Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (17 Oct):
- Morning surf: Morning surf (17 Oct, local time) - 1.5ft (0.4m), 8s period with ESE swell.
- Afternoon surf: Afternoon surf (17 Oct, local time) - 2ft (0.6m), 6s period with E swell.
- Evening surf: Evening surf (17 Oct, local time) - 1ft (0.3m), 8s period with ESE swell.
The current surf forecast for Niyodo Rivermouth at 5AM is: 0.4m 8s primary swell from a East-southeast direction and 0.3m 9s secondary swell from a Southeast direction (forecast issued at 02:00am October 17). The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Oct) | 1.5ft (0.4m) | 8s |
| Afternoon (17 Oct) | 2ft (0.6m) | 6s |
| Evening (17 Oct) | 1ft (0.3m) | 8s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Sun morning. Warm (max 25°C on Sat morning, min 19°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 17 | Sunday 18 | Monday 19 | ||||||||||||||||||||||
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 | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | E 9 | ESE 8 | E 8 | ESE 8 | ESE 9 | E 6 | E 4 | ESE 8 | E 7 | E 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 38 | 24 | 23 | 24 | 15 | 28 | 40 | 14 | 92 | 138 | 261 | 428 | 417 | 428 | 451 | 432 | 402 | 354 | 271 | 264 | 255 | 268 | 311 | 275 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | glassy | on | cross-off | cross-off | off | off | glassy | cross | cross-on | cross-on | cross-on | cross | cross | glassy | cross-off | glassy | glassy | cross-on | glassy | glassy |
High Tide | 10:12AM1.33m | 8:21PM1.48m | 12:03PM1.28m | 9:04PM1.36m | 2:10PM1.33m | |||||||||||||||||||
Low Tide | 3:06AM0.50m | 2:43PM1.13m | 4:03AM0.62m | 3:43PM1.22m | 5:36AM0.70m | 7:22PM1.21m | ||||||||||||||||||
 | | |  |  |  | | | |  |  |  | | |  | | | | | | | | | | |
 | — | — | 6:09 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — |
 | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:29 | — | — | — | — | — | — | — | 5:28 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — |
Temp °C | 19 | 18 | 17 | 21 | 25 | 24 | 22 | 20 | 19 | 19 | 20 | 21 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 25 | 25 | 23 | 22 |
Feels °C | 17 | 16 | 15 | 20 | 25 | 24 | 22 | 20 | 19 | 18 | 20 | 22 | 23 | 22 | 22 | 23 | 24 | 24 | 24 | 26 | 28 | 27 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | E 9 | ESE 8 | E 8 | ESE 8 | ENE 6 | ESE 9 | SE 8 | ESE 8 | SE 8 | SE 8 | E 13 | E 13 | — | — | — | — | — | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 9 |
| kJ | 38 | 24 | 23 | 24 | 12 | 15 | 10 | 14 | 9 | 2 | 3 | 4 | — | — | — | — | — | 354 | 271 | 264 | 255 | 268 | 311 | 275 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SSE 9 | SE 9 | SE 8 | ESE 9 | SE 8 | — | SE 8 | — | SE 12 | — | — | — | — | — | — | — | — | — | — | — | SE 16 | SE 17 | SSE 16 |
| kJ | 3 | 8 | 12 | 11 | 15 | 10 | — | 9 | — | 6 | — | — | — | — | — | — | — | — | — | — | — | 11 | 11 | 25 |
Swell 3 Height (m) Direction Period (s) | E 10 | SE 9 | SE 9 | ENE 6 | SE 8 | — | — | — | E 13 | E 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 3 | 12 | 7 | 11 | — | — | — | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | ENE 6 | E 6 | E 4 | E 5 | E 7 | E 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 120 | 28 | 40 | 34 | 92 | 138 | 261 | 428 | 417 | 428 | 451 | 432 | 402 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 229 | 229 | 229 | 29 | 55 | 0 | 2579 | 539 | 330 | 0 | 0 | 0 | 0 | 29 | 581 | 667 | 29 | 29 | 29 | 0 | 0 | 0 | 0 | 9 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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