Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (12 Sep):
- Morning surf: Morning surf (12 Sep, local time) - 3ft (0.9m), 7s period with SSE swell.
- Afternoon surf: Afternoon surf (12 Sep, local time) - 1.5ft (0.5m), 14s period with E swell.
- Evening surf: Evening surf (12 Sep, local time) - 2ft (0.6m), 14s period with E swell.
The current surf forecast for Niyodo Rivermouth at 10AM is: 0.5m 14s primary swell from a East direction and 0.9m 7s secondary swell from a South-southeast direction (forecast issued at 02:00am September 12). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Sep) | 3ft (0.9m) | 7s |
| Afternoon (12 Sep) | 1.5ft (0.5m) | 14s |
| Evening (12 Sep) | 2ft (0.6m) | 14s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Mon afternoon. Warm (max 28°C on Sun morning, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||||||||||
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 7 | SSE 7 | SSE 7 | SSE 7 | E 14 | E 14 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | E 13 | ESE 13 | E 13 | E 13 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 111 | 84 | 82 | 68 | 89 | 89 | 89 | 134 | 142 | 93 | 88 | 85 | 87 | 257 | 126 | 84 | 102 | 170 | 166 | 162 | 162 | 120 | 123 | 114 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | on | on | cross-on | glassy | glassy | off | off | glassy | on | on | glassy | off |
High Tide | 6:17AM1.93m | 6:43PM1.87m | 6:55AM1.89m | 7:06PM1.85m | 7:33AM1.81m | 7:27PM1.81m | ||||||||||||||||||
Low Tide | 00:14AM0.45m | 12:32PM0.26m | 00:46AM0.35m | 1:01PM0.39m | 1:18AM0.30m | 1:29PM0.54m | ||||||||||||||||||
 | |  |  | | |  |  |  | | | |  | | | | | | | | | | | | |
 | — | 5:45 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:14 | — |
mm | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 |
Temp °C | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 27 | 28 | 28 | 27 | 25 | 25 | 24 | 24 | 27 | 28 | 28 | 26 | 25 |
Feels °C | 31 | 30 | 30 | 30 | 32 | 32 | 32 | 31 | 30 | 29 | 29 | 32 | 32 | 32 | 32 | 30 | 29 | 28 | 27 | 31 | 31 | 31 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 7 | S 7 | E 14 | SSE 7 | E 14 | E 14 | E 13 | ESE 9 | ESE 9 | ESE 13 | E 13 | SE 8 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 |
| kJ | 111 | 84 | 82 | 68 | 47 | 34 | 89 | 41 | 142 | 93 | 88 | 48 | 55 | 257 | 126 | 82 | 102 | 170 | 166 | 162 | 162 | 120 | 123 | 114 |
Swell 2 Height (m) Direction Period (s) | E 14 | E 14 | E 14 | E 13 | E 14 | E 14 | ESE 10 | E 14 | S 7 | E 4 | ESE 9 | E 13 | E 13 | S 7 | SE 9 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 |
| kJ | 63 | 62 | 58 | 56 | 89 | 89 | 36 | 134 | 23 | 9 | 32 | 85 | 87 | 8 | 49 | 84 | 83 | 83 | 83 | 53 | 50 | 73 | 71 | 72 |
Swell 3 Height (m) Direction Period (s) | E 6 | ESE 10 | ESE 10 | ESE 10 | SE 10 | ESE 10 | SSW 7 | — | ESE 9 | ESE 9 | ESE 4 | S 7 | S 7 | — | S 6 | S 7 | S 7 | S 6 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 |
| kJ | 7 | 18 | 19 | 18 | 24 | 37 | 11 | — | 32 | 32 | 6 | 14 | 14 | — | 7 | 8 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | ENE 6 | E 6 | E 6 | ENE 4 | E 4 | E 4 | SE 7 | E 4 | E 4 | — | S 7 | ESE 4 | — | — | ESE 4 | — | ENE 4 | — | — | — | — | — | — | — |
| kJ | 31 | 20 | 22 | 6 | 9 | 7 | 27 | 10 | 10 | — | 14 | 7 | — | — | 1 | — | 1 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 58 | 58 | 58 | 0 | 0 | 0 | 0 | 0 | 29 | 51 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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