Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (25 Aug):
- Morning surf: Morning surf (25 Aug, local time) - 10ft (3.0m), 14s period with SSE swell.
- Afternoon surf: Afternoon surf (25 Aug, local time) - 11ft (3.5m), 14s period with SSE swell.
- Evening surf: Evening surf (25 Aug, local time) - 10ft (3.0m), 13s period with SSE swell.
The current surf forecast for Niyodo Rivermouth at 12PM is: 3.0m 14s primary swell from a South-southeast direction and 1.8m 16s secondary swell from a South direction (forecast issued at 08:00am August 25). The wind direction is predicted to be onshore and the swell rating is 11.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Aug) | 10ft (3.0m) | 14s |
| Afternoon (25 Aug) | 11ft (3.5m) | 14s |
| Evening (25 Aug) | 10ft (3.0m) | 13s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Wed morning. Warm (max 30°C on Tue morning, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||||||||
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) | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | S 12 | S 12 | S 12 | S 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSE 10 | SSE 9 | SSE 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 3835 | 3052 | 3200 | 4247 | 3521 | 2853 | 2422 | 1898 | 1480 | 1207 | 1455 | 1117 | 913 | 759 | 608 | 586 | 478 | 331 | 312 | 231 | 193 | 188 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | on | on | glassy | glassy | off | glassy | glassy | on | on | on | glassy | glassy | glassy | glassy | glassy | glassy | on | on | glassy | glassy |
High Tide | 3:40AM1.52m | 5:30PM1.61m | 4:25AM1.63m | 5:51PM1.69m | 5:03AM1.74m | 6:12PM1.76m | ||||||||||||||||
Low Tide | 10:37AM0.35m | 10:58PM0.96m | 11:10AM0.25m | 11:25PM0.84m | 11:40AM0.20m | |||||||||||||||||
 | | | | |  | | | | |  | |  |  |  | | | |  | | | | |
 | 5:33 | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — |
 | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 28 | 30 | 30 | 28 | 26 | 26 | 26 | 26 | 29 | 30 | 30 | 28 | 27 | 27 | 26 | 26 | 28 | 29 | 30 | 28 | 27 |
Feels °C | 30 | 33 | 33 | 34 | 33 | 31 | 30 | 30 | 30 | 34 | 34 | 34 | 33 | 33 | 33 | 32 | 31 | 33 | 32 | 34 | 33 | 32 |
Swell 1 Height (m) Direction Period (s) | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | S 12 | S 12 | S 12 | S 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSE 9 | SSE 9 |
| kJ | 3835 | 3052 | 3200 | 4247 | 3521 | 2853 | 2422 | 1898 | 1480 | 1207 | 1455 | 1117 | 913 | 759 | 608 | 586 | 478 | 331 | 312 | 193 | 193 | 188 |
Swell 2 Height (m) Direction Period (s) | SSE 18 | SSE 17 | S 16 | E 14 | E 14 | E 14 | E 14 | E 13 | SE 10 | SE 10 | E 13 | SE 9 | SE 9 | SE 9 | SSE 9 | SE 8 | SE 8 | SE 9 | SE 9 | SSE 10 | SSW 9 | SSW 9 |
| kJ | 1642 | 2086 | 1778 | 66 | 103 | 100 | 91 | 88 | 167 | 231 | 83 | 241 | 237 | 206 | 202 | 162 | 162 | 182 | 148 | 231 | 151 | 141 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 15 | E 15 | E 11 | E 11 | — | — | E 13 | E 13 | E 13 | SE 18 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 |
| kJ | 98 | 109 | 67 | 36 | 37 | — | — | 87 | 85 | 85 | 12 | 83 | 82 | 79 | 74 | 72 | 44 | 44 | 44 | 42 | 42 | 39 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 9 | 9 | 51 | 9 | 9 | 9 | 9 | 0 | 0 | 51 | 51 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 58 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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