Surf Forecasts:
Saint Annes surf forecast from 16 Sep 2026:
- Best quality surf: Monday 21 Sep, 2AM (local time) - 7ft (2.1m), 7s period, NW swell with glassy winds.
- Most powerful swell: Monday 21 Sep, 2AM (local time) - 7ft (2.1m), 7s period, NW swell with 479 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 11PM (local time) - 3.5ft (1.0m), 8s period with WNW 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 Tuesday (Sep 15) at 11PM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.4m and 16s. 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 2.1m 7s and forecast to arrive on Monday (Sep 21) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 12s period and expected on Thursday (Sep 17) at 5PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 15th Sep) | 3.5ft (1.0m) 8s |
| Best Surf | 2AM (Mon 21st Sep) | 7ft (2.1m) 7s |
| Most Powerful | 2AM (Mon 21st Sep) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Saint Annes over the next 16 days.
The Lowdown
Right, Rusty here again. Let’s talk about Saint Annes in feet and degrees.
Water’s running at 63°F, pretty much what you’d expect for this time of year.
Truth is, it’s a bleak outlook for the most part. For the first week and a half, you’re looking at dribbly little waves. Swell heights from about 2ft to 5ft, mostly from the WNW or SSW, with short or very long periods, but the wind is all wrong. It’s cross or onshore almost daily, keeping the surface choppy and the shape ruined. Wave energy sits in the moderate range, between 300 and 500, but that means nothing when the wind’s trashing it.
There’s a real dry spell from Tuesday 15th right through to Tuesday 22nd September. Hardly a single session worth getting wet for.
The one and only gem in the rough is Wednesday 23rd September. Come morning, you’ll find glassy perfection with a light onshore breeze from the SW turning into a light offshore. The swell is a clean 3ft groundswell from the SW, with a 15-second period, pumping right into the optimum WNW direction at this reef. The combined energy is moderate at 563. This is a true stand-out for advanced surfers. Expect clean, lined-up waves, and because the conditions are that good, you can bet the crowds will be there too.
After that morning, the whole thing fades into small, bumpy leftovers for the rest of the month. Set your alarm for the 23rd.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Thu afternoon, min 13°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Fri morning, min 14°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | WNW 9 | WNW 9 | WNW 8 | SW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | NW 7 | SW 17 | SW 17 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 311 | 212 | 128 | 121 | 197 | 198 | 288 | 196 | 242 | 236 | 236 | 181 | 255 | 375 | 311 | 375 | 375 | 479 | 465 | 465 | 459 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross | glassy | cross-on | cross | cross-off | cross-on | cross | glassy | cross | cross | glassy | cross | cross | glassy |
High Tide | 12:57PM0.65m | 2:43AM0.19m | 1:33PM0.63m | 4:27AM0.11m | 2:13PM0.61m | 6:59AM0.12m | 3:01PM0.58m | 4:02PM0.55m | 8:47AM0.22m | 5:11PM0.55m | 8:53AM0.24m | 6:17PM0.56m | |||||||||
Low Tide | 8:11PM-0.68m | 7:13AM-0.10m | 9:18PM-0.69m | 7:36AM0.03m | 10:29PM-0.71m | 7:33AM0.12m | 11:37PM-0.74m | 00:35AM-0.77m | 11:24AM0.19m | 1:22AM-0.78m | 12:40PM0.12m | 2:00AM-0.78m | |||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 6:45 | — | — | 6:46 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — |
 | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 15 | 17 | 18 | 14 | 17 | 19 | 15 | 21 | 21 | 17 | 21 | 20 | 15 | 18 | 19 | 14 | 19 | 19 | 16 |
Feels °C | 18 | 17 | 15 | 17 | 16 | 13 | 15 | 16 | 14 | 20 | 18 | 17 | 19 | 17 | 14 | 17 | 16 | 12 | 16 | 15 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SW 19 | WNW 6 | SW 18 | SW 18 | WNW 7 | WNW 7 | SW 18 | WNW 7 | WNW 7 | SW 17 | WNW 9 |
| kJ | 311 | 212 | 128 | 92 | 113 | 84 | 288 | 196 | 242 | 165 | 236 | 90 | 255 | 375 | 125 | 125 | 375 | 197 | 117 | 465 | 199 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 16 | SSW 17 | SSW 16 | WNW 8 | S 12 | WNW 8 | SW 19 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SW 18 | SSW 12 | SW 17 | SW 17 | SSW 12 | SW 17 |
| kJ | 127 | 88 | 88 | 121 | 197 | 198 | 55 | 45 | 64 | 236 | 105 | 101 | 99 | 67 | 311 | 375 | 49 | 358 | 465 | 47 | 459 |
Swell 3 Height (m) Direction Period (s) | SW 12 | SSW 20 | SSW 19 | SSW 18 | S 13 | SSW 13 | SW 21 | SW 21 | SW 20 | S 11 | S 11 | SW 19 | S 10 | S 10 | SSW 12 | SSW 12 | S 10 | SSW 13 | SSW 13 | — | SSW 12 |
| kJ | 23 | 80 | 74 | 107 | 31 | 53 | 116 | 162 | 148 | 36 | 20 | 181 | 17 | 16 | 50 | 48 | 2 | 55 | 55 | — | 46 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | WNW 8 | NW 9 | WNW 5 | WNW 5 | NW 6 | WNW 6 | WNW 6 | NW 7 | WNW 7 | WNW 6 | NW 7 | NW 7 | WNW 9 | — |
| kJ | — | — | — | — | — | — | — | 82 | 123 | 7 | 98 | 181 | 78 | 111 | 261 | 251 | 191 | 479 | 247 | 244 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 20 | 117 | 0 | 85 | 117 | 0 | 85 | 96 | 0 | 228 | 96 | 0 | 222 | 96 | 0 | 96 | 144 | 0 | 117 | 96 | 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.
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