Surf Forecasts:
How big are the waves at Nanwan Beach (South Bay) today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 10ft (3.0m), 9s period with SW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 11ft (3.5m), 10s period with SW swell.
- Evening surf: Evening surf (21 Aug, local time) - 10ft (3.0m), 10s period with SW swell.
The current surf forecast for Nanwan Beach (South Bay) at 3PM is: 3.5m 10s primary swell from a Southwest direction (forecast issued at 07:00am August 21). An open ocean swell of 0.2m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 10ft (3.0m) | 9s |
| Afternoon (21 Aug) | 11ft (3.5m) | 10s |
| Evening (21 Aug) | 10ft (3.0m) | 10s |
Table - waves today at Nanwan Beach (South Bay). (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 159mm), heaviest during Fri night. Warm (max 27°C on Fri morning, min 26°C on Fri night). Mainly fresh winds. | |||||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||||||||
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 | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 9 | SW 9 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SSW 9 | SW 9 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 1411 | 1696 | 1904 | 2046 | 2129 | 1869 | 1631 | 1631 | 1404 | 1332 | 1195 | 1150 | 1168 | 1102 | 1062 | 1126 | 1168 | 1055 | 1094 | 1159 | 1175 | 535 | 993 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross |
High Tide | 1:28AM0.95m | 2:47AM0.98m | |||||||||||||||||||||
Low Tide | 9:52AM0.36m | 11:01AM0.29m | 11:37AM0.24m | ||||||||||||||||||||
 |  | | |  | |  | | | | | | | | | | | | | | | | | |
 | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — |
 | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:21 | — | — |
mm | 5 | 7 | 7 | 10 | 11 | 11 | 8 | 6 | 17 | 9 | 2 | 2 | 4 | 3 | 3 | 3 | 4 | 5 | 9 | 13 | 7 | 4 | 3 |
Temp °C | 28 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 29 | 26 | 26 | 26 | 27 | 26 | 27 | 27 | 29 | 28 | 29 | 28 | 28 | 29 | 27 | 27 | 28 | 28 | 27 | 27 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | NE 8 | SW 10 | SW 10 | ESE 10 | ESE 10 | SW 9 | SW 9 | SW 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SSW 9 | ESE 10 |
| kJ | 14 | 14 | 13 | 7 | 7 | 7 | 7 | 3 | 1404 | 1332 | 10 | 10 | 1168 | 1102 | 1062 | 20 | 20 | 19 | 19 | 19 | 19 | 535 | 18 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | ESE 10 | ESE 10 | NE 8 | NE 8 | ESE 10 | ESE 10 | ESE 10 | NE 8 | NE 9 | NE 9 | NE 9 | NE 9 | E 14 | ESE 10 | E 14 |
| kJ | — | — | — | — | — | — | — | — | 11 | 10 | 3 | 3 | 10 | 10 | 21 | 3 | 3 | 3 | 3 | 3 | 16 | 18 | 16 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NE 8 | NE 8 | — | E 10 | NE 8 | NE 8 | NE 8 | — | — | — | — | — | — | E 14 | E 14 |
| kJ | — | — | — | — | — | — | — | — | 3 | 3 | — | 2 | 3 | 3 | 3 | — | — | — | — | — | — | 16 | 16 |
Wind waves Height (m) Direction Period (s) | SW 9 | SW 9 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | — | — | SW 10 | SW 10 | — | — | — | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | WSW 8 | SW 9 |
| kJ | 1411 | 1696 | 1904 | 2046 | 2129 | 1869 | 1631 | 1631 | — | — | 1195 | 1150 | — | — | — | 1126 | 1168 | 1055 | 1094 | 1159 | 1175 | 534 | 993 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 329 | 329 | 148 | 996 | 348 | 348 | 348 | 348 | 316 | 14 | 42 | 14 | 363 | 42 | 363 | 329 | 316 | 42 | 442 | 42 | 42 | 14 | 14 |
Best forecast wave conditions in South Taiwan | |||||||||||||||||||||||
Best forecast wave conditions in Taiwan | |||||||||||||||||||||||
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