Surf Forecasts:
Windansea surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 11PM (local time) - 2.5ft (0.7m), 15s period, SW swell with glassy winds.
- Most powerful swell: Tuesday 18 Aug, 5AM (local time) - 2.5ft (0.8m), 16s period, SW swell with 299 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 11PM (local time) - 2.5ft (0.7m), 15s period with SW swell.
Best Forecast Surf Conditions for Windansea this week:
The surf forecast for Windansea over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 11PM. The primary swell is predicted to be 0.7m and 15s period with a secondary swell of 0.7m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Windansea in the next 16 days are 0.8m 16s and forecast to arrive on Tuesday (Aug 18) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 19th Aug) | 2.5ft (0.7m) 15s |
| Best Surf | 11PM (Wed 19th Aug) | 2.5ft (0.7m) 15s |
| Most Powerful | 5AM (Tue 18th Aug) | 2.5ft (0.8m) 16s |
Table - best surf conditions forecast for Windansea over the next 16 days.
The Lowdown
Alright, listen up. The next couple of weeks at Windansea are looking pretty flat and quiet. We’ve got a long stretch of small, weak swell with mostly onshore or cross-onshore breezes, so the surf is going to be pretty poor for a while. The first week, from Monday the 17th through to the end of the month, is a real struggle. There’s a bit of energy in the water, but it’s all small – we’re talking 1ft to 3ft at best, and the wind is a constant problem. The combined swell energy is weak, sitting between 200 and 400 (low to moderate), and the period is mostly short, around 13 to 14 seconds, which isn’t enough to give you any real shape. The water out there is sitting at 73°, which is a good 5° warmer than usual for this time of year, so it’s a proper summer bath, but it’s not helping the waves.
The only thing that catches my eye is the very end of the run. On Saturday the 29th of August, the swell finally starts to push up a bit. We’re looking at 4ft to 4ft of SW swell, with a period of 18 seconds. That’s a proper groundswell, and the energy jumps to 839 and 945 (strong to very strong). The wind is still a bit of a worry – cross-on or onshore – but it’s light. This is a reef break, so that long period will work well here, giving you some clean lines. It’s still marginal, but it’s the best of a pretty quiet run. Don’t get your hopes up too much for the rest of it.
Stay patient, and keep an eye on that last weekend of August. It’s something to look forward to.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Wed morning, min 21°C on Mon afternoon). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Sat morning, min 22°C on Thu afternoon). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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) | SW 14 | SW 14 | SW 16 | SW 17 | SW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SSW 13 | SW 18 | SSW 15 | SSW 15 | SW 19 | SSW 13 | SSW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 245 | 231 | 211 | 135 | 258 | 291 | 291 | 217 | 211 | 211 | 153 | 142 | 114 | 113 | 109 | 142 | 188 | 173 | 154 | 233 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | on | on | on | on | on |
High Tide | 1:34AM1.04m | 1:42PM1.49m | 3:28AM0.88m | 2:37PM1.45m | 3:54PM1.43m | 8:26AM1.03m | 5:14PM1.47m | 8:32AM1.09m | 6:16PM1.55m | 8:46AM1.14m | 7:02PM1.65m | |||||||||
Low Tide | 7:47PM0.45m | 6:50AM0.62m | 9:15PM0.47m | 7:07AM0.79m | 11:03PM0.41m | 00:25AM0.30m | 10:32AM1.01m | 1:16AM0.18m | 12:09PM0.97m | 1:53AM0.09m | 12:58PM0.88m | 2:23AM0.01m | ||||||||
 |  | | | | | | | | | | | | | | | | | | | |
 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — |
 | 7:31 | — | — | 7:30 | — | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — | — | 7:25 | — | — | 7:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 22 | 22 | 21 | 23 | 22 | 22 | 23 | 22 | 22 | 24 | 23 | 23 | 25 | 24 | 23 | 24 | 24 | 23 |
Feels °C | 22 | 21 | 22 | 22 | 22 | 24 | 22 | 24 | 24 | 22 | 24 | 25 | 23 | 25 | 25 | 24 | 24 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 14 | W 6 | W 6 | W 6 | W 7 | W 7 | W 7 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SSW 13 | W 11 | SSW 15 | SSW 15 | SSW 13 | SSW 13 | SSW 14 |
| kJ | 245 | 41 | 38 | 51 | 57 | 79 | 66 | 217 | 211 | 211 | 153 | 142 | 114 | 113 | 57 | 142 | 188 | 114 | 154 | 233 |
Swell 2 Height (m) Direction Period (s) | W 10 | SW 14 | SW 16 | SW 13 | SW 15 | SW 16 | SW 16 | W 7 | W 6 | W 6 | WNW 7 | W 7 | WNW 7 | W 11 | SW 12 | W 10 | W 10 | SW 19 | SW 18 | SW 18 |
| kJ | 8 | 231 | 211 | 109 | 258 | 291 | 291 | 40 | 18 | 20 | 18 | 14 | 15 | 58 | 51 | 48 | 48 | 173 | 154 | 155 |
Swell 3 Height (m) Direction Period (s) | S 10 | W 10 | SW 13 | SW 17 | SW 19 | SW 20 | S 8 | W 14 | SW 19 | WNW 8 | WNW 12 | SW 18 | SW 17 | SSW 16 | SW 18 | SSW 12 | SW 19 | W 10 | WNW 6 | W 10 |
| kJ | 8 | 7 | 83 | 135 | 15 | 16 | 1 | 15 | 57 | 6 | 27 | 82 | 73 | 50 | 109 | 56 | 94 | 48 | 12 | 47 |
Wind waves Height (m) Direction Period (s) | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 35 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 19 | 17 | 18 | 18 | 18 | 18 | 19 | 1 | 5 | 150 | 0 | 127 | 19 | 0 | 18 | 19 | 4 | 19 | 19 | 18 |
Best forecast wave conditions in San Diego County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Windansea Surf forecast
The above surf forecast table for Windansea provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Windansea can be found by selecting the local surf guide option on the grey menu. Our Windansea 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 (Windansea) 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 Windansea 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.
Windansea is 10 km (6 miles) from San Diego. If you plan a vacation in San Diego County, look for hotels and other accommodation in San Diego. San Diego has rooms for a wide range of budgets as well as car hire and transport links.
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