Niyodo Rivermouth Surf Break

Lat Long: 33.54° N 133.69° E

Niyodo Rivermouth 48 hour detailed Surf Forecast

Issued: 2 pm 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Niyodo Rivermouth sea temperature is
28.4°C
1.8° 

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 (17 Sep):

  • Afternoon surf: Afternoon surf (17 Sep, local time) - 3.5ft (1.1m), 9s period with E swell.
  • Evening surf: Evening surf (17 Sep, local time) - 5ft (1.6m), 8s period with ESE swell.

The current surf forecast for Niyodo Rivermouth at 10PM is: 1.6m 8s primary swell from a East-southeast direction and 0.2m 12s secondary swell from a East direction (forecast issued at 02:00pm September 17). The wind direction is predicted to be glassy and the swell rating is 2.

Time (JST) & DateWave HeightWave Period
Morning (17 Sep)--
Afternoon (17 Sep)3.5ft (1.1m)9s
Evening (17 Sep)5ft (1.6m)8s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sat afternoon. Warm (max 29°C on Sun morning, min 22°C on Fri night). Wind will be generally light.

Thu
17
Friday
18
Saturday
19
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)
0
2
1
2
2
3
3
3
2
2
2
2
3
3
4
4
3
!
!
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
ESE
9
1.1
E
9
1.4
E
5
1.6
ESE
8
1.8
ESE
8
1.9
ESE
8
2.1
E
8
2.2
E
9
2.3
E
9
2.4
ESE
9
2.3
ESE
9
2.2
ESE
10
2.1
E
10
2
E
10
2.5
E
10
2
E
10
2.5
ESE
13
3.5
ESE
15
3.5
ESE
14
3.5
ESE
13
Wave Graph
Metric surfscale
Energy kJ
99
186
102
300
416
497
647
777
866
900
863
825
826
783
1184
783
2024
4529
4824
4013
Wind (km/h)
10
S
5
SSW
5
WNW
5
ENE
5
ENE
5
NNE
5
NNE
0
S
5
S
5
SE
10
ESE
5
E
5
NE
5
NNE
5
N
0
NNW
10
SSW
5
S
5
WNW
10
N
Wind State
on
glassy
glassy
glassy
glassy
cross-off
glassy
glassy
on
cross-on
cross-on
cross
glassy
glassy
off
glassy
on
on
glassy
off
High Tide
8:30PM1.59m
10:36AM1.27m
8:52PM1.49m
Low Tide
2:36PM0.99m
3:41AM0.56m
2:51PM1.11m
4:47AM0.66m
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
cloud
part cloud
part cloud
cloud
clear
clear
clear
part cloud
clear
clear
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:09
6:07
6:07
 mm
1
1
Temp °C
27
27
26
24
24
23
23
25
26
26
25
24
24
23
22
26
28
27
26
24
Feels °C
29
30
29
27
27
26
26
29
28
29
27
27
27
26
24
29
30
29
30
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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Niyodo Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Nearest locationNearest