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Surf Forecasts:
Monabe Rivermouth surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Sunday 22 Mar 2026 JSTForecast update in hr min s Forecast update imminent
Monabe Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Monabe Rivermouth sea temperature is
18.3° C
(Which is slightly warmer than usual)How big are the waves at Monabe Rivermouth today?
The current surf forecast for Monabe Rivermouth at 4AM is: 1.0m 6s primary swell from a South direction and 0.1m 12s secondary swell from a East direction (forecast issued at 08:00pm March 22). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Mar) | 3ft (0.9m) | 6s |
| Afternoon (23 Mar) | 2ft (0.6m) | 6s |
| Evening (23 Mar) | 2.5ft (0.7m) | 6s |
Table - waves today at Monabe Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sun 22 | Monday 23 | Tuesday 24 | Wednesday 25 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 4 | 5 | 6 | 6 | 6 | 6 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 10 | 25 | 49 | 71 | 77 | 60 | 69 | 25 | 41 | 39 | 35 | 38 | 18 | 45 | 55 | 51 | 49 | 48 | 48 | 50 | 51 | 51 | 51 | 53 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | off | off | cross- off | cross | cross- off | off | off | off | off | off | glass | on | on | glass | cross- off | cross- off | glass | glass | cross- off | cross- on | cross- off |
High Tide / height (m) | 8:26PM 1.78 | 7:59AM 1.82 | 9:18PM 1.62 | 8:29AM 1.74 | 10:26PM 1.46 | 9:04AM 1.62 | ||||||||||||||||||
Low Tide / height (m) | 2:07AM 0.71 | 2:40PM 0.20 | 2:41AM 0.90 | 3:30PM 0.30 | 3:20AM 1.08 | |||||||||||||||||||
Sun 22 | Monday 23 | Tuesday 24 | Wednesday 25 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:03 | - | - |
| Sunset | 6:16 | - | - | - | - | - | - | - | 6:16 | - | - | - | - | - | - | - | 6:17 | - | - | - | - | - | - | - |
 |  | |  |  |  | | | |  | | | | |  |  | |  | | | | | | | |
Rain (mm) | 4 | 8 | 6 | 3 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4 | 3 |
| Temp. °C | 11 | 12 | 11 | 11 | 11 | 14 | 17 | 19 | 16 | 12 | 11 | 9 | 8 | 13 | 15 | 15 | 14 | 12 | 11 | 12 | 12 | 13 | 12 | 11 |
| Feels °C (?) | 9 | 11 | 9 | 9 | 9 | 12 | 14 | 15 | 12 | 8 | 7 | 5 | 4 | 10 | 12 | 12 | 12 | 10 | 8 | 10 | 10 | 12 | 9 | 8 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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