Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (11 Aug):
- Morning surf: Morning surf (11 Aug, local time) - 4ft (1.2m), 10s period with S swell.
- Afternoon surf: Afternoon surf (11 Aug, local time) - 3.5ft (1.1m), 10s period with SSW swell.
- Evening surf: Evening surf (11 Aug, local time) - 3.5ft (1.1m), 10s period with SSW swell.
The current surf forecast for Niyodo Rivermouth at 11AM is: 1.2m 10s primary swell from a South-southwest direction and 0.9m 11s secondary swell from a East direction (forecast issued at 08:00am August 11). An open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Aug) | 4ft (1.2m) | 10s |
| Afternoon (11 Aug) | 3.5ft (1.1m) | 10s |
| Evening (11 Aug) | 3.5ft (1.1m) | 10s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Thu afternoon. Warm (max 30°C on Tue morning, min 22°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||||||||
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) | S 10 | S 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | S 10 | S 9 | S 10 | S 9 | SSW 9 | S 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 308 | 302 | 306 | 265 | 265 | 265 | 265 | 270 | 265 | 191 | 120 | 108 | 115 | 110 | 144 | 110 | 144 | 141 | 138 | 138 | 110 | 135 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | cross-on | cross-on | cross-on | off | off | off | cross-off | cross-off | on | on | on | glassy | glassy | cross-off | cross-off | cross-on | cross-on | on | cross-on | glassy |
High Tide | 3:58AM1.71m | 5:54PM1.79m | 4:53AM1.82m | 6:28PM1.85m | 5:42AM1.90m | 6:59PM1.87m | ||||||||||||||||
Low Tide | 10:58AM0.04m | 11:23PM0.92m | 11:43AM-0.03m | 00:02AM0.79m | 12:23PM-0.02m | |||||||||||||||||
 | | | | |  | | |  | | | |  |  | | | | | |  | |  | |
 | 5:22 | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — |
 | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:53 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — | — | 1 | 2 | 1 |
Temp °C | 24 | 28 | 30 | 29 | 27 | 23 | 22 | 22 | 23 | 27 | 28 | 28 | 26 | 25 | 24 | 24 | 24 | 26 | 28 | 27 | 26 | 25 |
Feels °C | 27 | 31 | 32 | 30 | 30 | 22 | 22 | 23 | 24 | 29 | 29 | 30 | 29 | 29 | 28 | 27 | 27 | 29 | 29 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | S 10 | S 9 | S 10 | S 9 | SSW 9 | S 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 |
| kJ | 308 | 302 | 306 | 265 | 265 | 265 | 265 | 270 | 265 | 191 | 120 | 108 | 115 | 110 | 144 | 110 | 144 | 141 | 138 | 138 | 110 | 135 |
Swell 2 Height (m) Direction Period (s) | E 12 | E 11 | E 11 | E 11 | E 11 | E 10 | E 10 | E 12 | E 11 | E 11 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | E 10 | SSW 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 |
| kJ | 214 | 203 | 192 | 189 | 188 | 177 | 174 | 171 | 121 | 86 | 90 | 68 | 40 | 40 | 32 | 54 | 31 | 30 | 30 | 29 | 28 | 27 |
Swell 3 Height (m) Direction Period (s) | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | E 13 | SE 13 | SE 13 | SE 13 | S 10 | E 11 | E 11 | E 11 | E 11 | SSW 10 | E 10 | SE 12 | SE 12 | SE 12 | SE 12 | SSW 5 | SE 12 |
| kJ | 28 | 27 | 27 | 27 | 27 | 29 | 27 | 27 | 27 | 31 | 58 | 56 | 56 | 35 | 20 | 31 | 23 | 23 | 22 | 22 | 7 | 22 |
Wind waves Height (m) Direction Period (s) | NE 5 | NE 5 | NE 6 | — | — | — | — | — | — | WNW 2 | — | — | — | — | — | — | — | E 4 | ESE 4 | SSW 5 | — | — |
| kJ | 20 | 34 | 47 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 1 | 1 | 5 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 61 | 61 | 51 | 0 | 0 | 0 | 0 | 0 | 82 | 535 | 29 | 0 | 0 | 0 | 0 | 0 | 55 | 82 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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