Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (20 Jun):
- Morning surf: Morning surf (20 Jun, local time) - 1.5ft (0.4m), 10s period with SE swell.
- Afternoon surf: Afternoon surf (20 Jun, local time) - 4ft (1.2m), 6s period with SSW swell.
- Evening surf: Evening surf (20 Jun, local time) - 7ft (2.1m), 7s period with SSW swell.
The current surf forecast for Niyodo Rivermouth at 12AM is: 0.8m 6s primary swell from a South-southwest direction and 0.4m 10s secondary swell from a Southeast direction (forecast issued at 08:00pm June 19). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jun) | 1.5ft (0.4m) | 10s |
| Afternoon (20 Jun) | 4ft (1.2m) | 6s |
| Evening (20 Jun) | 7ft (2.1m) | 7s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 23mm), heaviest during Sat afternoon. Warm (max 29°C on Sun morning, min 20°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SSW 6 | SSW 6 | SSW 6 | SE 10 | SE 10 | SE 10 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SW 7 | SSW 7 | SSW 7 | SSW 6 | SE 10 | SE 10 | SE 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 48 | 63 | 42 | 35 | 35 | 35 | 37 | 90 | 262 | 396 | 452 | 387 | 452 | 302 | 272 | 243 | 192 | 183 | 83 | 62 | 47 | 46 | 61 | 48 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | on | on | on | cross-on | cross | glassy | cross-on | cross-on | cross | cross | off | off | off | off | glassy | glassy | glassy |
High Tide | 10:00PM1.67m | 9:11AM1.61m | 10:44PM1.61m | 10:16AM1.48m | 11:28PM1.57m | 11:35AM1.37m | ||||||||||||||||||
Low Tide | 3:07PM0.19m | 3:37AM0.91m | 3:55PM0.38m | 4:38AM0.87m | 4:44PM0.58m | 5:45AM0.81m | ||||||||||||||||||
 |  | | |  | | |  |  | |  |  |  | |  | | |  | |  | | | | | |
 | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:54 | — | — | — | — |
 | 7:16 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:17 | — | — | — | — | — | — | 7:17 |
mm | — | 1 | 3 | 3 | 1 | — | — | 2 | 7 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 26 | 29 | 29 | 27 | 22 | 21 | 20 | 21 | 24 | 25 | 26 |
Feels °C | 29 | 28 | 28 | 28 | 27 | 28 | 27 | 26 | 27 | 27 | 27 | 28 | 29 | 29 | 29 | 29 | 28 | 23 | 21 | 20 | 21 | 25 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SSW 8 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SE 10 |
| kJ | 48 | 35 | 42 | 28 | 18 | 24 | 34 | 34 | 24 | 24 | 33 | 33 | 353 | 30 | 30 | 21 | 21 | 116 | 83 | 62 | 47 | 40 | 26 | 48 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 13 | — | SE 12 | SE 12 | SE 12 | SE 12 | SE 9 | E 18 | SE 11 | SE 11 | SE 11 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 10 | SSE 11 |
| kJ | 33 | 34 | 35 | 35 | 35 | 35 | 7 | — | 6 | 6 | 6 | 6 | 31 | 6 | 20 | 19 | 19 | 28 | 29 | 29 | 43 | 46 | 61 | 13 |
Swell 3 Height (m) Direction Period (s) | S 8 | SE 14 | SE 14 | E 8 | E 8 | E 8 | — | — | — | — | — | — | SE 12 | E 9 | E 18 | E 18 | E 18 | SE 11 | SE 11 | SE 11 | SE 16 | S 13 | SE 16 | E 16 |
| kJ | 1 | 7 | 7 | 1 | 1 | 1 | — | — | — | — | — | — | 6 | 2 | 6 | 6 | 6 | 19 | 19 | 19 | 10 | 3 | 10 | 5 |
Wind waves Height (m) Direction Period (s) | — | SSW 6 | — | — | — | — | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SW 7 | NW 3 | NW 3 | NNW 2 | — | — | SSW 6 |
| kJ | — | 63 | — | — | — | — | 37 | 90 | 262 | 396 | 452 | 387 | 452 | 302 | 272 | 243 | 192 | 183 | 1 | 1 | 1 | — | — | 25 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 432 | 283 | 432 | 51 | 82 | 51 | 0 | 51 | 51 | 51 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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