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Surf Forecasts:
Nunoshima surfForecast / Shikoku / Japan
16 Day Weather and Surf, issued 8 pm Wednesday 20 May 2026 JSTForecast 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
21.3° C
(Which is normal for this time of year)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 (May 22) at 12AM. The primary swell is predicted to be 2.2m and 8s period with a secondary swell of 1.6m and 8s. Another secondary swell of 0.5m and 9s 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 8s and forecast to arrive on Sunday (May 24) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (May 24) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 22nd May) | 7ft (2.2m) 8s |
| Best Surf | 12AM (Fri 22nd May) | 7ft (2.2m) 8s |
| Most Powerful | 3AM (Sun 24th May) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Nunoshima over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 18mm), heaviest on Thu morning. Warm (max 25°C on Fri morning, min 19°C on Fri night). Winds increasing (light winds from the SSW on Wed night, fresh winds from the ESE by Sat afternoon). | Days 5-7 Weather SummaryHeavy rain (total 74mm), heaviest during Sun afternoon. Warm (max 24°C on Mon morning, min 19°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wed 27 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SE 10 | S 7 | S 7 | SSW 8 | S 7 | S 7 | S 6 | SE 7 | SE 7 | SE 8 | SSE 7 | SE 7 | S 7 | S 7 | S 8 | S 7 | S 6 | SSE 5 | SE 5 | S 5 | SSW 6 | |
79 | 173 | 199 | 546 | 134 | 77 | 28 | 268 | 535 | 966 | 352 | 112 | 62 | 61 | 71 | 61 | 31 | 34 | 57 | 109 | 263 | |
Wind (km/h) | |||||||||||||||||||||
cross | cross | cross | cross-off | off | cross-off | on | on | on | on | cross-on | cross-off | glassy | cross | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 7:34AM1.61m | 9:48PM1.50m | 8:23AM1.50m | 10:47PM1.46m | 9:31AM1.39m | 11:51PM1.44m | 11:09AM1.31m | 00:51AM1.46m | 12:57PM1.32m | 1:42AM1.50m | 2:23PM1.41m | 2:24AM1.56m | 3:26PM1.51m | ||||||||
Low Tide | 2:09AM1.00m | 2:42PM0.22m | 3:03AM1.03m | 3:34PM0.37m | 4:17AM1.03m | 4:37PM0.51m | 5:48AM0.97m | 5:52PM0.63m | 7:10AM0.84m | 7:09PM0.71m | 8:11AM0.67m | 8:15PM0.75m | 8:59AM0.49m | ||||||||
 |  |  | | |  | | | |  |  | |  | |  |  | |  |  | |  | |
 | — | 4:56 | — | — | 4:56 | — | — | 4:56 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — |
 | 6:58 | — | 6:59 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:02 |
1 | 3 | 2 | 1 | 1 | — | 5 | 2 | 3 | 16 | 20 | 31 | — | — | — | 3 | 2 | 2 | 7 | 4 | 7 | |
Temp °C | 22 | 23 | 23 | 23 | 25 | 25 | 20 | 20 | 20 | 21 | 20 | 20 | 20 | 24 | 23 | 22 | 24 | 24 | 23 | 23 | 23 |
25 | 25 | 25 | 25 | 24 | 24 | 19 | 17 | 16 | 19 | 20 | 22 | 22 | 26 | 24 | 26 | 26 | 26 | 22 | 22 | 22 | |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 9 | SE 9 | SSW 8 | S 7 | S 7 | S 6 | SW 6 | SW 6 | — | SSE 7 | SE 7 | S 7 | S 7 | S 8 | S 7 | S 6 | SE 10 | SE 10 | SE 11 | SSE 16 |
 kJ | 79 | 42 | 40 | 266 | 134 | 77 | 28 | 2 | 2 | — | 352 | 112 | 62 | 61 | 71 | 61 | 31 | 16 | 16 | 29 | 94 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SE 9 | SE 10 | SE 10 | SW 6 | — | — | — | — | SSW 6 | SE 7 | S 9 | ESE 11 | ESE 11 | SE 10 | SE 15 | SE 15 | SSE 18 | ESE 10 |
| kJ | — | — | — | 42 | 24 | 23 | 10 | — | — | — | — | 31 | 29 | 15 | 11 | 11 | 16 | 9 | 9 | 31 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | ESE 10 | — | — | — | — | SE 12 | ESE 11 | ESE 10 | — | E 8 | SE 15 | S 12 | S 11 | SE 15 | SSE 11 |
| kJ | — | — | — | — | — | — | 19 | — | — | — | — | 6 | 11 | 11 | — | 5 | 9 | 3 | 2 | 9 | 11 |
Wind waves Height (m) Direction Period (s) | SSE 6 | S 7 | S 7 | SSW 8 | NE 3 | N 3 | SE 5 | SE 7 | SE 7 | SE 8 | SSW 6 | NNE 4 | N 4 | NNE 4 | NNE 3 | — | SE 4 | SSE 5 | SE 5 | S 5 | SSW 6 |
| kJ | 54 | 173 | 199 | 546 | 2 | 5 | 27 | 268 | 535 | 966 | 127 | 18 | 10 | 10 | 5 | — | 5 | 34 | 57 | 109 | 263 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 0 | 0 | 20 | 86 | 313 | 362 | 268 | 86 | 0 | 0 | 2 | 4 | 4 | 20 | 34 | 347 | 681 | 692 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
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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