Surf Forecasts:
Saint Annes surf forecast from 17 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 2AM (local time) - 6ft (1.9m), 8s period, NW swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 2AM (local time) - 6ft (1.9m), 8s period, NW swell with 416 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 2AM (local time) - 6ft (1.9m), 8s period with NW swell.
Best Forecast Surf Conditions for Saint Annes this week:
The surf forecast for Saint Annes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 2AM. The primary swell is predicted to be 1.9m and 8s period with a secondary swell of 1.5m and 7s. Another secondary swell of 0.9m and 14s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Saint Annes in the next 16 days are 1.9m 8s and forecast to arrive on Wednesday (Aug 19) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 14s period and expected on Monday (Aug 24) at 8AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 19th Aug) | 6ft (1.9m) 8s |
| Best Surf | 2AM (Wed 19th Aug) | 6ft (1.9m) 8s |
| Most Powerful | 2AM (Wed 19th Aug) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Saint Annes over the next 16 days.
The Lowdown
G'day, it's Rusty here. Let's be straight with you—this Saint Annes (reef) outlook is a bit of a tough one. The 16-day window is mostly a write-off for decent waves, but there's a single, interesting window right at the end that's worth a mention.
The first real standout, and the only session I'd really get excited about, is on Monday the 31st of August. The stars briefly align for a glassy morning. We're looking at a 3ft SSW swell with a solid 16-second period, which is that long-period groundswell that these reefs love. The combined energy sits at 843 (moderate), and with the wind dead calm and glassy, it'll be the cleanest you'll see all fortnight. The optimum swell direction is WNW, so this SSW swell is a bit off-angle, but for a sheltered reef, it'll still offer some fun, lined-up waves. Do keep in mind, crowds are often an issue, but on a glassy morning like that, you'll want to be out early.
The rest of the run is a real grind. From Monday the 17th of August right through to Sunday the 30th of August, the conditions are consistently poor or marginal. The wind is almost always from the WNW or W, blowing cross or cross-onshore, so the surface is choppy or bumpy. Swell heights bounce around between 2ft and 6ft, but the energy is all over the place—some days it's weak (like 167), and on others it's moderate (up to 737) but the wind just ruins it. The wind shifts to a cross-on from the west on the 20th and 21st, and the swell period drops to a short, weak 6-second windswell on the 21st and 23rd, making it messy. There's a long, unattractive gap from the 21st to the 30th where nothing is really rideable. The best of the rest is the Thursday the 28th of August afternoon, with a 2ft SW swell at 17 seconds and a light cross-shore, but it's still only marginal.
The water temp is about average for the time of year, so no dramas there. For a sheltered reef, it's a classic case of waiting for the right wind. The good news is that the spot does break fairly consistently, so it tends not to stay poor forever. If you're an advanced surfer, keep your eye on the 31st; otherwise, it's a pretty quiet stretch.
