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 8AM is: 0.9m 8s primary swell from a South direction (forecast issued at 01:00am August 18). An open ocean swell of 0.4m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| 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 74mm), heaviest during Thu night. Warm (max 31°C on Tue morning, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||||||||||
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) | S 8 | S 8 | S 8 | 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 | S 8 | S 8 | S 8 | WSW 7 | S 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 127 | 124 | 98 | 76 | 74 | 72 | 68 | 74 | 86 | 84 | 86 | 90 | 111 | 105 | 98 | 103 | 109 | 82 | 61 | 60 | 58 | 89 | 209 | 116 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | off | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | glassy | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:52AM1.12m | 2:05PM0.88m | 2:16AM1.21m | 3:16PM0.73m | 2:44AM1.27m | |||||||||||||||||||
Low Tide | 8:25AM0.57m | 7:18PM0.62m | 9:48AM0.53m | 6:52PM0.66m | 11:27AM0.48m | |||||||||||||||||||
 |  |  | |  |  | | | | | | | | | | | | | | | | | | | |
 | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:02 | — | — |
mm | 1 | — | — | — | 3 | 6 | 3 | 1 | — | 2 | 2 | 1 | 2 | 4 | 3 | 1 | 1 | 2 | 4 | 5 | 4 | 8 | 1 | 1 |
Temp °C | 28 | 27 | 28 | 31 | 31 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 26 | 27 | 26 | 26 | 27 | 28 | 28 | 26 | 27 | 27 |
Feels °C | 33 | 31 | 33 | 36 | 37 | 32 | 34 | 32 | 32 | 32 | 32 | 32 | 33 | 32 | 31 | 32 | 31 | 30 | 32 | 32 | 33 | 29 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | 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 | S 8 | S 8 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 127 | 124 | 98 | 76 | 74 | 72 | 68 | 74 | 86 | 84 | 86 | 90 | 111 | 105 | 98 | 103 | 109 | 82 | 61 | 60 | 58 | 81 | 121 | 104 |
Swell 2 Height (m) Direction Period (s) | WSW 5 | SW 5 | — | SW 5 | E 9 | SW 6 | SW 6 | SW 6 | WSW 6 | WSW 5 | E 10 | — | NE 6 | SW 6 | SW 6 | SW 6 | ENE 8 | NE 8 | NE 7 | ENE 7 | ENE 7 | S 8 | S 8 | S 8 |
| kJ | 3 | 1 | — | 7 | 2 | 15 | 8 | 8 | 3 | 3 | 2 | — | 2 | 5 | 14 | 20 | 39 | 45 | 44 | 37 | 47 | 89 | 116 | 116 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | SE 10 | SE 10 | NE 6 | NE 6 | NE 8 | SW 6 | SW 6 | SW 7 | SW 7 | SW 7 | SW 8 | SW 8 | — |
| kJ | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 4 | 1 | 6 | 22 | 21 | 20 | 25 | 25 | 18 | 28 | 45 | — |
Wind waves Height (m) Direction Period (s) | — | WSW 5 | WSW 5 | WSW 5 | SW 6 | WSW 6 | — | — | — | — | — | — | WSW 4 | SW 6 | SW 6 | — | — | — | — | NNW 2 | NNW 3 | — | WSW 7 | SW 7 |
| kJ | — | 10 | 9 | 44 | 11 | 63 | — | — | — | — | — | — | 4 | 8 | 91 | — | — | — | — | 1 | 1 | — | 209 | 73 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 1763 | 75 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 881 | 982 |
Best forecast wave conditions in Hainan | ||||||||||||||||||||||||
Best forecast wave conditions in China | ||||||||||||||||||||||||
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