Ikumi Beach Surf Break

Lat Long: 33.53° N 134.28° E

Ikumi Beach Surf Forecast and Surf Report

Issued: 8 am 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Ikumi Beach sea temperature is
25.8° C
0.9° 

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 15 Jul 2026:

  • Best quality surf: Wednesday 15 Jul, 9PM (local time) - 2.5ft (0.8m), 8s period, SSW swell with glassy winds.
  • Most powerful swell: Thursday 16 Jul, 9AM (local time) - 3ft (0.9m), 8s period, SSW swell with 98 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 15 Jul, 9PM (local time) - 2.5ft (0.8m), 8s 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 Wednesday (Jul 15) at 9PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.4m and 10s. 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 8s and forecast to arrive on Thursday (Jul 16) at 9AM. Winds are predicted to be 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 TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Wed 15th Jul)2.5ft (0.8m) 8s
Best Surf 9PM (Wed 15th Jul)2.5ft (0.8m) 8s
Most Powerful 9AM (Thu 16th Jul)3ft (0.9m) 8s

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


The Lowdown

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

Honestly, the first week and a bit is flat out depressing. We’ve got a long stretch of tiny, weak waves from the 15th of July right through to the 24th. The swell barely gets above 3 ft, with periods all over the shop and combined energy rarely cracking 130 (weak). It’s almost all small, short-period, sloppy stuff. The few mornings that are glassy – like Wednesday the 15th, Friday the 17th, Monday the 20th, and Tuesday the 21st – the waves are just too small to get excited about, maybe 1 ft to 2 ft. It’s surfable, but you’d be scratching for a ride. This is a proper blank run, and for Ikumi, that’s a bit of a throwaway period.

Now, the real story kicks off on Saturday the 25th of July. That morning, the energy jumps up to 210 (moderate) with a 16-second period groundswell from the SE at 1 ft. The wind is glassy offshore from the SE, and the water temp is about 78°F, which is around 2°F cooler than normal, so just a touch cooler than average for the time of year. It’s not a big wave, but with that long period and clean conditions, it’ll be lined up and fun on a longboard or a fish. That’s a standout session for the patient.

The real highlight, though, is Monday the 27th of July. Holy moly, the morning brings a 7 ft swell from the east with a short 8-second period, but the combined energy is a massive 940 (strong) and the wind is glassy from the SSE. That’s a lot of juice for the beach break. The afternoon stays solid at 7 ft, though the wind turns cross-on, making it a bit lumpy. For the experienced surfer, that morning window is the pick of the whole forecast. The 28th of July sees a drop back to 4 ft from the SSE with a longer 11-second period, but the wind is cross-on, so it’s a bit average.

Looking further out, the 29th and 30th of July show some serious size. The 29th has a 8 ft swell from the south with a 13-second period, but the wind is a cross-on 9 mph, so it’s gonna be choppy and messy. The 30th pushes even bigger, with a 8 ft swell from the south and a 14-second period, and the energy is through the roof at 4040 (very strong). The wind is onshore though, so it’s strictly for the experts who don’t mind a battle. These are big, powerful waves, but the wind is the enemy.

So, bottom line: the first 10 days are a write-off. The best on offer is the glassy, long-period morning of Saturday the 25th, and the standout session to plan for is the clean, powerful morning of Monday the 27th. The big stuff at the end of the month is for the brave and the experienced only.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Fri afternoon. Warm (max 32°C on Wed afternoon, min 26°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 17mm), heaviest on Sat night. Warm (max 30°C on Mon afternoon, min 26°C on Sat night). Wind will be generally light.

Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
0
0
1
1
0
0
0
0
1
0
0
1
1
0
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SSW
9
0.8
SSW
9
0.8
SSW
8
0.9
SSW
8
0.8
SSW
8
0.6
SSW
7
0.6
SSW
7
0.3
SE
10
0.3
SE
10
0.3
ESE
9
0.3
ESE
8
0.4
SE
8
0.4
ESE
10
0.3
E
10
0.4
ESE
8
0.4
ESE
9
0.2
ESE
12
0.4
SE
11
0.3
ESE
11
0.3
ESE
11
0.3
SE
8
Wave Graph
Metric surfscale
Energy kJ
84
84
75
98
66
32
33
16
16
15
12
19
32
17
27
25
14
31
23
23
11
Wind (km/h)
5
E
10
SSW
5
NNW
5
SE
10
SE
5
NW
5
ESE
5
SSE
0
SW
10
E
10
SE
5
ESE
5
ESE
10
SSE
5
WSW
5
SE
10
SSW
5
WNW
5
SE
5
SSE
5
NNW
Wind State
glassy
cross
glassy
on
cross-on
glassy
glassy
cross-on
glassy
on
on
glassy
on
cross-on
glassy
glassy
cross
off
glassy
glassy
cross-off
High Tide
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
10:13AM1.61m
10:24PM1.73m
Low Tide
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
4:08AM0.71m
4:09PM0.81m
clear
part cloud
clear
clear
clear
part cloud
part cloud
rain showers
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:03
5:03
5:03
5:05
5:05
5:05
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:13
7:13
7:13
7:12
7:12
7:10
7:10
 mm
1
2
5
3
2
1
3
1
3
Temp °C
31
32
28
31
31
28
30
30
27
29
28
27
28
28
27
29
30
27
31
30
28
Feels °C
35
36
33
35
35
34
33
34
32
33
32
33
33
32
32
34
35
32
36
35
34
  • 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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