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Nanwan Beach (South Bay) surfForecast / South / Taiwan
12 Day Weather and Surf, issued 1 am Wednesday 12 Nov 2025 CST
Best Forecast Surf Conditions for Nanwan Beach (South Bay) this week:
The surf forecast for Nanwan Beach (South Bay) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Nov 12) at 8PM. The primary swell is predicted to be 4.0m and 10s period with a secondary swell of 3.0m and 9s. Another secondary swell of 1.5m and 7s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Nanwan Beach (South Bay) in the next 12 days are 4.5m 10s and forecast to arrive on Wednesday (Nov 12) at 5AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6.0m 11s period and expected on Tuesday (Nov 18) at 5AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 12th Nov) | 13ft (4.0m) 10s |
| Best Surf | 8PM (Wed 12th Nov) | 13ft (4.0m) 10s |
| Most Powerful | 5AM (Wed 12th Nov) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Nanwan Beach (South Bay) over the next 12 days.
Short Range Forecast Light rain (total 7mm), mostly falling on Wed morning. Warm (max 27°C on Wed morning, min 23°C on Wed night). Winds decreasing (strong winds from the SSE on Wed afternoon, moderate winds from the NW by Thu morning). | Days 3-6 Weather Summary Some drizzle, heaviest during Mon night. Warm (max 26°C on Sun afternoon, min 19°C on Mon night). Winds increasing (fresh winds from the NNE on Sat night, gales from the NE by Mon night). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 7 | 7 | 7 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 9 | 10 | 11 | 11 | 10 | 10 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 3318 | 3566 | 77 | 8 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- off | 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 |
High Tide / height (m) | 12:29AM 0.97 | 4:14PM 0.62 | 1:59AM 0.89 | 4:14PM 0.70 | 3:15AM 0.84 | 4:28PM 0.80 | 4:15AM 0.79 | 4:46PM 0.89 | 5:05AM 0.75 | 5:06PM 0.98 | 5:50AM 0.71 | 5:28PM 1.06 | |||||||||
Low Tide / height (m) | 8:57AM 0.23 | 7:13PM 0.59 | 9:35AM 0.27 | 9:15PM 0.52 | 10:01AM 0.31 | 10:23PM 0.42 | 10:22AM 0.34 | 11:12PM 0.33 | 10:39AM 0.37 | 11:53PM 0.24 | 10:56AM 0.40 | 12:30AM 0.17 | |||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
| Sunrise | 6:05 | - | - | 6:07 | - | - | 6:07 | - | - | 6:07 | - | - | 6:09 | - | - | 6:09 | - | - | 6:09 | - | - |
| Sunset | - | 5:15 | - | - | 5:14 | - | - | 5:14 | - | - | 5:14 | - | - | 5:13 | - | - | 5:13 | - | - | 5:13 | - |
 |  |  |  | |  |  | |  | | | | |  |  | | |  | |  | | |
Rain (mm) | 3 | 2 | 1 | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 5 | 6 | 5 |
| Temp. °C | 27 | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 24 | 24 | 25 | 24 | 25 | 26 | 24 | 22 | 22 | 21 | 18 | 17 | 18 |
| Feels °C (?) | 24 | 22 | 23 | 25 | 25 | 21 | 21 | 21 | 20 | 22 | 22 | 21 | 22 | 23 | 19 | 12 | 13 | 11 | 7 | 6 | 8 |
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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 Nanwan Beach (South Bay) 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 Nanwan Beach (South Bay) Surf forecast
The above surf forecast table for Nanwan Beach (South Bay) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Nanwan Beach (South Bay) can be found by selecting the local surf guide option on the grey menu. Our Nanwan Beach (South Bay) 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 (Nanwan Beach (South Bay)) 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 Nanwan Beach (South Bay) 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.
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