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Surf Forecasts:
Niyodo Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 am Tuesday 02 Jun 2026 JSTForecast update in hr min s Forecast update imminent
Niyodo Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Niyodo Rivermouth sea temperature is
23.7° C
(Which is 1.6°C warmer than normal for this time of year)How big are the waves at Niyodo Rivermouth today (02 Jun):
- Morning surf: Morning surf (02 Jun, local time) - 7ft (2.2m), 13s period with SSW swell.
- Afternoon surf: Afternoon surf (02 Jun, local time) - 8ft (2.5m), 14s period with SSW swell.
- Evening surf: Evening surf (02 Jun, local time) - 10ft (3.0m), 14s period with SSW swell.
The current surf forecast for Niyodo Rivermouth at 8AM is: 2.2m 13s primary swell from a South-southwest direction and 0.4m 10s secondary swell from a East direction, 1.8m 6s secondary swell from a Southeast direction (forecast issued at 02:00am June 02). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Jun) | 7ft (2.2m) | 13s |
| Afternoon (02 Jun) | 8ft (2.5m) | 14s |
| Evening (02 Jun) | 10ft (3.0m) | 14s |
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 167mm), heaviest during Tue night. Warm (max 28°C on Wed afternoon, min 20°C on Wed night). Winds decreasing (strong winds from the ENE on Tue night, calm by Thu morning). | ||||||||||||||||||||||||
Tuesday 2 | Wednesday 3 | Thursday 4 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
S 14 | S 14 | S 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | S 9 | SSW 9 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | |
2155 | 1980 | 2149 | 1649 | 2736 | 2724 | 2993 | 3993 | 9274 | 12529 | 6891 | 3527 | 1511 | 730 | 380 | 425 | 184 | 199 | 156 | 122 | 89 | 70 | 67 | 47 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-off | cross | cross-on | cross-on | cross | cross | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | off | off | off | off | off | glassy | glassy | glassy | cross-on | cross-on | |
High Tide | 6:07AM1.69m | 7:51PM1.65m | 6:40AM1.68m | 8:29PM1.61m | 7:15AM1.64m | |||||||||||||||||||
Low Tide | 00:38AM0.97m | 12:59PM0.19m | 1:11AM0.98m | 1:35PM0.23m | 1:46AM1.00m | 2:12PM0.29m | ||||||||||||||||||
 |  |  |  | | | |  | |  |  |  |  | |  |  |  | | | | | | |  | |
 | — | 4:56 | — | — | — | — | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:54 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:10 | — |
— | 5 | 10 | 16 | 13 | 18 | 25 | 28 | 40 | 4 | 1 | — | — | — | — | — | — | — | — | — | 1 | 3 | 6 | 6 | |
Temp °C | 21 | 20 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 22 | 22 | 27 | 28 | 26 | 22 | 20 | 20 | 20 | 22 | 21 | 20 | 20 | 20 |
23 | 22 | 23 | 22 | 21 | 21 | 21 | 19 | 22 | 19 | 22 | 23 | 29 | 28 | 27 | 23 | 21 | 20 | 20 | 23 | 24 | 23 | 22 | 22 | |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | S 9 | SSW 9 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 |
 kJ | 2155 | 1980 | 2149 | 1649 | 2736 | 2724 | 2993 | 3993 | 9274 | 12529 | 6891 | 3527 | 1511 | 730 | 380 | 425 | 184 | 199 | 156 | 122 | 89 | 70 | 67 | 47 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | ESE 10 | E 10 | E 10 | — | — | — | S 19 | — | ESE 11 | ESE 11 | ESE 10 | SE 10 | SE 10 | SSE 9 | E 9 | SSE 8 | E 10 | ESE 10 | ESE 9 | E 9 | ESE 9 | ESE 9 | E 9 |
| kJ | 58 | 58 | 30 | 45 | — | — | — | 27 | — | 4146 | 2490 | 1508 | 880 | 327 | 221 | 43 | 108 | 17 | 31 | 28 | 27 | 28 | 28 | 42 |
Swell 3 Height (m) Direction Period (s) | — | SE 12 | SE 12 | — | — | — | — | — | — | — | — | NE 7 | E 9 | E 10 | E 9 | SE 15 | E 10 | ESE 11 | SE 11 | SE 11 | SE 11 | ESE 11 | ESE 11 | SE 11 |
| kJ | — | 22 | 22 | — | — | — | — | — | — | — | — | 104 | 251 | 145 | 83 | 8 | 30 | 13 | 20 | 20 | 19 | 12 | 12 | 19 |
Wind waves Height (m) Direction Period (s) | — | — | — | SE 6 | SE 7 | ESE 7 | ESE 8 | ESE 9 | ESE 10 | — | NNW 4 | NW 4 | NW 4 | — | — | NNW 2 | NNW 3 | N 3 | — | — | — | — | — | — |
| kJ | — | — | — | 239 | 230 | 531 | 1492 | 3451 | 6209 | — | 20 | 28 | 4 | — | — | 1 | 2 | 1 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 29 | 380 | 380 | 432 | 539 | 535 | 224 | 224 | 183 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 29 | 29 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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