Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 8 pm Monday 01 Jun 2026 JST
Forecast update in hr  min  s Forecast update imminent
Niyodo Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Niyodo Rivermouth sea temperature is
23.7° C
(Which is 1.6°C warmer than normal for this time of year)

How big are the waves at Niyodo Rivermouth today (01 Jun):

  • Evening surf: Evening surf (01 Jun, local time) - 7.5ft (2.3m), 14s period with S swell.

The current surf forecast for Niyodo Rivermouth at 11PM is: 2.3m 14s primary swell from a South direction and 0.5m 10s secondary swell from a East-southeast direction (forecast issued at 08:00pm June 01). The wind direction is predicted to be glassy and the swell rating is 4.

Time (JST) & DateWave HeightWave Period
Morning (01 Jun)--
Afternoon (01 Jun)--
Evening (01 Jun)7.5ft (2.3m)14s

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 136mm), heaviest during Tue night. Warm (max 26°C on Wed afternoon, min 19°C on Mon night). Winds decreasing (strong winds from the E on Tue night, calm by Thu morning).

Mon
1
Tuesday
2
Wednesday
3
Thursday
4
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
6 AM
9 AM
12 PM
3 PM
Rating
(10 max)
3
4
4
4
4
1
0
1
0
0
!
!
!
!
4
3
3
2
2
2
2
1
0
1
Swell
Height Map
Height MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
2.2
S
14
2.3
S
14
2.3
S
14
2.3
S
14
2.3
S
13
2.2
SSW
13
2.4
SSW
14
2.4
SSW
14
2.5
SSW
14
5.5
ESE
9
5.5
SSW
15
6
S
14
4.5
SSW
13
3.5
SSW
13
2.2
SSW
11
1.6
SSW
11
1.5
SE
9
1.6
S
9
1.1
SSW
9
1.2
S
8
1.1
S
8
1
S
8
0.9
S
8
0.8
S
7
Wave Graph
Metric surfscale
Energy kJ
1868
2216
2155
2006
1838
1605
2221
2234
2791
4741
13128
13973
7101
3642
1249
575
367
417
184
199
156
122
92
69
Wind (km/h)
10
SE
5
NNE
5
N
5
NE
10
NE
20
ESE
25
SE
25
ESE
40
E
45
E
35
NE
40
NNW
30
NNW
20
WNW
15
NNW
15
NNW
10
NNW
15
N
15
N
10
N
5
N
5
NNW
5
SW
5
S
cross-on
glassy
glassy
cross-off
cross-off
cross-on
cross-on
cross
cross
cross
cross-off
off
off
cross-off
off
cross-off
cross-off
off
off
off
off
glassy
cross-on
glassy
High Tide
7:15PM1.68m
6:07AM1.69m
7:51PM1.65m
6:40AM1.68m
8:29PM1.61m
7:15AM1.64m
Low Tide
00:38AM0.97m
12:59PM0.19m
1:11AM0.98m
1:35PM0.23m
1:46AM1.00m
2:12PM0.29m
part cloud
cloud
cloud
light rain
light rain
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
rain showers
rain showers
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:54
4:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:08
7:09
7:09
7:10
4
4
13
12
19
25
22
29
6
1
Temp °C
22
20
20
19
21
22
22
22
23
23
22
22
22
23
25
25
26
21
19
19
20
23
23
23
24
22
22
20
23
23
21
22
20
19
19
16
19
23
25
25
27
21
18
18
20
24
24
25
Swell 1
Height (m)
Direction
Period (s)
2.2
S
14
2.3
S
14
2.3
S
14
2.3
S
14
2.3
S
13
2.2
SSW
13
2.4
SSW
14
2.4
SSW
14
2.5
SSW
14
3.5
SSW
14
5.5
SSW
15
6
S
14
4.5
SSW
13
3.5
SSW
13
2.2
SSW
11
1.6
SSW
11
1.5
SE
9
1.6
S
9
1.1
SSW
9
1.2
S
8
1.1
S
8
1
S
8
0.9
S
8
0.8
S
7
Energy kJ
1868
2216
2155
2006
1838
1605
2221
2234
2791
4518
13128
13973
7101
3642
1249
575
367
417
184
199
156
122
92
69
Swell 2
Height (m)
Direction
Period (s)
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.4
ESE
10
1.8
SSE
11
4.5
ESE
11
3.5
ESE
11
2.5
SE
10
2
SE
10
1.6
SE
10
1.3
SSW
10
0.6
E
10
0.9
SSE
8
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
9
0.4
ESE
9
Energy kJ
59
58
58
58
32
821
4695
2537
1446
769
450
325
70
108
31
31
30
29
29
Swell 3
Height (m)
Direction
Period (s)
0.3
SE
12
0.3
SE
12
0.3
SE
12
0.9
NE
7
0.3
NE
7
0.8
E
10
0.1
SE
15
0.1
SE
15
0.5
E
10
0.2
ESE
12
0.3
SE
11
0.3
SE
11
0.3
SE
11
0.1
SE
11
Energy kJ
21
22
22
86
8
125
8
8
49
14
20
20
19
5
Wind waves
Height (m)
Direction
Period (s)
0.4
E
10
1.5
SE
6
1.9
SE
6
2.5
ESE
7
4
ESE
8
5.5
ESE
9
6
ESE
10
1.4
NNW
5
0.9
WNW
4
0.8
WNW
4
0.6
NW
5
0.4
NW
4
0.4
NW
2
0.3
NNW
3
0.2
NNW
3
Energy kJ
30
133
287
745
1816
4741
8225
97
35
24
17
3
2
1
1
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
2
4
4
2
1
2
4
3
5
4
2
3
2
2
2
2
1
1
1
Distance (km)
29
0
0
0
0
380
432
432
645
535
539
224
224
63
0
51
0
0
0
0
0
0
55
0
Best forecast wave conditions in Shikoku
Rating
(10 max)
4
4
4
4
4
5
4
4
3
2
2
2
2
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
4
4
4
4
4
4
4
3
2
2
5
4
5
4
4
3
2
2
2
2
1
1
1
Header Global
Rating
(10 max)
5
4
7
9
5
5
4
4
4
6
4
5
5
5
5
4
4
5
5
5
5
5
5
5
  • 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

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
Nearest locationNearest
Nearest locationNearest