Surf Forecasts:
Nunoshima surf forecast from 25 Aug 2026:
- Best quality surf: Friday 28 Aug, 6AM (local time) - 3.5ft (1.1m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 6PM (local time) - 10ft (3.0m), 13s period, SSE swell with 3,024 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 6AM (local time) - 3.5ft (1.1m), 9s period with S swell.
Best Forecast Surf Conditions for Nunoshima this week:
The surf forecast for Nunoshima over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 28) at 6AM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.5m and 8s. Another secondary swell of 0.3m and 10s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Nunoshima in the next 16 days are 3.0m 13s and forecast to arrive on Tuesday (Sep 01) at 6PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 28th Aug) | 3.5ft (1.1m) 9s |
| Best Surf | 6AM (Fri 28th Aug) | 3.5ft (1.1m) 9s |
| Most Powerful | 6PM (Tue 1st Sep) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Nunoshima over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Fri afternoon. Warm (max 31°C on Thu morning, min 25°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Sat afternoon. Warm (max 30°C on Sun morning, min 25°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | S 11 | S 11 | SSW 11 | S 8 | S 10 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | S 6 | SSW 5 | SSW 7 | S 6 | S 7 | S 8 | S 8 | S 9 | SSE 10 | S 17 | S 14 | SSE 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 926 | 617 | 297 | 173 | 407 | 190 | 109 | 96 | 111 | 36 | 49 | 73 | 43 | 49 | 45 | 48 | 41 | 140 | 381 | 932 | 1522 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-on | cross | glassy | glassy | glassy | glassy | cross-on | cross-off | glassy | cross-on | cross | cross-on | cross-on | on | cross-on | on | on |
High Tide | 5:43PM1.86m | 5:06AM1.93m | 6:07PM1.91m | 5:46AM2.00m | 6:31PM1.94m | 6:23AM2.03m | 6:55PM1.95m | 7:00AM2.02m | 7:18PM1.94m | 7:38AM1.95m | 7:42PM1.92m | 8:17AM1.84m | 8:07PM1.88m | ||||||||
Low Tide | 11:05AM0.31m | 11:22PM0.88m | 11:40AM0.28m | 11:52PM0.74m | 12:12PM0.30m | 00:23AM0.62m | 12:43PM0.37m | 00:54AM0.53m | 1:12PM0.47m | 1:26AM0.48m | 1:41PM0.60m | 2:00AM0.46m | 2:09PM0.76m | 2:38AM0.48m | |||||||
 |  |  | | |  |  | | | | |  | | | | | |  | | | | |
 | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — |
 | — | 6:36 | — | — | 6:35 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — |
mm | — | — | — | — | — | — | 1 | 5 | — | — | 4 | 1 | — | 3 | 2 | — | — | 4 | 4 | 15 | 27 |
Temp °C | 30 | 30 | 27 | 31 | 31 | 27 | 29 | 28 | 26 | 29 | 29 | 27 | 30 | 29 | 27 | 29 | 29 | 27 | 27 | 26 | 27 |
Feels °C | 31 | 32 | 31 | 32 | 32 | 30 | 34 | 33 | 31 | 33 | 34 | 32 | 33 | 33 | 32 | 31 | 31 | 31 | 30 | 26 | 28 |
Swell 1 Height (m) Direction Period (s) | S 11 | SE 9 | SSW 11 | SSW 10 | S 16 | SSE 9 | SSE 8 | S 7 | S 7 | S 6 | ESE 9 | SSE 11 | S 6 | S 7 | S 8 | SE 10 | S 9 | SSE 10 | SSE 10 | S 15 | SSE 12 |
| kJ | 926 | 135 | 297 | 111 | 5 | 96 | 53 | 74 | 59 | 36 | 9 | 12 | 43 | 49 | 45 | 16 | 41 | 140 | 275 | 823 | 1522 |
Swell 2 Height (m) Direction Period (s) | S 15 | SSE 9 | SSE 8 | SSE 11 | E 11 | SE 15 | SE 10 | SSE 8 | SE 9 | SE 9 | SE 11 | ESE 9 | SE 10 | SE 10 | SE 11 | S 12 | SE 10 | SSW 8 | S 17 | S 14 | ESE 10 |
| kJ | 4 | 148 | 120 | 25 | 10 | 9 | 15 | 22 | 14 | 14 | 5 | 8 | 16 | 16 | 18 | 24 | 26 | 7 | 381 | 932 | 21 |
Swell 3 Height (m) Direction Period (s) | SE 15 | E 13 | E 11 | SE 16 | SE 16 | SE 15 | SE 14 | SE 10 | SSE 8 | SSE 8 | SE 14 | SW 9 | S 11 | SW 11 | S 13 | S 11 | SSE 12 | S 9 | S 12 | — | — |
| kJ | 8 | 29 | 2 | 10 | 10 | 9 | 8 | 16 | 6 | 6 | 7 | 3 | 2 | 4 | 13 | 9 | 15 | 2 | 109 | — | — |
Wind waves Height (m) Direction Period (s) | — | S 11 | SSW 4 | S 8 | S 10 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 5 | SSW 5 | SSW 7 | — | — | SW 5 | S 8 | SSW 3 | SSE 3 | — | SSE 9 | — |
| kJ | — | 617 | 11 | 173 | 407 | 190 | 109 | 96 | 111 | 32 | 49 | 73 | — | — | 9 | 48 | 3 | 2 | — | 362 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 450 | 4 | 4 | 34 | 4 | 0 | 0 | 0 | 0 | 23 | 0 | 0 | 4 | 4 | 4 | 408 | 66 | 450 | 453 | 421 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 16 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.
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