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 (1.0m), 12s period with E swell.
The current surf forecast for Niyodo Rivermouth at 4AM is: 1.3m 13s primary swell from a East direction and 1.2m 11s secondary swell from a South direction (forecast issued at 08:00pm August 09). The wind direction is predicted to be glassy and the swell rating is 4.
| 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 (1.0m) | 12s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Mon morning, min 22°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | ||||||||||||||||
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) | SSW 12 | E 13 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | S 10 | SSW 10 | S 10 | S 10 | SSW 10 | SSW 10 | SSW 10 |
Wave Graph  | ||||||||||||||||||
 kJ | 729 | 683 | 673 | 572 | 555 | 444 | 423 | 350 | 347 | 287 | 278 | 308 | 318 | 302 | 296 | 265 | 265 | 265 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | glassy | glassy | on | on | glassy | glassy | glassy | off | off | glassy | on | on | on | off |
High Tide | 4:31PM1.57m | 2:49AM1.60m | 5:17PM1.70m | 3:58AM1.71m | 5:54PM1.79m | |||||||||||||
Low Tide | 9:40PM1.16m | 10:06AM0.16m | 10:38PM1.05m | 10:58AM0.04m | ||||||||||||||
 |  |  | |  | | | |  |  | | | | | | | | | |
 | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — |
 | 6:58 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:55 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 26 | 26 | 25 | 25 | 27 | 29 | 28 | 27 | 26 | 25 | 25 | 24 | 28 | 29 | 29 | 27 | 24 |
Feels °C | 33 | 31 | 31 | 29 | 29 | 31 | 32 | 32 | 32 | 31 | 29 | 28 | 27 | 31 | 30 | 31 | 30 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 11 | S 11 | E 13 | E 13 | SSW 10 | S 10 | E 12 | S 10 | S 10 | S 10 | S 10 | SSW 10 | S 10 | S 10 | SSW 10 | SSW 10 | SSW 10 |
| kJ | 729 | 657 | 617 | 572 | 555 | 363 | 346 | 350 | 234 | 220 | 216 | 308 | 318 | 302 | 296 | 265 | 265 | 265 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | S 11 | 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 |
| kJ | 683 | 683 | 673 | 282 | 294 | 444 | 423 | 237 | 347 | 287 | 278 | 273 | 214 | 203 | 152 | 191 | 224 | 175 |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 7 | ESE 15 | SSW 11 | 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 | SE 13 |
| kJ | 46 | 23 | 21 | 242 | 149 | 8 | 33 | 119 | 73 | 71 | 69 | 29 | 28 | 27 | 27 | 27 | 27 | 27 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 5 | — | SE 3 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 10 | — | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 64 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 61 | 61 | 55 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
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