Surf Forecasts:
How big are the waves at Riyue Bay (Riyuewan) today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 1ft (0.3m), 18s period with ESE swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 1.5ft (0.4m), 16s period with E swell.
- Evening surf: Evening surf (21 Sep, local time) - 1.5ft (0.4m), 15s period with E swell.
The current surf forecast for Riyue Bay (Riyuewan) at 5PM is: 0.4m 16s primary swell from a East direction and 0.3m 9s secondary swell from a East direction, 0.7m 6s secondary swell from a East direction (forecast issued at 01:00pm September 21). The wind direction is predicted to be cross-shore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 1ft (0.3m) | 18s |
| Afternoon (21 Sep) | 1.5ft (0.4m) | 16s |
| Evening (21 Sep) | 1.5ft (0.4m) | 15s |
Table - waves today at Riyue Bay (Riyuewan). (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 30°C on Mon afternoon, min 25°C on Mon night). Wind will be generally light. | |||||||||||||||||||||
Mon 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||||||
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) | E 17 | E 16 | E 16 | E 15 | E 15 | E 15 | E 14 | E 14 | E 13 | E 13 | E 12 | E 12 | E 11 | E 11 | E 11 | E 11 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | E 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 53 | 81 | 80 | 72 | 106 | 150 | 138 | 129 | 125 | 212 | 151 | 105 | 94 | 63 | 61 | 58 | 35 | 33 | 31 | 29 | 28 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross |
High Tide | 5:36AM1.29m | 6:52AM1.30m | |||||||||||||||||||
Low Tide | 3:11PM0.28m | 3:41PM0.28m | |||||||||||||||||||
 | | |  | | | | | | | | | | |  |  | | | | |  | |
 | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | — | — | 6:37 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:35 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 29 | 30 | 29 | 26 | 25 | 25 | 25 | 26 | 29 | 30 | 29 | 26 | 26 | 25 | 25 | 27 | 29 | 29 | 28 | 26 | 26 |
Feels °C | 32 | 32 | 32 | 30 | 29 | 29 | 29 | 30 | 32 | 32 | 32 | 30 | 30 | 29 | 29 | 31 | 32 | 31 | 30 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | E 6 | E 6 | E 16 | E 15 | E 6 | E 15 | E 14 | E 14 | E 13 | E 13 | E 12 | E 12 | E 11 | E 11 | E 11 | E 11 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ESE 4 |
| kJ | 38 | 38 | 80 | 72 | 27 | 150 | 138 | 129 | 125 | 212 | 151 | 105 | 94 | 63 | 61 | 58 | 35 | 33 | 31 | 29 | 6 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 16 | E 9 | E 9 | E 15 | E 6 | E 6 | E 6 | E 9 | SE 5 | SE 5 | SE 5 | SE 4 | — | ENE 4 | ESE 4 | ESE 4 | — | — | NE 6 | ENE 8 |
| kJ | 14 | 81 | 13 | 13 | 106 | 25 | 16 | 15 | 55 | 3 | 3 | 3 | 3 | — | 3 | 6 | 6 | — | — | 2 | 14 |
Swell 3 Height (m) Direction Period (s) | E 17 | E 9 | S 6 | S 6 | E 10 | E 10 | E 10 | E 9 | — | — | — | — | — | E 14 | SE 4 | SE 4 | — | — | — | — | ENE 7 |
| kJ | 53 | 13 | 1 | 1 | 16 | 16 | 16 | 14 | — | — | — | — | — | 4 | 3 | 3 | — | — | — | — | 4 |
Wind waves Height (m) Direction Period (s) | — | — | E 6 | E 6 | — | — | — | ENE 6 | ENE 5 | E 5 | E 5 | ENE 6 | ENE 4 | E 4 | ENE 6 | ENE 6 | NE 5 | ESE 4 | ESE 4 | ESE 4 | E 6 |
| kJ | — | — | 38 | 28 | — | — | — | 25 | 23 | 19 | 17 | 12 | 5 | 9 | 12 | 12 | 7 | 7 | 8 | 6 | 28 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 75 | 347 | 347 | 347 | 0 | 0 | 0 | 0 | 347 | 1249 | 1246 | 347 | 0 | 347 | 347 | 347 | 715 | 715 | 1246 | 715 | 353 |
Best forecast wave conditions in Hainan | |||||||||||||||||||||
Best forecast wave conditions in China | |||||||||||||||||||||
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