Nazare Big Wave Challenge Gets Yellow Alert, Could Run Saturday in Giant Waves
70-foot plus waves predicted for Portuguese big wave tow surfing competition.
Surf Forecasts:
Ikumi Beach surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Thursday 11 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Ikumi Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ikumi Beach sea temperature is
21.0° C
(Which is slightly warmer than usual)How big are the waves at Ikumi Beach today?
The current surf forecast for Ikumi Beach at 12AM is: 0.5m 10s primary swell from a East-southeast direction (forecast issued at 08:00pm December 11). An open ocean swell of 0.5m 5s is not directed at the surf break, a second open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | - | - |
| Afternoon (12 Dec) | - | - |
| Evening (12 Dec) | 1.5ft (0.5m) | 10s |
Table - waves today at Ikumi Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thu 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| 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) (?) | 11 | 10 | 10 | 10 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 11 | 12 | 12 | 11 | 11 | 11 | 11 | 7 | 7 | 7 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 64 | 59 | 58 | 57 | 119 | 184 | 202 | 237 | 237 | 197 | 151 | 107 | 49 | 22 | 45 | 46 | 42 | 40 | 61 | 22 | 28 | 40 | 40 | 61 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | cross- off | cross | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross | cross- on | on | glass | glass | glass | cross- off | glass | cross- off | off | off |
High Tide / height (m) | 9:53PM 1.42 | 11:25AM 1.49 | 11:12PM 1.34 | 12:15PM 1.48 | 12:45AM 1.32 | 1:05PM 1.48 | ||||||||||||||||||
Low Tide / height (m) | 4:22PM 0.88 | 4:34AM 0.47 | 5:31PM 0.81 | 5:35AM 0.61 | 6:42PM 0.71 | 6:43AM 0.73 | ||||||||||||||||||
Thu 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:58 | - | - |
| Sunset | - | - | - | - | - | - | - | 4:54 | - | - | - | - | - | - | - | 4:54 | - | - | - | - | - | - | - | 4:54 |
 |  | | | |  | | | | | | | | | |  |  | |  | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 4 | 8 | - | - | - |
| Temp. °C | 13 | 12 | 13 | 11 | 8 | 8 | 10 | 11 | 5 | 3 | 2 | 2 | 2 | 7 | 10 | 11 | 9 | 10 | 11 | 11 | 13 | 14 | 11 | 10 |
| Feels °C (?) | 11 | 10 | 11 | 7 | 2 | 1 | 4 | 5 | -2 | -4 | -3 | -3 | -3 | 3 | 6 | 8 | 7 | 8 | 10 | 9 | 13 | 13 | 4 | 3 |
- Map Icons:
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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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