
Surf Forecasts:
Saint Annes surf forecast from 9 Aug 2026:
- Best quality surf: Sunday 9 Aug, 11PM (local time) - 2.5ft (0.8m), 15s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 11PM (local time) - 4.5ft (1.3m), 16s period, SSW swell with 843 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 11PM (local time) - 2.5ft (0.8m), 15s period with SSW 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 Sunday (Aug 09) at 11PM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.9m and 10s. 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 1.3m 16s and forecast to arrive on Saturday (Aug 15) 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 0.5m 13s period and expected on Tuesday (Aug 11) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sun 9th Aug) | 2.5ft (0.8m) 15s |
| Best Surf | 11PM (Sun 9th Aug) | 2.5ft (0.8m) 15s |
| Most Powerful | 11PM (Sat 15th Aug) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for Saint Annes over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s on offer.
To be honest, it’s a pretty lean run for the next couple of weeks. We’ve got a solid 16-day window ahead, but it’s a real slow grind. The first proper surf worth talking about doesn’t really show up until around the 15th of August, and even then, it’s marginal. There’s a gap of nearly a week of flat or near-flat conditions before we see anything moving.
The only spot in the frame is Saint Annes, a reef break that’s fairly consistent. The water temp is sitting at 62°, which is about average for the time of year, so nothing unusual there.
The standout period looks to be Saturday the 15th of August. Through the morning we’ll see a 3ft SSW groundswell, with a long period of 16 seconds, and the combined energy will be moderate (638). The wind is a light cross-onshore from the W at 6 mph, which is workable but not glassy. By the afternoon, the swell nudges up to 4ft from the same direction, and the energy builds to 818. It’s still marginal surf, but it’s the best we’ve got. This setup is a reef break, so that long period should wrap in nicely, offering some shape. But the cross-on wind will keep it from being pristine.
Sunday the 16th holds similar size at 3ft, but the wind stays cross-on. The following Monday and Tuesday, the 17th and 18th, the wind picks up to 12 mph from the WNW, making it cross-shore with some chop. That’s going to be messy.
Now, towards the end of the run, around the 23rd of August, we see a spike in size. The Sunday morning has a 6ft WNW swell with a short period of 8 seconds, and the wind is offshore from the SW at 3 mph. That offshore wind is a major positive, but the short period means the waves will be weaker and more crumbly. The energy is moderate (591). By the afternoon, the swell jumps to 8ft, but the wind swings cross-on from the WNW at 9 mph and the period stays short at 8 seconds. That’s sizeable, but for a reef break, over 8ft is expert-only territory, and with that short period and cross-on wind, it’s going to be a messy, powerful wall of white water. Probably more interesting for the kite crowd than paddle surfing.
So, the best window is Saturday the 15th of August into Sunday the 16th, with that 3ft to 4ft SSW groundswell. It’s not perfect, but it’s the most surfable we’ll get. The rest of the run is mostly poor conditions with cross-on winds and weak energy.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 22°C on Sun afternoon, min 15°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Wed afternoon, min 14°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 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) | SSW 15 | SSW 15 | SSW 14 | SSW 14 | WNW 10 | SW 19 | SSW 19 | SW 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 15 | SW 14 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph | |||||||||||||||||||||
259 | 242 | 239 | 168 | 161 | 184 | 140 | 154 | 316 | 190 | 264 | 261 | 201 | 245 | 372 | 214 | 360 | 582 | 545 | 635 | 407 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | on | on | glassy | on | cross-on | cross | cross-on | cross-on | glassy | on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy |
High Tide | 8:52AM0.23m | 7:25PM1.05m | 9:33AM0.32m | 8:15PM1.08m | 10:12AM0.39m | 9:02PM1.08m | 10:49AM0.45m | 9:49PM1.03m | 11:26AM0.49m | 10:36PM0.93m | 12:03PM0.52m | 11:24PM0.79m | 12:40PM0.54m | 00:16AM0.60m | |||||||
Low Tide | 1:06PM-0.12m | 2:54AM-1.17m | 2:03PM-0.16m | 3:36AM-1.22m | 2:55PM-0.21m | 4:16AM-1.22m | 3:46PM-0.27m | 4:56AM-1.15m | 4:36PM-0.32m | 5:34AM-1.04m | 5:28PM-0.35m | 6:13AM-0.88m | 6:24PM-0.38m | ||||||||
6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | |
— | 7:58 | — | — | 7:57 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:51 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 17 | 22 | 22 | 18 | 21 | 21 | 17 | 18 | 19 | 16 | 18 | 19 | 16 | 18 | 19 | 16 | 19 | 19 | 17 |
Feels °C | 21 | 22 | 17 | 22 | 22 | 19 | 20 | 21 | 17 | 17 | 18 | 16 | 17 | 18 | 16 | 17 | 17 | 16 | 18 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | WNW 10 | NW 10 | WNW 10 | WNW 10 | WNW 9 | NW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | SSW 15 | WNW 8 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SW 14 |
259 | 141 | 142 | 164 | 161 | 106 | 77 | 117 | 110 | 101 | 99 | 113 | 111 | 111 | 372 | 68 | 360 | 582 | 545 | 635 | 357 | |
Swell 2 Height (m) Direction Period (s) | WNW 8 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 13 | SW 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 8 | SW 14 | SW 14 | WNW 7 | WNW 7 | WNW 13 | SSW 16 |
32 | 242 | 239 | 168 | 139 | 137 | 87 | 154 | 316 | 190 | 264 | 261 | 201 | 245 | 76 | 214 | 214 | 43 | 30 | 98 | 407 | |
Swell 3 Height (m) Direction Period (s) | NW 11 | SW 11 | SSW 11 | SSW 11 | SW 20 | SW 19 | SSW 19 | S 12 | SSW 12 | SSW 12 | SSW 13 | S 11 | S 11 | S 10 | SW 20 | SSW 19 | WNW 8 | SW 14 | SSW 10 | SW 13 | WNW 10 |
30 | 32 | 23 | 24 | 136 | 184 | 140 | 77 | 46 | 46 | 98 | 37 | 36 | 33 | 98 | 207 | 45 | 103 | 63 | 85 | 62 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 86 | 117 | 0 | 423 | 105 | 0 | 20 | 85 | 2 | 261 | 117 | 0 | 20 | 105 | 0 | 195 | 105 | 0 | 85 | 85 | 0 |
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.











