Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Ikumi Beach surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 am Saturday 20 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
20.4° C
(Which is normal for this time of year)How big are the waves at Ikumi Beach today?
The current surf forecast for Ikumi Beach at 10AM is: 1.0m 8s primary swell from a East-southeast direction and 0.1m 13s secondary swell from a East direction (forecast issued at 08:00am December 20). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Dec) | 3.5ft (1.0m) | 8s |
| Afternoon (20 Dec) | 4ft (1.2m) | 8s |
| Evening (20 Dec) | 4ft (1.2m) | 8s |
Table - waves today at Ikumi Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 20 | Sunday 21 | Monday 22 | Tue 23 | |||||||||||||||||||||
| 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 | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 6 | 6 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 14 | 110 | 142 | 158 | 158 | 162 | 166 | 187 | 227 | 187 | 187 | 233 | 222 | 201 | 205 | 210 | 203 | 192 | 220 | 216 | 194 | 162 | 145 | 145 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross | cross | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross- off | cross- off | cross | cross | cross | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 6:44AM 1.68 | 5:27PM 1.70 | 7:22AM 1.68 | 6:08PM 1.70 | 8:00AM 1.67 | 6:51PM 1.68 | ||||||||||||||||||
Low Tide / height (m) | 12:05PM 0.92 | 12:26AM -0.08 | 12:44PM 0.90 | 1:06AM -0.07 | 1:24PM 0.88 | 1:45AM -0.01 | ||||||||||||||||||
Saturday 20 | Sunday 21 | Monday 22 | Tue 23 | |||||||||||||||||||||
| Sunrise | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - |
| Sunset | - | - | - | 4:57 | - | - | - | - | - | - | - | 4:58 | - | - | - | - | - | - | - | 4:58 | - | - | - | - |
 |  | | |  |  | |  | |  |  |  | | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | - | - | 3 | 7 | 2 | 1 | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 16 | 19 | 19 | 16 | 16 | 17 | 16 | 16 | 17 | 17 | 16 | 14 | 12 | 11 | 9 | 8 | 9 | 11 | 11 | 6 | 5 | 4 | 6 |
| Feels °C (?) | 13 | 16 | 18 | 18 | 16 | 16 | 16 | 15 | 15 | 17 | 17 | 16 | 12 | 9 | 8 | 5 | 4 | 4 | 6 | 5 | 1 | 0 | -1 | 1 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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