Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 13ft (4.0m), 13s period with ESE swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 13ft (4.0m), 13s period with ESE swell.
- Evening surf: Evening surf (20 Sep, local time) - 11ft (3.5m), 13s period with ESE swell.
The current surf forecast for Niyodo Rivermouth at 8AM is: 4.0m 13s primary swell from a East-southeast direction (forecast issued at 02:00am September 20). The wind direction is predicted to be offshore and the swell rating is 11.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 13ft (4.0m) | 13s |
| Afternoon (20 Sep) | 13ft (4.0m) | 13s |
| Evening (20 Sep) | 11ft (3.5m) | 13s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Sun morning, min 18°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||||||
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) | ESE 14 | ESE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | E 12 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 5502 | 5421 | 5105 | 4954 | 5010 | 5010 | 4805 | 4152 | 4087 | 4496 | 4427 | 4642 | 4496 | 4012 | 3199 | 1978 | 1098 | 617 | 389 | 218 | 96 | 47 | 29 | 17 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | off | off | off | off | off | off | off | off | glassy | off | off |
High Tide | 9:22PM1.39m | 4:06PM1.33m | 00:05AM1.30m | 4:10PM1.43m | 2:22AM1.37m | 4:26PM1.53m | ||||||||||||||||||
Low Tide | 6:47AM0.71m | 8:43PM1.27m | 8:31AM0.64m | 9:35PM1.14m | 9:26AM0.53m | |||||||||||||||||||
 |  |  | | | |  | | | | | | |  | | | | | | | | | |  | |
 | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:06 | — | — | — | — | — | — | — | 6:04 | — | — | — | — | — | — | — | 6:02 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 24 | 27 | 29 | 27 | 25 | 24 | 24 | 24 | 23 | 25 | 25 | 24 | 24 | 24 | 23 | 22 | 21 | 24 | 28 | 28 | 24 | 21 |
Feels °C | 28 | 26 | 26 | 28 | 30 | 27 | 27 | 25 | 24 | 24 | 23 | 25 | 24 | 24 | 24 | 24 | 23 | 22 | 20 | 22 | 28 | 30 | 24 | 21 |
Swell 1 Height (m) Direction Period (s) | ESE 14 | ESE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | E 12 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | SE 9 |
| kJ | 5502 | 5421 | 5105 | 4954 | 5010 | 5010 | 4805 | 4152 | 4087 | 4496 | 4427 | 4642 | 4496 | 4012 | 3199 | 1978 | 1098 | 617 | 389 | 218 | 96 | 47 | 29 | 13 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 9 | S 8 | S 8 | S 8 | SE 10 | SE 10 | SE 9 | E 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 16 | 15 | 14 | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 6 | — | S 8 | S 8 | S 8 | S 8 | ENE 6 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 1 | 5 | 5 | 5 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NNW 4 | NW 4 | NNW 4 | NW 4 | NW 4 | NNW 3 | NNW 3 | NNW 3 | NNW 3 | NNW 3 | NNW 3 | — | — | — | N 2 |
| kJ | — | — | — | — | — | — | — | — | — | 20 | 13 | 31 | 24 | 24 | 8 | 7 | 4 | 6 | 7 | 4 | — | — | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 243 | 587 | 51 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 55 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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