Surf Forecasts:
15th Street surf forecast from 11 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 2AM (local time) - 1.5ft (0.5m), 19s period, SW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 2AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with 921 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 2AM (local time) - 1.5ft (0.5m), 19s period with SW swell.
Best Forecast Surf Conditions for 15th Street this week:
The surf forecast for 15th Street over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 2AM. The primary swell is predicted to be 0.5m and 19s period with a secondary swell of 0.6m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at 15th Street in the next 16 days are 1.3m 17s and forecast to arrive on Saturday (Aug 15) at 2AM. 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+) | 2AM (Tue 11th Aug) | 1.5ft (0.5m) 19s |
| Best Surf | 2AM (Tue 11th Aug) | 1.5ft (0.5m) 19s |
| Most Powerful | 2AM (Sat 15th Aug) | 4.5ft (1.3m) 17s |
Table - best surf conditions forecast for 15th Street over the next 16 days.
The Lowdown
Alright, grab your wettie, it's Rusty here. Let’s have a look at what’s cookin’ for 15th Street.
Alright, to be real with you, the next two weeks are looking mostly flat and pretty average. The energy just isn't there for the most part. For the first few days, it's a write-off. We're looking at tiny waves with choppy, messy conditions, so don't even bother paddling out until later in the week. We’ll see a few sessions that are *barely* worth wetting a line, but nothing to get excited about.
The first time we might see something with a pulse is around Thursday the 13th, but even then, it's only marginal. Expect weak, 2ft to 3ft swell from the SSW with a period around 16 seconds. The wind will be light and onshore, which won't do us any favours. The wave energy is weak to moderate (338). It's a "maybe" day at best.
The best bet in this whole sorry stretch looks like Saturday the 15th. The swell bumps up a little, around 4ft from the SSW with a 16 second period. The combined swell energy will be moderate (727), but it's still showing as just a marginal day. The wind is a constant onshore from the W, so it'll be bumpy. It’s the pick of a bad bunch, but don't expect perfection.
After that, the swell drops back down and the winds turn a bit cross-onshore from Sunday the 16th onwards. The wave heights hover around the 2ft to 3ft mark for the rest of the run, with combined energy levels dropping back into the 200 to 400 range. It’s basically a long stretch of poor to marginal conditions right through to the 25th. The best description is small, weak, and onshore-trashy. Honestly, for the second week, there's nothing worth writing home about.
So, if you're desperate, Saturday the 15th is your best chance. For everyone else, take a break. This stretch looks more like a good time to get the kite out than a proper surf session.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Tue morning, min 21°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Thu afternoon, min 19°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 20 | SW 19 | SSW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 14 | SW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 186 | 184 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 353 | 276 | 292 | 404 | 921 | 417 | 683 | 666 | 544 | 482 | 482 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | on | on | glassy | on | on | glassy | on | on | cross-on | on | on | cross-on | on | on | on | on | on | cross-on |
High Tide | 7:55PM2.46m | 9:38AM1.70m | 8:44PM2.49m | 10:12AM1.79m | 9:30PM2.43m | 10:45AM1.87m | 10:15PM2.29m | 11:18AM1.93m | 10:59PM2.09m | 11:51AM1.96m | 11:44PM1.85m | 12:25PM1.96m | 00:33AM1.60m | |||||||
Low Tide | 3:10AM-0.05m | 2:33PM0.92m | 3:48AM-0.05m | 3:22PM0.82m | 4:24AM0.03m | 4:10PM0.75m | 4:57AM0.17m | 4:59PM0.72m | 5:28AM0.35m | 5:50PM0.72m | 5:57AM0.56m | 6:45PM0.75m | ||||||||
 |  | | | | |  |  | | | | | | | |  | | | | | |
 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — |
 | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | — | 7:32 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 24 | 23 | 22 | 23 | 23 | 21 | 22 | 22 | 20 | 21 | 21 | 20 | 21 | 22 | 21 | 22 | 22 | 21 |
Feels °C | 24 | 23 | 24 | 23 | 23 | 23 | 23 | 22 | 23 | 22 | 21 | 21 | 20 | 20 | 21 | 22 | 21 | 22 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 14 | SW 14 |
| kJ | 139 | 137 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 353 | 276 | 255 | 404 | 921 | 417 | 683 | 666 | 544 | 482 | 482 |
Swell 2 Height (m) Direction Period (s) | SW 20 | SW 19 | SW 18 | SSW 12 | SSW 12 | SSW 12 | SW 13 | S 12 | S 11 | S 11 | S 10 | SSW 18 | SW 14 | W 4 | SW 14 | S 11 | S 11 | S 11 | S 10 | S 10 |
| kJ | 186 | 184 | 114 | 49 | 56 | 47 | 61 | 47 | 60 | 59 | 52 | 292 | 251 | 9 | 191 | 21 | 20 | 20 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SW 14 | SW 14 | SW 15 | SW 13 | S 13 | S 12 | SSW 11 | SW 12 | SSW 21 | SSW 20 | S 11 | WNW 12 | S 12 | W 5 | W 11 | W 13 | W 10 | W 11 | W 10 |
| kJ | 39 | 33 | 74 | 75 | 45 | 50 | 47 | 22 | 23 | 44 | 149 | 21 | 14 | 44 | 12 | 10 | 13 | 8 | 9 | 8 |
Wind waves Height (m) Direction Period (s) | W 4 | — | W 8 | WNW 12 | — | — | W 10 | W 9 | — | W 8 | — | — | SW 11 | — | WNW 5 | W 5 | W 5 | W 5 | WNW 5 | WNW 5 |
| kJ | 1 | — | 5 | 28 | — | — | 17 | 6 | — | 12 | — | — | 96 | — | 14 | 13 | 17 | 20 | 28 | 37 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 37 | 0 | 37 | 36 | 0 | 37 | 85 | 0 | 37 | 37 | 2 | 37 | 37 | 18 | 36 | 37 | 18 | 36 | 37 | 36 |
Best forecast wave conditions in San Diego County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the 15th Street Surf forecast
The above surf forecast table for 15th Street provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at 15th Street can be found by selecting the local surf guide option on the grey menu. Our 15th Street 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 (15th Street) 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 15th Street 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.
15th Street is 5 km (3 miles) from the city of Encinitas. If you plan a vacation in San Diego County, look for hotels and other accommodation in Encinitas. Encinitas has rooms for a wide range of budgets as well as car hire and transport links.
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