Surf Forecasts:
How big are the waves at Riyue Bay (Riyuewan) today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 7ft (2.2m), 7s period with SW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 7ft (2.1m), 8s period with SW swell.
- Evening surf: Evening surf (21 Aug, local time) - 5ft (1.6m), 9s period with S swell.
The current surf forecast for Riyue Bay (Riyuewan) at 9AM is: 2.2m 7s primary swell from a Southwest direction and 1.5m 9s secondary swell from a South direction, 0.1m 7s secondary swell from a East direction (forecast issued at 01:00am August 21). The wind direction is predicted to be cross-shore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 7ft (2.2m) | 7s |
| Afternoon (21 Aug) | 7ft (2.1m) | 8s |
| Evening (21 Aug) | 5ft (1.6m) | 9s |
Table - waves today at Riyue Bay (Riyuewan). (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Fri morning. Warm (max 32°C on Sun afternoon, min 26°C on Sat night). Winds decreasing (fresh winds from the SW on Fri morning, light winds from the WSW by Sun night). | ||||||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||||||||||
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 | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SSW 8 | SSW 8 | SW 7 | SW 8 | SW 8 | S 9 | S 9 | S 9 | SW 8 | SW 7 | SW 7 | SW 7 | SW 7 | S 8 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | SSE 8 | S 8 | S 9 | S 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 969 | 843 | 507 | 535 | 532 | 495 | 440 | 413 | 423 | 303 | 312 | 261 | 246 | 239 | 251 | 290 | 239 | 191 | 195 | 195 | 202 | 283 | 304 | 356 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | 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 | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:19AM1.30m | 4:06AM1.32m | 5:07AM1.33m | |||||||||||||||||||||
Low Tide | 1:11PM0.42m | 2:27PM0.35m | 3:20PM0.29m | |||||||||||||||||||||
 |  |  |  | | | | | | | |  | | |  | | | | | | | | | | |
 | — | 6:20 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 27 | 27 | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 30 | 31 | 30 | 28 | 27 | 27 | 26 | 28 | 30 | 32 | 30 | 28 | 28 |
Feels °C | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 29 | 31 | 32 | 31 | 30 | 29 | 30 | 28 | 31 | 32 | 33 | 32 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 7 | S 9 | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | SSE 8 | S 8 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | SSE 8 | S 8 | S 9 | S 9 |
| kJ | 2 | 2 | 363 | 391 | 506 | 495 | 440 | 413 | 348 | 234 | 228 | 239 | 246 | 239 | 251 | 290 | 239 | 191 | 195 | 195 | 202 | 283 | 304 | 356 |
Swell 2 Height (m) Direction Period (s) | — | — | E 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 7 |
| kJ | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 24 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 8 | SSW 8 | SW 7 | SW 8 | SW 8 | SW 7 | SW 7 | SW 7 | SW 8 | SW 7 | SW 7 | SW 7 | SW 7 | SW 6 | SW 6 | SW 7 | SW 6 | SW 7 | SW 7 | SW 6 | SW 6 | SW 6 | SW 7 | WSW 7 |
| kJ | 969 | 843 | 507 | 535 | 532 | 456 | 330 | 301 | 423 | 303 | 312 | 261 | 230 | 152 | 73 | 36 | 80 | 131 | 135 | 132 | 129 | 128 | 102 | 108 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1183 | 736 | 359 | 362 | 1387 | 1387 | 349 | 362 | 1391 | 843 | 624 | 624 | 1387 | 1183 | 1173 | 1090 | 621 | 621 | 576 | 621 | 576 | 347 | 0 | 0 |
Best forecast wave conditions in Hainan | ||||||||||||||||||||||||
Best forecast wave conditions in China | ||||||||||||||||||||||||
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