Surf Forecasts:
15th Street surf forecast from 26 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 2AM (local time) - 5ft (1.5m), 13s period, S swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 2AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with 932 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 8PM (local time) - 3.5ft (1.0m), 14s period with S 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 25) at 8PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.6m and 11s. 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 29) at 2AM. 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+) | 8PM (Tue 25th Aug) | 3.5ft (1.0m) 14s |
| Best Surf | 2AM (Wed 26th Aug) | 5ft (1.5m) 13s |
| Most Powerful | 2AM (Sat 29th Aug) | 4.5ft (1.3m) 17s |
Table - best surf conditions forecast for 15th Street over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s talk about 15th Street. Honestly mate, this run is a tough one. We’re looking at a long stretch ahead with hardly anything to get excited about. The water’s sitting at 73°F which is much warmer than usual for this time of year, but that’s about the only thing out of the ordinary.
The first little pulse arrives on Tuesday morning, August 25. Swell around 2ft from the SW, with a long 16-second period, and combined energy reading 408 (moderate). The wind’s light offshore from the W at 6 mph, so it’ll be clean enough, but the comment is “poor surf conditions” – so don’t expect much. That short window is the best we get for a while. Tuesday afternoon sees a bit more size, 3ft from the S, 13-second period, energy 594, winds still offshore, but still only marginal at best.
Wednesday the 26th picks up a little more – 5ft Wednesday morning from the S, 12 seconds, energy 887 – but the wind swings cross-onshore from the SW at 9 mph, so it’ll be choppy. Not really worth paddling out for.
The standout moment comes on Friday morning, August 28. Glassy conditions, offshore from the WSW at 3 mph, and a clean little 2ft swell from the SW with a 16-second period. Energy is 461 (moderate). That glassy wind is a proper treat, and the line-up will feel quiet. It’s consistent here, so you’ll get a wave, but the crowd can be often, especially when it’s clean. For a beginner, this is perfect – small, clean, and easy.
After Friday, it’s grim. Saturday the 29th and Sunday the 30th see waist-high SSW swells, but with cross-onshore winds and that marginal label. By Monday August 31, it’s dropping off, and from Tuesday September 1 right through to the end of the outlook, nearly every session is marked “poor” or “marginal.” The energy drops from 431 down to 213 by September 7, and by September 8 we’re looking at 2ft swell from the SW with 18-second period, but only 326 energy – dead.
There’s a gap from around August 29 right through to the end of the 16 days with hardly any real recommendable surf. A few brief moments in that first few days, but mostly it’s a waiting game. The setup here is beach and reef, and when it’s this small and onshore, it’s more interesting for kite surfing than paddle surfing.
Best on offer: that Friday morning, August 28, at 15th Street. Glassy, clean, 2ft SW groundswell, and light offshores. The crowd will be there, but it’s worth it for the conditions.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed morning, min 22°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Fri morning, min 21°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | SW 16 | S 13 | S 13 | S 12 | S 12 | S 10 | S 12 | S 11 | SSW 18 | SW 16 | SSW 19 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 |
Wave Graph | |||||||||||||||||||||
264 | 285 | 784 | 556 | 446 | 305 | 389 | 274 | 270 | 274 | 470 | 932 | 667 | 788 | 749 | 537 | 400 | 321 | 316 | 187 | 156 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | cross-on | on | cross-on | cross-on | cross-on | glassy | glassy | on | on | on | on | cross-on | cross-on | on | cross-on | on | on | glassy |
High Tide | 9:15AM1.61m | 8:10PM2.17m | 9:34AM1.68m | 8:44PM2.19m | 9:54AM1.75m | 9:18PM2.17m | 10:16AM1.83m | 9:52PM2.09m | 10:38AM1.90m | 10:29PM1.96m | 11:03AM1.97m | 11:09PM1.79m | 11:31AM2.01m | 11:56PM1.60m | |||||||
Low Tide | 2:05PM1.04m | 3:11AM0.24m | 2:39PM0.94m | 3:35AM0.25m | 3:14PM0.84m | 3:59AM0.29m | 3:51PM0.76m | 4:22AM0.38m | 4:30PM0.69m | 4:46AM0.50m | 5:12PM0.65m | 5:09AM0.64m | 6:01PM0.64m | ||||||||
6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | |
— | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:19 | — | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 24 | 26 | 26 | 24 | 26 | 26 | 25 | 27 | 27 | 25 | 26 | 26 | 23 | 25 | 24 | 22 | 24 | 23 | 22 |
Feels °C | 26 | 27 | 26 | 27 | 26 | 26 | 27 | 27 | 27 | 29 | 27 | 27 | 28 | 26 | 25 | 25 | 23 | 23 | 24 | 22 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 16 | S 13 | S 13 | S 12 | S 12 | S 10 | S 12 | S 11 | S 10 | S 9 | SSW 19 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | W 8 | W 7 | W 7 | WNW 7 | WNW 7 | W 6 |
264 | 285 | 784 | 556 | 446 | 305 | 389 | 274 | 154 | 101 | 470 | 932 | 667 | 788 | 749 | 142 | 134 | 100 | 79 | 77 | 54 | |
Swell 2 Height (m) Direction Period (s) | S 13 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SSW 18 | SW 16 | S 8 | W 7 | W 7 | S 8 | W 7 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 12 | SSW 13 |
128 | 208 | 203 | 302 | 196 | 171 | 169 | 167 | 270 | 274 | 69 | 52 | 109 | 19 | 120 | 537 | 400 | 321 | 316 | 187 | 156 | |
Swell 3 Height (m) Direction Period (s) | W 6 | S 12 | W 6 | W 6 | W 6 | WNW 6 | SSW 19 | WNW 8 | SW 13 | W 11 | W 8 | S 8 | SSW 8 | S 16 | S 9 | S 13 | S 12 | S 12 | S 12 | SSW 14 | S 11 |
16 | 101 | 19 | 29 | 20 | 13 | 140 | 22 | 113 | 86 | 45 | 33 | 20 | 5 | 14 | 89 | 112 | 153 | 144 | 161 | 114 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | W 7 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 103 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 37 | 37 | 0 | 119 | 37 | 14 | 84 | 152 | 0 | 0 | 36 | 5 | 37 | 36 | 7 | 37 | 37 | 37 | 37 | 37 | 0 |
Best forecast wave conditions in San Diego County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











