Niyodo Rivermouth Surf Break

Lat Long: 33.54° N 133.69° E

Niyodo Rivermouth 48 hour detailed Surf Forecast

Issued: 2 am 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 (04 Sep):

  • Morning surf: Morning surf (04 Sep, local time) - 6ft (1.8m), 10s period with S swell.
  • Afternoon surf: Afternoon surf (04 Sep, local time) - 5.5ft (1.7m), 10s period with S swell.
  • Evening surf: Evening surf (04 Sep, local time) - 5ft (1.5m), 10s period with S swell.

The current surf forecast for Niyodo Rivermouth at 6AM is: 1.8m 10s primary swell from a South direction and 0.5m 10s secondary swell from a East direction (forecast issued at 02:00am September 04). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 3.

Time (JST) & DateWave HeightWave Period
Morning (04 Sep)6ft (1.8m)10s
Afternoon (04 Sep)5.5ft (1.7m)10s
Evening (04 Sep)5ft (1.5m)10s

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


Short Range Forecast

Heavy rain (total 98mm), heaviest during Fri afternoon. Warm (max 29°C on Sun morning, min 20°C on Fri afternoon). Wind will be generally light.

Friday
4
Saturday
5
Sunday
6
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)
3
3
3
3
3
3
2
2
2
3
3
3
3
2
2
2
2
3
3
3
!
!
!
!
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)
1.8
SSE
10
1.9
SSE
10
1.8
S
10
1.8
S
10
1.8
S
10
1.7
S
10
1.6
S
10
1.5
S
10
1.2
SSW
10
1.8
E
7
2
E
8
2
E
8
1.7
E
7
1.5
E
7
1.4
E
7
1.4
E
7
1.8
E
7
2
E
8
2.3
ESE
8
2.2
E
8
3
ESE
9
3
E
10
3
E
10
4.5
E
11
Wave Graph
Metric surfscale
Energy kJ
616
671
627
618
625
533
464
422
263
330
520
463
298
233
187
176
311
471
702
675
1391
1895
2098
4307
Wind (km/h)
5
N
5
NNE
5
NNE
5
N
25
NNE
10
NE
5
NE
5
NE
5
N
10
NNE
10
N
5
N
5
NNE
5
N
5
N
5
N
10
NNE
10
NNE
10
N
5
N
0
S
10
E
5
NW
5
N
Wind State
off
glassy
off
off
off
cross-off
glassy
glassy
glassy
off
off
off
cross-off
glassy
off
off
off
cross-off
off
off
glassy
cross
glassy
off
High Tide
9:09PM1.67m
11:15AM1.35m
9:51PM1.57m
1:52PM1.33m
11:11PM1.47m
3:38PM1.46m
Low Tide
4:17AM0.45m
3:53PM1.10m
5:43AM0.50m
5:37PM1.25m
7:35AM0.47m
8:37PM1.23m
rain showers
part cloud
cloud
light rain
heavy rain
heavy rain
mod rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
light rain
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:39
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:28
6:25
6:24
 mm
1
5
29
40
8
5
5
2
1
1
1
1
Temp °C
26
25
25
24
22
20
21
20
20
21
22
23
26
26
25
25
25
24
24
26
29
28
27
25
Feels °C
30
29
28
28
21
21
24
23
22
23
24
26
30
30
28
28
28
27
27
30
33
31
31
29
  • 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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