
Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (08 Aug):
- Afternoon surf: Afternoon surf (08 Aug, local time) - 6ft (1.8m), 11s period with SSW swell.
- Evening surf: Evening surf (08 Aug, local time) - 5.5ft (1.7m), 11s period with SSW swell.
The current surf forecast for Niyodo Rivermouth at 6PM is: 1.8m 11s primary swell from a South-southwest direction and 1.4m 8s secondary swell from a Southeast direction (forecast issued at 02:00pm August 08). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Aug) | - | - |
| Afternoon (08 Aug) | 6ft (1.8m) | 11s |
| Evening (08 Aug) | 5.5ft (1.7m) | 11s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sun afternoon. Warm (max 30°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | ||||||||||||||||||
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) | S 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | E 13 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 |
Wave Graph | ||||||||||||||||||||
1006 | 807 | 807 | 679 | 679 | 814 | 872 | 857 | 757 | 729 | 683 | 683 | 673 | 572 | 555 | 444 | 423 | 350 | 342 | 282 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | glassy | glassy | off | glassy | on | on | glassy | glassy | glassy | glassy | glassy | glassy | on | on | glassy | glassy |
High Tide | 3:23PM1.42m | 1:20AM1.53m | 4:31PM1.57m | 2:49AM1.60m | 5:17PM1.70m | |||||||||||||||
Low Tide | 8:01PM1.21m | 9:02AM0.31m | 9:40PM1.16m | 10:06AM0.16m | ||||||||||||||||
— | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | |
— | — | 6:59 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 30 | 30 | 27 | 26 | 25 | 25 | 24 | 28 | 29 | 29 | 28 | 26 | 25 | 25 | 25 | 28 | 29 | 28 | 28 | 26 |
Feels °C | 31 | 31 | 31 | 31 | 29 | 29 | 27 | 31 | 31 | 32 | 32 | 30 | 29 | 29 | 29 | 33 | 32 | 31 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | S 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | E 13 | E 13 | SSW 10 | SSW 10 | E 12 | E 12 | S 10 |
1006 | 807 | 807 | 679 | 679 | 814 | 872 | 857 | 757 | 729 | 648 | 582 | 572 | 572 | 555 | 426 | 363 | 350 | 342 | 220 | |
Swell 2 Height (m) Direction Period (s) | E 15 | ESE 10 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 14 | ESE 13 | E 13 | E 13 | E 13 | E 13 | E 13 | S 11 | S 10 | E 12 | E 12 | S 10 | S 9 | E 12 |
4 | 163 | 286 | 313 | 196 | 165 | 646 | 617 | 694 | 683 | 683 | 683 | 673 | 282 | 300 | 444 | 423 | 237 | 170 | 282 | |
Swell 3 Height (m) Direction Period (s) | SE 16 | SE 17 | E 9 | E 10 | E 10 | E 9 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SSW 11 | SSW 11 | SSE 12 | SE 14 | SSW 10 | SW 10 | SSW 10 |
10 | 11 | 217 | 188 | 231 | 217 | 117 | 99 | 79 | 69 | 64 | 43 | 17 | 242 | 151 | 13 | 33 | 133 | 108 | 72 | |
Wind waves Height (m) Direction Period (s) | ESE 9 | SE 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
666 | 475 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 29 | 82 | 82 | 29 | 0 | 0 | 0 | 0 | 0 | 82 | 82 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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)












