Ikumi Beach Surf Forecast

/ Shikoku (17 surf breaks) /

Japan (129 surf breaks) / Lat Long: (33.53° N 134.28° E)

Surf Forecasts:

Ikumi Beach surfForecast / Shikoku / Japan

12 Day Weather and Surf, issued 8 am Monday 15 Sep 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Ikumi Beach sea temperature is 28.4° C
(Which is 1.5°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Ikumi Beach this week:

The surf forecast for Ikumi Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 15) at 3PM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.4m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Ikumi Beach in the next 12 days are 1.2m 11s and forecast to arrive on Monday (Sep 22) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Wednesday (Sep 17) at 9PM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	3PM (Mon 15th Sep)	2ft (0.6m) 9s
Best Surf	9PM (Sun 21st Sep)	3.5ft (1.0m) 12s
Most Powerful	6AM (Mon 22nd Sep)	4ft (1.2m) 11s

Table - best surf conditions forecast for Ikumi Beach over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Moderate rain (total 13mm), heaviest on Mon afternoon. Warm (max 31°C on Wed morning, min 25°C on Tue night). Wind will be generally light.									Days 3-6 Weather Summary Moderate rain (total 13mm), heaviest on Thu afternoon. Warm (max 30°C on Thu morning, min 24°C on Thu night). Wind will be generally light.
	Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 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	1	1	1	0	1	1	1	1	1	0	1	1	0	1	0	0	1	0	0	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	SE	SE	SE	SE	SE	SE	SE	SE	ESE	SE	SE	SE	SE	SE	SE	ESE	ESE	ESE	SSE	SSE	SSE
Period(s) (?)	9	9	9	9	10	9	9	11	9	10	10	10	9	9	9	9	9	9	11	11	11
Wave Graph (?)
kJ (?)	41	51	40	43	46	40	38	28	27	26	47	45	43	41	29	46	47	32	65	117	325
Wind (km/h)	E	SE	WNW	ENE	S	W	SSW	SW	WNW	ENE	SE	NNW	ENE	E	NNE	E	S	W	ENE	NE	N
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	glass	glass	glass	glass	cross- on	cross- off	glass	cross- off	glass	glass	on	glass	glass	cross- on	glass	on	cross- on	off	cross- on	cross	cross- off
High Tide / height (m)		12:18PM 1.46	10:09PM 1.61		2:41PM 1.49	11:49PM 1.52		3:49PM 1.59	2:03AM 1.53		4:25PM 1.69		3:24AM 1.65	4:54PM 1.77		4:20AM 1.79	5:20PM 1.83		5:05AM 1.91	5:44PM 1.88
Low Tide / height (m)		4:31PM 1.32		6:19AM 0.66		7:05PM 1.38	8:02AM 0.64		9:11PM 1.28	9:17AM 0.56		10:02PM 1.11	10:10AM 0.49		10:38PM 0.94	10:52AM 0.43		11:10PM 0.77	11:28AM 0.42		11:41PM 0.61

	Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21
Sunrise	5:45	-	-	5:46	-	-	5:46	-	-	5:47	-	-	5:48	-	-	5:48	-	-	5:48	-	-
Sunset	-	6:09	-	-	6:08	-	-	6:07	-	-	6:06	-	-	6:05	-	-	6:02	-	-	6:01	-

Rain (mm)	1	4	2	-	1	-	-	3	2	-	8	1	1	1	-	1	1	-	1	2	-
Temp. °C	30	29	27	30	30	26	31	30	26	30	28	26	26	26	24	26	27	25	27	27	24
Feels °C (?)	35	35	32	35	35	31	34	35	31	34	32	31	30	30	28	30	31	29	30	30	27

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Shikoku

Wind Update The wind is still cross-on at Ikumi Beach (light winds from the ENE at Murotomisaki(47899-0) 32 km from Ikumi Beach). 0.5m 5s windswell from the S with a 0.4m 9s swell from the SE and a 0.1m 6s windswell from the SSE. 3 swells combining to make bigger set waves.
2 hours 10 minutes ago Ikumi Beach

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32 km away, 2 h 10 min ago

13 km/h

ENE

0.0

28.4

Air / Water (°C)

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ikumi Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

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 12 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.