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Surf Forecasts:
Nanwan Beach (South Bay) surfForecast / South / Taiwan
16 Day Weather and Surf, issued 1 am Saturday 30 May 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
28.5° C
(Which is normal for this time of year)Nanwan Beach (South Bay) surf forecast from 30 May 2026:
- Best quality surf: Sunday 31 May, 8PM (local time) - 10ft (3.0m), 14s period, E swell with cross-offshore winds.
- Most powerful swell: Sunday 31 May, 11PM (local time) - 10ft (3.0m), 14s period, E swell with 3,803 kJ wave energy.
- Next surfable swell (1★+): Sunday 31 May, 8AM (local time) - 5ft (1.6m), 12s period with ESE swell.
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 Sunday (May 31) at 8AM. The primary swell is predicted to be 1.6m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Nanwan Beach (South Bay) in the next 16 days are 3.0m 14s and forecast to arrive on Sunday (May 31) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 13s period and expected on Monday (Jun 01) at 8AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 31st May) | 5ft (1.6m) 12s |
| Best Surf | 8PM (Sun 31st May) | 10ft (3.0m) 14s |
| Most Powerful | 11PM (Sun 31st May) | 10ft (3.0m) 14s |
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 ForecastMostly dry. Warm (max 29°C on Sat morning, min 25°C on Sat night). Winds decreasing (fresh winds from the NE on Sat night, calm by Sun night). | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Tue afternoon, min 27°C on Tue night). Winds decreasing (fresh winds from the NW on Tue morning, light winds from the SW by Wed night). | ||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | Tuesday 2 | Wednesday 3 | Thursday 4 | Friday 5 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
ESE 10 | E 10 | ESE 14 | E 13 | E 14 | E 13 | ENE 13 | ENE 13 | ENE 12 | S 9 | ESE 11 | SW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | SSW 8 | SSW 8 | SSW 7 | SSW 8 | SW 8 | |
9 | 48 | 421 | 1543 | 3376 | 2494 | 0 | 0 | 0 | 2 | 11 | 30 | 59 | 59 | 52 | 47 | 131 | 326 | 266 | 310 | 410 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | |
High Tide | 7:08PM0.59m | 6:08AM1.17m | 7:49PM0.57m | 6:40AM1.19m | 8:27PM0.54m | 7:14AM1.19m | 9:04PM0.51m | 7:49AM1.18m | 9:44PM0.49m | 8:27AM1.15m | 10:29PM0.48m | 9:06AM1.11m | 11:24PM0.49m | ||||||||
Low Tide | 1:05PM0.13m | 11:10PM0.44m | 1:42PM0.11m | 11:33PM0.45m | 2:21PM0.11m | 11:58PM0.44m | 3:01PM0.12m | 00:23AM0.44m | 3:42PM0.15m | 00:50AM0.44m | 4:26PM0.19m | 1:20AM0.45m | 5:10PM0.22m | 1:59AM0.47m | |||||||
 |  |  | | |  | | | | | | | | | | | | | | |  | |
 | 5:13 | — | — | 5:13 | — | — | 5:13 | — | — | 5:13 | — | — | 5:13 | — | — | 5:11 | — | — | 5:11 | — | — |
 | — | 6:35 | — | — | 6:35 | — | — | 6:36 | — | — | 6:36 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | |
Temp °C | 29 | 28 | 27 | 27 | 28 | 27 | 28 | 28 | 28 | 28 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 29 |
28 | 29 | 25 | 29 | 30 | 28 | 30 | 27 | 29 | 27 | 31 | 32 | 31 | 31 | 34 | 31 | 30 | 30 | 31 | 31 | 33 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | E 10 | ESE 14 | E 13 | E 14 | E 13 | ENE 13 | ENE 13 | ENE 12 | NE 11 | NE 12 | NE 12 | NE 11 | SSW 8 | SSW 8 | SSW 7 | SSW 8 | SSW 8 | SE 8 | SSW 8 | SSE 8 |
 kJ | 9 | 48 | 421 | 1543 | 3376 | 2494 | 1323 | 1180 | 722 | 373 | 416 | 268 | 145 | 59 | 52 | 47 | 131 | 326 | 16 | 310 | 6 |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 6 | ESE 9 | — | — | NE 7 | NNW 6 | — | — | SW 6 | ESE 11 | SW 8 | SSW 8 | NE 11 | NE 12 | NE 11 | SE 8 | SE 8 | E 10 | E 10 | E 10 |
| kJ | 2 | 2 | 34 | — | — | 262 | 4 | — | — | 1 | 11 | 30 | 59 | 150 | 106 | 57 | 15 | 23 | 17 | 7 | 7 |
Swell 3 Height (m) Direction Period (s) | — | E 16 | SW 6 | — | — | NW 6 | — | — | — | S 9 | SSW 8 | E 10 | E 10 | E 10 | E 10 | SSW 9 | NE 10 | E 10 | NNE 8 | NE 8 | SE 12 |
| kJ | — | 5 | 2 | — | — | 10 | — | — | — | 2 | 7 | 18 | 31 | 30 | 31 | 31 | 25 | 17 | 7 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 6 | ENE 7 | NE 6 | NE 7 | — | WNW 4 | NW 6 | WNW 5 | WNW 5 | WNW 4 | NW 4 | — | — | WSW 4 | W 4 | W 3 | WSW 4 | SSW 7 | WNW 5 | SW 8 |
| kJ | 352 | 219 | 313 | 182 | 279 | — | 11 | 88 | 45 | 106 | 29 | 4 | — | — | 2 | 3 | 2 | 29 | 266 | 14 | 410 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 676 | 676 | 329 | 676 | 0 | 0 | 2 | 42 | 14 | 14 | 2 | 2 | 2 | 0 | 0 | 2 | 316 | 14 | 2 | 14 | 2 |
Best forecast wave conditions in South Taiwan | |||||||||||||||||||||
Best forecast wave conditions in Taiwan | |||||||||||||||||||||
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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 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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