Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (21 Aug):
- Afternoon surf: Afternoon surf (21 Aug, local time) - 3.5ft (1.0m), 9s period with S swell.
- Evening surf: Evening surf (21 Aug, local time) - 3.5ft (1.0m), 9s period with S swell.
The current surf forecast for Niyodo Rivermouth at 10PM is: 1.0m 9s primary swell from a South direction and 0.4m 11s secondary swell from a East-southeast direction (forecast issued at 02:00pm August 21). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | - | - |
| Afternoon (21 Aug) | 3.5ft (1.0m) | 9s |
| Evening (21 Aug) | 3.5ft (1.0m) | 9s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 30°C on Sun morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | ||||||||||||||||||
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) | S 10 | S 9 | S 9 | S 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 9 | SSW 9 | SSW 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 183 | 168 | 164 | 165 | 135 | 138 | 135 | 135 | 106 | 103 | 96 | 73 | 72 | 72 | 72 | 72 | 55 | 88 | 90 | 120 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | glassy | glassy | glassy | glassy | glassy | on | on | glassy | glassy | glassy | glassy | glassy | glassy | on | on | on | glassy |
High Tide | 2:33PM1.21m | 10:41PM1.41m | 4:35PM1.33m | 00:46AM1.36m | 4:50PM1.43m | |||||||||||||||
Low Tide | 3:45PM1.21m | 7:39AM0.66m | 8:21PM1.28m | 9:06AM0.57m | ||||||||||||||||
 |  | |  | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — |
 | — | — | 6:45 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:43 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 28 | 27 | 26 | 25 | 25 | 28 | 29 | 29 | 28 | 27 | 26 | 25 | 25 | 28 | 30 | 29 | 28 | 27 |
Feels °C | 33 | 33 | 33 | 33 | 31 | 30 | 30 | 33 | 32 | 33 | 32 | 32 | 31 | 30 | 29 | 32 | 33 | 32 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 9 | S 9 | S 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 9 | SSW 9 | SSW 9 |
| kJ | 183 | 168 | 164 | 165 | 135 | 138 | 135 | 135 | 106 | 103 | 96 | 73 | 72 | 72 | 72 | 72 | 55 | 88 | 90 | 103 |
Swell 2 Height (m) Direction Period (s) | ESE 11 | ESE 11 | SE 11 | ESE 11 | ESE 11 | SE 11 | SE 11 | ESE 10 | ESE 12 | ESE 10 | E 10 | E 10 | E 10 | E 10 | ESE 13 | E 10 | E 10 | E 10 | SE 5 | SE 12 |
| kJ | 44 | 44 | 29 | 45 | 45 | 31 | 31 | 30 | 45 | 35 | 31 | 31 | 31 | 30 | 55 | 35 | 31 | 30 | 10 | 120 |
Swell 3 Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 6 | ESE 6 | E 9 | ESE 9 | E 9 | SE 11 | SE 10 | SE 10 | ESE 10 | ESE 13 | ESE 13 | ESE 13 | E 10 | ESE 13 | SE 11 | SE 5 | E 10 | E 9 |
| kJ | 9 | 9 | 8 | 8 | 14 | 29 | 28 | 31 | 17 | 16 | 10 | 35 | 34 | 35 | 31 | 33 | 29 | 6 | 30 | 27 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 51 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 51 | 51 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Niyodo Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest