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Nanwan Beach (South Bay) surfForecast / South / Taiwan
48hr Weather and Surf, issued 1 pm Thursday 21 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
27.9° C
(Which is normal for this time of year)How big are the waves at Nanwan Beach (South Bay) today?
The current surf forecast for Nanwan Beach (South Bay) at 10PM is: 0.9m 10s primary swell from a East direction and 0.4m 7s secondary swell from a Southwest direction (forecast issued at 01:00pm May 21). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 3.5ft (1.0m) | 10s |
| Afternoon (21 May) | 3ft (0.9m) | 10s |
| Evening (21 May) | 3ft (0.9m) | 10s |
Table - waves today at Nanwan Beach (South Bay). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 27°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the WNW by Sat morning). | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | |
148 | 148 | 145 | 148 | 148 | 151 | 151 | 151 | 151 | 151 | 151 | 151 | 117 | 117 | 115 | 115 | 115 | 113 | 113 | 113 | 113 | 113 | 115 | 113 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross | cross | 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 | 9:37AM1.26m | 10:39AM1.15m | 11:51AM1.03m | 3:06AM0.60m | ||||||||||||||||||||
Low Tide | 6:00PM0.09m | 7:08PM0.15m | 8:05PM0.21m | 6:13AM0.56m | ||||||||||||||||||||
 |  | |  | |  | | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:13 | — |
 | — | — | 6:30 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | 6:31 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 |
29 | 29 | 29 | 29 | 30 | 32 | 32 | 31 | 31 | 30 | 29 | 29 | 29 | 30 | 29 | 28 | 27 | 28 | 28 | 29 | 31 | 30 | 29 | 29 | |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 |
 kJ | 148 | 148 | 145 | 148 | 148 | 151 | 151 | 151 | 151 | 151 | 151 | 151 | 117 | 117 | 115 | 115 | 115 | 113 | 113 | 113 | 113 | 113 | 115 | 113 |
Swell 2 Height (m) Direction Period (s) | SW 7 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | SW 7 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SSE 5 | SW 6 |
| kJ | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 18 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 11 | 11 | 14 | 14 | 13 | 12 | 11 | 2 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SE 4 | — | NW 3 | NNW 3 | — | — | — | SSE 4 | SSE 5 | SSE 4 | SSE 5 | WSW 8 | WSW 8 | — | — | SE 5 | SSE 5 | — | — | — |
| kJ | — | — | — | — | 1 | — | 2 | 1 | — | — | — | 2 | 2 | 2 | 2 | 7 | 6 | — | — | 3 | 2 | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 2 | — | W 2 | WNW 3 | NW 3 | NW 3 | WNW 3 | W 3 | — | — | W 2 | WNW 3 | WNW 3 | WNW 3 | WNW 3 | W 2 | W 7 | W 3 | W 4 | WNW 4 | W 3 | WNW 3 | W 3 | W 3 |
| kJ | 1 | — | 1 | 1 | 2 | 2 | 1 | 1 | — | — | 1 | 1 | 1 | 2 | 1 | 1 | 33 | 10 | 17 | 11 | 6 | 3 | 5 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 14 | 14 | 14 | 42 | 2 | 0 | 0 | 14 | 2 | 14 | 42 | 2 | 2 | 2 | 14 | 42 | 42 | 42 | 42 | 2 | 0 | 14 | 42 | 14 |
Best forecast wave conditions in South Taiwan | ||||||||||||||||||||||||
Best forecast wave conditions in Taiwan | ||||||||||||||||||||||||
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