Surf Forecasts:
Saint Annes surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 20 Aug, 5AM (local time) - 5ft (1.6m), 7s period, NW swell with glassy winds.
- Most powerful swell: Saturday 22 Aug, 11PM (local time) - 6ft (1.9m), 7s period, NW swell with 373 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 5ft (1.6m), 7s 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 Thursday (Aug 20) at 5AM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 1.2m and 7s. Another secondary swell of 0.8m and 14s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Saint Annes in the next 16 days are 1.9m 7s and forecast to arrive on Saturday (Aug 22) 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 0.7m 12s period and expected on Wednesday (Aug 26) at 11PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 20th Aug) | 5ft (1.6m) 7s |
| Best Surf | 5AM (Thu 20th Aug) | 5ft (1.6m) 7s |
| Most Powerful | 11PM (Sat 22nd Aug) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Saint Annes over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s happening at Saint Annes.
Honestly, I’ve gotta be straight with you – the next couple of weeks are a tough watch. The forecast is just a long, sad story of poor surf conditions, with hardly a moment where it all comes together. We’re looking at a solid run of days where the wind is mostly cross or cross-on from the WNW, and the swell is either too small, or the period is too short to make anything worthwhile. The waves that do show up are going to be a mess of chop and ripples. It’s a real bummer.
There’s a big gap of clean, rideable surf here. The first recommendation I can see doesn’t pop up until late in the period, and even then, it’s nothing to get excited about. For the whole first week, from Wednesday the 19th right through to the end of August, it’s just no-go. The swell energy is weak, in the 200-400 range, and the wind is just ruining any chance of a wave.
The best of a bad lot looks like it might be on Thursday afternoon, 28th August. The swell is still small at 3ft, coming from the SSW with a long period of 19 seconds. That’s a proper groundswell, and the energy is moderate (683). The wind is a gentle cross-shore, so while it’s not glassy, it’s the cleanest we’ll see. This is a reef break, so a long period swell like that is actually a good thing – it’ll stand up nicely. But at 3ft, it’s barely going to be breaking. It’s a marginal call, and you’ll be scratching for waves.
Then on Saturday afternoon, 29th August, the swell is a touch bigger at 4ft from the SSW, with a period of 16 seconds and strong energy (979). The wind is still a gentle cross-shore from the WNW. Again, not clean, but it’s the most energy we’ve seen. Still, the forecast says “poor surf conditions,” so keep your expectations low.
The water temp is about 63°F, which is normal for this time of year, so you won’t need a thick suit.
To be honest, for the whole 16-day window, there’s nothing that qualifies as a true standout. The wind is just never right. The swell is always too small or too short period, and the wind is always messing it up. If you’re desperate, keep an eye on the 28th and 29th of August, but don’t get your hopes up. This is a stretch where the forecast is solid for days with no good surf. It’s a blank run, plain and simple.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 22°C on Sat morning, min 15°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sun morning, min 15°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 14 | SSW 14 | NW 7 | WNW 6 | WNW 6 | NW 7 | WNW 6 | WNW 7 | NW 7 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 |
Wave Graph | ||||||||||||||||||||
382 | 246 | 236 | 236 | 293 | 101 | 136 | 244 | 98 | 216 | 330 | 129 | 113 | 215 | 218 | 145 | 224 | 216 | 163 | 159 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | glassy | cross-on | cross | cross | cross | cross | glassy | cross-on | cross | cross | cross-on | cross | cross-off | cross-on | cross | cross |
High Tide | 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 | 9:53AM0.21m | 7:35PM0.78m | 10:07AM0.23m | 8:17PM0.81m | |||||||
Low Tide | 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 | 1:31PM0.06m | 3:16AM-0.95m | 2:12PM-0.03m | 3:45AM-0.93m | |||||||
— | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | |
7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:42 | — | — | 7:39 | — | — | 7:38 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 16 | 21 | 21 | 16 | 21 | 21 | 17 | 22 | 21 | 17 | 22 | 21 | 16 | 20 | 20 | 16 | 20 | 20 | 15 |
Feels °C | 19 | 16 | 20 | 20 | 17 | 20 | 19 | 16 | 20 | 18 | 16 | 21 | 19 | 15 | 19 | 18 | 15 | 18 | 18 | 14 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | WNW 7 | SSW 14 | SSW 14 | WNW 7 | SSW 13 | SSW 13 | WNW 7 | SSW 13 | SSW 16 | WNW 7 | SSW 13 | SSW 13 | WNW 7 | SSW 14 | SW 17 | SW 17 | SW 16 | S 13 | SW 16 |
382 | 113 | 236 | 236 | 162 | 101 | 99 | 149 | 98 | 100 | 192 | 92 | 95 | 101 | 218 | 145 | 224 | 216 | 125 | 159 | |
Swell 2 Height (m) Direction Period (s) | WNW 13 | SSW 15 | WNW 12 | WNW 12 | SSW 14 | WNW 11 | WNW 11 | SSW 13 | WNW 10 | SSW 12 | SSW 12 | SSW 16 | SW 18 | SSW 14 | SW 18 | S 15 | S 13 | S 13 | SW 16 | S 12 |
69 | 246 | 75 | 107 | 180 | 68 | 66 | 99 | 35 | 60 | 59 | 85 | 113 | 215 | 199 | 109 | 126 | 126 | 163 | 76 | |
Swell 3 Height (m) Direction Period (s) | SW 22 | WNW 12 | SW 19 | SW 19 | WNW 12 | SW 18 | SW 18 | WNW 11 | SW 18 | WNW 11 | SSW 15 | SW 19 | SSW 16 | SW 18 | WNW 11 | SSW 12 | NW 8 | NW 8 | W 16 | W 15 |
18 | 87 | 57 | 14 | 106 | 50 | 49 | 37 | 50 | 22 | 76 | 129 | 84 | 201 | 12 | 50 | 17 | 10 | 46 | 67 | |
Wind waves Height (m) Direction Period (s) | WNW 5 | NW 7 | WNW 7 | WNW 7 | NW 7 | WNW 6 | WNW 6 | NW 7 | WNW 6 | WNW 7 | NW 7 | WNW 6 | WNW 6 | WNW 8 | WNW 8 | WNW 5 | WNW 6 | WNW 5 | WNW 5 | WNW 6 |
46 | 210 | 105 | 154 | 293 | 96 | 136 | 244 | 96 | 216 | 330 | 78 | 71 | 193 | 128 | 74 | 45 | 39 | 48 | 47 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 96 | 2 | 228 | 87 | 0 | 144 | 96 | 2 | 87 | 102 | 0 | 117 | 96 | 2 | 117 | 230 | 0 | 117 | 230 | 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.











