Ikumi Beach Surf Break

Lat Long: 33.53° N 134.28° E

Ikumi Beach Surf Forecast and Surf Report

Issued: 8 am 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Ikumi Beach sea temperature is
28.4° C
1.0° 

Ikumi Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Ikumi Beach surf forecast from 30 Jul 2026:

  • Best quality surf: Tuesday 4 Aug, 9AM (local time) - 10ft (3.0m), 17s period, ESE swell with onshore winds.
  • Most powerful swell: Thursday 6 Aug, 3PM (local time) - 26ft (8.0m), 18s period, SE swell with 41,040 kJ wave energy.
  • Next surfable swell (1★+): Thursday 30 Jul, 9PM (local time) - 1.5ft (0.4m), 10s 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 Thursday (Jul 30) at 9PM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.3m and 7s. 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 8.0m 18s and forecast to arrive on Thursday (Aug 06) 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 0.5m 5s period and expected on Thursday (Jul 30) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Thu 30th Jul)1.5ft (0.4m) 10s
Best Surf 9AM (Tue 4th Aug)10ft (3.0m) 17s
Most Powerful 3PM (Thu 6th Aug)26ft (8.0m) 18s

Table - best surf conditions forecast for Ikumi Beach over the next 16 days.


The Lowdown

Alright folks, Rusty here with a look at the upcoming swell window for our patch.

First up, we've got a quiet start with some tiny, weak waves. The water is sitting at 83.1°, which is about a degree and a half warmer than usual for this time of year – a nice little bonus if you're just going for a splash. Thursday the 30th and Friday the 31st are mostly a write-off with tiny, gutless surf and poor conditions. Saturday the 1st of August is much the same, glassy but with hardly any energy to push a wave. It’s a bit of a flat spell to kick things off.

Now, things start to get interesting late on Sunday the 2nd. We see a pulse of swell arriving from the ESE, building through the day. Sunday morning looks promising with clean, glassy conditions and waist-high waves, the energy is moderate (287) but that long period of 14 seconds means proper ground swell. By Sunday afternoon that swell jumps up to a clean 3.3ft with a very long 16-second period, but it turns onshore, so the quality might get a bit iffy. Monday the 3rd sees the swell really ramp up, hitting 5.6ft in the morning and 6.9ft in the afternoon with a huge 17-second period. The wave energy is now very strong (2,385), but it stays onshore and the size is getting too much for the lineup here.

The real standout, and the best waves we’ll see for a while, is Tuesday the 4th of August. Morning brings a solid 9.8ft of ESE groundswell with that super long 17-second period and glassy conditions. The energy is massive (4,498!). But honestly, this is a beast. At 9.8ft, this is expert territory only – way too big for beginners and a serious handful for anyone else. The afternoon stays big but picks up an onshore breeze.

That massive swell continues to roar through Wednesday the 5th and Thursday the 6th with waves up to 26.2ft. The energy numbers are astronomically high (37,604 on Thursday morning), but it’s all cross-onshore and lumpy. This isn't a paddle situation; the setup here looks a lot more like a kite-surfing dream than a surfer’s paradise. It starts to ease a bit from Friday the 7th onward but stays big and messy, fully blown out by fresh winds.

After that wild week, the final few days from Sunday the 9th through to the end of the forecast see the swell drop back down to a more manageable 3.3ft to 8.2ft range. The period shortens up a bit, but we do get some clean, glassy windows. The morning of Tuesday the 11th of August is worth a mention with a clean 4.6ft S swell and glassy conditions. Also, keep an eye on the morning of Friday the 14th of August: a 4.3ft ESE swell with a nice 13-second period and glassy winds – that looks like another solid window for a session. It’s inconsistent and often crowded out here, but when it cleans up on those glassy mornings, it can be worth the paddle.

Stay safe out there.

Short Range Forecast

Mostly dry. Warm (max 32°C on Thu morning, min 28°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Tue morning. Warm (max 33°C on Sun morning, min 26°C on Tue night). Wind will be generally light.

Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
1
0
1
0
0
1
2
2
3
3
3
4
!
!
!
!
!
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
9
0.3
SE
13
0.4
SE
10
0.4
SE
10
0.4
SE
11
0.4
SE
16
0.5
ESE
18
1.1
ESE
16
1.3
ESE
15
1.7
ESE
16
2
ESE
17
2.5
ESE
18
3
ESE
17
3
ESE
17
4
ESE
17
4.5
SE
17
5.5
SE
18
6.5
SE
18
Wave Graph
Metric surfscale
Energy kJ
23
23
23
24
26
23
28
29
64
174
612
776
1608
2251
3777
4358
5406
8772
10814
17650
28080
Wind (km/h)
5
E
5
SSE
5
NNW
5
SE
10
SSE
5
NW
5
ESE
5
SE
5
NW
5
ENE
5
ESE
5
N
10
ENE
10
ESE
5
E
5
ESE
5
ESE
5
NE
15
ENE
15
E
15
NE
Wind State
cross-on
cross-on
glassy
glassy
cross-on
glassy
glassy
cross-on
off
glassy
on
cross-off
cross-on
on
cross-on
on
on
glassy
cross-on
cross-on
cross
High Tide
7:18PM1.91m
6:39AM1.96m
7:45PM1.91m
7:20AM1.96m
8:12PM1.90m
8:02AM1.91m
8:40PM1.88m
8:45AM1.83m
9:08PM1.85m
9:33AM1.72m
9:38PM1.80m
10:30AM1.59m
10:12PM1.75m
Low Tide
12:39PM0.19m
00:56AM0.86m
1:15PM0.23m
1:30AM0.78m
1:49PM0.33m
2:06AM0.71m
2:22PM0.45m
2:43AM0.66m
2:55PM0.61m
3:24AM0.63m
3:29PM0.78m
4:11AM0.63m
4:06PM0.96m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
thunderstorm
thunderstorm
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:13
5:13
5:15
5:15
5:16
5:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
7:04
7:02
7:01
7:00
7:00
7:00
 mm
2
2
Temp °C
32
32
29
32
32
28
32
32
29
33
33
30
31
30
27
29
28
27
30
30
27
Feels °C
35
36
34
35
36
33
35
36
33
37
37
35
35
34
33
34
33
32
32
33
30
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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