Surf Forecasts:
Ikumi Beach surf forecast from 18 Jul 2026:
- Best quality surf: Sunday 19 Jul, 3AM (local time) - 1.5ft (0.4m), 10s period, ESE swell with glassy winds.
- Most powerful swell: Saturday 25 Jul, 3AM (local time) - 1.5ft (0.4m), 16s period, SE swell with 94 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 3AM (local time) - 1.5ft (0.4m), 10s 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 Sunday (Jul 19) at 3AM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.4m and 8s. 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 0.4m 16s and forecast to arrive on Saturday (Jul 25) at 3AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Jul 21) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 19th Jul) | 1.5ft (0.4m) 10s |
| Best Surf | 3AM (Sun 19th Jul) | 1.5ft (0.4m) 10s |
| Most Powerful | 3AM (Sat 25th Jul) | 1.5ft (0.4m) 16s |
Table - best surf conditions forecast for Ikumi Beach over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s talk about the next 16 days at Ikumi Beach. Honestly, it’s
Short Range ForecastLight rain (total 4mm), mostly falling on Sat afternoon. Warm (max 30°C on Sat morning, min 26°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Tue afternoon. Warm (max 32°C on Thu morning, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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 9 | E 9 | SE 8 | ESE 9 | ESE 10 | SE 9 | ESE 9 | ESE 11 | SSE 8 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | SE 9 | SE 10 | SE 18 | SE 18 | SE 18 | SE 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 15 | 13 | 24 | 17 | 18 | 20 | 31 | 12 | 14 | 11 | 22 | 22 | 22 | 11 | 11 | 14 | 25 | 50 | 49 | 49 | 42 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | glassy | cross-on | cross-off | cross | cross | off | glassy | cross | off | glassy | cross | off | glassy | cross | off | glassy | cross | glassy |
High Tide | 8:47PM1.85m | 8:29AM1.81m | 9:18PM1.81m | 9:18AM1.72m | 9:50PM1.78m | 10:13AM1.61m | 10:24PM1.73m | 11:23AM1.50m | 11:05PM1.69m | 12:59PM1.44m | 11:56PM1.65m | 2:51PM1.48m | 1:04AM1.64m | ||||||||
Low Tide | 2:17PM0.33m | 2:38AM0.78m | 2:53PM0.47m | 3:20AM0.74m | 3:30PM0.64m | 4:08AM0.71m | 4:09PM0.81m | 5:03AM0.69m | 4:54PM0.99m | 6:11AM0.66m | 5:55PM1.16m | 7:28AM0.61m | 7:28PM1.27m | ||||||||
 |  |  |  | |  | | | | | | | | | | | | | | | | |
 | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — |
 | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — |
mm | — | 2 | 1 | — | — | — | — | 1 | — | 1 | 3 | 1 | — | 2 | 1 | — | 2 | 1 | — | 3 | 3 |
Temp °C | 30 | 30 | 27 | 30 | 30 | 27 | 30 | 30 | 27 | 30 | 30 | 27 | 30 | 31 | 27 | 32 | 31 | 27 | 31 | 31 | 27 |
Feels °C | 34 | 35 | 33 | 34 | 34 | 33 | 34 | 34 | 32 | 35 | 35 | 32 | 35 | 36 | 32 | 36 | 35 | 32 | 36 | 35 | 32 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | SE 8 | SE 8 | ESE 5 | SE 5 | ESE 9 | ESE 9 | ESE 7 | S 3 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | SE 9 | SE 10 | SE 10 | SE 9 | SE 18 | SE 11 |
| kJ | 15 | 11 | 24 | 9 | 6 | 15 | 31 | 10 | 2 | 11 | 22 | 22 | 22 | 11 | 11 | 14 | 25 | 16 | 31 | 49 | 42 |
Swell 2 Height (m) Direction Period (s) | SE 9 | E 9 | ESE 3 | ESE 9 | ESE 10 | SE 4 | SSE 9 | SSE 8 | ESE 7 | ESE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | E 10 | SSW 8 | SSE 8 | SE 18 | SE 9 | ESE 4 |
| kJ | 13 | 13 | 1 | 17 | 18 | 4 | 7 | 7 | 9 | 4 | 6 | 6 | 6 | 6 | 6 | 8 | 6 | 7 | 49 | 14 | 3 |
Swell 3 Height (m) Direction Period (s) | SSW 7 | SSW 6 | E 9 | SE 8 | SE 8 | SE 9 | ESE 12 | ESE 11 | SSE 8 | SSE 8 | ESE 6 | ESE 6 | ESE 6 | SE 6 | SE 11 | SSW 8 | SE 19 | SE 18 | S 7 | ESE 11 | SE 16 |
| kJ | 4 | 4 | 7 | 10 | 9 | 20 | 14 | 12 | 14 | 7 | 4 | 4 | 4 | 1 | 4 | 6 | 15 | 50 | 4 | 13 | 42 |
Wind waves Height (m) Direction Period (s) | ESE 3 | SE 4 | SE 3 | — | — | SSE 5 | S 3 | S 3 | SSW 3 | SW 3 | SSW 8 | SSW 3 | — | — | — | N 3 | NNE 3 | — | ESE 3 | ESE 4 | SE 3 |
| kJ | 1 | 3 | 1 | — | — | 7 | 1 | 1 | 4 | 1 | 6 | 1 | — | — | — | 3 | 2 | — | 1 | 6 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 55 | 338 | 55 | 16 | 16 | 0 | 16 | 16 | 16 | 16 | 338 | 16 | 16 | 597 | 276 | 276 | 953 | 0 | 0 | 4 | 0 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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