Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 2 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):

  • Afternoon surf: Afternoon surf (01 Jun, local time) - 7ft (2.1m), 14s period with S swell.
  • 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 6PM is: 2.2m 14s primary swell from a South direction and 0.5m 10s secondary swell from a East-southeast direction (forecast issued at 02:00pm June 01). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (01 Jun)--
Afternoon (01 Jun)7ft (2.1m)14s
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 166mm), heaviest during Tue night. Warm (max 26°C on Wed afternoon, min 19°C on Mon night). Winds increasing (calm on Mon night, strong winds from the ENE by Tue night).

Mon
1
Tuesday
2
Wednesday
3
Thu
4
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
6 AM
9 AM
Rating
(10 max)
2
3
3
4
4
4
4
1
0
1
0
0
!
!
!
!
4
3
3
3
2
2
1
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.7
S
13
2.1
S
14
2.2
S
14
2.3
S
14
2.3
S
14
2.3
S
14
2.5
S
13
2.2
SSW
13
2.3
SSW
14
2.3
SSW
14
3
SSW
14
5.5
ESE
10
5
SSW
15
6
S
14
4.5
S
13
3.5
SSW
12
2.3
SSW
11
1.7
SSW
11
1.3
SSW
10
1.6
SSE
9
0.9
SSW
9
1.2
S
8
1
S
8
0.9
S
8
Wave Graph
Metric surfscale
Energy kJ
976
1608
1868
2216
2155
2006
2139
1649
2048
2035
2993
5352
10303
13702
7355
3331
1330
619
307
451
143
199
133
102
Wind (km/h)
15
SSE
10
SSE
5
ESE
5
NNE
5
NNE
5
NNE
10
ENE
20
ESE
25
ESE
25
E
35
E
50
ENE
30
NNE
45
N
30
NW
20
NW
20
NNW
20
NNW
15
NNW
15
NNW
15
N
15
N
10
N
5
NW
on
on
cross-on
glassy
cross-off
cross-off
cross-off
cross-on
cross-on
cross
cross
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
cross-off
off
off
off
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
part cloud
cloud
cloud
cloud
light rain
light rain
light rain
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
rain showers
rain showers
clear
part cloud
clear
clear
clear
clear
cloud
part 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
2
5
5
12
14
16
26
35
45
5
1
Temp °C
24
22
21
21
19
19
20
21
22
22
22
23
22
23
23
24
25
26
25
21
19
19
20
24
25
23
23
23
20
20
22
22
22
21
19
18
20
17
20
24
24
25
24
21
18
18
20
25
Swell 1
Height (m)
Direction
Period (s)
1.7
S
13
2.1
S
14
2.2
S
14
2.3
S
14
2.3
S
14
2.3
S
14
2.5
S
13
2.2
SSW
13
2.3
SSW
14
2.3
SSW
14
3
SSW
14
3
SSW
14
5
SSW
15
6
S
14
4.5
S
13
3.5
SSW
12
2.3
SSW
11
1.7
SSW
11
1.3
SSW
10
1.6
SSE
9
0.9
SSW
9
1.2
S
8
1
S
8
0.9
S
8
Energy kJ
976
1608
1868
2216
2155
2006
2139
1649
2048
2035
2993
4216
10303
13702
7355
3331
1330
619
307
451
143
199
133
102
Swell 2
Height (m)
Direction
Period (s)
1
SSW
16
0.5
E
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.3
S
19
2.3
S
12
5
ESE
11
3.5
ESE
11
3
SE
11
2.1
SE
10
1.6
SE
10
1.2
SE
9
0.1
SE
15
0.9
SSE
9
0.5
E
10
0.4
ESE
10
0.4
ESE
10
Energy kJ
540
53
59
58
58
58
64
1617
5877
3059
1833
916
517
242
8
129
47
31
31
Swell 3
Height (m)
Direction
Period (s)
0.5
E
10
0.6
E
10
0.3
SE
12
0.3
SE
12
1.1
NE
8
1.3
E
10
0.9
E
10
0.7
E
10
0.6
E
10
0.5
E
10
0.1
SE
12
0.2
ESE
11
0.3
SE
11
Energy kJ
54
74
21
22
135
339
162
100
70
48
5
13
20
Wind waves
Height (m)
Direction
Period (s)
0.4
ESE
5
0.5
ESE
10
1.8
SE
6
2.1
SE
6
3
ESE
7
4.5
ESE
8
5.5
ESE
10
6.5
ESE
11
1.1
NNW
4
1.6
NW
6
1
W
4
0.5
NNW
3
0.6
NNW
3
0.4
NW
3
0.3
NW
2
0.3
NNW
3
0.3
N
3
Energy kJ
9
58
224
348
946
2564
5352
9443
50
148
35
6
9
2
1
1
1
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
4
4
2
4
2
4
2
9
4
4
5
4
2
3
3
2
2
1
1
Distance (km)
58
330
29
0
0
0
0
380
432
645
497
539
243
224
233
63
0
51
0
0
0
0
0
0
Best forecast wave conditions in Shikoku
Rating
(10 max)
4
4
4
4
4
4
5
4
4
3
3
2
2
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
4
4
4
4
4
4
4
4
2
4
2
9
5
4
5
4
4
3
3
2
2
1
1
Header Global
Rating
(10 max)
5
5
5
4
5
5
5
5
5
4
5
4
4
5
5
5
4
4
4
4
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

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