Surf Forecasts:
Ikumi Beach surf forecast from 19 Aug 2026:
- Best quality surf: Monday 24 Aug, 9PM (local time) - 10ft (3.0m), 16s period, SE swell with glassy winds.
- Most powerful swell: Thursday 27 Aug, 12AM (local time) - 25ft (7.5m), 13s period, ESE swell with 19,402 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 12AM (local time) - 1.5ft (0.4m), 10s period with SE 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 Thursday (Aug 20) at 12AM. The primary swell is predicted to be 0.5m and 7s period with a secondary swell of 0.4m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ikumi Beach in the next 16 days are 7.5m 13s and forecast to arrive on Thursday (Aug 27) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 11s period and expected on Thursday (Aug 27) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 20th Aug) | 1.5ft (0.4m) 10s |
| Best Surf | 9PM (Mon 24th Aug) | 10ft (3.0m) 16s |
| Most Powerful | 12AM (Thu 27th Aug) | 25ft (7.5m) 13s |
Table - best surf conditions forecast for Ikumi Beach over the next 16 days.
Short Range ForecastLight rain (total 3mm), mostly falling on Fri afternoon. Warm (max 30°C on Sat afternoon, min 25°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 31°C on Tue afternoon, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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) | SE 10 | SE 10 | SE 10 | S 9 | S 9 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 9 | SE 15 | SE 17 | SE 16 | SE 17 | SE 16 | SE 16 | SE 17 | SE 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 29 | 25 | 25 | 99 | 127 | 145 | 108 | 110 | 82 | 55 | 88 | 233 | 1371 | 2140 | 3134 | 4467 | 7473 | 11651 | 14316 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-on | cross-off | glassy | cross | glassy | glassy | cross | glassy | glassy | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross |
High Tide | 9:27PM1.81m | 10:51AM1.55m | 10:01PM1.74m | 12:28PM1.45m | 10:49PM1.66m | 2:49PM1.47m | 00:11AM1.59m | 4:10PM1.59m | 2:01AM1.59m | 4:51PM1.70m | 3:24AM1.68m | 5:22PM1.79m | |||||||
Low Tide | 4:16AM0.59m | 4:02PM1.10m | 5:20AM0.63m | 4:54PM1.26m | 6:46AM0.65m | 6:52PM1.37m | 8:20AM0.60m | 9:07PM1.34m | 9:32AM0.51m | 10:12PM1.22m | 10:25AM0.41m | 10:53PM1.08m | |||||||
 |  | | |  |  | | | | | | | | | | | | |  | |
 | — | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — |
 | 6:45 | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — |
mm | — | — | — | — | — | 1 | — | — | 2 | — | — | — | — | — | — | — | — | — | 12 |
Temp °C | 26 | 29 | 29 | 26 | 29 | 29 | 26 | 29 | 30 | 27 | 30 | 30 | 26 | 29 | 29 | 26 | 30 | 31 | 28 |
Feels °C | 31 | 32 | 33 | 31 | 33 | 33 | 31 | 32 | 34 | 32 | 33 | 34 | 31 | 32 | 33 | 31 | 32 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | SE 10 | S 8 | S 9 | S 9 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 9 | SSW 9 | SE 17 | SE 16 | SE 17 | SE 16 | SE 16 | SE 17 | SE 16 |
| kJ | 29 | 25 | 21 | 99 | 127 | 145 | 108 | 110 | 82 | 55 | 88 | 96 | 1371 | 2140 | 3134 | 4467 | 7473 | 11651 | 14316 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 7 | SE 10 | SE 10 | SE 11 | ESE 11 | SE 11 | ESE 10 | SE 10 | ESE 10 | ESE 11 | SE 15 | SSW 9 | SSW 10 | SSW 11 | S 10 | E 15 | E 14 | E 14 |
| kJ | 25 | 11 | 25 | 28 | 29 | 44 | 29 | 43 | 17 | 10 | 39 | 233 | 64 | 86 | 91 | 44 | 38 | 16 | 89 |
Swell 3 Height (m) Direction Period (s) | SSW 8 | S 8 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | ESE 13 | SE 16 | ESE 11 | E 9 | E 18 | E 11 | E 12 | SW 9 | E 11 | — |
| kJ | 6 | 12 | 9 | 9 | 9 | 4 | 3 | 4 | 5 | 16 | 38 | 22 | 28 | 6 | 10 | 44 | 21 | 23 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 4 | 0 | 0 | 16 | 0 | 0 | 4 | 0 | 0 | 16 | 0 | 0 | 4 | 0 | 0 | 4 | 0 | 30 | 30 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
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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