Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (22 Aug):
- Morning surf: Morning surf (22 Aug, local time) - 3ft (0.9m), 9s period with SSW swell.
- Afternoon surf: Afternoon surf (22 Aug, local time) - 2.5ft (0.8m), 9s period with SSW swell.
- Evening surf: Evening surf (22 Aug, local time) - 2.5ft (0.7m), 8s period with SSW swell.
The current surf forecast for Niyodo Rivermouth at 11AM is: 0.9m 9s primary swell from a South-southwest direction and 0.4m 12s secondary swell from a East-southeast direction (forecast issued at 02:00am August 22). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Aug) | 3ft (0.9m) | 9s |
| Afternoon (22 Aug) | 2.5ft (0.8m) | 9s |
| Evening (22 Aug) | 2.5ft (0.7m) | 8s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Sun night. Warm (max 30°C on Sat morning, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||||||||||
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 | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | 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 8 | SSW 8 | SE 12 | SE 12 | SE 13 | SE 20 | SE 19 | SE 18 | SE 17 | SE 17 | SE 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 135 | 138 | 135 | 135 | 106 | 103 | 96 | 73 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 120 | 93 | 132 | 190 | 535 | 1665 | 2879 | 4536 | 4883 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | on | on | glassy | glassy | glassy | glassy | glassy | glassy | on | on | on | glassy | glassy | glassy | glassy | on | on | on | glassy | glassy |
High Tide | 10:41PM1.41m | 4:35PM1.33m | 00:46AM1.36m | 4:50PM1.43m | 2:38AM1.41m | 5:10PM1.53m | ||||||||||||||||||
Low Tide | 7:39AM0.66m | 8:21PM1.28m | 9:06AM0.57m | 9:54PM1.19m | 9:59AM0.46m | |||||||||||||||||||
 |  |  | | | | | | | | | | | |  | |  | | | | |  | | | |
 | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:42 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 1 | — |
Temp °C | 26 | 26 | 25 | 28 | 30 | 29 | 28 | 27 | 26 | 25 | 25 | 28 | 30 | 30 | 28 | 27 | 26 | 26 | 25 | 28 | 29 | 29 | 27 | 26 |
Feels °C | 32 | 32 | 30 | 33 | 34 | 32 | 33 | 33 | 31 | 29 | 29 | 32 | 33 | 33 | 32 | 33 | 31 | 31 | 29 | 32 | 32 | 33 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | 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 8 | SSW 8 | S 8 | SE 12 | SE 13 | SE 13 | SE 13 | SE 18 | SE 17 | SE 17 | SE 16 |
| kJ | 135 | 138 | 135 | 135 | 106 | 103 | 96 | 73 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 68 | 93 | 132 | 168 | 239 | 1665 | 2879 | 4536 | 4883 |
Swell 2 Height (m) Direction Period (s) | 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 | E 10 | SE 12 | SW 8 | S 8 | SE 20 | SE 19 | S 8 | SSE 8 | E 12 | E 12 |
| kJ | 45 | 31 | 31 | 30 | 45 | 35 | 31 | 31 | 31 | 30 | 55 | 35 | 31 | 30 | 30 | 120 | 34 | 21 | 190 | 535 | 46 | 20 | 69 | 44 |
Swell 3 Height (m) Direction Period (s) | E 9 | ESE 9 | E 9 | SE 11 | SE 10 | SE 10 | ESE 10 | ESE 13 | ESE 13 | ESE 13 | E 10 | SE 11 | SE 11 | SE 11 | ESE 11 | E 9 | S 8 | SSW 8 | SSW 8 | E 12 | E 12 | E 12 | SSW 10 | E 16 |
| kJ | 14 | 29 | 28 | 31 | 17 | 16 | 10 | 35 | 34 | 35 | 31 | 29 | 29 | 29 | 22 | 27 | 34 | 27 | 28 | 71 | 77 | 74 | 36 | 20 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 51 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 51 | 51 | 0 | 0 | 0 | 0 | 82 | 82 | 58 | 9 | 9 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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