Surf Forecasts:
Ikumi Beach surf forecast from 14 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 6PM (local time) - 2.5ft (0.8m), 9s period, SSW swell with glassy winds.
- Most powerful swell: Tuesday 14 Jul, 3PM (local time) - 3ft (0.9m), 10s period, SSW swell with 157 kJ wave energy.
- Next surfable swell (1★+): Tuesday 14 Jul, 6PM (local time) - 2.5ft (0.8m), 9s period with SSW 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 (Jul 14) at 6PM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.4m and 12s. 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 0.9m 10s and forecast to arrive on Tuesday (Jul 14) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 7s period and expected on Wednesday (Jul 15) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Tue 14th Jul) | 2.5ft (0.8m) 9s |
| Best Surf | 6PM (Tue 14th Jul) | 2.5ft (0.8m) 9s |
| Most Powerful | 3PM (Tue 14th Jul) | 3ft (0.9m) 10s |
Table - best surf conditions forecast for Ikumi Beach over the next 16 days.
The Lowdown
Alright, Rusty here again, but I’ll run through it in feet and miles.
So, for Ikumi Beach, the outlook is mostly a long flat spell. There’s not much happening for the first week and a half. You’re looking at a real slow patch from the 14th all the way through to late on the 24th. Barely a ripple worth paddling for.
The only early glimmer comes on Tuesday morning, July 14th. A small 3ft swell from the SSW with a 10-second period, giving moderate energy (247). Water temp is 78°F, a touch cooler than normal for this time of year. The wind is glassy, light at 3 mph from the SSE. That clean, small surf will be the best you get for ages, but it’s gone by afternoon when the wind shifts and the quality drops out.
Then it’s days of tiny, weak surf – 1ft or 1ft crap, even when the wind goes glassy on Saturday, July 20th morning or Tuesday, July 21st morning, the waves are just too small to ride properly. Energy readings are pathetic, down in the teens and twenties.
Then, the end of the run shows a pulse. Sunday, July 26th morning brings 2ft from the E, but with a very long 15-second period and energy of 224. Wind is glassy at 3 mph from the ESE. That long period groundswell will give some shape despite the small size.
The real standout is Monday, July 27th. The morning has 4ft from the ESE with a 15-second period and energy of 762. By afternoon it builds to 4ft, 16-second period, energy of 1039. That’s strong, clean-ish surf with light onshore winds. Best session of the whole forecast.
Wednesday, July 29th, it gets too big. Morning has 8ft with a 17-second period and energy at 4424, and afternoon goes to 10ft with an 18-second period and energy of 7121. That’s expert-only territory. Too much power for this spot. Leave it for the pros.
So, a long dry gap, a couple of small glassy windows, and one big, powerful pulse at the very end. Keep your expectations low.
- Rusty
Short Range ForecastMostly dry. Warm (max 32°C on Tue morning, min 27°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 31°C on Sat afternoon, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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) | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SE 10 | SE 10 | SE 10 | ESE 9 | SE 8 | ESE 9 | SE 8 | ESE 9 | SE 8 | SE 8 | SE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 209 | 157 | 86 | 84 | 84 | 76 | 98 | 43 | 48 | 37 | 18 | 15 | 33 | 54 | 33 | 25 | 16 | 16 | 25 | 18 | 17 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | cross-on | cross | glassy | on | cross-on | glassy | glassy | on | glassy | on | cross-on | glassy | cross-on | cross | cross-off | on | glassy | cross-off |
High Tide | 6:44PM1.85m | 5:35AM1.87m | 7:16PM1.87m | 6:19AM1.90m | 7:47PM1.88m | 7:02AM1.91m | 8:17PM1.87m | 7:45AM1.88m | 8:47PM1.85m | 8:29AM1.81m | 9:18PM1.81m | 9:18AM1.72m | 9:50PM1.78m | ||||||||
Low Tide | 11:48AM0.14m | 00:09AM1.05m | 12:28PM0.12m | 00:46AM0.98m | 1:05PM0.15m | 1:23AM0.90m | 1:41PM0.22m | 2:00AM0.83m | 2:17PM0.33m | 2:38AM0.78m | 2:53PM0.47m | 3:20AM0.74m | 3:30PM0.64m | ||||||||
 | |  | |  | | | | | | |  | | | | | | | |  |  | |
 | 5:01 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — |
 | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 |
Temp °C | 32 | 31 | 28 | 31 | 32 | 28 | 31 | 31 | 28 | 30 | 30 | 27 | 30 | 31 | 27 | 31 | 31 | 27 | 31 | 31 | 28 |
Feels °C | 36 | 35 | 33 | 35 | 36 | 33 | 35 | 36 | 33 | 33 | 34 | 32 | 33 | 34 | 32 | 35 | 35 | 32 | 36 | 37 | 33 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SW 6 | SE 10 | ESE 9 | SE 8 | ESE 9 | SE 8 | ESE 9 | SE 8 | SE 8 | SE 8 |
| kJ | 209 | 157 | 86 | 84 | 84 | 76 | 98 | 43 | 48 | 37 | 18 | 10 | 33 | 54 | 33 | 25 | 16 | 16 | 25 | 18 | 17 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 11 | ESE 11 | ESE 10 | SE 11 | SE 10 | SSW 8 | ESE 10 | ESE 10 | SE 10 | SE 10 | SW 6 | SW 6 | SW 6 | SE 8 | SW 6 | SW 5 | SSW 6 | SW 6 | SW 6 |
| kJ | 36 | 36 | 31 | 44 | 43 | 18 | 16 | 19 | 18 | 18 | 15 | 14 | 9 | 9 | 9 | 17 | 8 | 7 | 3 | 9 | 9 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 10 | SE 11 | ESE 10 | ESE 9 | ESE 10 | SE 10 | SE 10 | E 9 | E 9 | E 9 | SSW 7 | ESE 10 | SW 6 | ESE 9 | SE 8 | ESE 12 | ESE 11 | ESE 11 |
| kJ | 2 | 2 | 15 | 17 | 18 | 18 | 17 | 18 | 15 | 14 | 15 | 15 | 15 | 5 | 10 | 5 | 15 | 9 | 14 | 13 | 12 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NNE 3 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 16 | 0 | 30 | 4 | 0 | 30 | 33 | 0 | 0 | 16 | 16 | 16 | 16 | 0 | 8 | 16 | 233 | 16 | 16 | 280 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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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