
Surf Forecasts:
Big Wave Bay surf forecast from 5 Jul 2026:
- Best quality surf: Friday 10 Jul, 2AM (local time) - 5ft (1.5m), 18s period, SE swell with glassy winds.
- Most powerful swell: Friday 10 Jul, 8PM (local time) - 5ft (1.6m), 18s period, SE swell with 1,660 kJ wave energy.
- Next surfable swell (1★+): Friday 10 Jul, 2AM (local time) - 5ft (1.5m), 18s period with SE swell.
Best Forecast Surf Conditions for Big Wave Bay this week:
The surf forecast for Big Wave Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 10) at 2AM. The primary swell is predicted to be 1.5m and 18s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Big Wave Bay in the next 16 days are 1.6m 18s and forecast to arrive on Friday (Jul 10) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 7s period and expected on Sunday (Jul 12) at 2AM.
| Wave Type | Time (HKT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 10th Jul) | 5ft (1.5m) 18s |
| Best Surf | 2AM (Fri 10th Jul) | 5ft (1.5m) 18s |
| Most Powerful | 8PM (Fri 10th Jul) | 5ft (1.6m) 18s |
Table - best surf conditions forecast for Big Wave Bay over the next 16 days.
Updates in hr min s Forecast update imminent
G’day, Rusty here. Look, I’ve gotta be straight with you – the next couple of weeks are a real mixed bag, and mostly a quiet one. For the first few days, it’s pretty much a write-off with tiny waves and dodgy conditions. There is a real standout window shaping up, but you’ll need to be patient. Let’s run through it day by day.
Right now, through Monday and Tuesday (6th–7th July), it’s flat and ugly. We’re looking at 0.7ft to 0.7ft of easterly slop, blown out by a fresh 19 mph southerly. Not worth wetting a board. Wednesday (8th July) sees a tiny bump, but still only 2ft–2ft from the southeast, and with onshore wind, it’s messy. The combined energy is weak (125–211).
Thursday (9th July) finally shows some life. The swell pushes up to 4ft–4ft, also from the southeast, with a long period of 19 seconds – that’s proper groundswell energy. Combined energy jumps to 920–1149 (moderate). But the wind is still cross-onshore and choppy in the morning. By Thursday afternoon the sky clears and it’s only a light breeze, but still cross-onshore. Marginal, but at least there’s something.
Now, here’s the standout. Friday the 10th of July. This is the one to circle. Early morning at Big Wave Bay, we’ve got 5ft of southeast swell with an 18-second period (solid groundswell), and it’s glassy – zero wind. Combined energy is a strong 1624. That’s the best conditions we’ll see for a while. The swell direction is a touch off the optimum (NE is best here), but for a spot that’s fairly consistent and sheltered, this is clean, powerful, and well worth the paddle. Crowds can be around sometimes, so get in early. That 5ft is a fun size for intermediates and up – beginners might find it a bit much.
Later Friday afternoon the wind swings to the southwest at 9 mph, creating cross-shore bumps, so it’ll drop off (score 2/10). Saturday morning (11th July) is clean with cross-offshore winds from the WNW, but the swell drops fast to 2ft, then 1ft by the afternoon – not enough to hold.
From Sunday the 12th July right through to the end of the forecast (21st July), it’s a flat spell. Swell heights barely scrape 0.3ft, with combined energy often in single digits (2–6). Winds vary, but it doesn’t matter – there’s no wave power to work with. The odd glassy morning (like Thursday 17th July) is just flat calm. Not a single day in that second week offers surf worth chasing.
So to wrap it up: don’t bother this week until Friday morning. If you can, get to Big Wave Bay early on the 10th of July for the cleanest, glassy 5ft southeast groundswell of the whole outlook. After that, the taps turn off. The water temperature feels about average for this time of year, nothing wild to report. It’s been a tough stretch, but that Friday window will make it worthwhile.
Rusty.
