
Surf Forecasts:
Cox Bay surf forecast from 10 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 11PM (local time) - 2.5ft (0.7m), 18s period, SW swell with glassy winds.
- Most powerful swell: Sunday 16 Aug, 5AM (local time) - 3ft (0.9m), 18s period, SW swell with 444 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 5AM (local time) - 1.5ft (0.4m), 15s period with SSW 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 Tuesday (Aug 11) at 5AM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.4m and 8s. Another secondary swell of 0.3m and 3s is also forecast. 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 0.9m 18s and forecast to arrive on Sunday (Aug 16) at 5AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 11th Aug) | 1.5ft (0.4m) 15s |
| Best Surf | 11PM (Wed 12th Aug) | 2.5ft (0.7m) 18s |
| Most Powerful | 5AM (Sun 16th Aug) | 3ft (0.9m) 18s |
Table - best surf conditions forecast for Cox Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
Alright, so we’ve got a 16-day window here at Cox Bay. Honestly, the first week is a bit of a struggle. There’s very little wave energy for the first few days, and the winds are mostly cross-on or onshore, keeping things messy. You’ll see a lot of marginal surf and poor conditions right through the first week. It’s not until the second week that things start to look a bit more promising.
The real standout in this whole period is Cox Bay itself. It’s a beach and point setup, exposed to the west, so it picks up the best of the swell. The water here is sitting at about 61°F, which is a touch warmer than what you’d usually expect for this time of year.
Let’s talk about the first decent session. On Thursday morning, 13 August, we’ll see a clean morning with a light cross-offshore breeze. The swell is a small 4ft from the WNW, but the period is short (7 seconds), so it’s not going to have much power. The combined energy is moderate (290). It’s a start, but nothing to get too excited about.
Then we hit a real gap. The next few days are mostly poor with onshore winds and small waves. The next real glimmer of hope comes on Monday morning, 17 August. Again, clean conditions with a light cross-offshore breeze from the SE. The swell is 3ft from the SSW, but this time the period is a very long 16 seconds. That’s proper groundswell, and it’s bringing moderate energy (444). For a spot like Cox Bay, which is a point and beach mix, that long period will give you some nice, clean lines, though the sets will be spaced out. It’s a good paddle out.
Tuesday morning, 18 August is another clean one. Cross-offshore wind again, light, with 3ft of SSW swell at 14 seconds. The combined energy is up to 491 (moderate). Not big, but clean and rideable. The best part of the whole forecast, though, is Tuesday afternoon, 18 August. The swell is still only 3ft from the SSW, but the energy jumps to 551. It’s a glassy afternoon with a light onshore wind that’s barely there. For a small-wave board, this is your pick of the entire 16 days. Clean, consistent, and you’ll have the place mostly to yourself (crowds are only “sometimes” here).
The following week (from 19 August onwards) gets a bit more wind-affected and the swell mixes up with shorter periods. There’s a bit more size on Wednesday morning, 19 August – 4ft from the W at 11 seconds – but the wind is onshore, so it’s average. The combined energy is strong (634), but the quality won’t be there. After that, it’s a mix of cross and onshore winds, with nothing really clean until the very end.
On Tuesday, 25 August, we get another clean window. Light rain is moving in, but the wind is cross-offshore from the SE all day. The swell is small (2ft to 2ft) from the SW, with a long 16-second period. The energy is moderate (270-289). It’s a fun little end to the forecast, but it’s not a stand-out.
In short: The first week is mostly a write-off. The best surf is on the mornings of 17 and 18 August, and the absolute best session is Tuesday afternoon, 18 August, with glassy conditions and a clean, long-period groundswell. If you can only pick one, that’s the one.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Tue morning, min 13°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Thu morning, min 13°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | SSW 16 | SSW 15 | SSW 15 | SW 20 | SW 20 | SW 19 | W 7 | SW 18 | WNW 8 | WNW 7 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph | |||||||||||||||||||||
99 | 89 | 121 | 104 | 79 | 129 | 111 | 154 | 266 | 160 | 129 | 206 | 124 | 119 | 109 | 103 | 280 | 209 | 339 | 334 | 397 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | on | glassy | cross | on | glassy | cross-off | glassy | cross-on | cross | on | cross-on | cross-on | on | glassy | glassy | on | on |
High Tide | 12:11PM2.85m | 11:23PM3.55m | 12:56PM3.02m | 00:21AM3.62m | 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 | |||||||
Low Tide | 5:23PM1.57m | 6:26AM0.09m | 6:20PM1.34m | 7:12AM0.00m | 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 | ||||||||
6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | |
— | 8:47 | — | — | 8:46 | — | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:37 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 15 | 15 | 16 |
Feels °C | 14 | 12 | 13 | 15 | 13 | 13 | 15 | 15 | 14 | 14 | 15 | 13 | 15 | 13 | 13 | 14 | 13 | 12 | 15 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | W 5 | SSW 15 | SSW 15 | SW 15 | SSW 14 | W 5 | W 7 | W 6 | WNW 8 | WNW 7 | WNW 7 | WNW 6 | W 6 | WNW 6 | W 8 | W 10 | W 10 | W 9 | SSW 16 | SSW 16 | SSW 16 |
24 | 89 | 121 | 104 | 79 | 51 | 107 | 120 | 266 | 160 | 111 | 70 | 86 | 56 | 46 | 71 | 121 | 81 | 339 | 334 | 397 | |
Swell 2 Height (m) Direction Period (s) | SSW 16 | W 13 | W 3 | W 8 | W 8 | SW 19 | SW 18 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 6 | W 5 | SSW 18 | SSW 18 | W 9 | W 9 | W 8 |
99 | 30 | 3 | 31 | 18 | 129 | 111 | 154 | 150 | 95 | 129 | 206 | 124 | 119 | 26 | 20 | 280 | 209 | 78 | 76 | 51 | |
Swell 3 Height (m) Direction Period (s) | W 10 | WNW 9 | W 9 | SW 20 | SW 20 | SSW 13 | SW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | W 11 | W 11 | W 8 | SW 15 | SW 14 | SSW 14 | SSW 14 | SW 13 | SW 13 | S 9 |
33 | 16 | 23 | 98 | 60 | 70 | 53 | 80 | 44 | 44 | 44 | 22 | 22 | 21 | 109 | 103 | 140 | 140 | 27 | 85 | 7 | |
Wind waves Height (m) Direction Period (s) | WNW 5 | W 4 | NW 3 | — | — | W 5 | — | — | — | — | — | — | — | — | WNW 7 | — | NW 6 | NW 5 | — | — | — |
36 | 9 | 2 | — | — | 61 | — | — | — | — | — | — | — | — | 70 | — | 15 | 7 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 162 | 687 | 9 | 321 | 1509 | 0 | 119 | 1021 | 0 | 0 | 1424 | 217 | 763 | 763 | 226 | 687 | 226 | 0 | 145 | 226 | 0 |
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.