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Wed morning, min 15°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Thu morning, min 17°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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 15 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | NW 8 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | WNW 7 | SSW 13 | WNW 8 | WNW 7 | WNW 6 | WNW 7 | SW 19 | SW 18 | SW 18 |
Wave Graph | |||||||||||||||||||||
334 | 330 | 264 | 397 | 298 | 416 | 348 | 382 | 246 | 261 | 236 | 180 | 101 | 99 | 256 | 118 | 145 | 162 | 129 | 112 | 217 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross-off | cross | cross | cross | cross-on | cross-on | glassy | cross-on | cross | glassy | cross | cross-on | glassy | cross-on | cross | cross |
High Tide | 2:01PM0.55m | 2:30AM0.22m | 2:45PM0.56m | 4:15AM0.09m | 3:33PM0.58m | 6:22AM0.06m | 4:25PM0.61m | 8:09AM0.12m | 5:17PM0.64m | 9:07AM0.17m | 6:06PM0.69m | 9:35AM0.20m | 6:52PM0.74m | ||||||||
Low Tide | 8:39PM-0.43m | 8:08AM-0.31m | 10:01PM-0.49m | 8:47AM-0.14m | 11:21PM-0.59m | 9:33AM-0.00m | 00:29AM-0.71m | 10:37AM0.09m | 1:23AM-0.82m | 11:48AM0.13m | 2:07AM-0.90m | 12:45PM0.12m | 2:44AM-0.94m | ||||||||
6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | |
— | 7:49 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:42 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 17 | 21 | 21 | 18 | 23 | 23 | 18 | 23 | 23 | 17 | 23 | 22 | 18 | 23 | 23 | 18 | 23 | 23 | 17 |
Feels °C | 18 | 17 | 16 | 19 | 19 | 17 | 21 | 22 | 18 | 22 | 22 | 16 | 23 | 21 | 19 | 21 | 21 | 19 | 23 | 22 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | WNW 6 | SSW 16 | SSW 16 | WNW 7 | WNW 7 | SSW 16 | WNW 7 | WNW 7 | SSW 14 | WNW 7 | WNW 7 | SSW 13 | WNW 8 | SSW 13 | SSW 16 | WNW 7 | SSW 13 | SSW 13 | WNW 6 |
334 | 330 | 71 | 397 | 298 | 249 | 111 | 382 | 172 | 115 | 236 | 167 | 85 | 99 | 256 | 96 | 100 | 162 | 92 | 65 | 96 | |
Swell 2 Height (m) Direction Period (s) | WNW 9 | WNW 9 | SSW 14 | S 10 | SSW 13 | SSW 14 | SSW 15 | WNW 13 | SSW 15 | SSW 14 | WNW 12 | SSW 14 | SSW 13 | WNW 11 | SSW 13 | WNW 10 | SSW 12 | SSW 12 | SSW 16 | SW 18 | SSW 14 |
17 | 17 | 264 | 2 | 64 | 312 | 348 | 69 | 246 | 236 | 121 | 180 | 101 | 66 | 99 | 33 | 59 | 59 | 85 | 112 | 163 | |
Swell 3 Height (m) Direction Period (s) | S 10 | S 10 | WNW 9 | S 10 | WNW 13 | WNW 15 | NW 14 | SW 22 | WNW 12 | WNW 11 | SW 19 | WNW 12 | WNW 11 | SW 18 | SW 18 | SW 18 | WNW 10 | SSW 15 | SW 19 | SSW 16 | SW 18 |
7 | 7 | 16 | 2 | 17 | 21 | 48 | 18 | 87 | 115 | 14 | 75 | 66 | 49 | 49 | 50 | 33 | 76 | 129 | 84 | 201 | |
Wind waves Height (m) Direction Period (s) | WNW 5 | WNW 5 | WNW 6 | WNW 6 | WNW 6 | NW 8 | WNW 7 | WNW 6 | — | NW 7 | WNW 7 | — | — | WNW 6 | — | WNW 7 | WNW 6 | — | WNW 7 | WNW 6 | NW 7 |
19 | 42 | 124 | 110 | 191 | 416 | 230 | 119 | — | 261 | 117 | — | — | 78 | — | 118 | 145 | — | 88 | 87 | 217 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 87 | 96 | 2 | 117 | 96 | 0 | 117 | 96 | 2 | 85 | 117 | 0 | 85 | 87 | 0 | 144 | 87 | 0 | 117 | 96 | 2 |
Best forecast wave conditions in San Luis Obispo | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Saint Annes Surf forecast
The above surf forecast table for Saint Annes provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Saint Annes can be found by selecting the local surf guide option on the grey menu. Our Saint Annes 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 (Saint Annes) 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 Saint Annes 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.
Saint Annes is 4 km (2 miles) from Port San Luis. If you plan a vacation in San Luis Obispo, look for hotels and other accommodation in Port San Luis. Port San Luis has rooms for a wide range of budgets as well as car hire and transport links.











