
3
1
1
1
3
1
8
Temp °C
23
22
22
22
22
23
24
25
25
24
24
24
24
25
25
24
24
22
Feels °C
27
24
26
25
24
26
28
29
29
27
26
26
27
28
30
28
27
24
  • 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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