Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 11ft (3.5m), 13s period with ESE swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 10ft (3.0m), 12s period with ESE swell.
- Evening surf: Evening surf (21 Sep, local time) - 5.5ft (1.7m), 11s period with ESE swell.
The current surf forecast for Niyodo Rivermouth at 8AM is: 3.5m 13s primary swell from a East-southeast direction (forecast issued at 02:00am September 21). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 11ft (3.5m) | 13s |
| Afternoon (21 Sep) | 10ft (3.0m) | 12s |
| Evening (21 Sep) | 5.5ft (1.7m) | 11s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Tue afternoon, min 19°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||||||||||
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 13 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | ESE 9 | SE 8 | E 10 | ESE 8 | ESE 8 | S 8 | S 8 | S 8 | SSE 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 4570 | 4642 | 4389 | 4299 | 3597 | 2341 | 1227 | 724 | 452 | 245 | 154 | 113 | 85 | 60 | 40 | 25 | 10 | 8 | 6 | 6 | 5 | 5 | 5 | 8 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | glassy | on | on | glassy | cross-off |
High Tide | 00:05AM1.30m | 4:10PM1.43m | 2:22AM1.37m | 4:26PM1.53m | 3:23AM1.49m | 4:45PM1.62m | ||||||||||||||||||
Low Tide | 8:31AM0.64m | 9:35PM1.14m | 9:26AM0.53m | 10:02PM1.00m | 10:04AM0.43m | |||||||||||||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | | | | |
 | — | 5:50 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:04 | — | — | — | — | — | — | — | 6:02 | — | — | — | — | — | — | — | 6:01 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 24 | 25 | 26 | 26 | 24 | 23 | 21 | 20 | 20 | 25 | 28 | 29 | 25 | 22 | 20 | 20 | 19 | 23 | 26 | 25 | 24 | 22 |
Feels °C | 24 | 23 | 23 | 25 | 26 | 25 | 24 | 23 | 20 | 19 | 19 | 24 | 28 | 29 | 26 | 23 | 20 | 20 | 18 | 23 | 27 | 26 | 27 | 24 |
Swell 1 Height (m) Direction Period (s) | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | ESE 9 | SE 8 | ENE 6 | ENE 6 | ENE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 |
| kJ | 4570 | 4642 | 4389 | 4299 | 3597 | 2341 | 1227 | 724 | 452 | 245 | 154 | 113 | 85 | 60 | 40 | 25 | 10 | 14 | 8 | 9 | 5 | 5 | 5 | 5 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | NNW 3 | SE 10 | SE 10 | ENE 5 | E 9 | ESE 9 | ESE 8 | ESE 8 | E 4 | E 4 | S 8 | SSE 9 |
| kJ | — | — | — | — | — | 2 | 2 | 1 | 1 | 1 | 6 | 5 | 1 | 15 | 15 | 2 | 6 | 8 | 6 | 6 | 2 | 1 | 5 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 8 | NE 6 | S 8 | S 8 | S 8 | S 8 | E 5 | SSE 9 | ENE 6 | E 10 | S 8 | S 8 | S 8 | S 8 | SE 9 | S 8 |
| kJ | — | — | — | — | — | — | — | — | 1 | 2 | 6 | 5 | 5 | 5 | 2 | 8 | 4 | 7 | 5 | 5 | 5 | 5 | 3 | 5 |
Wind waves Height (m) Direction Period (s) | N 4 | NW 4 | NW 4 | NNW 4 | NW 4 | NNW 3 | N 3 | N 3 | NNW 3 | NNW 3 | N 3 | NNW 3 | — | — | — | — | ENE 4 | — | NNW 2 | — | — | — | — | — |
| kJ | 19 | 28 | 23 | 32 | 13 | 6 | 5 | 5 | 6 | 6 | 6 | 3 | — | — | — | — | 2 | — | 1 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 9 | 9 | 224 | 224 | 9 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 229 | 55 | 55 | 233 | 279 | 906 | 906 | 653 | 638 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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