Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 5ft (1.5m), 17s period with SSE swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 8ft (2.5m), 16s period with SSE swell.
- Evening surf: Evening surf (21 Oct, local time) - 8ft (2.5m), 15s period with SSE swell.
The current surf forecast for Niyodo Rivermouth at 3PM is: 2.5m 16s primary swell from a South-southeast direction and 0.6m 10s secondary swell from a East-southeast direction, 1.3m 5s secondary swell from a South-southwest direction (forecast issued at 08:00am October 21). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 5ft (1.5m) | 17s |
| Afternoon (21 Oct) | 8ft (2.5m) | 16s |
| Evening (21 Oct) | 8ft (2.5m) | 15s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 59mm), heaviest during Fri night. Warm (max 28°C on Wed afternoon, min 14°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | ||||||||||||||||||||
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) | SSE 14 | SSE 17 | SSE 17 | SSE 16 | SSE 16 | SSE 15 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | S 14 | S 14 | S 14 | S 13 | S 15 | S 15 | S 15 | SSW 15 | SSW 15 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 1700 | 1259 | 1470 | 3197 | 3373 | 3352 | 3013 | 3296 | 2911 | 2895 | 1833 | 2855 | 1998 | 2197 | 2186 | 1497 | 1256 | 2491 | 2479 | 2309 | 2512 | 2628 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | on | cross-on | cross | cross-off | off | off | off | off | off | off | off | off | off | off | off | glassy | glassy | glassy | cross-off | cross-off |
High Tide | 3:20PM1.52m | 2:53AM1.44m | 3:45PM1.61m | 3:43AM1.58m | 4:09PM1.70m | |||||||||||||||||
Low Tide | 8:28AM0.64m | 9:18PM0.90m | 9:14AM0.57m | 9:48PM0.71m | 9:53AM0.53m | |||||||||||||||||
 |  |  | | |  |  |  | |  | | | | | | | | |  | |  |  | |
 | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — |
 | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:23 | — | — | — | — | — | — | — | 5:22 | — | — |
mm | 1 | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 15 |
Temp °C | 24 | 25 | 27 | 28 | 26 | 22 | 20 | 19 | 16 | 18 | 22 | 22 | 18 | 16 | 14 | 14 | 15 | 18 | 21 | 21 | 20 | 20 |
Feels °C | 28 | 27 | 29 | 29 | 27 | 23 | 20 | 18 | 13 | 15 | 20 | 20 | 15 | 13 | 12 | 11 | 13 | 16 | 20 | 22 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | SSE 14 | SE 13 | SSE 17 | SSE 16 | SSE 16 | SSE 15 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | S 14 | S 14 | S 14 | S 13 | S 15 | S 15 | S 15 | SSW 15 | SSW 15 |
| kJ | 1700 | 878 | 1470 | 3197 | 3373 | 3352 | 3013 | 3296 | 2911 | 2895 | 1833 | 2855 | 1998 | 2197 | 2186 | 1497 | 1256 | 2491 | 2479 | 2309 | 2512 | 2628 |
Swell 2 Height (m) Direction Period (s) | SSE 18 | SSE 17 | SE 13 | ESE 10 | ESE 10 | ESE 10 | S 19 | E 9 | S 18 | E 9 | S 17 | ENE 6 | S 17 | ESE 9 | ESE 10 | SSW 17 | SSW 16 | ESE 10 | SE 9 | — | — | — |
| kJ | 516 | 1259 | 878 | 72 | 71 | 71 | 722 | 106 | 769 | 106 | 1059 | 29 | 783 | 73 | 81 | 837 | 1091 | 83 | 86 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | ESE 10 | ESE 9 | — | — | ESE 9 | E 9 | — | NE 6 | NE 6 | ESE 9 | — | ENE 7 | ESE 10 | ESE 10 | ENE 7 | SE 9 | — | — | — | — | — |
| kJ | — | 32 | 66 | — | — | 62 | 83 | — | 66 | 25 | 88 | — | 34 | 81 | 61 | 35 | 90 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | SW 5 | SW 5 | SSW 5 | SW 5 | WSW 5 | — | — | — | NNE 6 | — | NE 6 | ENE 6 | ENE 6 | ENE 6 | NE 6 | ENE 5 | E 10 | E 10 | E 8 | E 9 | E 9 |
| kJ | 39 | 51 | 76 | 90 | 77 | 44 | — | — | — | 60 | — | 95 | 70 | 57 | 72 | 47 | 14 | 151 | 312 | 682 | 836 | 985 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 0 | 51 | 58 | 58 | 51 | 0 | 0 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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