Surf Forecasts:
Windansea surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 5AM (local time) - 2.5ft (0.7m), 14s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 11AM (local time) - 2.5ft (0.8m), 16s period, SW swell with 291 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 2.5ft (0.7m), 14s 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 Thursday (Aug 20) at 5AM. The primary swell is predicted to be 0.7m and 14s period with a secondary swell of 0.6m and 6s. 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 Wednesday (Aug 19) at 11AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 20th Aug) | 2.5ft (0.7m) 14s |
| Best Surf | 5AM (Thu 20th Aug) | 2.5ft (0.7m) 14s |
| Most Powerful | 11AM (Wed 19th Aug) | 2.5ft (0.8m) 16s |
Table - best surf conditions forecast for Windansea over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming up for Windansea.
Honestly, the next couple of weeks are a tough watch for this spot. We’ve got a real flat spell on the horizon. For the first stretch, from Tuesday the 18th of August right through until late in the month, there’s just nothing doing. The surf is tiny, mostly around 1ft to 3ft, and the wind is either on it or cross-on, so it’s messy or just plain weak. You’ll see a southwest groundswell knocking around with periods from 13 to 19 seconds, which is a proper long-period swell, but with so little height it’s not wrapping in with any punch. The combined energy is weak, sitting between 197 and 366 – just not enough to get excited about.
The water on the 18th is sitting at 71°, which is a touch warmer than usual for this time of year, so at least you won’t be freezing while you’re sitting there waiting for a wave.
Now, looking further out, there’s a glimmer. Around Saturday the 29th of August, we finally see a bump. The swell picks up to 3ft to 4ft from the southwest, with a period of 16 to 17 seconds. That’s a long-period groundswell, and at a reef break like Windansea, that can actually be a good thing – it’ll wrap in with some proper shape. The combined energy jumps to 639 and 660, which is moderate energy, and much healthier than the weeks before. Wind is light and offshore from the west, which is a major positive for clean, lined-up waves. This is the standout of the whole outlook. It’s not massive, but it’s the best we’ve got. The water temp anomaly wasn’t given for that day, but the earlier reading suggests it’s still a touch warmer than average.
After that, Sunday the 30th and Monday the 31st drop back to 3ft to 3ft, and the wind turns cross-on or on again, so it’s back to average cleanup. The whole run fades out into early September with similar small, average conditions.
So, to be straight with you: the first 11 days are a write-off for surfing. The one real chance to paddle out is Saturday the 29th of August. That's your window.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Wed morning, min 20°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sat morning, min 22°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 17 | SW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SW 13 | SW 18 | SSW 15 | SW 15 | SW 19 | SSW 13 | SSW 14 | WSW 18 | SW 17 | SW 17 |
Wave Graph  | ||||||||||||||||||||
 kJ | 144 | 258 | 291 | 291 | 217 | 211 | 211 | 153 | 140 | 114 | 84 | 109 | 142 | 220 | 171 | 154 | 233 | 209 | 137 | 222 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | cross-on | cross | cross-on | cross-on | glassy | cross-on | on | glassy | on | on | on | on | cross-on | cross-on | on | on | cross-on |
High Tide | 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 | 9:01AM1.19m | 7:40PM1.74m | |||||||||
Low Tide | 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 | 1:35PM0.78m | 2:50AM-0.04m | ||||||||
 |  |  | | | | | | | | | | |  | | | | | | | |
 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — |
 | 7:30 | — | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — | — | 7:25 | — | — | 7:24 | — | — | 7:23 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 23 | 22 | 22 | 22 | 23 | 22 | 23 | 23 | 22 | 24 | 24 | 23 | 24 | 23 | 22 | 24 | 23 | 23 |
Feels °C | 22 | 22 | 24 | 22 | 24 | 24 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 23 | 23 | 25 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 6 | W 7 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SW 13 | W 7 | SSW 15 | SW 15 | SSW 13 | SSW 13 | SSW 14 | WSW 18 | W 6 | W 6 |
| kJ | 54 | 52 | 59 | 291 | 217 | 211 | 211 | 153 | 140 | 114 | 84 | 37 | 142 | 220 | 114 | 154 | 233 | 209 | 24 | 41 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 15 | SW 16 | W 7 | W 6 | W 6 | W 6 | WNW 7 | WNW 6 | WNW 7 | WNW 6 | SW 12 | W 7 | W 10 | W 6 | W 6 | SW 18 | SSW 14 | SSW 13 | SW 17 |
| kJ | 144 | 258 | 291 | 61 | 29 | 27 | 19 | 16 | 14 | 15 | 13 | 51 | 23 | 49 | 20 | 18 | 155 | 120 | 111 | 222 |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 19 | SW 20 | S 8 | W 14 | SW 19 | W 13 | WNW 12 | SW 18 | SW 17 | WNW 11 | SW 18 | SW 12 | SW 19 | SW 19 | SW 18 | W 5 | W 6 | SW 17 | SSW 13 |
| kJ | 135 | 15 | 16 | 1 | 15 | 57 | 13 | 27 | 82 | 73 | 23 | 109 | 37 | 94 | 171 | 154 | 13 | 15 | 137 | 156 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 18 | 18 | 18 | 266 | 5 | 5 | 19 | 0 | 19 | 19 | 0 | 19 | 19 | 4 | 19 | 52 | 10 | 19 | 18 | 10 |
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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