Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (28 Aug):
- Morning surf: Morning surf (28 Aug, local time) - 3.5ft (1.1m), 8s period with S swell.
- Afternoon surf: Afternoon surf (28 Aug, local time) - 3.5ft (1.0m), 7s period with S swell.
- Evening surf: Evening surf (28 Aug, local time) - 3ft (0.9m), 8s period with SSW swell.
The current surf forecast for Niyodo Rivermouth at 1AM is: 1.4m 9s primary swell from a South direction and 0.6m 8s secondary swell from a South-southwest direction, 0.4m 11s secondary swell from a East direction (forecast issued at 08:00pm August 27). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Aug) | 3.5ft (1.1m) | 8s |
| Afternoon (28 Aug) | 3.5ft (1.0m) | 7s |
| Evening (28 Aug) | 3ft (0.9m) | 8s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Thu night. Warm (max 29°C on Fri morning, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Thu 27 | Friday 28 | Saturday 29 | ||||||||||||||||
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 9 | SSE 9 | S 9 | S 9 | S 8 | S 8 | S 7 | S 7 | SSW 8 | SSW 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | SSW 7 | SSW 7 |
Wave Graph  | ||||||||||||||||||
 kJ | 242 | 188 | 313 | 304 | 258 | 149 | 155 | 100 | 97 | 83 | 111 | 115 | 90 | 90 | 88 | 88 | 91 | 91 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | glassy | glassy | glassy | on | on | glassy | glassy | glassy | glassy | glassy | glassy | on | cross-on | glassy | glassy |
High Tide | 6:12PM1.76m | 5:39AM1.81m | 6:34PM1.80m | 6:14AM1.86m | 6:56PM1.84m | |||||||||||||
Low Tide | 11:53PM0.72m | 12:08PM0.18m | 00:21AM0.60m | 12:37PM0.21m | ||||||||||||||
 |  | | |  | | | | | | |  |  | | | | | | |
 | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — |
 | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:35 | — |
mm | 1 | 1 | 2 | 1 | — | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 28 | 27 | 27 | 27 | 26 | 28 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 28 | 29 | 29 | 28 | 27 |
Feels °C | 34 | 32 | 32 | 33 | 32 | 34 | 33 | 34 | 33 | 33 | 33 | 32 | 32 | 33 | 32 | 32 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSW 8 | SSW 8 | S 8 | S 8 | S 7 | S 7 | S 7 | SSW 8 | S 8 | S 8 | S 8 | S 8 | S 7 | E 12 | SSW 7 | SSW 7 |
| kJ | 242 | 188 | 47 | 46 | 258 | 149 | 155 | 100 | 97 | 83 | 111 | 115 | 90 | 90 | 88 | 44 | 91 | 91 |
Swell 2 Height (m) Direction Period (s) | SSW 9 | E 11 | E 11 | ESE 11 | ESE 11 | SSW 8 | E 13 | E 13 | SSE 8 | SSE 7 | E 12 | E 12 | E 12 | E 12 | E 12 | SE 9 | E 12 | E 11 |
| kJ | 186 | 39 | 38 | 39 | 40 | 59 | 85 | 82 | 37 | 37 | 75 | 72 | 45 | 44 | 44 | 13 | 42 | 41 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 15 | SSW 8 | S 8 | SW 8 | ESE 11 | SSW 8 | SSE 8 | E 13 | E 13 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 14 | SSE 11 | SE 11 |
| kJ | 42 | 17 | 21 | 12 | 17 | 39 | 14 | 24 | 82 | 80 | 14 | 14 | 14 | 14 | 14 | 7 | 12 | 19 |
Wind waves Height (m) Direction Period (s) | — | SSW 9 | S 9 | S 9 | — | SSW 8 | SSW 8 | SSW 7 | SSW 8 | — | — | — | — | — | — | S 7 | SSW 4 | — |
| kJ | — | 181 | 313 | 304 | — | 100 | 127 | 86 | 89 | — | — | — | — | — | — | 88 | 10 | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 51 | 0 | 51 | 0 | 0 | 0 | 51 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 51 | 0 | 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