Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 2.5ft (0.8m), 8s period with ESE swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 3.5ft (1.0m), 5s period with ESE swell.
- Evening surf: Evening surf (18 Aug, local time) - 3ft (0.9m), 8s period with ESE swell.
The current surf forecast for Niyodo Rivermouth at 3AM is: 0.7m 9s primary swell from a East-southeast direction and 0.4m 8s secondary swell from a South-southwest direction (forecast issued at 08:00pm August 17). The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 2.5ft (0.8m) | 8s |
| Afternoon (18 Aug) | 3.5ft (1.0m) | 5s |
| Evening (18 Aug) | 3ft (0.9m) | 8s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Tue afternoon. Warm (max 29°C on Wed morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||||
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 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 5 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 141 | 124 | 106 | 82 | 101 | 96 | 151 | 53 | 128 | 96 | 96 | 96 | 70 | 68 | 73 | 89 | 60 | 64 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | off | off | glassy | cross-on | cross-on | cross-on | cross | glassy | off | off | glassy | on | on | cross-on | glassy |
High Tide | 8:43PM1.73m | 9:16AM1.53m | 9:06PM1.67m | 10:07AM1.38m | ||||||||||||||
Low Tide | 3:05AM0.49m | 2:58PM0.75m | 3:46AM0.54m | 3:21PM0.92m | ||||||||||||||
 |  | | | | | |  | |  | |  |  | | | | | | |
 | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — |
 | 6:50 | — | — | — | — | — | — | — | 6:49 | — | — | — | — | — | — | — | 6:47 | — |
mm | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 25 | 24 | 24 | 27 | 28 | 28 | 27 | 26 | 25 | 25 | 25 | 28 | 29 | 29 | 28 | 26 |
Feels °C | 30 | 30 | 29 | 27 | 27 | 31 | 31 | 31 | 31 | 30 | 29 | 29 | 29 | 33 | 32 | 33 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | S 8 | SSW 8 | ESE 9 | ESE 9 | ESE 9 | SSW 8 | SSW 8 | SSW 8 | ESE 8 | SE 10 | SE 10 | ESE 8 | ESE 8 | ESE 8 | SE 10 | SE 10 | ESE 8 | ESE 8 |
| kJ | 31 | 20 | 106 | 82 | 101 | 19 | 19 | 19 | 128 | 28 | 27 | 96 | 70 | 68 | 26 | 26 | 60 | 64 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | SSW 8 | SSW 8 | SSW 8 | SE 11 | SE 11 | SE 11 | SSW 8 | SSW 8 | SSW 7 | SE 10 | SE 10 | SE 10 | SSW 8 | SSW 8 | SE 10 | SE 10 |
| kJ | 30 | 30 | 19 | 19 | 19 | 30 | 29 | 29 | 19 | 11 | 11 | 28 | 27 | 27 | 11 | 12 | 25 | 26 |
Swell 3 Height (m) Direction Period (s) | SE 11 | — | SE 11 | SE 11 | SE 11 | S 10 | S 10 | SW 10 | SE 10 | SW 9 | SW 9 | SSW 7 | SSW 8 | SSW 8 | SW 9 | SW 9 | SSW 8 | SSW 8 |
| kJ | 30 | — | 30 | 30 | 30 | 2 | 2 | 4 | 28 | 3 | 3 | 11 | 11 | 11 | 3 | 3 | 12 | 11 |
Wind waves Height (m) Direction Period (s) | ESE 9 | ESE 9 | — | — | — | ESE 8 | ESE 8 | ESE 5 | — | ESE 8 | ESE 8 | — | — | — | ESE 8 | ESE 8 | — | — |
| kJ | 141 | 124 | — | — | — | 96 | 151 | 53 | — | 96 | 96 | — | — | — | 73 | 89 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 539 | 29 | 0 | 0 | 0 | 0 | 330 | 58 | 29 | 29 | 0 | 0 | 0 | 0 | 432 | 58 | 330 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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