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 Saturday 18 Oct 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 26.7° C
(Which is 2.7°C warmer than normal for this time of year)

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 Monday (Oct 20) at 12AM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.1m and 13s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Nunoshima in the next 12 days are 1.7m 10s and forecast to arrive on Saturday (Oct 25) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 5s period and expected on Tuesday (Oct 21) at 6AM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	12AM (Mon 20th Oct)	2ft (0.6m) 8s
Best Surf	12AM (Mon 20th Oct)	2ft (0.6m) 8s
Most Powerful	12PM (Sat 25th Oct)	5.5ft (1.7m) 10s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Light rain (total 3mm), mostly falling on Mon night. Warm (max 28°C on Sat afternoon, min 16°C on Mon night). Winds increasing (light winds from the N on Sat night, fresh winds from the N by Mon night).											Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Tue afternoon. Very mild (max 19°C on Fri morning, min 13°C on Tue night). Mainly fresh winds.
	Sat 18		Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24
	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	1	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 (?)	SSE	SE	SSE	SE	SE	SSE	SE	SE	SE	SE	ESE	SE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE
Period(s) (?)	6	6	8	8	8	7	9	9	9	9	9	9	10	8	10	10	10	10	10	10	10
Wave Graph (?)
kJ (?)	47	31	13	35	53	21	38	39	37	37	48	43	45	41	63	61	88	88	88	90	127
Wind (km/h)	SSW	N	N	NNE	N	N	N	N	N	N	N	N	N	N	N	NNE	N	N	NNE	NNW	NE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	glass
High Tide / height (m)	3:59PM 1.72		4:05AM 1.74	4:25PM 1.78		4:47AM 1.85	4:50PM 1.83		5:26AM 1.92	5:15PM 1.87		6:04AM 1.94	5:40PM 1.89		6:41AM 1.91		6:06PM 1.89	7:20AM 1.85		6:32PM 1.87	8:01AM 1.75
Low Tide / height (m)		10:03PM 0.68	10:16AM 0.56		10:34PM 0.50	10:51AM 0.57		11:05PM 0.34	11:24AM 0.61		11:37PM 0.22	11:54AM 0.68		12:09AM 0.15		12:24PM 0.76	12:42AM 0.12		12:54PM 0.86	1:18AM 0.14

	Sat 18		Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24
Sunrise	-	-	6:07	-	-	6:09	-	-	6:09	-	-	6:11	-	-	6:11	-	-	6:13	-	-	6:13
Sunset	5:24	-	-	5:23	-	-	5:22	-	-	5:21	-	-	5:20	-	-	5:19	-	-	5:17	-	-

Rain (mm)	-	-	-	-	-	-	-	1	2	4	3	-	-	-	-	-	-	-	-	-	-
Temp. °C	28	24	23	23	20	22	22	19	16	15	15	17	17	16	18	18	17	19	20	16	19
Feels °C (?)	28	27	21	22	20	20	20	15	11	11	9	13	13	12	14	15	14	13	15	15	19

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 Wind reports 33 km away suggest it is still onshore at Nunoshima (light winds from the SSE at Tokushima). 0.8m 8s swell from the SE with a 0.7m 5s windswell from the S. 2 swells combining to make bigger set waves.
2 hours 17 minutes ago Nunoshima

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33 km away, 2 h 17 min ago

17 km/h

SSE

0.0

26.7

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.