Surf Forecasts:
How big are the waves at Riyue Bay (Riyuewan) today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 4.5ft (1.3m), 8s period with S swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 5ft (1.5m), 9s period with S swell.
- Evening surf: Evening surf (20 Aug, local time) - 6ft (1.8m), 9s period with S swell.
The current surf forecast for Riyue Bay (Riyuewan) at 8AM is: 1.2m 8s primary swell from a South direction and 0.5m 8s secondary swell from a Northeast direction, 1.0m 6s secondary swell from a Southwest direction (forecast issued at 01:00am August 20). The wind direction is predicted to be cross-offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 4.5ft (1.3m) | 8s |
| Afternoon (20 Aug) | 5ft (1.5m) | 9s |
| Evening (20 Aug) | 6ft (1.8m) | 9s |
Table - waves today at Riyue Bay (Riyuewan). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Thu morning. Warm (max 31°C on Sat afternoon, min 26°C on Thu morning). Mainly fresh winds. | ||||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||||||||||
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 6 | SSW 6 | S 8 | S 9 | S 9 | S 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 | SSE 9 | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | SW 6 | SW 7 | SW 7 | S 8 | S 8 | S 8 | S 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 245 | 219 | 181 | 363 | 339 | 421 | 577 | 593 | 412 | 506 | 575 | 567 | 655 | 589 | 495 | 421 | 297 | 216 | 295 | 227 | 195 | 195 | 205 | 245 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross | cross-off | cross | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:44AM1.27m | 3:19AM1.30m | 4:06AM1.32m | |||||||||||||||||||||
Low Tide | 11:27AM0.48m | 1:11PM0.42m | 2:27PM0.35m | |||||||||||||||||||||
 |  |  | | | |  |  |  | |  | | | | | | | |  | | | | | | |
 | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:00 | — | — |
mm | 4 | 8 | 5 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 28 | 27 | 28 | 27 | 28 | 27 | 27 | 28 | 29 | 29 | 28 | 27 | 27 | 27 | 26 | 27 | 29 | 31 | 29 | 28 | 27 |
Feels °C | 28 | 28 | 29 | 30 | 29 | 29 | 29 | 28 | 27 | 26 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 27 | 28 | 30 | 32 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | NE 8 | ENE 8 | S 8 | S 9 | S 9 | S 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 | SSE 9 | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 54 | 44 | 181 | 363 | 339 | 421 | 577 | 593 | 412 | 506 | 575 | 567 | 655 | 589 | 495 | 421 | 297 | 200 | 165 | 190 | 195 | 195 | 205 | 245 |
Swell 2 Height (m) Direction Period (s) | E 9 | SE 9 | NE 8 | ENE 8 | NE 8 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 7 | NE 7 | NE 7 | NE 9 | E 9 | E 9 | E 9 | E 9 | — | — | — | — | — |
| kJ | 2 | 3 | 31 | 23 | 14 | 14 | 10 | 5 | 5 | 5 | 5 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 1 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | NE 7 | — | — | E 9 | E 9 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 13 | — | — | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 6 | SW 6 | SW 5 | SW 6 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | SW 5 | SW 5 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | SW 6 | SW 7 | SW 7 | SW 6 | SW 5 | SW 6 | WSW 7 |
| kJ | 245 | 219 | 75 | 67 | 167 | 145 | 93 | 29 | 42 | 5 | 4 | 41 | 77 | 90 | 83 | 52 | 98 | 216 | 295 | 227 | 157 | 94 | 80 | 31 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1090 | 1090 | 1265 | 1379 | 362 | 347 | 362 | 362 | 362 | 359 | 359 | 1183 | 1183 | 1391 | 624 | 1377 | 982 | 624 | 576 | 1183 | 1248 | 1248 | 624 | 621 |
Best forecast wave conditions in Hainan | ||||||||||||||||||||||||
Best forecast wave conditions in China | ||||||||||||||||||||||||
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