Short Range ForecastHeavy rain (total 71mm), heaviest during Mon night. Warm (max 29°C on Wed morning, min 27°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Wed night. Warm (max 32°C on Sat afternoon, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sun 12 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | E 8 | E 8 | E 8 | SE 19 | SE 18 | ESE 16 | SE 15 | SE 16 | SE 16 | SE 19 | SE 19 | SE 19 | SE 18 | SE 18 | SE 18 | SE 18 | ESE 16 | ESE 14 | ESE 13 | E 11 | E 13 |
Wave Graph | |||||||||||||||||||||
6 | 5 | 5 | 15 | 12 | 26 | 57 | 124 | 206 | 730 | 920 | 1149 | 1461 | 1624 | 1588 | 1249 | 217 | 39 | 16 | 3 | 4 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | glassy | glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross |
High Tide | 2:19AM0.94m | 11:35AM1.52m | 1:23AM1.08m | 12:23PM1.34m | 1:58AM1.24m | 1:19PM1.12m | 2:42AM1.41m | 2:31PM0.90m | 3:32AM1.58m | 7:23PM0.78m | 4:28AM1.73m | 8:54PM0.80m | 5:28AM1.87m | ||||||||
Low Tide | 6:23AM0.81m | 7:37PM0.31m | 7:39AM0.77m | 8:12PM0.40m | 8:57AM0.68m | 8:47PM0.50m | 10:15AM0.54m | 9:25PM0.61m | 11:31AM0.37m | 10:06PM0.70m | 12:41PM0.19m | 10:51PM0.76m | 1:45PM0.03m | ||||||||
— | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | |
7:10 | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | |
mm | 8 | 5 | 6 | 15 | 10 | 6 | 12 | 7 | 2 | 10 | 4 | — | — | — | — | — | — | — | — | 1 | 3 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 29 | 28 | 29 | 30 | 29 | 31 | 32 | 30 | 30 | 30 |
Feels °C | 29 | 29 | 28 | 28 | 30 | 30 | 31 | 32 | 31 | 31 | 30 | 31 | 32 | 35 | 33 | 32 | 32 | 33 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | SE 19 | SE 18 | ESE 16 | SE 15 | S 7 | S 7 | SE 19 | SE 19 | SE 19 | SE 18 | SE 18 | SE 18 | SE 18 | ESE 16 | E 10 | ESE 13 | E 11 | E 11 |
6 | 5 | 5 | 15 | 12 | 26 | 57 | 88 | 91 | 730 | 920 | 1149 | 1461 | 1624 | 1588 | 1249 | 217 | 17 | 16 | 3 | 2 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | SE 19 | ESE 9 | E 9 | E 9 | SE 16 | SE 16 | S 7 | S 7 | S 7 | S 7 | S 7 | SSW 8 | SSW 8 | E 10 | ESE 14 | — | — | E 13 |
— | — | — | 15 | 7 | 2 | 1 | 124 | 206 | 56 | 56 | 68 | 52 | 40 | 70 | 67 | 16 | 19 | — | — | 4 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 8 | E 8 | E 8 | — | — | — | — | — | — | — | ESE 14 | — | — | — |
— | — | — | — | — | — | — | 1 | 5 | 6 | — | — | — | — | — | — | — | 39 | — | — | — | |
Wind waves Height (m) Direction Period (s) | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | — | S 7 | — | — | — | — | — | SW 4 | SSW 9 | SSW 10 | SW 7 | SSW 8 | SSW 10 |
297 | 321 | 267 | 275 | 205 | 183 | 113 | 134 | — | 92 | — | — | — | — | — | 24 | 176 | 448 | 418 | 454 | 716 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 670 | 1056 | 683 | 683 | 813 | 683 | 161 | 670 | 359 | 161 | 272 | 670 | 0 | 0 | 3 | 3 | 22 | 43 | 813 | 928 | 820 |
Best forecast wave conditions in Hong Kong | |||||||||||||||||||||
Best forecast wave conditions in China | |||||||||||||||||||||
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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.











