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Surf Forecasts:
Cox Bay surf forecast from 9 Sep 2026:
- Best quality surf: Thursday 10 Sep, 11PM (local time) - 8ft (2.5m), 8s period, WNW swell with glassy winds.
- Most powerful swell: Thursday 10 Sep, 11PM (local time) - 8ft (2.5m), 8s period, WNW swell with 1,006 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 11PM (local time) - 8ft (2.5m), 8s 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 (Sep 10) at 11PM. The primary swell is predicted to be 2.5m and 8s period with a secondary swell of 2.2m and 8s. Another secondary swell of 0.6m and 17s 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 2.5m 8s and forecast to arrive on Thursday (Sep 10) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Sunday (Sep 13) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 10th Sep) | 8ft (2.5m) 8s |
| Best Surf | 11PM (Thu 10th Sep) | 8ft (2.5m) 8s |
| Most Powerful | 11PM (Thu 10th Sep) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Cox Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s look at the 16-day picture for Cox Bay. We’ve got a quiet start with some okay swell showing mid-week, but the real standouts are tucked away in the second week, so don’t sleep on the long-range charts.
The window kicks off Wednesday the 9th with some small swell around `3 ft` from the W, but the cross-onshore wind makes it feel pretty average. The water temp is sitting at `59°F`, which is only a tick above normal for this time of year, so nothing crazy there.
The first real highlight appears on Friday the 11th. The morning starts with some clouds, a glassy offshore from the S at only `3 mph`, and a clean 2-3 ft wave from the SW. The swell period is a long 17 seconds, so that’s proper groundswell energy pushing in. The combined energy is moderate (608), and it’s got that clean, lined-up feel. Cox Bay loves a SW groundswell, and with the wind staying light and glassy into the afternoon, this is your window for a smooth, fun session. Beginners will be fine in this size.
After that, the surf drops off into some skinny, small days through the middle of the month. Sunday the 20th has another neat little pulse: a 2-3 ft SW groundswell, with a solid 18-second period and glassy conditions in the morning. Worth a paddle if you’re keen on trimming on some clean lines, but it won’t be a standout.
The big news arrives Wednesday the 23rd of September. Early morning has a modest 2-3 ft SW swell, but by the afternoon, the wind shifts and we get a proper pulse of energy. The forecast shows a 10 ft swell from the WNW with a 14-second period, and the combined energy rockets to 3725 (very strong). That’s expert territory. If you’ve got the skills and the board for it, that afternoon offers some serious, powerful waves. The wind is light cross-onshore, so it won’t be totally clean, but the size and energy are undeniable.
The following day, Thursday the 24th, keeps the momentum with 7-8 ft from the W and WNW, solid period, and light winds. Still big and powerful. Cox Bay can handle this, but expect it to be heavy.
So, overall: the standout is Friday the 11th for the clean, glassy, long-period SW groundswell that’ll have the points and peaks working beautifully. The second standout is Wednesday the 23rd for the big, expert-level WNW swell in the afternoon. Just remember, anything over 8 ft is for the experienced crew only.
Rusty
Short Range ForecastMostly dry. Very mild (max 15°C on Wed morning, min 13°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Sat morning, min 12°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||
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) | W 12 | WNW 12 | WNW 6 | WNW 8 | WNW 8 | WNW 8 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SW 13 | SW 17 | SW 17 | SW 17 | WNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 228 | 228 | 186 | 365 | 604 | 427 | 346 | 310 | 416 | 365 | 255 | 245 | 211 | 164 | 144 | 118 | 85 | 103 | 106 | 106 | 86 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | glassy | glassy | glassy | cross | cross | on | off | cross-off | cross-off | off | on | on | glassy | cross | cross-on | glassy |
High Tide | 12:29PM3.16m | 00:18AM3.45m | 1:05PM3.33m | 1:07AM3.45m | 1:39PM3.45m | 1:52AM3.38m | 2:12PM3.50m | 2:36AM3.26m | 2:43PM3.50m | 3:19AM3.10m | 3:14PM3.43m | 4:01AM2.92m | 3:46PM3.31m | 4:47AM2.73m | |||||||
Low Tide | 6:15PM1.07m | 6:46AM0.30m | 7:02PM0.83m | 7:22AM0.40m | 7:45PM0.66m | 7:57AM0.57m | 8:26PM0.57m | 8:30AM0.79m | 9:06PM0.56m | 9:03AM1.04m | 9:46PM0.63m | 9:36AM1.29m | 10:28PM0.75m | ||||||||
 |  |  |  | | | | | | | |  | | | | | | | | | | |
 | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — | — | 7:43 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 14 | 15 | 14 | 13 | 14 | 14 | 14 | 14 | 16 |
Feels °C | 16 | 14 | 13 | 13 | 12 | 12 | 14 | 14 | 14 | 13 | 12 | 13 | 12 | 12 | 13 | 13 | 13 | 14 | 13 | 13 | 15 |
Swell 1 Height (m) Direction Period (s) | W 12 | WNW 12 | SSW 12 | SW 17 | SW 18 | WNW 8 | WNW 9 | WNW 9 | WNW 10 | SW 15 | WNW 9 | WNW 7 | WNW 8 | W 8 | WNW 7 | WNW 7 | WNW 6 | WNW 6 | WNW 6 | SW 12 | WNW 8 |
| kJ | 228 | 228 | 87 | 243 | 246 | 427 | 254 | 173 | 166 | 365 | 146 | 222 | 143 | 118 | 71 | 48 | 33 | 50 | 51 | 54 | 81 |
Swell 2 Height (m) Direction Period (s) | WNW 6 | SSW 13 | SW 19 | SSW 12 | SW 13 | SW 17 | SW 17 | SW 16 | SW 16 | WNW 10 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 17 | SW 16 |
| kJ | 50 | 102 | 183 | 49 | 42 | 354 | 346 | 310 | 416 | 123 | 255 | 245 | 211 | 164 | 144 | 118 | 85 | 84 | 82 | 106 | 86 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SW 19 | SSW 16 | SSW 12 | S 11 | S 11 | S 10 | WNW 11 | SSW 11 | SSW 10 | S 9 | S 9 | WSW 12 | SSE 8 | W 15 | SW 19 | SW 19 | SW 17 | SW 17 | W 12 | SW 12 |
| kJ | 120 | 91 | 25 | 50 | 22 | 21 | 8 | 40 | 25 | 33 | 27 | 13 | 14 | 6 | 17 | 57 | 54 | 103 | 106 | 11 | 37 |
Wind waves Height (m) Direction Period (s) | — | WNW 6 | WNW 6 | WNW 8 | WNW 8 | — | — | — | — | — | — | — | ESE 3 | — | — | — | — | — | — | WNW 7 | — |
| kJ | — | 33 | 186 | 365 | 604 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 47 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 119 | 165 | 123 | 123 | 165 | 0 | 0 | 0 | 1 | 93 | 483 | 0 | 0 | 123 | 0 | 93 | 1387 | 0 | 93 | 151 | 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.
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