Niyodo Rivermouth Surf Break

Lat Long: 33.54° N 133.69° E

Niyodo Rivermouth 48 hour detailed Surf Forecast

Issued: 2 am 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Niyodo Rivermouth sea temperature is
29.4°C
2.1° 

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 (08 Sep):

  • Morning surf: Morning surf (08 Sep, local time) - 4.5ft (1.4m), 9s period with S swell.
  • Afternoon surf: Afternoon surf (08 Sep, local time) - 6ft (1.8m), 9s period with S swell.
  • Evening surf: Evening surf (08 Sep, local time) - 10ft (3.0m), 10s period with SSE swell.

The current surf forecast for Niyodo Rivermouth at 9AM is: 1.4m 9s primary swell from a South direction and 0.4m 10s secondary swell from a Southeast direction, 1.5m 8s secondary swell from a East-southeast direction (forecast issued at 02:00am September 08). The wind direction is predicted to be glassy and the swell rating is 3.

Time (JST) & DateWave HeightWave Period
Morning (08 Sep)4.5ft (1.4m)9s
Afternoon (08 Sep)6ft (1.8m)9s
Evening (08 Sep)10ft (3.0m)10s

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


Short Range Forecast

Heavy rain (total 53mm), heaviest during Tue night. Warm (max 28°C on Tue afternoon, min 22°C on Wed night). Wind will be generally light.

Tuesday
8
Wednesday
9
Thursday
10
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
4
!
!
!
!
0
0
0
1
2
2
2
2
2
2
2
2
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)
1.6
SE
9
1.4
S
10
1.3
S
10
1.4
S
9
1.6
S
9
1.8
S
9
2.4
SSE
10
3
SSE
10
3
SSE
9
3
SSE
9
3
SSE
9
3
SSE
9
3
S
9
2.2
SSE
8
1.8
SSE
8
1.7
SSE
8
1.6
SE
8
1.4
SE
8
1.4
SE
8
1.3
SE
8
1.3
SE
9
1.2
SE
9
1.1
SE
9
1.1
SE
9
Wave Graph
Metric surfscale
Energy kJ
399
354
299
327
431
568
1021
1432
1406
1376
1469
1317
1173
657
443
374
314
260
232
216
243
231
197
189
Wind (km/h)
5
NNE
10
NNE
5
ENE
0
ENE
5
ENE
5
NE
5
ENE
5
NE
10
ENE
10
E
20
ESE
20
SE
20
SSE
15
SSE
10
ESE
10
N
10
N
10
N
10
N
10
N
5
NNW
5
NNW
5
NW
5
NNW
Wind State
cross-off
off
glassy
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross
off
off
off
off
off
cross-off
glassy
glassy
glassy
High Tide
3:00AM1.57m
4:57PM1.71m
4:03AM1.71m
5:26PM1.79m
4:52AM1.83m
5:53PM1.84m
Low Tide
9:49PM1.08m
10:00AM0.23m
10:32PM0.91m
10:46AM0.15m
11:08PM0.74m
11:25AM0.13m
part cloud
part cloud
light rain
light rain
thunderstorm
thunderstorm
thunderstorm
rain showers
light rain
thunderstorm
mod rain
mod rain
thunderstorm
thunderstorm
rain showers
light rain
light rain
cloud
light rain
light rain
light rain
rain showers
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:43
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:22
6:21
6:19
 mm
2
4
2
3
2
1
1
5
9
7
5
3
2
3
1
1
2
1
1
Temp °C
25
25
25
26
27
27
28
26
26
26
27
27
26
26
26
23
22
22
22
22
23
24
24
24
Feels °C
28
28
29
32
32
32
34
30
30
30
30
30
28
29
31
26
23
24
24
24
26
27
28
28
  • 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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