Surf Forecasts:
Big Wave Bay surf forecast from 13 Jul 2026:
- Most powerful swell: Wednesday 15 Jul, 2AM (local time) - 2.5ft (0.8m), 7s period, SE swell with 60 kJ wave energy.
Best Forecast Surf Conditions for Big Wave Bay this week:
The most powerful waves expected at Big Wave Bay in the next 16 days are 0.8m 7s and forecast to arrive on Wednesday (Jul 15) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 9s period and expected on Monday (Jul 20) at 8AM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Wed 15th Jul) | 2.5ft (0.8m) 7s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
Alright folks, Rusty here again. I’ve given the charts a proper once-over for our coast, and I’ve got to be honest – it’s a rough one. There are no quality surf options lined up for the entire 16-day window. It’s a total flat spell.
The first read shows Monday, July 13th, with a tiny 0.3ft swell out of the SE. The wave energy is only 5, which is as weak as it gets. That’s not a wave, it’s a ripple. That combined energy figure never gets into even moderate territory, topping out at just 39 on Tuesday morning. The water is sitting at 84°F, and with a tiny anomaly of 0.4°F, it’s pretty average for this time of year.
For Big Wave Bay, the swell is almost non-existent from the 13th through to the 28th of July. The winds are messy, with cross-shore and cross-onshore breezes, and most days have thunderstorms or light rain threatening. The Tuesday morning of the 14th came the closest to a clean-looking chart with that light 6 mph cross-offshore breeze, but with only 2ft of short period swell at 7 seconds, it just wouldn’t have had the power to wrap in here. This spot is sheltered from anything decent.
We don’t even see a big swell building any strength. Everything is flat and still. Through the first week, the outlook stays poor with no rideable waves. The second week is the same story – July 22nd has some glassy conditions but absolutely zero swell, so you’re just looking at a mirror-flat ocean.
Look, this area has its quiet periods, and a blank run like this isn’t out of the ordinary. There’s just no swell energy in the water. For a spot that’s a good beginner wave when it’s working, it’s a case of leaving the board in the car. Forecasts can change, but for now, it’s a total day off.
Rusty.
Short Range ForecastHeavy rain (total 82mm), heaviest during Tue night. Warm (max 30°C on Mon morning, min 26°C on Tue morning). Winds increasing (calm on Mon morning, strong winds from the SW by Tue night). | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Thu morning. Warm (max 30°C on Fri afternoon, min 27°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SE 12 | SE 7 | ESE 7 | ESE 7 | ESE 6 | SE 7 | S 8 | S 8 | S 8 | S 8 | S 8 | E 10 | E 10 | E 9 | SE 6 | E 8 | E 8 | E 8 | E 9 | SW 3 | E 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 9 | 30 | 35 | 14 | 60 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 5 | 1 | 5 | 1 | 2 | 3 | 1 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-off | cross | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | on | off |
High Tide | 10:48PM0.82m | 7:29AM2.06m | 11:29PM0.82m | 8:26AM2.07m | 00:07AM0.82m | 9:17AM2.02m | 00:42AM0.85m | 10:04AM1.89m | 1:14AM0.91m | 10:44AM1.71m | 1:45AM1.00m | 11:17AM1.49m | 2:12AM1.10m | ||||||||
Low Tide | 2:43PM-0.07m | 00:38AM0.78m | 3:36PM-0.12m | 1:36AM0.75m | 4:24PM-0.11m | 2:34AM0.72m | 5:07PM-0.04m | 3:34AM0.70m | 5:45PM0.07m | 4:35AM0.70m | 6:18PM0.19m | 5:38AM0.70m | 6:48PM0.32m | ||||||||
 | |  |  | | | | | | |  | | | |  |  | | | | | | |
 | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:08 | — | — | 7:08 | — |
mm | — | — | 5 | 16 | 12 | 26 | 5 | 4 | 14 | 7 | — | 4 | 2 | — | — | — | — | 2 | 2 | 3 | 17 |
Temp °C | 30 | 30 | 29 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 29 | 30 | 29 | 29 | 30 | 29 | 30 | 30 | 28 |
Feels °C | 35 | 33 | 33 | 30 | 31 | 26 | 26 | 30 | 29 | 31 | 32 | 32 | 33 | 33 | 33 | 33 | 33 | 32 | 34 | 34 | 33 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 10 | S 9 | S 10 | ESE 6 | SE 7 | S 8 | S 8 | — | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | E 8 | S 8 | S 8 | S 9 | S 8 |
| kJ | 125 | 271 | 164 | 307 | 14 | 60 | 454 | 291 | — | 313 | 223 | 169 | 133 | 138 | 111 | 146 | 1 | 190 | 157 | 220 | 266 |
Swell 2 Height (m) Direction Period (s) | S 11 | SE 7 | ESE 7 | ESE 7 | ESE 10 | — | — | — | — | — | — | E 10 | E 10 | E 9 | SE 6 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 |
| kJ | 57 | 7 | 30 | 35 | 10 | — | — | — | — | — | — | 2 | 2 | 2 | 5 | 1 | 5 | 1 | 2 | 2 | 1 |
Swell 3 Height (m) Direction Period (s) | SE 12 | ESE 10 | E 8 | SE 10 | — | — | — | — | — | — | — | — | — | — | E 9 | — | — | — | — | — | — |
| kJ | 5 | 9 | 1 | 4 | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | S 9 | SSW 9 | — | — | S 8 | — | — | — | — | — | — | — | S 8 | SSW 8 | — | SW 3 | SSW 8 |
| kJ | — | — | — | — | 517 | 297 | — | — | 263 | — | — | — | — | — | — | — | 187 | 284 | — | 3 | 471 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 937 | 813 | 581 | 6 | 581 | 683 | 841 | 832 | 683 | 832 | 1708 | 683 | 40 | 841 | 40 | 144 | 1862 | 40 | 6 | 40 | 40 |
Best forecast wave conditions in Hong Kong | |||||||||||||||||||||
Best forecast wave conditions in China | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Big Wave Bay Surf forecast
The above surf forecast table for Big Wave Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Big Wave Bay can be found by selecting the local surf guide option on the grey menu. Our Big Wave Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Big Wave Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Big Wave Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Hong Kong? If you are looking for accommodation near Big Wave Bay, camping, hotels and holiday cottages in Hong Kong, consider staying in Hong Kong which is 9 km (6 miles) away. Other places in and around Hong Kong where you can find information about places to rent, and car hire include Aberdeen which is 10 km (6 miles) away, Kowloon, Shenzhen and Yantian.
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