Surf Forecasts:
Cox Bay surf forecast from 12 Aug 2026:
- Best quality surf: Sunday 16 Aug, 5AM (local time) - 3ft (0.9m), 17s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 2PM (local time) - 4.5ft (1.4m), 12s period, W swell with 547 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 2AM (local time) - 4.5ft (1.3m), 7s period with WNW swell.
Best Forecast Surf Conditions for Cox Bay this week:
The surf forecast for Cox Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 2AM. The primary swell is predicted to be 1.3m and 7s period with a secondary swell of 0.5m and 18s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cox Bay in the next 16 days are 1.4m 12s and forecast to arrive on Wednesday (Aug 19) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 13th Aug) | 4.5ft (1.3m) 7s |
| Best Surf | 5AM (Sun 16th Aug) | 3ft (0.9m) 17s |
| Most Powerful | 2PM (Wed 19th Aug) | 4.5ft (1.4m) 12s |
Table - best surf conditions forecast for Cox Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming our way. To be honest, the next couple of weeks are looking pretty marginal for any kind of proper session. We’ve got a long stretch of small, weak swell and tricky winds, so don’t expect any magic. The real standout, if you can call it that, is a brief window on the morning of Thursday, August 13th, and another hopeful blip on Friday, August 21st. Let’s break it down.
We start off with nothing really happening. Wednesday the 12th is a write-off with tiny 1ft swell from the SW and a cross shore wind. The water temp is sitting at 59°, which is pretty much normal for this time of year, so no surprises there. The combined wave energy is weak (244) – just not enough to get excited about.
Now, Thursday morning, August 13th, that’s our best early bet. Cox Bay wakes up with a clean 4ft swell from the W, and we’ve got a light cross-offshore breeze from the SSE. That means the waves should be nicely shaped and clean. The swell period is a short 7 seconds though, so it’s gonna be a bit weak and won’t have much punch – combined energy is only 252. It’s surfable for a beginner, but don’t expect any barrels. It’s the best we’ve got in the first week.
After that, it’s a long, bleak run. From Friday the 14th all the way through to Thursday the 20th, we’re stuck with tiny surf, mostly under 3ft, and a lot of onshore or cross-onshore wind. The swell direction wobbles between SW and SSW, and the energy stays in the moderate range (197 to 488). There’s one afternoon on Wednesday the 19th where the swell bumps up to 5ft from the W, but the wind is straight onshore and the period is a short 12 seconds, so it’s going to be a messy, choppy mess. Not worth paddling out for.
Then, on Friday morning, August 21st, we get a glimmer. Cox Bay shows clean conditions again with a light cross-offshore SSE breeze and a 2ft swell from the SSW. It’s small, but the period is a reasonable 14 seconds, so there’ll be a bit of energy behind it. The combined energy is 398 – moderate. This is your second-best window. It’s not huge, but it’ll be clean and fun for a longboard or a fish.
After that, it’s back to the doldrums. Saturday the 22nd has a moderate breeze making things choppy, and from Sunday the 23rd through to Thursday the 27th, we’re looking at tiny, weak swells with combined energy dropping as low as 121. The swell is mostly from SW or SSW, and the periods are all over the place, from 6 to 18 seconds. Nothing to get stoked about. There’s a brief spike on Tuesday the 25th afternoon with 5ft from the WNW but the period is a dismal 6 seconds and it’s onshore wind – that’s just closeouts and whitewater.
So, to sum it up: the best surf on offer is the clean, small morning sessions on Thursday, August 13th and Friday, August 21st. Both are for beginners or those who just want a gentle paddle. Everything else is a hard pass. Keep your eyes on the forecast, because it might change, but right now, it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Wed afternoon, min 13°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Sun morning, min 13°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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) | SW 18 | SW 18 | WNW 7 | W 7 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 19 | SSW 18 | SSW 18 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | WNW 7 | SSW 14 | SW 14 | SSW 14 |
Wave Graph | |||||||||||||||||||||
111 | 154 | 161 | 113 | 129 | 206 | 124 | 119 | 109 | 140 | 280 | 209 | 334 | 268 | 441 | 425 | 287 | 290 | 268 | 214 | 187 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | glassy | cross-off | cross-on | glassy | cross-off | cross-on | glassy | cross | on | cross-on | cross-on | on | on | cross | on | glassy | cross | on | cross-on |
High Tide | 1:36PM3.18m | 1:15AM3.61m | 2:15PM3.30m | 2:04AM3.53m | 2:51PM3.38m | 2:51AM3.37m | 3:26PM3.41m | 3:37AM3.16m | 4:00PM3.38m | 4:23AM2.92m | 4:35PM3.29m | 5:12AM2.69m | 5:12PM3.17m | ||||||||
Low Tide | 7:12PM1.12m | 7:52AM0.02m | 8:01PM0.94m | 8:30AM0.15m | 8:48PM0.82m | 9:05AM0.37m | 9:34PM0.77m | 9:40AM0.65m | 10:20PM0.79m | 10:14AM0.96m | 11:07PM0.87m | 10:49AM1.27m | 00:01AM0.97m | ||||||||
6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | |
— | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 16 | 15 | 15 | 16 | 14 | 15 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 |
Feels °C | 16 | 15 | 16 | 14 | 15 | 16 | 13 | 14 | 15 | 14 | 13 | 13 | 15 | 14 | 14 | 14 | 14 | 15 | 14 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 6 | WNW 7 | W 7 | WNW 7 | WNW 7 | W 6 | W 6 | W 10 | W 10 | W 10 | W 9 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 | WNW 7 | W 6 | W 6 | WNW 7 |
80 | 64 | 161 | 113 | 84 | 75 | 52 | 41 | 100 | 102 | 94 | 83 | 334 | 268 | 441 | 425 | 287 | 192 | 100 | 60 | 111 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 18 | SSW 18 | W 9 | W 9 | W 9 | WNW 6 | WNW 6 | SSW 14 | SSW 14 | SW 14 | W 12 |
111 | 154 | 150 | 95 | 129 | 206 | 124 | 119 | 109 | 103 | 280 | 209 | 79 | 59 | 57 | 25 | 24 | 268 | 268 | 214 | 187 | |
Swell 3 Height (m) Direction Period (s) | SW 14 | SSW 14 | W 12 | SW 13 | SW 13 | W 11 | W 11 | W 10 | WNW 7 | SSW 19 | SSW 14 | SSW 14 | SW 13 | SW 13 | S 9 | W 8 | W 8 | W 16 | W 15 | W 13 | SSW 14 |
53 | 80 | 27 | 44 | 44 | 22 | 21 | 18 | 18 | 140 | 140 | 140 | 44 | 88 | 2 | 33 | 33 | 5 | 38 | 88 | 178 | |
Wind waves Height (m) Direction Period (s) | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 7 | — | — | — |
— | 97 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 290 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 124 | 1254 | 0 | 0 | 2 | 0 | 0 | 1254 | 0 | 162 | 763 | 2 | 763 | 226 | 21 | 123 | 123 | 0 | 119 | 123 | 1 |
Best forecast wave conditions in Vancouver Island | |||||||||||||||||||||
Best forecast wave conditions in Canada | |||||||||||||||||||||
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Information about the Cox Bay Surf forecast
The above surf forecast table for Cox Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cox Bay can be found by selecting the local surf guide option on the grey menu. Our Cox 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 (Cox 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 Cox 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.
Cox Bay is 77 km (48 miles) from Gold River. If you plan a holiday in Vancouver Island, look for hotels and other accommodation in Gold River. Gold River has rooms for a wide range of budgets as well as car hire and transport links.











