Surf Forecasts:
Ikumi Beach surf forecast from 3 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 6AM (local time) - 10ft (3.0m), 17s period, ESE swell with cross-onshore winds.
- Most powerful swell: Thursday 6 Aug, 9PM (local time) - 21ft (6.5m), 17s period, SSE swell with 24,163 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 6AM (local time) - 10ft (3.0m), 17s period with ESE swell.
Best Forecast Surf Conditions for Ikumi Beach this week:
The surf forecast for Ikumi Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 04) at 6AM. The primary swell is predicted to be 3.0m and 17s period with a secondary swell of 2.5m and 17s. Another secondary swell of 0.9m and 21s is also forecast. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Ikumi Beach in the next 16 days are 6.5m 17s and forecast to arrive on Thursday (Aug 06) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 4th Aug) | 10ft (3.0m) 17s |
| Best Surf | 6AM (Tue 4th Aug) | 10ft (3.0m) 17s |
| Most Powerful | 9PM (Thu 6th Aug) | 21ft (6.5m) 17s |
Table - best surf conditions forecast for Ikumi Beach over the next 16 days.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon afternoon. Warm (max 30°C on Mon morning, min 25°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 43mm), heaviest during Sat afternoon. Warm (max 31°C on Thu afternoon, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | ESE 16 | ESE 16 | ESE 17 | ESE 16 | ESE 17 | ESE 17 | SE 17 | SE 17 | SE 16 | SE 17 | SSE 17 | SSE 17 | SSE 16 | S 15 | S 15 | SSW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1223 | 1393 | 2437 | 4324 | 8554 | 8569 | 12158 | 15328 | 16477 | 20742 | 22325 | 22995 | 17626 | 8891 | 8338 | 7092 | 5700 | 4971 | 4060 | 2593 | 1126 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 9:08PM1.85m | 9:33AM1.72m | 9:38PM1.80m | 10:30AM1.59m | 10:12PM1.75m | 11:49AM1.48m | 10:54PM1.69m | 1:46PM1.44m | 11:54PM1.64m | 3:40PM1.52m | 1:21AM1.61m | 4:41PM1.64m | 2:48AM1.66m | ||||||||
Low Tide | 2:55PM0.61m | 3:24AM0.63m | 3:29PM0.78m | 4:11AM0.63m | 4:06PM0.96m | 5:09AM0.65m | 4:51PM1.14m | 6:23AM0.65m | 6:05PM1.29m | 7:51AM0.60m | 8:11PM1.35m | 9:08AM0.51m | 9:44PM1.29m | ||||||||
 |  |  |  | |  | | |  | | |  |  | | |  | | | | | | |
 | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — |
 | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:55 | — |
mm | — | 1 | 3 | — | — | — | — | — | — | — | 2 | 3 | 2 | 3 | 5 | 9 | 11 | 8 | — | — | — |
Temp °C | 30 | 29 | 27 | 29 | 28 | 26 | 30 | 30 | 27 | 30 | 31 | 28 | 30 | 30 | 27 | 26 | 27 | 26 | 28 | 28 | 25 |
Feels °C | 33 | 34 | 32 | 32 | 31 | 30 | 31 | 32 | 29 | 30 | 31 | 29 | 31 | 30 | 29 | 28 | 29 | 28 | 28 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 16 | ESE 16 | ESE 17 | ESE 16 | ESE 17 | ESE 17 | SE 17 | SE 17 | SE 16 | SE 17 | SSE 17 | SSE 17 | SSE 16 | S 15 | S 15 | SSW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SE 8 |
| kJ | 1223 | 1393 | 2437 | 4324 | 6015 | 8569 | 12158 | 15328 | 16477 | 20742 | 22325 | 22995 | 17626 | 8891 | 8338 | 7092 | 5700 | 4971 | 4060 | 2593 | 456 |
Swell 2 Height (m) Direction Period (s) | SE 10 | S 8 | SE 12 | ESE 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 13 | ESE 12 | SSW 14 |
| kJ | 15 | 5 | 6 | 1802 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 123 | 160 | 1126 |
Swell 3 Height (m) Direction Period (s) | S 8 | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 12 |
| kJ | 5 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 225 |
Wind waves Height (m) Direction Period (s) | E 4 | ESE 6 | ESE 7 | E 9 | ESE 17 | — | — | — | — | — | — | — | E 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | SE 9 | ESE 9 | ESE 9 | — |
| kJ | 14 | 118 | 200 | 653 | 8554 | — | — | — | — | — | — | — | 1559 | 2804 | 1578 | 1131 | 1251 | 1374 | 1104 | 947 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 30 | 30 | 30 | 33 | 14 | 30 | 522 | 14 | 516 | 1706 | 471 | 1789 | 471 | 14 | 471 | 471 | 471 | 2063 | 1706 | 47 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ikumi Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Ikumi Beach Surf forecast
The above surf forecast table for Ikumi Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ikumi Beach can be found by selecting the local surf guide option on the grey menu. Our Ikumi Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Ikumi Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Ikumi Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Ikumi Beach is 30 km (19 miles) from Muroto. If you plan a holiday in Shikoku, look for hotels and other accommodation in Muroto. Muroto has rooms for a wide range of budgets as well as car hire and transport links.
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