Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (10 Aug):
- Morning surf: Morning surf (10 Aug, local time) - 4ft (1.2m), 12s period with E swell.
- Afternoon surf: Afternoon surf (10 Aug, local time) - 3.5ft (1.1m), 12s period with E swell.
- Evening surf: Evening surf (10 Aug, local time) - 3.5ft (1.1m), 12s period with E swell.
The current surf forecast for Niyodo Rivermouth at 2PM is: 1.1m 12s primary swell from a East direction and 1.1m 10s secondary swell from a South direction (forecast issued at 08:00am August 10). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Aug) | 4ft (1.2m) | 12s |
| Afternoon (10 Aug) | 3.5ft (1.1m) | 12s |
| Evening (10 Aug) | 3.5ft (1.1m) | 12s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Wed night. Warm (max 29°C on Mon morning, min 22°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | S 10 | S 10 | S 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | S 10 | S 10 | S 10 | S 10 | S 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 555 | 444 | 423 | 350 | 347 | 347 | 278 | 308 | 308 | 302 | 306 | 265 | 265 | 265 | 265 | 270 | 265 | 121 | 120 | 116 | 115 | 110 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | on | on | glassy | glassy | glassy | off | off | glassy | cross-on | on | cross-on | off | off | off | off | cross | on | on | on | cross-on |
High Tide | 5:17PM1.70m | 3:58AM1.71m | 5:54PM1.79m | 4:53AM1.82m | 6:28PM1.85m | |||||||||||||||||
Low Tide | 10:06AM0.16m | 10:38PM1.05m | 10:58AM0.04m | 11:23PM0.92m | 11:43AM-0.03m | |||||||||||||||||
 | | | | |  | | |  | | | | | | | | | | | | |  | |
 | 5:22 | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — |
 | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:54 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 25 | 27 | 29 | 29 | 28 | 26 | 25 | 24 | 23 | 27 | 29 | 28 | 27 | 24 | 22 | 22 | 23 | 27 | 28 | 27 | 26 | 25 |
Feels °C | 28 | 31 | 32 | 32 | 33 | 31 | 29 | 27 | 25 | 29 | 30 | 30 | 30 | 25 | 22 | 23 | 24 | 29 | 29 | 29 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | E 13 | SSW 10 | S 10 | E 12 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | S 10 | S 10 | S 10 | S 10 | S 9 |
| kJ | 555 | 363 | 346 | 350 | 234 | 220 | 216 | 308 | 308 | 302 | 306 | 265 | 265 | 265 | 265 | 270 | 265 | 120 | 120 | 116 | 115 | 110 |
Swell 2 Height (m) Direction Period (s) | S 10 | E 12 | E 12 | S 10 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | E 11 | E 10 | E 10 | E 12 | E 11 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 |
| kJ | 294 | 444 | 423 | 237 | 347 | 347 | 278 | 273 | 214 | 203 | 152 | 189 | 231 | 175 | 174 | 171 | 163 | 116 | 90 | 88 | 40 | 40 |
Swell 3 Height (m) Direction Period (s) | SSW 11 | SE 7 | SE 14 | SW 11 | SSW 10 | SSW 10 | SSW 10 | SE 14 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | E 13 | SE 13 | SE 13 | SE 13 | E 11 | E 11 | E 11 | E 11 | E 11 |
| kJ | 149 | 8 | 33 | 119 | 73 | 71 | 69 | 29 | 28 | 27 | 27 | 27 | 27 | 29 | 27 | 27 | 27 | 121 | 88 | 59 | 57 | 36 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | ENE 4 | NE 5 | — | ENE 5 | — | — | — | — | — | — | — | E 2 | ESE 3 | E 3 |
| kJ | — | — | — | — | — | — | — | — | 2 | 18 | — | 21 | — | — | — | — | — | — | — | 1 | 3 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 0 | 0 | 64 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 297 | 344 | 51 | 0 | 0 | 0 | 0 | 51 | 51 | 82 | 82 | 29 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
Header Global | ||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
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