Surf Forecasts:
Saint Annes surf forecast from 12 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 11PM (local time) - 2.5ft (0.7m), 18s period, SW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 5AM (local time) - 3.5ft (1.1m), 17s period, SSW swell with 734 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 11PM (local time) - 2.5ft (0.7m), 18s period with SW 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 (Aug 11) at 11PM. The primary swell is predicted to be 0.7m and 18s period with a secondary swell of 0.7m and 9s. 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 1.1m 17s and forecast to arrive on Saturday (Aug 15) at 5AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 10s period and expected on Saturday (Aug 15) at 8PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 11th Aug) | 2.5ft (0.7m) 18s |
| Best Surf | 11PM (Tue 11th Aug) | 2.5ft (0.7m) 18s |
| Most Powerful | 5AM (Sat 15th Aug) | 3.5ft (1.1m) 17s |
Table - best surf conditions forecast for Saint Annes over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down the next 16 days at Saint Annes.
Frankly, it’s a tough stretch. The reef is a sheltered spot, and it needs a clean window, but we’re just not getting one. The whole period is a run of poor to marginal conditions.
We start on Tuesday, August 11th. The morning has a tiny 1ft SSW swell with a very long 19-second period. Water temp is 64°, which is about normal for this time. But the wind is onshore from the WSW at 6 mph, and the wave report is poor. The afternoon is a 2ft cross-on mess. Not worth it.
Wednesday, August 12th, the swell bumps to 2ft to 2ft, still SSW/SW, with a decent period. The combined energy is moderate (339) and ramps up to 500, showing some power. But that light cross-onshore wind keeps it choppy. It’s only a marginal call.
Thursday the 13th through Monday, August 17th, is a grind. Swell stays between 2ft and 4ft, mostly SSW, with periods dropping from 16 seconds down to 14 seconds. The energy climbs into the 500s and 600s, so there is power, but it’s all cross-on or cross-shore winds from the WNW and W. The wave comments are “poor” or “marginal”. It’s no good.
Tuesday, August 18th, and Wednesday, August 19th, the wind gets stronger. Moderate to fresh breezes from the NW, still cross-shore. On the 21st, a 6ft WNW windswell with a short 6-second period rolls in the afternoon, but it’s choppy and lumpy. That’s kitesurfing weather, not surfing.
Saturday, August 22nd, offers a 5ft WNW swell, but again, short period and cross-shore winds. Not for us.
Into the final days, the pattern holds. Long-period SW groundswells around August 26th show strong combined energy (734 and 860), but the wind is persistently cross-onshore. The waves will be there, but buried in chop.
There is no single standout session in this whole 16-day window. Not one clean, glassy day for the reef. It’s a long, quiet stretch. But don’t store the board just yet – things can change.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Tue morning, min 14°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sat afternoon, min 13°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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 19 | SW 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 19 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 140 | 154 | 316 | 190 | 264 | 261 | 251 | 242 | 242 | 207 | 360 | 582 | 499 | 539 | 674 | 589 | 489 | 437 | 437 | 437 | 264 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | glassy | on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross | cross-off | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off |
High Tide | 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 | 1:20PM0.55m | 1:15AM0.41m | 2:01PM0.55m | 2:30AM0.22m | |||||||
Low Tide | 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 | 6:51AM-0.70m | 7:27PM-0.40m | 7:29AM-0.51m | 8:39PM-0.43m | ||||||||
 | |  | |  | | | |  | | | | | | | | | | | | | |
 | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 16 | 19 | 19 | 16 | 18 | 18 | 16 | 18 | 18 | 15 | 18 | 19 | 15 | 19 | 19 | 15 | 19 | 21 | 16 |
Feels °C | 19 | 18 | 16 | 19 | 18 | 16 | 17 | 17 | 16 | 16 | 15 | 14 | 17 | 17 | 14 | 18 | 18 | 14 | 18 | 19 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | NW 9 | NW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 64 | 81 | 86 | 103 | 138 | 129 | 105 | 103 | 108 | 73 | 360 | 582 | 499 | 539 | 674 | 589 | 489 | 437 | 437 | 437 | 264 |
Swell 2 Height (m) Direction Period (s) | S 13 | SW 18 | SW 18 | SSW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | S 10 | S 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 |
| kJ | 87 | 154 | 316 | 190 | 264 | 261 | 251 | 242 | 242 | 169 | 214 | 164 | 85 | 62 | 18 | 18 | 40 | 33 | 29 | 28 | 16 |
Swell 3 Height (m) Direction Period (s) | SSW 19 | S 12 | SSW 12 | SSW 12 | SSW 13 | S 11 | S 11 | S 10 | SSW 20 | SSW 19 | S 9 | S 9 | S 10 | S 10 | WNW 11 | SSW 10 | S 10 | SW 12 | SW 11 | S 10 | SW 10 |
| kJ | 140 | 77 | 46 | 46 | 98 | 37 | 37 | 33 | 151 | 207 | 15 | 26 | 16 | 17 | 23 | 10 | 8 | 23 | 19 | 7 | 24 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WNW 8 | WNW 7 | WNW 7 | WNW 4 | WNW 11 | WNW 10 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | WNW 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | 66 | 48 | 29 | 16 | 99 | 60 | 11 | 9 | 6 | 19 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 309 | 117 | 26 | 105 | 117 | 0 | 20 | 85 | 0 | 85 | 117 | 2 | 333 | 117 | 0 | 217 | 117 | 0 | 117 | 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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