Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (04 Sep):
- Morning surf: Morning surf (04 Sep, local time) - 6ft (1.8m), 10s period with S swell.
- Afternoon surf: Afternoon surf (04 Sep, local time) - 5.5ft (1.7m), 10s period with S swell.
- Evening surf: Evening surf (04 Sep, local time) - 5ft (1.5m), 10s period with S swell.
The current surf forecast for Niyodo Rivermouth at 6AM is: 1.8m 10s primary swell from a South direction and 0.5m 10s secondary swell from a East direction (forecast issued at 02:00am September 04). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 3.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Sep) | 6ft (1.8m) | 10s |
| Afternoon (04 Sep) | 5.5ft (1.7m) | 10s |
| Evening (04 Sep) | 5ft (1.5m) | 10s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 98mm), heaviest during Fri afternoon. Warm (max 29°C on Sun morning, min 20°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||||||||||
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) | SSE 10 | SSE 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | SSW 10 | E 7 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | ESE 8 | E 8 | ESE 9 | E 10 | E 10 | E 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 616 | 671 | 627 | 618 | 625 | 533 | 464 | 422 | 263 | 330 | 520 | 463 | 298 | 233 | 187 | 176 | 311 | 471 | 702 | 675 | 1391 | 1895 | 2098 | 4307 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | off | off | off | cross-off | glassy | glassy | glassy | off | off | off | cross-off | glassy | off | off | off | cross-off | off | off | glassy | cross | glassy | off |
High Tide | 9:09PM1.67m | 11:15AM1.35m | 9:51PM1.57m | 1:52PM1.33m | 11:11PM1.47m | 3:38PM1.46m | ||||||||||||||||||
Low Tide | 4:17AM0.45m | 3:53PM1.10m | 5:43AM0.50m | 5:37PM1.25m | 7:35AM0.47m | 8:37PM1.23m | ||||||||||||||||||
 |  |  |  |  | |  |  | | | | | | | | |  | | | |  | | | | |
 | — | 5:39 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:24 | — |
mm | 1 | — | — | 5 | 29 | 40 | 8 | 5 | 5 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | — |
Temp °C | 26 | 25 | 25 | 24 | 22 | 20 | 21 | 20 | 20 | 21 | 22 | 23 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 26 | 29 | 28 | 27 | 25 |
Feels °C | 30 | 29 | 28 | 28 | 21 | 21 | 24 | 23 | 22 | 23 | 24 | 26 | 30 | 30 | 28 | 28 | 28 | 27 | 27 | 30 | 33 | 31 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | SSW 10 | SSW 10 | S 10 | SSW 9 | S 9 | S 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SE 9 | SSW 9 | SSW 9 | SSW 9 | E 11 |
| kJ | 616 | 671 | 627 | 618 | 625 | 533 | 464 | 422 | 263 | 183 | 231 | 220 | 240 | 199 | 137 | 106 | 84 | 82 | 57 | 278 | 31 | 16 | 16 | 2621 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | ENE 6 | E 14 | SSE 8 | SSE 8 | E 16 | E 16 | — | — | E 13 | SSE 7 | — | E 13 | — | SSW 9 | — | — | SSE 10 | SSW 9 |
| kJ | 48 | 47 | 47 | 30 | 30 | 30 | 140 | 4 | 50 | 50 | 5 | 5 | — | — | 3 | 5 | — | 3 | — | 44 | — | — | 10 | 16 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | — | — | E 15 | E 10 | E 15 | SE 9 | E 15 | — | E 16 | — | — | — | E 13 | — | — | — | — | — | — | — | SSE 10 |
| kJ | 16 | 16 | 15 | — | — | 4 | 17 | 4 | 12 | 4 | — | 5 | — | — | — | 3 | — | — | — | — | — | — | — | 10 |
Wind waves Height (m) Direction Period (s) | E 11 | E 4 | ENE 4 | E 4 | ENE 4 | ENE 5 | ENE 7 | ENE 7 | ENE 6 | E 7 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | ESE 8 | E 8 | ESE 9 | E 10 | E 10 | E 11 |
| kJ | 220 | 21 | 16 | 30 | 42 | 87 | 313 | 231 | 165 | 330 | 520 | 463 | 298 | 233 | 187 | 176 | 311 | 471 | 702 | 675 | 1391 | 1895 | 2098 | 4307 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 64 | 9 | 9 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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