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Nanwan Beach (South Bay) surfForecast / South / Taiwan
12 Day Weather and Surf, issued 1 pm Sunday 09 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 Tuesday (Nov 11) at 5PM. The primary swell is predicted to be 4.0m and 14s period with a secondary swell of 2.5m and 10s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Nanwan Beach (South Bay) in the next 12 days are 5.0m 14s and forecast to arrive on Tuesday (Nov 11) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 10s period and expected on Monday (Nov 10) at 8AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Tue 11th Nov) | 13ft (4.0m) 14s |
| Best Surf | 5PM (Tue 11th Nov) | 13ft (4.0m) 14s |
| Most Powerful | 11PM (Tue 11th Nov) | 16ft (5.0m) 14s |
Table - best surf conditions forecast for Nanwan Beach (South Bay) over the next 12 days.
Short Range Forecast Heavy rain (total 91mm), heaviest during Mon night. Warm (max 28°C on Tue afternoon, min 25°C on Sun night). Winds decreasing (near gales from the NE on Mon morning, light winds from the SE by Tue afternoon). | Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Wed afternoon. Warm (max 27°C on Wed afternoon, min 23°C on Thu night). Winds decreasing (strong winds from the WNW on Thu afternoon, light winds from the WNW by Thu night). | ||||||||||||||||||||||
Sun 09 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 17 | 17 | 14 | 12 | 11 | 10 | 14 | 14 | 13 | 12 | 11 | 9 | 9 | 5 | 5 | 4 | 9 | 9 | 9 | 8 | 6 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 4593 | 9131 | 3544 | 1789 | 1279 | 2600 | 6227 | 10736 | 7211 | 4346 | 1403 | 830 | 924 | 20 | 19 | 6 | 54 | 57 | 55 | 0 | 0 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross- on | on | on | cross- on | cross | cross- off | cross- off | cross- off | on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | ||
High Tide / height (m) | 8:58PM 1.29 | 9:55PM 1.19 | 11:04PM 1.08 | 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 | |||||||||||||
Low Tide / height (m) | 5:21AM 0.07 | 6:43AM 0.14 | 8:00AM 0.19 | 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 | |||||||||||||
Sun 09 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||||
| Sunrise | - | - | 6:05 | - | - | 6:05 | - | - | 6:05 | - | - | 6:07 | - | - | 6:07 | - | - | 6:07 | - | - | 6:09 | ||
| Sunset | 5:15 | - | - | 5:15 | - | - | 5:15 | - | - | 5:15 | - | - | 5:14 | - | - | 5:14 | - | - | 5:14 | - | - | ||
 |  |  |  |  | | | | | | |  | |  | | | | | | | | |||
Rain (mm) | - | 1 | 1 | 11 | 48 | 9 | 5 | 8 | 8 | 5 | 2 | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 27 | 26 | 26 | 25 | 27 | 27 | 28 | 28 | 27 | 27 | 26 | 25 | 25 | 24 | 25 | 26 | 26 | 27 | 27 | 26 | 27 | ||
| Feels °C (?) | 22 | 20 | 19 | 19 | 25 | 25 | 30 | 28 | 26 | 27 | 26 | 21 | 21 | 21 | 27 | 27 | 26 | 28 | 28 | 28 | 27 | ||
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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 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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