Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Niyodo Rivermouth surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 2 pm Tuesday 17 Mar 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
16.5° C
 (Which is 1.1°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 7PM is: 1.0m 13s primary swell from a East direction (forecast issued at 02:00pm March 17). The wind direction is predicted to be glassy and the swell rating is 2.

Time (JST) & DateWave HeightWave Period
Morning (17 Mar)--
Afternoon (17 Mar)3.5ft (1.0m)13s
Evening (17 Mar)3ft (0.9m)13s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM
Rating
(10 max)
1
0
2
2
2
1
1
1
1
1
1
1
2
3
2
2
1
1
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
E
1
E
1
E
0.9
E
0.9
E
0.8
E
0.8
E
0.8
E
0.7
E
0.6
E
0.5
E
0.5
E
1.5
SSW
2.1
SW
1.7
SSW
1.3
SSW
1.1
SW
0.9
SSW
0.8
SSW
0.5
SSW
0.5
S
0.4
SSW
0.4
SSW
0.3
S
Period(s) (?)131313131212121212121212677777776666
Wave
Graph
(?)Metric surfscale
Energy kJ (?)40732631625624819018718413810271711644042741551127553252012116
Wind
(km/h)
10
SSW
10
SSW
5
SSE
5
E
5
ENE
5
NNE
5
ENE
5
E
5
ENE
5
NNW
5
NNE
5
E
0
WNW
10
NW
15
WNW
15
NNW
15
NNW
15
N
15
NNW
15
NNW
15
NNW
15
NNW
15
N
15
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononglassglasscross-
off		cross-
off		glassglassglassoffglassglassglasscross-
off		cross-
off		offoffoffoffoffoffoffoffoff
High Tide
/ height (m)
5:02PM
1.78
5:50AM
1.82
5:40PM
1.88
6:14AM
1.88
6:19PM
1.94
6:38AM
1.91
Low Tide
/ height (m)
11:27PM
0.22
11:43AM
0.54
11:59PM
0.22
12:14PM
0.38
12:30AM
0.28
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Sunrise-------6:13-------6:11-------6:09
Sunset--6:13-------6:14-------6:15-----
cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
--------242122----------
Temp. °C141413131211111312121313141414141617141198711
Feels °C (?)111112121191012111113131513111112121075426
  • 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

Latest Updates

Surf-Forecast Premium Launches 16-day Forecast and New, Improved Modelling
Ben Mondy

Surf-Forecast Premium Launches 16-day Forecast and New, Improved Modelling

Get 16% off your subscription with code 16DAYS—available for 16 days only, until March 25, 2026. Surf-Forecast Premium just got better. All paid subscribers will now see a full 16-day forecast, surf reports and wind and tide data for over 7,000 of the world's best surf spots. Premium members will also have access to a new high-resolution forecast model, which enhances our current forecasts by making them quicker and more accurate. That’s more lead time. More confidence. More chances to score g

Save Up to 20% on SIXT Rental Cars Worldwide – Exclusive Surf-Forecast Deal
travel
Surf Forecast

Save Up to 20% on SIXT Rental Cars Worldwide – Exclusive Surf-Forecast Deal

Surf road trips just got even better. Surf-Forecast users can now save up to 20% on SIXT rental cars worldwide during the promotional period until March 31, 2026. Whether you’re planning a legendary California road trip, chasing waves along Europe’s coasts, or exploring remote surf destinations, this exclusive SIXT offer helps you travel smarter and cheaper. And if you want some inspiration on where to go, check out our article Five Iconic Surf Road Trips. Click and get your SIXT discount

Read more

Read more

Discover more articles and updates in the Greenroom.

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.

View detailed surf forecast for Niyodo Rivermouth at:
surf-forecast.com

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest