Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (29 Aug):
- Morning surf: Morning surf (29 Aug, local time) - 3.5ft (1.1m), 8s period with SSW swell.
- Afternoon surf: Afternoon surf (29 Aug, local time) - 4ft (1.2m), 8s period with SSW swell.
- Evening surf: Evening surf (29 Aug, local time) - 4ft (1.2m), 7s period with SSW swell.
The current surf forecast for Niyodo Rivermouth at 8AM is: 1.1m 8s primary swell from a South-southwest direction and 1.0m 8s secondary swell from a South direction, 0.4m 12s secondary swell from a East direction (forecast issued at 02:00am August 29). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Aug) | 3.5ft (1.1m) | 8s |
| Afternoon (29 Aug) | 4ft (1.2m) | 8s |
| Evening (29 Aug) | 4ft (1.2m) | 7s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Sun night. Warm (max 30°C on Sun morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||||||||||
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) | S 8 | S 8 | SSW 8 | SSW 8 | S 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SSW 8 | SSW 8 | S 8 | S 9 | S 8 | S 8 | S 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 138 | 115 | 96 | 128 | 115 | 151 | 147 | 147 | 117 | 117 | 91 | 70 | 68 | 68 | 68 | 66 | 66 | 87 | 94 | 68 | 73 | 45 | 68 | 66 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | glassy | on | on | on | glassy | glassy | glassy | glassy | glassy | on | on | on | glassy | glassy | glassy | glassy | glassy | on | on | on | glassy |
High Tide | 6:14AM1.86m | 6:56PM1.84m | 6:50AM1.86m | 7:19PM1.85m | 7:27AM1.82m | 7:43PM1.84m | ||||||||||||||||||
Low Tide | 00:21AM0.60m | 12:37PM0.21m | 00:51AM0.50m | 1:05PM0.28m | 1:22AM0.42m | 1:34PM0.40m | ||||||||||||||||||
 | |  | | |  | | | | |  | | | | |  | | | | | | | |  | |
 | — | 5:35 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:32 | — |
mm | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | — | 2 | 4 | 1 | — | — | — | 1 | — | — | — |
Temp °C | 27 | 27 | 26 | 28 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 28 | 30 | 30 | 28 | 27 | 26 | 26 | 26 | 28 | 29 | 29 | 28 | 26 |
Feels °C | 31 | 32 | 32 | 33 | 33 | 33 | 33 | 33 | 33 | 31 | 31 | 33 | 34 | 35 | 33 | 33 | 32 | 32 | 32 | 33 | 33 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | E 12 | S 8 | SSW 8 | S 8 | E 12 | E 12 | E 12 | E 11 | E 10 | SSW 7 | SSW 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SE 10 | SSW 8 | SSW 8 | S 8 | S 9 | S 8 | S 8 | S 8 |
| kJ | 75 | 115 | 96 | 115 | 44 | 44 | 43 | 41 | 34 | 117 | 91 | 70 | 68 | 68 | 68 | 66 | 16 | 87 | 94 | 68 | 73 | 45 | 68 | 66 |
Swell 2 Height (m) Direction Period (s) | SE 9 | E 12 | E 12 | E 12 | SE 9 | SE 9 | SSE 11 | SE 11 | SE 11 | E 10 | E 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | E 11 | SE 11 | SE 10 | SE 10 | SE 10 | SSW 9 | SW 9 | SW 9 |
| kJ | 14 | 72 | 45 | 44 | 14 | 13 | 12 | 19 | 19 | 33 | 20 | 28 | 27 | 27 | 28 | 27 | 21 | 18 | 17 | 16 | 25 | 31 | 21 | 21 |
Swell 3 Height (m) Direction Period (s) | SE 12 | SSE 9 | SE 9 | SE 9 | SE 13 | SE 14 | SE 9 | SE 9 | SSE 9 | SE 11 | SE 11 | E 11 | E 11 | E 11 | E 11 | E 11 | SW 9 | E 11 | E 11 | E 11 | E 11 | SE 10 | SE 10 | SE 10 |
| kJ | 6 | 8 | 14 | 14 | 7 | 7 | 3 | 3 | 8 | 19 | 30 | 22 | 21 | 9 | 21 | 21 | 3 | 21 | 21 | 21 | 9 | 24 | 24 | 24 |
Wind waves Height (m) Direction Period (s) | S 8 | — | — | SSW 8 | S 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | — | — | — | — | — | — | — | S 7 | SW 4 | — | — | — | — | — | — |
| kJ | 138 | — | — | 128 | 115 | 151 | 147 | 147 | 117 | — | — | — | — | — | — | — | 66 | 6 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 51 | 51 | 0 | 0 | 51 | 51 | 51 | 0 | 0 | 0 | 0 | 0 | 51 | 51 | 51 | 0 | 0 | 0 | 0 | 0 | 51 | 51 | 51 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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