Surf Forecasts:
How big are the waves at Riyue Bay (Riyuewan) today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 2.5ft (0.8m), 8s period with S swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 2.5ft (0.8m), 8s period with S swell.
- Evening surf: Evening surf (19 Aug, local time) - 3.5ft (1.1m), 8s period with S swell.
The current surf forecast for Riyue Bay (Riyuewan) at 8PM is: 1.1m 8s primary swell from a South direction and 0.4m 7s secondary swell from a Northeast direction (forecast issued at 01:00pm August 19). An open ocean swell of 0.8m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 2.5ft (0.8m) | 8s |
| Afternoon (19 Aug) | 2.5ft (0.8m) | 8s |
| Evening (19 Aug) | 3.5ft (1.1m) | 8s |
Table - waves today at Riyue Bay (Riyuewan). (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 76mm), heaviest during Thu night. Warm (max 29°C on Wed afternoon, min 26°C on Wed night). Winds increasing (light winds from the W on Wed afternoon, fresh winds from the SW by Fri morning). | |||||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | |||||||||||||||||||
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) | S 8 | S 8 | S 8 | S 8 | S 8 | SSW 7 | S 8 | S 8 | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | SW 9 | SW 8 | SW 8 | SSE 10 | SSE 10 | S 10 | S 10 | S 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 90 | 92 | 90 | 169 | 144 | 293 | 207 | 224 | 318 | 519 | 878 | 1839 | 1693 | 1313 | 886 | 682 | 481 | 551 | 550 | 539 | 441 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:16PM0.73m | 2:44AM1.27m | 3:19AM1.30m | ||||||||||||||||||
Low Tide | 6:52PM0.66m | 11:27AM0.48m | 1:11PM0.42m | ||||||||||||||||||
 | | |  | | | | | | |  |  | |  |  |  |  | | |  | | |
 | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | 7:04 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:01 | — | — |
mm | 1 | 4 | 8 | 6 | 3 | 3 | 2 | 3 | 3 | 4 | 7 | 9 | 6 | 15 | 3 | — | — | — | — | — | — |
Temp °C | 29 | 29 | 28 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 28 | 28 | 27 | 27 |
Feels °C | 34 | 34 | 33 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 27 | 26 | 27 | 26 | 24 | 25 | 27 | 28 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 8 | S 8 | NE 8 | S 8 | S 8 | SSE 9 | S 9 | S 10 | ENE 7 | NE 7 | NE 7 | S 10 | S 10 | SSE 10 | SSE 10 | S 10 | S 10 | S 9 |
| kJ | 90 | 92 | 90 | 169 | 144 | 54 | 207 | 224 | 318 | 332 | 432 | 5 | 2 | 2 | 414 | 432 | 481 | 551 | 550 | 539 | 441 |
Swell 2 Height (m) Direction Period (s) | E 3 | — | NE 6 | NE 7 | NE 8 | — | ENE 8 | NE 8 | NE 8 | NE 8 | ENE 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | 1 | 14 | 54 | — | 44 | 31 | 28 | 14 | 5 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | SE 10 | SE 10 | SE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 4 | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 5 | SW 3 | SW 4 | WSW 6 | SW 6 | SSW 7 | SW 7 | SW 7 | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | WSW 8 | SW 7 | SW 7 | SW 7 |
| kJ | 2 | 2 | 11 | 34 | 54 | 293 | 135 | 132 | 308 | 519 | 878 | 1839 | 1693 | 1313 | 886 | 682 | 402 | 314 | 418 | 372 | 318 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 1237 | 0 | 1173 | 1090 | 1090 | 1265 | 1157 | 1157 | 349 | 349 | 349 | 362 | 362 | 359 | 359 | 1391 | 1391 | 1391 | 1095 | 1391 |
Best forecast wave conditions in Hainan | |||||||||||||||||||||
Best forecast wave conditions in China | |||||||||||||||||||||
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