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Big Wave Bay surfForecast / Hong Kong / China
48hr Weather and Surf, issued 7 am Friday 15 May 2026 HKTForecast update in hr min s Forecast update imminent
Big Wave Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big Wave Bay sea temperature is
25.5° C
(Which is 1.1°C colder than average for this time of year)How big are the waves at Big Wave Bay today?
The current surf forecast for Big Wave Bay at 12PM is: 0.3m 9s primary swell from a East-southeast direction and 0.6m 3s secondary swell from a East direction (forecast issued at 07:00am May 15). An open ocean swell of 0.5m 6s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HKT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 May) | 1ft (0.3m) | 9s |
| Afternoon (15 May) | 1.5ft (0.5m) | 10s |
| Evening (15 May) | 4.5ft (1.4m) | 5s |
Table - waves today at Big Wave Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 64mm), heaviest during Fri night. Warm (max 27°C on Fri afternoon, min 23°C on Fri night). Mainly strong winds. | ||||||||||||||||||||||||
Friday 15 | Saturday 16 | Sunday 17 | Mon 18 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 9 | ESE 9 | ESE 9 | E 10 | E 10 | E 5 | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 8 | E 7 | E 8 | E 6 | E 6 | E 7 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | |
29 | 17 | 17 | 49 | 49 | 90 | 138 | 108 | 170 | 460 | 590 | 672 | 672 | 869 | 447 | 292 | 249 | 357 | 595 | 707 | 681 | 605 | 599 | 562 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | |
High Tide | 6:54AM1.61m | 8:39PM1.03m | 7:21AM1.80m | 9:59PM0.96m | 7:55AM1.96m | 11:21PM0.89m | ||||||||||||||||||
Low Tide | 1:57PM0.18m | 1:18AM0.60m | 2:51PM0.00m | 1:50AM0.68m | 3:45PM-0.12m | |||||||||||||||||||
 |  | | | | | | |  |  |  |  | |  | | | | |  |  | | | | | |
 | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — | 5:41 |
 | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:55 | — | — | 6:55 |
3 | 1 | 1 | 1 | 1 | 1 | 2 | 5 | 16 | 11 | 8 | 2 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | — | 2 | 1 | 2 | 1 | |
Temp °C | 26 | 26 | 26 | 27 | 26 | 25 | 25 | 25 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 25 | 24 | 24 | 23 | 24 | 24 | 25 | 25 |
31 | 28 | 27 | 29 | 27 | 25 | 26 | 26 | 20 | 18 | 18 | 19 | 19 | 18 | 18 | 21 | 27 | 24 | 24 | 19 | 20 | 21 | 24 | 26 | |
Swell 1 Height (m) Direction Period (s) | S 6 | S 6 | S 6 | SSW 6 | SSW 6 | S 6 | SSW 5 | S 5 | S 6 | S 6 | S 6 | S 6 | SSW 6 | SSW 6 | SSW 6 | S 6 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SSW 7 |
 kJ | 23 | 23 | 16 | 18 | 12 | 15 | 9 | 14 | 23 | 27 | 22 | 22 | 13 | 13 | 26 | 84 | 77 | 69 | 58 | 32 | 30 | 19 | 18 | 9 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | E 10 | E 10 | E 10 | SSW 5 | SSW 6 | SW 6 | — | — | — | — | SSW 6 | — | — | — | — | — | — | — | — | — | — |
| kJ | 29 | 17 | 17 | 49 | 49 | 49 | 30 | 31 | 11 | — | — | — | — | 26 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | E 5 | — | — | S 5 | E 10 | ESE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 1 | — | — | 2 | 49 | 32 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | E 2 | E 3 | E 4 | E 4 | E 5 | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 8 | E 7 | E 8 | E 6 | E 6 | E 7 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
| kJ | — | 1 | 5 | 12 | 48 | 90 | 138 | 108 | 170 | 460 | 590 | 672 | 672 | 869 | 447 | 292 | 249 | 357 | 595 | 707 | 681 | 605 | 599 | 562 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 656 | 656 | 683 | 750 | 1056 | 1053 | 1043 | 1043 | 1043 | 656 | 1056 | 1056 | 1056 | 803 | 803 | 803 | 803 | 619 | 1056 | 1056 | 1441 | 803 | 803 | 803 |
Best forecast wave conditions in Hong Kong | ||||||||||||||||||||||||
Best forecast wave conditions in China | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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