Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (31 Jul):
- Afternoon surf: Afternoon surf (31 Jul, local time) - 1.5ft (0.4m), 9s period with SE swell.
- Evening surf: Evening surf (31 Jul, local time) - 1.5ft (0.4m), 9s period with SE swell.
The current surf forecast for Niyodo Rivermouth at 11PM is: 0.4m 9s primary swell from a Southeast direction and 0.3m 5s secondary swell from a South-southwest direction (forecast issued at 02:00pm July 31). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | - | - |
| Afternoon (31 Jul) | 1.5ft (0.4m) | 9s |
| Evening (31 Jul) | 1.5ft (0.4m) | 9s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 34°C on Sun morning, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | ||||||||||||||||||
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) | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 13 | SE 13 | ESE 10 | SE 10 | SE 10 | SE 10 | ESE 15 | ESE 16 | ESE 16 | ESE 16 | ESE 18 | ESE 15 | ESE 16 | ESE 16 | ESE 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 24 | 22 | 23 | 22 | 22 | 26 | 26 | 42 | 28 | 27 | 28 | 42 | 102 | 100 | 149 | 348 | 222 | 561 | 724 | 662 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | glassy | off | off | off | glassy | on | on | glassy | glassy | off | off | off | glassy | on | on | glassy | off |
High Tide | 7:38PM1.76m | 7:03AM1.79m | 8:03PM1.77m | 7:40AM1.75m | 8:28PM1.77m | |||||||||||||||
Low Tide | 1:19AM0.73m | 1:34PM0.21m | 1:51AM0.67m | 2:03PM0.30m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — |
 | — | — | 7:06 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 32 | 31 | 30 | 28 | 27 | 27 | 26 | 31 | 32 | 31 | 30 | 29 | 28 | 28 | 28 | 33 | 34 | 32 | 31 | 29 |
Feels °C | 34 | 34 | 35 | 32 | 29 | 29 | 28 | 33 | 33 | 34 | 35 | 33 | 31 | 31 | 31 | 37 | 38 | 36 | 37 | 34 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 11 | ESE 16 | ESE 16 | ESE 16 | ESE 18 | ESE 15 | ESE 16 | ESE 16 | ESE 16 |
| kJ | 22 | 22 | 22 | 22 | 22 | 23 | 21 | 42 | 28 | 27 | 28 | 29 | 102 | 100 | 149 | 348 | 222 | 561 | 724 | 662 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SSW 6 | SSW 6 | SSW 5 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SW 6 | SSW 6 | ESE 15 | ESE 15 | SE 11 | SE 11 | SE 11 | SE 9 | ESE 18 | SE 9 | SSW 8 | SE 9 |
| kJ | 24 | 6 | 6 | 4 | 4 | 3 | 3 | 3 | 1 | 6 | 21 | 42 | 19 | 19 | 19 | 41 | 121 | 22 | 7 | 14 |
Swell 3 Height (m) Direction Period (s) | S 4 | SE 13 | SE 12 | SE 11 | SE 11 | SE 13 | SE 13 | S 7 | S 7 | ESE 16 | SSW 5 | SSW 5 | SSW 4 | SSW 4 | E 11 | S 9 | SE 9 | SSW 8 | SE 16 | SSW 8 |
| kJ | 1 | 7 | 23 | 20 | 20 | 26 | 26 | 1 | 1 | 25 | 3 | 2 | 2 | 2 | 21 | 2 | 20 | 7 | 10 | 7 |
Wind waves Height (m) Direction Period (s) | — | S 4 | — | — | — | — | — | — | S 4 | — | — | — | — | — | — | — | S 7 | — | — | — |
| kJ | — | 1 | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | 9 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 497 | 51 | 0 | 29 | 29 | 0 | 0 | 497 | 433 | 433 | 0 | 0 | 0 | 0 | 0 | 0 | 64 | 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)
Latest Updates
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