Surf Forecasts:
Rosie's Bay surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 20 Aug, 5AM (local time) - 3.5ft (1.0m), 11s period, W swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 8AM (local time) - 4.5ft (1.4m), 11s period, W swell with 457 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 3.5ft (1.0m), 11s period with W swell.
Best Forecast Surf Conditions for Rosie's Bay this week:
The surf forecast for Rosie's Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 5AM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 1.1m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Rosie's Bay in the next 16 days are 1.4m 11s and forecast to arrive on Thursday (Aug 20) at 8AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Saturday (Aug 22) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 20th Aug) | 3.5ft (1.0m) 11s |
| Best Surf | 5AM (Thu 20th Aug) | 3.5ft (1.0m) 11s |
| Most Powerful | 8AM (Thu 20th Aug) | 4.5ft (1.4m) 11s |
Table - best surf conditions forecast for Rosie's Bay over the next 16 days.
The Lowdown
Alright, this is Rusty, and I'm looking at the outlook for Rosie's Bay over the next couple of weeks. Honestly, the first week is going to be a bit of a grind. The waves are there, but they're small and the wind is mostly from the wrong direction. There's no real standout action for the first several days.
It gets interesting right at the end of the month, Monday the 31st of August. You've got a glassy morning with a clean 3 ft of SSW swell. It won't be huge, but the (combined energy of all swells directed here) is a solid 428, and with glassy conditions, it'll be the cleanest surf of the first week.
But the real standout, the one you need to circle, is Tuesday the 1st of September. The morning kicks off absolutely perfect – a glassy 5 ft of SSW swell on a short period, with a (combined energy of all swells directed here) reading of 649. The water temp is about average for this time of year at this spot. This is the pick of the window for a session. The afternoon sees the swell jump to a solid 8 ft from the SW with a 10-second period, and the energy rockets to 1298. That's a serious amount of juice, and while the wind turns light cross-shore, that size might be a handful for the intermediates and beginners as it gets close to the expert-only range. For the experienced crew, the whole day on the 1st is the time to be in the water.
After that, it backs off again into smaller, wind-affected conditions for the first week of September. The 30th of August has a marginal morning with a 3 ft SSW swell, but the 31st is where you want to be for the first real taste of good waves, before that pumping Tuesday. A couple of days in the middle of the window are a write-off, so save your energy for that final part of the run.
Alright, stay stoked, and I'll catch you in the water.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat afternoon. Very mild (max 19°C on Fri morning, min 14°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Sat night. Very mild (max 16°C on Mon afternoon, min 14°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 | W 11 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | WNW 8 | WNW 8 | W 8 | W 8 | W 8 | SW 19 | SW 18 | SW 18 | SW 18 | WSW 16 | SW 17 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 237 | 396 | 273 | 202 | 186 | 183 | 178 | 109 | 104 | 76 | 78 | 65 | 129 | 114 | 208 | 194 | 147 | 183 | 264 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | glassy | glassy | glassy | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 7:24AM2.33m | 6:51PM2.92m | 9:06AM2.30m | 8:02PM2.86m | 10:29AM2.39m | 9:13PM2.88m | 11:20AM2.52m | 10:13PM2.96m | 11:58AM2.66m | 11:04PM3.06m | 12:29PM2.79m | 11:49PM3.16m | |||||||
Low Tide | 1:04AM1.06m | 12:18PM1.78m | 2:17AM1.09m | 1:34PM1.93m | 3:29AM1.04m | 3:13PM1.96m | 4:32AM0.93m | 4:22PM1.87m | 5:22AM0.79m | 5:12PM1.73m | 6:02AM0.66m | 5:53PM1.57m | |||||||
 |  | |  | | |  | |  |  | | | | | | | |  | | |
 | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — |
 | 8:31 | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — |
mm | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 17 | 18 | 19 | 17 | 17 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 15 | 15 | 15 | 14 |
Feels °C | 17 | 17 | 16 | 19 | 20 | 17 | 18 | 13 | 13 | 16 | 15 | 14 | 15 | 15 | 15 | 14 | 14 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | W 11 | WNW 8 | WNW 8 | W 8 | W 8 | W 8 | WNW 8 | WNW 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | SW 16 |
| kJ | 173 | 396 | 151 | 202 | 165 | 173 | 140 | 109 | 104 | 76 | 78 | 55 | 52 | 48 | 47 | 81 | 44 | 32 | 264 |
Swell 2 Height (m) Direction Period (s) | W 11 | SSW 16 | W 11 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SW 19 | SW 18 | SW 18 | SW 18 | WSW 16 | SW 17 | WSW 15 |
| kJ | 237 | 220 | 144 | 188 | 186 | 183 | 178 | 101 | 99 | 67 | 67 | 65 | 129 | 114 | 208 | 194 | 147 | 183 | 71 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | W 15 | SSW 16 | W 11 | W 13 | SW 20 | SW 18 | SW 18 | SW 18 | SW 20 | SW 16 | SW 16 | SSW 15 | SSW 15 | SSW 12 | SSW 14 | SSW 14 | SSW 14 | SSW 13 |
| kJ | 223 | 4 | 273 | 58 | 3 | 15 | 50 | 49 | 49 | 66 | 66 | 41 | 42 | 42 | 30 | 64 | 63 | 65 | 59 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SE 3 | SE 3 | — | — | — | — | — | WNW 2 | — | — | — | WNW 4 |
| kJ | — | — | — | — | — | — | — | 4 | 3 | — | — | — | — | — | 1 | — | — | — | 25 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 120 | 145 | 0 | 0 | 0 | 0 | 1 | 1 | 218 | 227 | 1020 | 0 | 120 | 748 | 135 | 227 | 826 | 93 |
Best forecast wave conditions in Vancouver Island | |||||||||||||||||||
Best forecast wave conditions in Canada | |||||||||||||||||||
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Information about the Rosie's Bay Surf forecast
The above surf forecast table for Rosie's Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rosie's Bay can be found by selecting the local surf guide option on the grey menu. Our Rosie's 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 (Rosie's 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 Rosie's 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.
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