Surf Forecasts:
Ikumi Beach surf forecast from 11 Sep 2026:
- Best quality surf: Monday 14 Sep, 3AM (local time) - 4ft (1.2m), 8s period, SE swell with glassy winds.
- Most powerful swell: Friday 18 Sep, 3PM (local time) - 5.5ft (1.7m), 19s period, SE swell with 1,967 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 3AM (local time) - 3.5ft (1.0m), 7s period with S 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 Saturday (Sep 12) at 3AM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.3m and 10s. Another secondary swell of 0.3m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Ikumi Beach in the next 16 days are 1.7m 19s and forecast to arrive on Friday (Sep 18) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Thursday (Sep 17) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sat 12th Sep) | 3.5ft (1.0m) 7s |
| Best Surf | 3AM (Mon 14th Sep) | 4ft (1.2m) 8s |
| Most Powerful | 3PM (Fri 18th Sep) | 5.5ft (1.7m) 19s |
Table - best surf conditions forecast for Ikumi Beach over the next 16 days.
Short Range ForecastModerate rain (total 10mm), heaviest on Sat afternoon. Warm (max 28°C on Fri afternoon, min 24°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 31mm), heaviest during Wed morning. Warm (max 29°C on Mon morning, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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) | SSE 7 | SSE 7 | S 7 | S 7 | S 7 | E 14 | SE 9 | SE 9 | SE 8 | SE 8 | ESE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | ESE 9 | SE 9 | SE 9 | SE 8 | ESE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 114 | 167 | 127 | 45 | 34 | 35 | 40 | 81 | 180 | 135 | 135 | 170 | 216 | 186 | 225 | 135 | 132 | 145 | 110 | 67 | 126 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | cross-on | glassy | glassy | cross-on | glassy | glassy | cross-on | off | glassy | glassy | glassy | cross-on | cross-on | glassy | glassy | glassy | cross-off |
High Tide | 6:07PM1.91m | 6:07AM2.02m | 6:32PM1.94m | 6:45AM2.04m | 6:56PM1.95m | 7:23AM2.02m | 7:21PM1.95m | 8:01AM1.94m | 7:45PM1.92m | 8:43AM1.83m | 8:12PM1.88m | 9:30AM1.70m | 8:41PM1.81m | ||||||||
Low Tide | 11:51AM0.38m | 00:02AM0.61m | 12:23PM0.42m | 00:34AM0.49m | 12:54PM0.50m | 1:06AM0.40m | 1:24PM0.61m | 1:39AM0.36m | 1:53PM0.74m | 2:15AM0.36m | 2:23PM0.88m | 2:54AM0.40m | 2:54PM1.03m | ||||||||
 |  |  |  | |  | |  |  | | | |  | |  | | | | | | | |
 | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — |
 | — | 6:15 | — | — | 6:14 | — | — | 6:13 | — | — | 6:12 | — | — | 6:09 | — | — | 6:08 | — | — | 6:07 | — |
mm | 2 | 2 | — | — | 2 | — | 1 | — | 3 | — | — | 3 | 3 | 3 | 2 | 5 | 7 | 8 | 1 | 1 | — |
Temp °C | 26 | 28 | 25 | 27 | 26 | 25 | 28 | 28 | 25 | 29 | 28 | 26 | 24 | 25 | 24 | 26 | 26 | 24 | 27 | 26 | 24 |
Feels °C | 29 | 31 | 29 | 30 | 31 | 30 | 33 | 32 | 30 | 32 | 31 | 30 | 28 | 30 | 28 | 30 | 30 | 29 | 31 | 30 | 27 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSE 7 | S 7 | S 7 | S 7 | S 7 | SE 9 | SE 9 | SE 8 | SE 8 | ESE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 | ESE 9 | SE 9 | SE 9 | SE 8 | SSE 9 |
| kJ | 114 | 167 | 127 | 45 | 34 | 15 | 40 | 81 | 180 | 135 | 135 | 170 | 216 | 186 | 225 | 135 | 132 | 145 | 110 | 67 | 7 |
Swell 2 Height (m) Direction Period (s) | E 15 | E 14 | ESE 10 | SE 10 | SE 10 | ESE 10 | SE 4 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | E 13 | E 13 | S 5 | SSW 5 | E 13 | E 12 | SSE 9 | SE 22 |
| kJ | 17 | 15 | 19 | 24 | 25 | 35 | 3 | 31 | 13 | 13 | 12 | 12 | 11 | 14 | 12 | 5 | 2 | 3 | 3 | 8 | 19 |
Swell 3 Height (m) Direction Period (s) | SE 11 | E 14 | E 14 | E 13 | E 14 | E 14 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 6 | S 6 | S 7 | E 12 | E 13 | E 13 | S 7 | E 12 | E 12 |
| kJ | 5 | 15 | 36 | 32 | 32 | 35 | 8 | 8 | 4 | 4 | 4 | 1 | 1 | 1 | 1 | 3 | 4 | 3 | 1 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | NNE 3 | NE 4 | NNE 3 | NE 4 | NE 3 | SE 4 | — | SE 4 | — | — | — | — | — | — | SSE 5 | — | — | — | NNE 2 | NE 3 | ESE 6 |
| kJ | 4 | 8 | 1 | 3 | 2 | 8 | — | 8 | — | — | — | — | — | — | 33 | — | — | — | 1 | 1 | 126 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 8 | 8 | 8 | 8 | 30 | 0 | 0 | 4 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 8 | 33 | 0 | 0 | 0 | 0 |
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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