Surf Forecasts:
How big are the waves at Riyue Bay (Riyuewan) today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 3ft (0.9m), 8s period with S swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 2.5ft (0.8m), 8s period with S swell.
- Evening surf: Evening surf (18 Aug, local time) - 2.5ft (0.8m), 7s period with S swell.
The current surf forecast for Riyue Bay (Riyuewan) at 7PM is: 0.8m 7s primary swell from a South direction and 0.4m 6s secondary swell from a Southwest direction (forecast issued at 01:00pm August 18). The wind direction is predicted to be cross-shore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 3ft (0.9m) | 8s |
| Afternoon (18 Aug) | 2.5ft (0.8m) | 8s |
| Evening (18 Aug) | 2.5ft (0.8m) | 7s |
Table - waves today at Riyue Bay (Riyuewan). (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 59mm), heaviest during Wed afternoon. Warm (max 30°C on Tue afternoon, min 25°C on Fri morning). Wind will be generally light. | |||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||
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 7 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | WSW 6 | S 8 | WSW 7 | WSW 7 | S 8 | NE 7 | S 8 | WSW 8 | WSW 8 | S 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 94 | 76 | 72 | 66 | 72 | 84 | 105 | 108 | 90 | 113 | 161 | 160 | 143 | 163 | 271 | 61 | 56 | 66 | 302 | 566 | 103 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross | cross | cross-off | cross-off | cross-off | cross-off | glassy | glassy | glassy | glassy | off | off | cross-off | off | cross-off | cross-off | off | off | cross-off |
High Tide | 2:05PM0.88m | 2:16AM1.21m | 3:16PM0.73m | 2:44AM1.27m | |||||||||||||||||
Low Tide | 7:18PM0.62m | 9:48AM0.53m | 6:52PM0.66m | 11:27AM0.48m | |||||||||||||||||
 |  | |  | | | | | | |  | |  | | | | | | | | | |
 | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | 7:04 | — | — | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:02 | — | — |
mm | — | 3 | 5 | 4 | 1 | 1 | 2 | 2 | 1 | 2 | 6 | 3 | — | 1 | 2 | 1 | 1 | 1 | 5 | 4 | 1 |
Temp °C | 31 | 30 | 29 | 28 | 27 | 27 | 27 | 27 | 29 | 29 | 28 | 27 | 27 | 27 | 26 | 27 | 29 | 30 | 28 | 27 | 27 |
Feels °C | 36 | 36 | 34 | 33 | 32 | 32 | 32 | 32 | 34 | 35 | 34 | 33 | 32 | 32 | 30 | 31 | 32 | 34 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 7 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | NE 7 | NE 7 | NE 7 | SW 8 | ENE 8 |
| kJ | 94 | 76 | 72 | 66 | 72 | 84 | 105 | 108 | 90 | 113 | 161 | 132 | 143 | 135 | 82 | 61 | 56 | 56 | 79 | 117 | 88 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 5 | WSW 5 | — | WSW 6 | SE 11 | SW 6 | SW 7 | SW 7 | SW 7 | NE 7 | S 7 | S 8 | S 9 | ENE 8 | S 9 |
| kJ | 2 | 2 | 11 | 8 | 9 | 5 | 3 | 2 | — | 3 | 4 | 26 | 29 | 23 | 64 | 56 | 39 | 66 | 73 | 98 | 103 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | — | — | NE 6 | NE 6 | NE 7 | NE 7 | ENE 7 | SW 7 | SW 7 | SW 7 | SW 8 | S 9 | — |
| kJ | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | — | — | 1 | 1 | 8 | 25 | 37 | 42 | 24 | 25 | 60 | 99 | — |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 6 | — | — | — | — | — | — | — | SW 6 | SW 6 | WSW 6 | — | WSW 7 | WSW 7 | — | — | — | WSW 8 | WSW 8 | SW 7 |
| kJ | 5 | 11 | — | — | — | — | — | — | — | 44 | 105 | 160 | — | 163 | 271 | — | — | — | 302 | 566 | 91 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 75 | 1243 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 37 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Hainan | |||||||||||||||||||||
Best forecast wave conditions in China | |||||||||||||||||||||
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