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Surf Forecasts:
Nanwan Beach (South Bay) surfForecast / South / Taiwan
16 Day Weather and Surf, issued 1 pm Thursday 16 Apr 2026 CSTForecast update in hr min s Forecast update imminent
Nanwan Beach (South Bay) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nanwan Beach (South Bay) sea temperature is
27.4° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Nanwan Beach (South Bay) this week:
The surf forecast for Nanwan Beach (South Bay) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Apr 17) at 2AM. The primary swell is predicted to be 2.1m and 16s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Nanwan Beach (South Bay) in the next 16 days are 2.2m 16s and forecast to arrive on Friday (Apr 17) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 14s period and expected on Monday (Apr 20) at 5PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 17th Apr) | 7ft (2.1m) 16s |
| Best Surf | 2AM (Fri 17th Apr) | 7ft (2.1m) 16s |
| Most Powerful | 5AM (Fri 17th Apr) | 7ft (2.2m) 16s |
Table - best surf conditions forecast for Nanwan Beach (South Bay) over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Mostly dry. Warm (max 26°C on Thu afternoon, min 24°C on Sat night). Winds decreasing (fresh winds from the WNW on Fri afternoon, calm by Sat morning). | Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Sun afternoon. Warm (max 26°C on Sun afternoon, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||
Thu 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||||
| 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) (?) | 15 | 16 | 16 | 15 | 14 | 15 | 15 | 14 | 14 | 14 | 13 | 14 | 14 | 14 | 16 | 14 | 4 | 14 | 14 | 13 | 7 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 1663 | 2237 | 2120 | 1450 | 1208 | 1447 | 1349 | 932 | 865 | 743 | 595 | 893 | 0 | 7 | 10 | 19 | 26 | 20 | 19 | 17 | 32 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | cross- off | cross- off | off | glass | off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross | cross | cross- off | cross | cross- on | cross- on | on | ||
High Tide / height (m) | 6:18PM 0.96 | 6:23AM 1.03 | 7:06PM 0.89 | 6:54AM 1.14 | 7:56PM 0.79 | 7:28AM 1.23 | 8:48PM 0.68 | 8:06AM 1.28 | 9:47PM 0.56 | 8:49AM 1.28 | 11:05PM 0.47 | 9:40AM 1.23 | 10:43AM 1.15 | ||||||||||
Low Tide / height (m) | 12:16AM 0.26 | 12:53PM 0.10 | 12:39AM 0.31 | 1:44PM 0.03 | 1:00AM 0.36 | 2:38PM 0.00 | 1:20AM 0.39 | 3:38PM 0.02 | 1:37AM 0.42 | 4:47PM 0.07 | 1:44AM 0.43 | 6:10PM 0.12 | |||||||||||
Thu 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||||
| Sunrise | - | - | 5:35 | - | - | 5:35 | - | - | 5:33 | - | - | 5:33 | - | - | 5:31 | - | - | 5:31 | - | - | 5:31 | ||
| Sunset | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:17 | - | - | 6:17 | - | - | 6:17 | - | - | 6:19 | - | - | ||
 |  |  | | | | |  | |  |  | | | | | | | | | | | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | 2 | 1 | - | - | - | - | - | - | - | - | 1 | 1 | ||
| Temp. °C | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 24 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 27 | 26 | 27 | ||
| Feels °C (?) | 27 | 25 | 25 | 25 | 23 | 29 | 28 | 26 | 26 | 28 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 26 | 27 | 27 | 28 | ||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 16 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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