Nunoshima Surf Forecast

/ Shikoku (17 surf breaks) /

Japan (129 surf breaks)

Surf Forecasts:

Nunoshima surfForecast / Shikoku / Japan

12 Day Weather and Surf, issued 2 pm Tuesday 16 Sep 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Nunoshima sea temperature is 27.4° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Nunoshima this week:

The surf forecast for Nunoshima over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 3AM. The primary swell is predicted to be 0.8m and 5s period with a secondary swell of 0.5m and 5s. Another secondary swell of 0.4m and 10s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Nunoshima in the next 12 days are 1.2m 13s and forecast to arrive on Monday (Sep 22) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Monday (Sep 22) at 6AM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	3AM (Thu 18th Sep)	2.5ft (0.8m) 5s
Best Surf	6PM (Tue 23rd Sep)	4ft (1.2m) 11s
Most Powerful	6PM (Mon 22nd Sep)	4ft (1.2m) 13s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 22mm), heaviest during Thu afternoon. Warm (max 30°C on Tue afternoon, min 21°C on Thu night). Wind will be generally light.											Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Sat night. Warm (max 28°C on Sat afternoon, min 21°C on Sat night). Wind will be generally light.
	Tue 16		Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SSE	SSE	S	SSE	SSE	S	S
Period(s) (?)	9	9	9	9	10	10	10	10	9	9	9	9	9	11	9	9	11	10	11	12	11
Wave Graph (?)
Energy (?)	34	22	26	26	44	39	42	43	29	28	36	36	28	65	48	52	124	173	364	509	459
Wind (km/h)	S	WSW	E	S	W	NE	SW	N	N	NE	WSW	SSE	SSW	N	N	NNE	N	N	NNE	N	N
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross	glass	cross- on	cross- off	cross- off	glass	cross- off	cross- off	cross- off	glass	cross- on	cross- on	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)	3:16PM 1.49	12:13AM 1.47		3:56PM 1.61	2:22AM 1.53		4:24PM 1.71		3:31AM 1.67	4:49PM 1.79		4:20AM 1.81	5:13PM 1.85		5:01AM 1.93	5:35PM 1.90		5:39AM 2.00	5:59PM 1.93		6:15AM 2.03
Low Tide / height (m)		8:01PM 1.37	8:19AM 0.64		9:25PM 1.23	9:24AM 0.54		10:03PM 1.06	10:10AM 0.45		10:35PM 0.88	10:48AM 0.40		11:04PM 0.71	11:22AM 0.40		11:33PM 0.56	11:53AM 0.43		12:03AM 0.43

	Tue 16		Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22
Sunrise	-	-	5:45	-	-	5:46	-	-	5:47	-	-	5:47	-	-	5:48	-	-	5:48	-	-	5:48
Sunset	6:07	-	-	6:06	-	-	6:05	-	-	6:04	-	-	6:01	-	-	6:00	-	-	5:59	-	-

Rain (mm)	-	-	-	4	3	1	8	6	-	-	-	2	2	4	-	-	-	-	-	-	-
Temp. °C	30	27	30	29	26	28	28	24	27	25	24	26	28	24	26	27	23	23	25	21	25
Feels °C (?)	34	32	34	34	30	32	33	26	28	27	28	30	31	27	24	26	22	21	22	18	23

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 Continuing clean conditions at Nunoshima (light winds from the S at Tokushima 33 km from Nunoshima). 0.3m 9s swell from the SE with a 0.2m 4s local chop from the S and a 0.1m 13s groundswell from the ESE. 3 swells combining to make bigger set waves.
1 hour 34 minutes ago Nunoshima

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33 km away, 1 h 34 min ago

6 km/h

0.0

27.4

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 Nunoshima 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 Nunoshima Surf forecast

The above surf forecast table for Nunoshima provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Nunoshima can be found by selecting the local surf guide option on the grey menu. Our Nunoshima 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 (Nunoshima) 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 Nunoshima 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.

Nunoshima is 19 km (12 miles) from Anan. If you plan a holiday in Shikoku, look for hotels and other accommodation in Anan. Anan has rooms for a wide range of budgets as well as car hire and transport links.