Surf Forecasts:
Saint Annes surf forecast from 21 Aug 2026:
- Best quality surf: Thursday 27 Aug, 11PM (local time) - 7ft (2.2m), 8s period, NW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 2AM (local time) - 4.5ft (1.4m), 13s period, SSW swell with 623 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 5AM (local time) - 2.5ft (0.7m), 14s 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 Friday (Aug 21) at 5AM. The primary swell is predicted to be 0.7m and 14s period with a secondary swell of 1.0m and 6s. 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 1.4m 13s and forecast to arrive on Friday (Aug 28) 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 1.3m 14s period and expected on Thursday (Aug 27) at 2AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 21st Aug) | 2.5ft (0.7m) 14s |
| Best Surf | 11PM (Thu 27th Aug) | 7ft (2.2m) 8s |
| Most Powerful | 2AM (Fri 28th Aug) | 4.5ft (1.4m) 13s |
Table - best surf conditions forecast for Saint Annes over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about the surf coming up at Saint Annes.
Right off the bat, I've got to be straight with you – this 16-day window is a tough one for paddle surfing. The setup here is a sheltered reef break (Saint Annes) and the wind is nearly always coming from the WNW, which is cross or cross-onshore here. That’s killing the quality for most of the period. There are long gaps of nothing, like the first whole week through Friday the 28th of August is basically a write-off for any decent wave. The wind is just too messy.
You are looking at a long, quiet stretch until we get to the tail end of the forecast. The only time things start to look interesting is around Friday the 4th of September. That morning, Saint Annes sees a solid 8ft swell from the NW, with a period of 11 seconds. That’s proper groundswell energy, and the energy is strong. The wind is light cross-onshore at just 6 mph, so it should be fairly clean. That’s the standout window. Keep in mind, at 8ft, this is strictly for experienced surfers only. The long period (11s) will mean better-shaped waves and longer waits between sets, which makes paddling out easier for the crew who know what they’re doing.
The morning of Saturday the 5th of September still has some life, with a dropping 5ft swell from the WNW but still a 10-second period and light wind. It’s a smaller, cleaner option if the Friday is too big. Anything earlier than that, honestly, you are fighting chop and cross-breeze.
So, to wrap it up: don’t bother waxing up until the very end of the first week of September. Friday the 4th is your best bet for a proper, powerful session, but it’s for the advanced crowd only. The rest of the window is a write-off.
Stay patient.
- Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Sat morning, min 15°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Wed morning, min 16°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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 14 | SW 18 | WNW 6 | NW 7 | WNW 6 | WNW 6 | WNW 7 | WNW 7 | WNW 6 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | NW 7 | SW 16 | WNW 7 | WNW 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 180 | 101 | 115 | 220 | 98 | 175 | 214 | 132 | 140 | 201 | 218 | 145 | 224 | 216 | 163 | 268 | 203 | 376 | 464 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | glassy | cross-on | cross | glassy | cross-on | cross-on | glassy | cross-on | cross | cross | cross | cross | cross-off | cross | cross | cross-off |
High Tide | 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 | 10:21AM0.26m | 8:58PM0.81m | |||||||
Low Tide | 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 | 2:54PM-0.14m | 4:11AM-0.88m | ||||||
 |  | |  |  | | | | | | | | | | | | | | | |
 | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — |
 | — | — | 7:44 | — | — | 7:43 | — | — | 7:42 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 20 | 21 | 17 | 23 | 22 | 18 | 23 | 22 | 16 | 21 | 22 | 18 | 24 | 23 | 19 | 26 | 25 | 20 |
Feels °C | 14 | 19 | 20 | 16 | 22 | 20 | 18 | 22 | 20 | 16 | 20 | 20 | 16 | 21 | 20 | 18 | 23 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | WNW 6 | SSW 13 | SSW 13 | WNW 7 | SSW 13 | SSW 16 | WNW 7 | SSW 13 | SSW 13 | WNW 6 | SSW 14 | SW 17 | SW 17 | SW 16 | S 13 | WNW 7 | S 14 | S 13 | WNW 8 |
| kJ | 73 | 101 | 99 | 125 | 98 | 100 | 214 | 63 | 65 | 96 | 218 | 145 | 224 | 216 | 125 | 129 | 390 | 507 | 263 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | WNW 11 | WNW 11 | SSW 13 | WNW 10 | SSW 12 | SSW 12 | SW 19 | SW 18 | SSW 14 | SW 18 | S 15 | S 13 | S 13 | SW 16 | S 16 | SW 16 | SW 16 | S 14 |
| kJ | 180 | 68 | 66 | 99 | 35 | 60 | 59 | 129 | 112 | 163 | 199 | 109 | 126 | 126 | 163 | 321 | 203 | 122 | 617 |
Swell 3 Height (m) Direction Period (s) | WNW 12 | SW 18 | SW 18 | WNW 11 | SW 18 | WNW 10 | SSW 15 | SSW 16 | SSW 16 | SW 18 | WNW 11 | SSW 12 | WNW 11 | W 18 | W 16 | SW 16 | W 14 | W 13 | SW 15 |
| kJ | 104 | 82 | 49 | 44 | 50 | 20 | 76 | 85 | 84 | 201 | 12 | 50 | 11 | 24 | 46 | 159 | 64 | 87 | 75 |
Wind waves Height (m) Direction Period (s) | NW 6 | WNW 6 | WNW 6 | NW 7 | WNW 6 | WNW 6 | — | WNW 7 | WNW 6 | NW 7 | WNW 7 | WNW 6 | WNW 6 | WNW 6 | WNW 6 | NW 7 | WNW 7 | WNW 7 | WNW 8 |
| kJ | 144 | 53 | 115 | 220 | 96 | 175 | — | 132 | 140 | 189 | 83 | 127 | 94 | 77 | 144 | 268 | 153 | 376 | 464 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 2 | 117 | 96 | 0 | 189 | 96 | 0 | 230 | 117 | 0 | 117 | 116 | 2 | 117 | 144 | 0 | 87 | 116 | 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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