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Surf Forecasts:
Ikumi Beach surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 pm Monday 18 May 2026 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
21.4° 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 9PM is: 0.6m 9s primary swell from a East-southeast direction and 0.4m 4s secondary swell from a Southeast direction, 0.4m 4s secondary swell from a Southeast direction (forecast issued at 02:00pm May 18). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | - | - |
| Afternoon (18 May) | 2.5ft (0.8m) | 9s |
| Evening (18 May) | 2ft (0.6m) | 9s |
Table - waves today at Ikumi Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 27mm), heaviest during Thu morning. Warm (max 25°C on Mon afternoon, min 18°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 11 | SE 11 | ESE 11 | ESE 11 | ESE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SSW 6 | |
68 | 86 | 68 | 61 | 88 | 130 | 104 | 106 | 108 | 160 | 163 | 163 | 143 | 143 | 141 | 157 | 151 | 148 | 127 | 125 | 125 | 122 | 117 | 226 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | glassy | glassy | off | glassy | glassy | cross-on | cross-on | cross | glassy | off | glassy | glassy | glassy | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 7:36PM1.74m | 6:30AM1.76m | 8:18PM1.68m | 7:06AM1.71m | 9:04PM1.62m | 7:46AM1.64m | ||||||||||||||||||
Low Tide | 12:46PM-0.04m | 1:01AM0.89m | 1:24PM-0.00m | 1:39AM0.94m | 2:05PM0.07m | 2:21AM0.99m | ||||||||||||||||||
 | | |  | | | | | | | | |  |  |  |  |  | |  | | | | | | |
 | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:58 | — | — |
 | — | — | 6:57 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | 7:00 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | — | — | — | 1 | 5 | |
Temp °C | 25 | 25 | 23 | 20 | 19 | 18 | 18 | 22 | 24 | 24 | 22 | 19 | 19 | 20 | 21 | 21 | 21 | 22 | 23 | 22 | 22 | 22 | 22 | 22 |
24 | 24 | 24 | 22 | 20 | 19 | 19 | 22 | 23 | 23 | 23 | 21 | 20 | 21 | 23 | 24 | 25 | 26 | 25 | 25 | 24 | 24 | 24 | 23 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 11 | SE 11 | ESE 11 | ESE 11 | ESE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | S 6 | ESE 10 | S 6 | ESE 10 | S 7 |
 kJ | 68 | 86 | 68 | 61 | 88 | 130 | 104 | 106 | 108 | 160 | 163 | 163 | 143 | 143 | 141 | 157 | 151 | 148 | 127 | 69 | 125 | 113 | 117 | 171 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 10 | SE 12 | SE 4 | SE 4 | SE 11 | SE 10 | — | — | — | — | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 6 | — | S 7 | S 7 | ESE 10 | — | ESE 10 | — | ESE 10 |
| kJ | 6 | 4 | 21 | 3 | 3 | 30 | 27 | — | — | — | — | 15 | 19 | 18 | 26 | 23 | — | 9 | 4 | 125 | — | 122 | — | 115 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 12 | ESE 10 | SE 11 | — | — | ESE 10 | — | — | — | — | — | — | — | S 8 | S 8 | — | — | — | — | — | — | — | — |
| kJ | 4 | 6 | 19 | 32 | — | — | 21 | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SE 3 | SE 3 | SE 4 | — | — | — | — | — | — | — | — | — | — | — | SSE 5 | SSE 5 | SSE 5 | S 6 | — | S 6 | — | S 6 | SSW 6 |
| kJ | — | 3 | 3 | 5 | — | — | — | — | — | — | — | — | — | — | — | 27 | 28 | 45 | 64 | — | 89 | — | 116 | 226 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 593 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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