Niyodo Rivermouth Surf Break

Lat Long: 33.54° N 133.69° E

Niyodo Rivermouth 48 hour detailed Surf Forecast

Issued: 8 pm 07 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 (1.3m), 9s period with S swell.
  • Afternoon surf: Afternoon surf (08 Sep, local time) - 5.5ft (1.7m), 9s period with S swell.
  • Evening surf: Evening surf (08 Sep, local time) - 7ft (2.2m), 9s period with SSE swell.

The current surf forecast for Niyodo Rivermouth at 4AM is: 1.4m 10s primary swell from a South direction and 1.4m 8s secondary swell from a East-southeast direction (forecast issued at 08:00pm September 07). An open ocean swell of 0.4m 8s 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 (08 Sep)4.5ft (1.3m)9s
Afternoon (08 Sep)5.5ft (1.7m)9s
Evening (08 Sep)7ft (2.2m)9s

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


Short Range Forecast

Heavy rain (total 54mm), heaviest during Wed morning. Warm (max 27°C on Tue afternoon, min 23°C on Wed night). Wind will be generally light.

Mon
7
Tuesday
8
Wednesday
9
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
3
3
3
3
3
4
4
3
3
2
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
SE
9
1.7
SE
9
1.6
SE
9
1.4
S
10
1.3
S
10
1.3
S
9
1.5
S
9
1.7
S
9
1.8
S
9
2.2
SSE
9
2.3
SSE
9
2.5
SSE
9
2.5
SSE
9
2.5
SSE
9
2.5
SSE
9
2.5
SSE
9
2.3
SE
8
2
SE
8
Wave Graph
Metric surfscale
Energy kJ
493
439
399
354
299
282
375
508
568
848
898
1074
1126
926
1034
976
733
540
Wind (km/h)
5
W
5
N
5
NNE
5
N
5
NNE
0
N
5
N
5
NE
5
NNE
5
NNE
5
NNE
5
ENE
10
NE
5
NE
10
E
10
E
10
ENE
10
NNE
Wind State
glassy
glassy
glassy
off
glassy
glassy
glassy
glassy
glassy
off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
off
High Tide
4:23PM1.60m
3:00AM1.57m
4:57PM1.71m
4:03AM1.71m
5:26PM1.79m
Low Tide
9:49PM1.08m
10:00AM0.23m
10:32PM0.91m
10:46AM0.15m
light rain
part cloud
cloud
cloud
cloud
light rain
light rain
thunderstorm
rain showers
rain showers
rain showers
light rain
light rain
thunderstorm
mod rain
thunderstorm
thunderstorm
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:23
6:22
6:21
 mm
1
2
5
3
4
1
1
1
2
4
6
6
4
3
Temp °C
27
26
26
26
26
26
26
27
26
26
26
26
26
26
27
27
26
23
Feels °C
32
30
30
30
30
31
31
33
31
31
31
31
30
31
32
31
30
25
  • 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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