Surf Forecasts:
How big are the waves at Niyodo Rivermouth today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 8ft (2.5m), 9s period with ESE swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 8ft (2.5m), 9s period with E swell.
- Evening surf: Evening surf (18 Sep, local time) - 8ft (2.4m), 10s period with ESE swell.
The current surf forecast for Niyodo Rivermouth at 8AM is: 2.5m 9s primary swell from a East-southeast direction and 0.1m 11s secondary swell from a South direction (forecast issued at 02:00am September 18). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 8ft (2.5m) | 9s |
| Afternoon (18 Sep) | 8ft (2.5m) | 9s |
| Evening (18 Sep) | 8ft (2.4m) | 10s |
Table - waves today at Niyodo Rivermouth. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sat afternoon. Warm (max 30°C on Sun morning, min 22°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||||||||||
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) | ESE 8 | E 8 | E 9 | ESE 9 | E 9 | E 9 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | E 10 | ESE 13 | ESE 15 | ESE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 13 | ESE 13 | ESE 13 | ESE 13 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 406 | 588 | 790 | 976 | 1079 | 1126 | 1086 | 980 | 901 | 809 | 1281 | 1301 | 2532 | 5364 | 5008 | 4176 | 3688 | 3062 | 2621 | 2860 | 3656 | 3831 | 4373 | 4526 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | glassy | glassy | glassy | cross-on | cross-on | cross | glassy | glassy | off | glassy | on | cross-on | cross-off | off | off | off | off | off | off | off | off | cross-off |
High Tide | 10:36AM1.27m | 8:52PM1.49m | 9:22PM1.39m | 4:06PM1.33m | ||||||||||||||||||||
Low Tide | 3:41AM0.56m | 2:51PM1.11m | 4:47AM0.66m | 6:47AM0.71m | 8:43PM1.27m | |||||||||||||||||||
 | |  |  | | | | |  | |  | | | |  |  | | | | | | | | | |
 | — | 5:48 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:06 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 23 | 25 | 25 | 26 | 25 | 24 | 23 | 23 | 22 | 26 | 28 | 27 | 26 | 24 | 23 | 23 | 23 | 27 | 30 | 29 | 26 | 24 |
Feels °C | 27 | 27 | 26 | 29 | 28 | 28 | 28 | 27 | 26 | 26 | 24 | 29 | 30 | 30 | 29 | 27 | 25 | 25 | 25 | 29 | 30 | 28 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | E 12 | E 12 | — | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SE 15 | ESE 10 | E 10 | ESE 13 | ESE 15 | ESE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 13 | ESE 13 | ESE 13 | ESE 13 |
| kJ | 11 | 12 | — | 2 | 2 | 2 | 8 | 8 | 7 | 60 | 978 | 861 | 2532 | 5364 | 5008 | 4176 | 3688 | 3062 | 2621 | 2860 | 3656 | 3831 | 4373 | 4526 |
Swell 2 Height (m) Direction Period (s) | E 15 | — | — | — | — | — | — | — | — | S 9 | ESE 14 | ESE 13 | ESE 16 | S 9 | S 8 | S 8 | S 8 | S 8 | S 9 | SSW 9 | — | — | — | — |
| kJ | 4 | — | — | — | — | — | — | — | — | 7 | 168 | 680 | 1555 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | S 9 | SE 18 | S 9 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 6 | 449 | 6 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 8 | E 8 | E 9 | ESE 9 | E 9 | E 9 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | E 10 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 406 | 588 | 790 | 976 | 1079 | 1126 | 1086 | 980 | 901 | 809 | 1281 | 1301 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 29 | 29 | 9 | 0 | 0 | 0 | 0 | 29 | 29 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 29 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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