Niyodo Rivermouth Surf Break

Niyodo Rivermouth 48 hour detailed Surf Forecast

Lat Long: 33.54° N 133.69° E

Issued: 8 am 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's Niyodo Rivermouth sea temperature is
23.7° C

Normal for this time of year

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 (18 Jun):

  • Morning surf: Morning surf (18 Jun, local time) - 3.5ft (1.1m), 8s period with SSW swell.
  • Afternoon surf: Afternoon surf (18 Jun, local time) - 3ft (0.9m), 7s period with SSW swell.
  • Evening surf: Evening surf (18 Jun, local time) - 2.5ft (0.8m), 7s period with SSW swell.

The current surf forecast for Niyodo Rivermouth at 12PM is: 1.0m 8s primary swell from a South-southwest direction and 0.6m 6s secondary swell from a East direction (forecast issued at 08:00am June 18). The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (18 Jun)3.5ft (1.1m)8s
Afternoon (18 Jun)3ft (0.9m)7s
Evening (18 Jun)2.5ft (0.8m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 57mm), heaviest during Sat afternoon. Warm (max 25°C on Thu morning, min 22°C on Thu night). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sun
21
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
12 AM
3 AM
Rating
(10 max)
2
1
1
0
1
1
1
1
1
1
0
1
1
1
0
1
1
0
0
0
0
1
2
4
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)
1.3
SSW
8
1.1
SSW
8
1
SSW
8
0.9
SSW
7
0.8
SSW
7
0.8
SSW
7
1
SSW
7
0.9
SSW
7
1
SSW
7
1
SSW
7
0.9
SSW
7
0.8
SSW
6
0.7
SSW
6
0.7
SSW
6
0.4
SE
10
0.8
SSW
6
0.4
SE
10
1.3
SSW
6
1.8
SSW
6
2.3
SSW
7
2.5
SW
8
2.4
SSW
8
2.3
SSW
8
2.3
SW
8
Wave Graph
Metric surfscale
Energy kJ
223
147
120
97
71
69
117
91
111
99
68
51
37
35
35
39
35
119
254
472
703
680
654
699
Wind (km/h)
0
NE
5
SSE
5
S
10
S
5
S
0
NW
5
N
5
NNE
5
NNE
5
S
5
SSE
5
SW
5
SW
5
SW
5
SW
5
SSW
5
SE
10
SE
20
SSW
20
SSW
20
SSW
10
SSW
10
SW
5
W
Wind State
glassy
glassy
glassy
on
glassy
glassy
glassy
glassy
glassy
glassy
on
glassy
glassy
glassy
cross-on
glassy
glassy
cross-on
on
cross-on
cross-on
cross-on
cross-on
glassy
High Tide
7:23AM1.81m
9:15PM1.74m
8:15AM1.72m
10:00PM1.67m
9:11AM1.61m
10:44PM1.61m
Low Tide
2:20PM0.03m
2:43AM0.94m
3:07PM0.19m
3:37AM0.91m
3:55PM0.38m
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
mod rain
mod rain
light rain
light rain
mod rain
heavy rain
mod rain
thunderstorm
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
4:54
4:54
4:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:16
7:16
7:16
7:17
 mm
5
10
6
3
1
6
16
7
2
1
Temp °C
22
25
25
25
24
23
22
22
23
25
25
24
24
22
23
23
23
24
24
24
24
24
24
24
Feels °C
25
28
28
28
28
27
25
25
26
28
28
28
28
26
27
27
28
28
26
26
26
27
28
29
Swell 1
Height (m)
Direction
Period (s)
1.3
SSW
8
1.1
SSW
8
1
SSW
8
0.9
SSW
7
0.8
SSW
7
0.8
SSW
7
1
SSW
7
0.9
SSW
7
1
SSW
7
1
SSW
7
0.9
SSW
7
0.8
SSW
6
0.7
SSW
6
0.7
SSW
6
0.6
SSW
6
0.6
SSW
5
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
2
SSW
8
Energy kJ
223
147
120
97
71
69
117
91
111
99
68
51
37
35
25
23
35
25
34
34
33
24
23
521
Swell 2
Height (m)
Direction
Period (s)
1
E
6
0.7
E
6
0.6
E
6
0.5
E
6
0.4
ESE
6
0.3
SE
10
0.3
SE
10
0.3
ESE
6
0.3
ESE
6
0.3
SE
9
0.3
SE
9
0.4
SE
9
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.1
E
8
0.1
SE
13
0.1
SE
13
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.4
SE
10
Energy kJ
81
36
24
18
12
15
15
8
8
13
14
23
23
24
35
35
1
7
7
6
6
6
32
Swell 3
Height (m)
Direction
Period (s)
0.2
SSE
10
0.3
SE
10
0.2
E
12
0.2
E
12
0.3
SE
10
0.3
E
6
0.3
ESE
7
0.3
SE
10
0.2
SSE
9
0.2
ESE
11
0.3
SE
5
0.1
SE
14
0.1
S
8
0.1
SE
14
0.1
SE
14
0.1
E
8
0.1
SE
13
0.1
SE
13
0.1
SE
12
Energy kJ
10
15
11
11
15
6
9
15
8
12
4
8
1
7
7
1
7
7
6
Wind waves
Height (m)
Direction
Period (s)
0.3
WSW
3
0.8
SSW
6
0.8
SSW
5
1.3
SSW
6
1.8
SSW
6
2.3
SSW
7
2.5
SW
8
2.4
SSW
8
2.3
SSW
8
2.3
SW
8
Energy kJ
1
39
33
119
254
472
703
680
654
699
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
3
4
Distance (km)
0
0
0
51
0
0
0
0
0
0
51
0
0
0
51
0
0
55
432
432
82
82
51
0
Best forecast wave conditions in Shikoku
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
3
4
Best forecast wave conditions in Japan
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
3
4
Header Global
Rating
(10 max)
5
5
5
9
9
9
5
5
5
5
6
6
6
4
8
4
4
6
4
4
4
5
5
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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