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Surf Forecasts:
Yasuda Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 am Thursday 28 May 2026 JSTForecast update in hr min s Forecast update imminent
Yasuda Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Yasuda Rivermouth sea temperature is
23.1° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Yasuda Rivermouth today (28 May):
- Morning surf: Morning surf (28 May, local time) - 4ft (1.2m), 7s period with SSW swell.
- Afternoon surf: Afternoon surf (28 May, local time) - 3.5ft (1.0m), 7s period with S swell.
- Evening surf: Evening surf (28 May, local time) - 3.5ft (1.0m), 7s period with S swell.
The current surf forecast for Yasuda Rivermouth at 1PM is: 1.1m 7s primary swell from a South direction and 0.9m 7s secondary swell from a East-southeast direction (forecast issued at 08:00am May 28). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 May) | 4ft (1.2m) | 7s |
| Afternoon (28 May) | 3.5ft (1.0m) | 7s |
| Evening (28 May) | 3.5ft (1.0m) | 7s |
Table - waves today at Yasuda Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 27°C on Fri morning, min 19°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 28 | Friday 29 | Saturday 30 | Sun 31 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 7 | SSW 7 | SSW 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SW 7 | SW 7 | SW 7 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 10 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | |
200 | 135 | 128 | 97 | 94 | 86 | 86 | 89 | 89 | 47 | 38 | 36 | 50 | 47 | 47 | 47 | 48 | 48 | 77 | 83 | 95 | 93 | 93 | 123 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-on | cross-on | on | glassy | cross-off | glassy | glassy | cross-off | cross-on | on | cross-on | cross-on | cross-off | off | cross-off | cross-off | glassy | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | |
High Tide | 3:29AM1.61m | 4:47PM1.58m | 4:00AM1.63m | 5:27PM1.63m | 4:31AM1.66m | 6:04PM1.67m | ||||||||||||||||||
Low Tide | 10:10AM0.39m | 10:20PM0.88m | 10:44AM0.29m | 10:58PM0.90m | 11:17AM0.22m | 11:32PM0.92m | ||||||||||||||||||
 |  | | | |  | | |  | | | | |  | | | | | | | | | | | |
 | 4:56 | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:54 |
 | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:06 | — | — | 7:07 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 24 | 24 | 25 | 25 | 24 | 23 | 23 | 23 | 26 | 27 | 27 | 25 | 22 | 21 | 20 | 19 | 23 | 24 | 24 | 22 | 20 | 20 | 20 |
26 | 27 | 28 | 29 | 30 | 28 | 28 | 27 | 26 | 27 | 28 | 28 | 27 | 23 | 21 | 21 | 19 | 24 | 24 | 24 | 23 | 20 | 20 | 20 | |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | SSW 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 10 | ESE 11 | ESE 11 | ESE 11 | ESE 11 |
 kJ | 200 | 118 | 128 | 97 | 94 | 86 | 86 | 89 | 89 | 47 | 35 | 36 | 22 | 27 | 47 | 47 | 48 | 48 | 77 | 83 | 95 | 93 | 93 | 123 |
Swell 2 Height (m) Direction Period (s) | SSW 7 | SSW 7 | ESE 7 | E 8 | E 8 | E 8 | E 8 | E 8 | ESE 8 | SSE 6 | SSE 6 | SSE 6 | E 10 | E 10 | SW 6 | ENE 4 | ENE 5 | ENE 5 | ENE 4 | SSE 6 | SSE 5 | E 3 | S 15 | SSE 14 |
| kJ | 118 | 135 | 82 | 84 | 63 | 46 | 48 | 33 | 22 | 25 | 21 | 21 | 50 | 47 | 20 | 8 | 10 | 9 | 4 | 3 | 3 | 1 | 18 | 67 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | ESE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 10 | SE 10 | E 8 | ESE 10 | E 8 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | ESE 12 | SSE 6 | SW 6 | ENE 4 | SE 9 | S 5 | S 17 |
| kJ | 16 | 16 | 9 | 25 | 23 | 23 | 14 | 23 | 23 | 36 | 38 | 23 | 14 | 13 | 11 | 6 | 6 | 28 | 6 | 1 | 1 | 3 | 2 | 51 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 5 | NE 5 | NE 5 | NE 4 | ENE 4 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 25 | 19 | 10 | 9 | 3 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 22 | 22 | 22 | 0 | 0 | 0 | 0 | 0 | 22 | 22 | 29 | 22 | 0 | 0 | 0 | 0 | 0 | 342 | 516 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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