Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 8 pm Monday 16 Feb 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
15.8° C
(Which is 1.6°C colder than average for this time of year)


How big are the waves at Niyodo Rivermouth today?

The current surf forecast for Niyodo Rivermouth at 3AM is: 0.5m 10s primary swell from a East-southeast direction (forecast issued at 08:00pm February 16). An open ocean swell of 0.9m 6s is not directed at the surf break, a second open ocean swell of 1.2m 7s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (17 Feb)1.5ft (0.5m)12s
Afternoon (17 Feb)1.5ft (0.5m)11s
Evening (17 Feb)1.5ft (0.5m)11s

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

Updates in  hr  min  s Forecast update imminent
Mon
16
Tuesday
17
Wednesday
18
Thursday
19
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
0
0
0
0
0
1
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.6
ESE
0.5
ESE
0.4
ESE
0.5
ESE
0.6
E
0.5
E
0.5
E
0.5
E
0.5
E
0.5
E
0.6
E
0.7
E
0.8
E
0.9
E
0.8
E
0.7
E
0.4
E
0.4
E
0.4
E
0.4
E
0.5
E
0.4
E
0.4
E
0.4
E
Period(s) (?)101010101212111111111111101010101010101010111110
Wave
Graph
(?)Metric surfscale
Energy kJ (?)64523852101706563615982108138165123923231333454353530
Wind
(km/h)
5
SE
15
NNW
15
N
15
N
15
N
10
N
5
S
10
S
5
S
5
NNE
10
N
10
N
10
NNW
5
NW
10
WSW
25
WNW
20
NNW
20
N
15
NNW
15
N
15
N
10
NNW
5
SW
10
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassoffoffoffoffoffononglassoffoffoffoffcross-
off
cross-
on
cross-
off
cross-
off
offoffoffoffoffcross-
on
on
High Tide
/ height (m)
5:18PM
1.77
6:33AM
1.79
5:55PM
1.85
6:57AM
1.84
6:31PM
1.90
7:20AM
1.87
Low Tide
/ height (m)
11:57PM
0.12
12:11PM
0.74
12:28AM
0.10
12:41PM
0.62
12:57AM
0.13
1:12PM
0.52
Mon
16
Tuesday
17
Wednesday
18
Thursday
19
Sunrise-----6:48-------6:47-------6:46--
Sunset-------5:50-------5:51-------5:52
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
Rain (mm)
------------------------
Temp. °C1210864610109775581213107531489
Feels °C (?)10631-12657431148641-1-2-4-144
  • 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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