
Surf Forecasts:
Ikumi Beach surf forecast from 24 Jul 2026:
- Best quality surf: Saturday 25 Jul, 12AM (local time) - 1ft (0.3m), 16s period, SE swell with cross-offshore 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★+): Saturday 25 Jul, 12AM (local time) - 1ft (0.3m), 16s 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 Saturday (Jul 25) at 12AM. The primary swell is predicted to be 0.3m and 16s period with a secondary swell of 0.4m and 11s. 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 0.4m 16s and forecast to arrive on Saturday (Jul 25) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (Jul 28) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 25th Jul) | 1ft (0.3m) 16s |
| Best Surf | 12AM (Sat 25th Jul) | 1ft (0.3m) 16s |
| 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
Alright, it’s Rusty here. Let’s break down what’s coming up for Ikumi Beach. The next 16 days start off pretty quiet, but there’s a big pulse of energy building for the second week that’s got my attention.
Right now, we’re in a flat spell. From Saturday the 25th of July right through to the end of the month, the swell is tiny. We’re talking ankle to knee-high waves around 1.0ft to 2ft. The good news is the wind is glassy on most mornings, so if you’re desperate for a paddle you’ll find clean, smooth water, but there’s hardly any push. The combined wave energy is weak, sitting between 37 and 174, so it’s really just a wobbly lake out there. The water temp is about average for the time of year, nothing wild.
That run of small surf continues into the first few days of August. Sunday the 2nd still has tiny 1ft waves, but look at Monday the 3rd – things start to wake up. The morning shows a jump to 3ft swell from the ESE with a nice 13-second period, and the combined energy hits 497. That’s moderate energy, and with glassy conditions, it’s finally surfable. The standout, though, comes on Tuesday the 4th. Tuesday morning delivers 8ft of ESE groundswell with a 17-second period and glassy wind. The energy is strong at 3498. This is excellent for experienced surfers – the long period means better shaped waves and clean lines, but it’s over 8ft, so beginners should sit this one out. The swell direction is from the ESE, which matches the optimum for this break.
The swell keeps building through Wednesday and Thursday, but it gets too big. On Wednesday morning the 5th, we’re looking at 13ft with the combined energy skyrocketing to 10862. That’s very strong, but it’s too much for this spot. Even with offshore wind, it’s only for the experts with big-wave guns. Thursday the 6th sees 18ft, and that’s just massive. Definitely not a paddle session.
By Friday the 7th, the swell drops to 10ft from the S in the morning, but the afternoon is the real gem. Friday afternoon shows 8ft from the S, with zero wind, glassy conditions, and energy at 1122. The wind is dead calm, so it’ll be like glass. That’s a solid option for experienced surfers again. Saturday the 8th keeps it going with 6ft from the SSW in the morning, glassy, and energy at 1425, easing to 6ft in the afternoon. Sunday the 9th caps it off with 5ft from the SSW, zero wind, glassy, and energy at 1067. That’s a clean, punchy SSW swell that’ll hold up well.
The one true standout in this whole window is Tuesday morning the 4th of August. That 8ft ESE groundswell with glassy conditions and a 17-second period is the best on offer. After that, Friday the 7th afternoon and Saturday the 8th morning are also excellent, but Tuesday is the pick. Crowds are often a factor at Ikumi, so expect company on those good days.
This is Rusty signing off.
Short Range ForecastLight rain (total 7mm), mostly falling on Mon afternoon. Warm (max 32°C on Sat morning, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Mon night. Warm (max 31°C on Tue morning, min 24°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||
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 16 | SE 16 | SE 16 | SE 16 | SE 15 | SE 15 | SE 14 | SE 14 | SE 14 | SE 14 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | SE 10 | SE 10 |
Wave Graph | |||||||||||||||||||
42 | 91 | 90 | 87 | 78 | 76 | 74 | 72 | 70 | 65 | 49 | 49 | 48 | 48 | 48 | 38 | 36 | 23 | 23 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | glassy | glassy | glassy | cross-off | glassy | glassy | off | glassy | cross | glassy | glassy | cross-on | cross-off | glassy | cross-on | glassy |
High Tide | 1:04AM1.64m | 4:14PM1.58m | 2:19AM1.65m | 5:07PM1.68m | 3:26AM1.71m | 5:45PM1.78m | 4:23AM1.79m | 6:19PM1.84m | 5:12AM1.87m | 6:49PM1.89m | 5:57AM1.93m | 7:18PM1.91m | |||||||
Low Tide | 8:44AM0.52m | 9:06PM1.29m | 9:47AM0.40m | 10:15PM1.24m | 10:39AM0.30m | 11:05PM1.16m | 11:23AM0.22m | 11:45PM1.06m | 12:03PM0.18m | 00:21AM0.96m | 12:39PM0.19m | 00:56AM0.86m | |||||||
— | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | |
7:08 | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — | |
mm | — | — | 1 | — | — | 2 | 1 | — | 3 | 1 | — | 1 | — | 1 | 1 | — | — | — | — |
Temp °C | 29 | 32 | 32 | 29 | 31 | 30 | 28 | 31 | 30 | 27 | 31 | 31 | 28 | 31 | 31 | 27 | 30 | 30 | 26 |
Feels °C | 34 | 36 | 36 | 34 | 35 | 36 | 33 | 35 | 35 | 32 | 34 | 35 | 32 | 35 | 34 | 31 | 33 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 11 | S 8 | S 8 | S 9 | S 8 | SE 10 | SE 10 | SE 10 | SE 10 | S 8 | ESE 10 | ESE 10 | SE 10 | SE 10 |
41 | 40 | 36 | 48 | 50 | 55 | 50 | 50 | 55 | 51 | 49 | 49 | 48 | 48 | 33 | 38 | 36 | 23 | 23 | |
Swell 2 Height (m) Direction Period (s) | SE 16 | SE 16 | SE 16 | SE 16 | SE 15 | S 9 | SE 14 | SE 10 | SE 10 | SE 10 | S 8 | S 8 | SSW 5 | SSW 8 | SE 10 | SSW 6 | SSW 5 | SSW 7 | SSW 7 |
42 | 91 | 90 | 87 | 78 | 39 | 74 | 51 | 50 | 50 | 36 | 35 | 8 | 22 | 48 | 10 | 5 | 11 | 10 | |
Swell 3 Height (m) Direction Period (s) | S 7 | S 8 | NE 3 | SSW 8 | S 9 | SE 15 | SE 11 | SE 14 | SE 14 | SE 14 | SE 14 | SE 13 | SSW 8 | SSW 5 | SE 13 | SSW 8 | SSW 8 | SE 12 | SE 12 |
4 | 5 | 2 | 11 | 26 | 76 | 40 | 72 | 70 | 65 | 29 | 28 | 22 | 8 | 26 | 12 | 11 | 6 | 6 | |
Wind waves Height (m) Direction Period (s) | SW 4 | NNE 3 | NNE 3 | WSW 3 | NNE 3 | NNE 3 | WSW 2 | NNE 3 | — | — | — | SSW 4 | — | — | — | — | NNE 2 | — | NNE 2 |
3 | 1 | 3 | 2 | 3 | 2 | 1 | 1 | — | — | — | 1 | — | — | — | — | 1 | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 4 | 0 | 0 | 593 | 16 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










