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Surf Forecasts:
Ikumi Beach surfForecast / Shikoku / Japan
16 Day Weather and Surf, issued 2 am Tuesday 21 Apr 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
19.0° C
(Which is normal for this time of year)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 (Apr 21) at 9PM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.3m and 15s. Another secondary swell of 0.7m 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 2.5m 8s and forecast to arrive on Monday (Apr 27) at 3PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Friday (Apr 24) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Tue 21st Apr) | 3ft (0.9m) 11s |
| Best Surf | 3PM (Mon 27th Apr) | 8ft (2.5m) 8s |
| Most Powerful | 3PM (Mon 27th Apr) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Ikumi Beach over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 36mm), heaviest during Thu morning. Warm (max 21°C on Tue afternoon, min 11°C on Thu morning). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 60mm), heaviest during Sun night. Very mild (max 19°C on Sat morning, min 11°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 12 | 11 | 11 | 10 | 10 | 10 | 9 | 13 | 8 | 8 | 8 | 7 | 12 | 12 | 11 | 5 | 6 | 7 | 8 | 8 | 8 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 560 | 280 | 202 | 108 | 104 | 70 | 61 | 60 | 245 | 96 | 98 | 40 | 23 | 21 | 19 | 19 | 92 | 372 | 545 | 866 | 169 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross- off | glass | on | glass | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- on | cross- on | cross- off | on | on | cross- on | cross- off | glass | off |
High Tide / height (m) | 9:09PM 1.51 | 7:57AM 1.59 | 10:06PM 1.41 | 8:36AM 1.49 | 11:20PM 1.34 | 9:32AM 1.37 | 12:51AM 1.33 | 11:12AM 1.27 | 2:05AM 1.37 | 1:17PM 1.27 | 2:53AM 1.44 | 2:45PM 1.38 | |||||||||
Low Tide / height (m) | 2:18PM 0.05 | 2:25AM 0.90 | 3:03PM 0.16 | 3:09AM 0.99 | 3:57PM 0.29 | 4:17AM 1.06 | 5:09PM 0.41 | 6:14AM 1.05 | 6:40PM 0.49 | 7:58AM 0.93 | 8:02PM 0.51 | 8:57AM 0.75 | 9:05PM 0.51 | ||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
| Sunrise | 5:26 | - | - | 5:24 | - | - | 5:24 | - | - | 5:22 | - | - | 5:20 | - | - | 5:20 | - | - | 5:18 | - | - |
| Sunset | - | 6:37 | - | - | 6:37 | - | - | 6:38 | - | - | 6:38 | - | - | 6:39 | - | - | 6:40 | - | - | 6:42 | - |
 |  |  | |  |  |  |  | | | | | | | | | |  |  | | | |
Rain (mm) | - | - | - | - | - | 3 | 20 | 10 | 3 | - | - | - | - | - | 3 | 6 | 7 | 44 | 11 | - | - |
| Temp. °C | 20 | 21 | 15 | 19 | 19 | 17 | 12 | 12 | 14 | 15 | 17 | 15 | 19 | 18 | 17 | 18 | 17 | 16 | 18 | 21 | 16 |
| Feels °C (?) | 20 | 15 | 12 | 16 | 17 | 16 | 9 | 9 | 13 | 14 | 14 | 13 | 16 | 15 | 16 | 17 | 14 | 12 | 19 | 21 | 14 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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