Ikumi Beach Surf Break

Lat Long: 33.53° N 134.28° E

Ikumi Beach Surf Forecast and Surf Report

Issued: 8 am 09 Jul 2026 (local time)

Forecast update in  hr  min

Today's Ikumi Beach sea temperature is
24.7° C
1.5° 

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 9 Jul 2026:

  • Best quality surf: Thursday 9 Jul, 3PM (local time) - 10ft (3.0m), 15s period, SSE swell with cross-onshore winds.
  • Most powerful swell: Saturday 11 Jul, 6AM (local time) - 13ft (4.0m), 18s period, S swell with 10,388 kJ wave energy.
  • Next surfable swell (1★+): Thursday 9 Jul, 3PM (local time) - 10ft (3.0m), 15s period with SSE 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 09) at 3PM. The primary swell is predicted to be 3.0m and 15s period with a secondary swell of 0.6m and 8s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Ikumi Beach in the next 16 days are 4.0m 18s and forecast to arrive on Saturday (Jul 11) at 6AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 14s period and expected on Monday (Jul 13) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Thu 9th Jul)10ft (3.0m) 15s
Best Surf 3PM (Thu 9th Jul)10ft (3.0m) 15s
Most Powerful 6AM (Sat 11th Jul)13ft (4.0m) 18s

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


Alright folks, Rusty here. Let’s have a look at what’s coming up for Ikumi Beach over the next couple of weeks.

Right off the bat, we’ve got a bit of a wait. The first few days are all about building swell, but it’s just too much of a good thing. Thursday the 9th through Sunday the 12th is pumping, with swell heights climbing from 8 ft up to a solid 13 ft and the combined energy readings sitting in the thousands (3506 to 10208). That’s strong to very strong wave energy. The period is long, 15 to 18 seconds, which is proper groundswell. But for Ikumi Beach, it’s simply too big. The wind is mostly light and cross-onshore, so it’s not totally blown out, but the size means this is only for experts. The water temperature is 77°F, which is a bit colder than normal for this time of year.

The real standout comes on Sunday the 12th afternoon. The swell drops to a more manageable 8 ft from the SSW with a 14-second period, and the wind goes clean with a light cross-offshore breeze. The combined energy is still a solid 2325. This is the best bet for experienced surfers in the first week. Before that, Saturday the 11th morning has glassy conditions but 13 ft swell – that’s a big, powerful animal only for the brave.

After that, we get a nice reset. Monday the 13th morning is a gem: 5 ft of SSW swell, 12-second period, and the wind is glassy, completely calm. Combined energy is 694, which is moderate, but the quality is there. The water is still a bit colder than average. This is a great window for intermediate surfers. Monday afternoon and Tuesday the 14th morning stay small and glassy, with 4 ft and 3 ft respectively, but the energy drops off.

Then we hit a long, flat spell. From Tuesday the 14th afternoon all the way through Saturday the 18th, the swell dips below 3 ft, with pathetic energy readings (74 to 161). The wind is mostly onshore or cross-onshore. It’s a dead zone for surfing. A few days of nothing.

The next flicker of life comes on Sunday the 19th, with 6 ft ESE swell and a 13-second period, but the wind is onshore, so it’s marginal. The real return to form is Monday the 20th morning. The swell jumps to 8 ft from the SE, 14-second period, and it’s glassy. The energy is 2204, which is strong. This is excellent for experienced surfers. It gets bigger again Monday afternoon and Tuesday the 21st, but that’s back into the too-big range for this spot.

The end of the period, Wednesday the 22nd through Friday the 24th, shows a mix of small, clean glassy mornings and afternoons with cross-shore wind. The swells are 4 ft to 6 ft, but the periods are shorter (8 to 12 seconds) and the energy is moderate. Nothing special, but a few small windows for a log or a fun board.

So, to wrap it up: the best on offer is Sunday the 12th afternoon for the experienced crew, and Monday the 13th morning for the all-rounders. The second week is a bit of a gamble with a promising but uncertain Monday the 20th. Keep an eye on the wind.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Thu morning, min 23°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 14mm), heaviest on Mon afternoon. Warm (max 30°C on Sun morning, min 25°C on Sun night). Wind will be generally light.

Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
!
!
!
!
!
!
!
!
!
4
4
3
2
2
2
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
SSE
15
3
SSE
15
3
SSE
15
3.5
S
17
3.5
S
16
4
S
17
4
S
17
4
SSW
18
4
SSW
17
3
SSW
16
2.4
SSW
14
1.8
SSW
13
1.6
SSW
12
1.1
S
11
1.2
SSW
11
1
S
10
0.8
SSW
10
0.7
SSW
9
0.6
SSW
9
0.6
SSW
9
0.5
ESE
9
Wave Graph
Metric surfscale
Energy kJ
3009
3513
3640
6993
7220
9483
9878
10208
8777
4548
2318
1110
669
279
350
204
131
88
64
61
48
Wind (km/h)
5
SE
10
SE
5
NNW
5
ESE
10
SE
5
WSW
5
SE
10
S
5
W
5
SW
5
SW
5
W
0
WNW
5
S
5
N
5
ESE
5
SE
0
SSE
5
SE
5
SE
5
N
Wind State
on
cross-on
cross-off
on
cross-on
glassy
glassy
cross
cross-off
cross-off
cross-off
glassy
glassy
glassy
cross-off
glassy
cross-on
glassy
on
on
glassy
High Tide
2:09PM1.45m
1:03AM1.64m
3:37PM1.53m
2:04AM1.65m
4:41PM1.63m
3:04AM1.70m
5:29PM1.72m
3:59AM1.75m
6:09PM1.80m
4:49AM1.82m
6:44PM1.85m
5:35AM1.87m
7:16PM1.87m
Low Tide
7:11PM1.13m
8:25AM0.53m
8:35PM1.20m
9:27AM0.41m
9:47PM1.21m
10:19AM0.29m
10:43PM1.17m
11:06AM0.20m
11:28PM1.12m
11:48AM0.14m
00:09AM1.05m
12:28PM0.12m
00:46AM0.98m
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
thunderstorm
light rain
thunderstorm
rain showers
rain showers
rain showers
part cloud
part cloud
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:58
5:00
5:00
5:01
5:01
5:01
5:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:15
7:15
7:14
7:14
7:13
 mm
4
1
4
1
1
3
1
Temp °C
27
27
24
27
27
25
27
27
25
30
29
26
27
28
26
28
28
26
27
27
25
Feels °C
30
30
27
30
31
30
31
30
29
34
33
31
32
33
31
32
33
32
31
31
30
  • Map Icons:
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  • 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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