
Surf Forecasts:
15th Street surf forecast from 9 Aug 2026:
- Best quality surf: Friday 14 Aug, 8AM (local time) - 3ft (0.9m), 15s period, SW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 8PM (local time) - 4.5ft (1.3m), 16s period, SSW swell with 832 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 2AM (local time) - 3ft (0.9m), 14s period with SSW 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 Monday (Aug 10) at 2AM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.4m and 4s. 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 16s and forecast to arrive on Saturday (Aug 15) at 8PM. 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 (Mon 10th Aug) | 3ft (0.9m) 14s |
| Best Surf | 8AM (Fri 14th Aug) | 3ft (0.9m) 15s |
| Most Powerful | 8PM (Sat 15th Aug) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for 15th Street over the next 16 days.
The Lowdown
Alright, let’s get into it. First off, the water’s sitting at 75.9°F with an anomaly of 8.1°F – that’s way warmer than it should be for this time of year. You’re gonna feel that difference the moment you paddle out. It’s a real treat.
Now, the honest truth: the next week and a half is going to be a grind. We’ve got surf on the table, but it’s small and pretty gutless. Starting Sunday the 9th, we’re looking at 2.6ft of SSW swell with a 15-second period, but the energy is weak – only 307. The wind is light and offshore, so it’ll be clean, but there’s just not enough push. It’s one of those days where you’re better off checking the tide and maybe having a longboard session, but honestly, it’s not worth getting wet for.
Monday the 10th isn’t much better. Similar size, 2.6ft in the morning, dropping to 1.6ft by the afternoon, but the period jumps to 20 seconds on that afternoon pulse. That’s a long-period groundswell, and for a beach-and-reef setup like 15th Street, it might be breaking a bit too straight. The energy is still weak to moderate, around 365. It’s clean, but it’s not going to get the heart rate up.
Tuesday the 11th, we see a slight bump in energy – 443 in the afternoon – but the swell is still only 2.3ft. The period drops to 18 seconds, which is still long. It’s a step in the right direction, but we’re talking about ankle to knee-high waves at best. The wind stays light and offshore, so there’s no chop, but you’re mostly just floating around.
Wednesday the 12th and Thursday the 13th are more of the same. Small swell, 2.0-2.3ft, with periods of 16-17 seconds. The wind is light but turns cross-onshore on Wednesday morning and Thursday morning, which will put a bit of texture on the surface. Not ideal, but it’s not messy either. The energy remains weak to moderate, hovering in the 300s-400s.
Then we hit Friday the 14th. This is where things start to shift. The period jumps to 18 seconds, and the energy finally climbs into moderate territory – 580 in the morning, jumping to 735 by the afternoon. The swell is still small, 2.3-2.6ft, but the extra juice is there. The wind is offshore too. It’s still marginal, but there’s a chance of a clean head-high wave if you’re in the right spot. The tide is questionable, so you’ll want to time it right. This is the first day I’d actually paddle out, but keep your expectations in check.
Saturday the 15th, the swell picks up a touch – 3.0ft in the morning, building to 3.9ft by the afternoon. The energy is now solidly moderate, at 750. The period is still long, 16 seconds. But the wind turns cross-onshore in the afternoon, making it a bit choppy. The morning looks better, lighter wind, but the surf is still a bit full. It’s a day for the dawn patrol.
Sunday the 16th, we’re back down to 3.3ft, but the energy drops back to 652. The period is 15 seconds. The wind is offshore, so it’ll be clean, but the swell is fading. It’s a “maybe” day. Monday the 17th is more of the same, 3.0ft, but the energy is dropping back into the 400s. The window is closing.
From the 18th to the 24th, it’s a mix of small swells, weak to moderate energy, and a few longer period pulses. There’s a bit of a bump on the 19th with 3.0ft and 16-second period, and again on the 23rd with a 19-second period, but the size just isn’t there to make it interesting. The winds are mostly light and offshore, so it’ll be glassy, but you’re looking at knee to waist-high waves at best. The 22nd afternoon has a 21-second period, which is very long, but the swell is only 1.3ft. That’s essentially a long-period swell with almost no height – it’s going to be flat-looking.
So, here’s the deal. The standouts in this 16-day stretch are pretty weak. The best on offer is probably Friday the 14th and Saturday the 15th. The swell direction is SSW, which is right for 15th Street, and the period is long enough to give them some shape. But don’t get too excited – it’s still small. The energy is moderate, not strong. If you’re a beginner, the size is fine, but the quality is marginal. If you’re an expert, you might get a couple of fun ones, but it’s not going to be a day you talk about for years.
The real story is the water temperature. It’s way off the charts, and that’s a bigger deal than the surf itself. But for now, keep your expectations low, and maybe wait for that Friday push. It’s not
Short Range ForecastMostly dry. Warm (max 24°C on Sun morning, min 21°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Wed morning, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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 15 | SSW 15 | SSW 14 | SSW 14 | 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 |
Wave Graph | |||||||||||||||||||||
246 | 305 | 297 | 207 | 186 | 184 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 358 | 335 | 292 | 404 | 798 | 417 | 683 | 657 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | on | on | glassy | on | on | on | cross-on | on | glassy | cross-on | on | on | on | on | cross | on | cross-on | cross-on |
High Tide | 8:30AM1.50m | 7:02PM2.36m | 9:05AM1.60m | 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 | |||||||
Low Tide | 12:39PM1.15m | 2:29AM0.02m | 1:40PM1.04m | 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 | ||||||||
6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | |
— | 7:40 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 21 | 24 | 23 | 23 | 24 | 23 | 22 | 23 | 23 | 21 | 22 | 21 | 20 | 21 | 21 | 20 | 21 | 23 | 21 |
Feels °C | 25 | 24 | 22 | 25 | 23 | 25 | 24 | 23 | 23 | 23 | 23 | 22 | 22 | 20 | 21 | 22 | 21 | 20 | 21 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
246 | 305 | 297 | 207 | 139 | 137 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 358 | 335 | 251 | 404 | 798 | 417 | 683 | 657 | |
Swell 2 Height (m) Direction Period (s) | W 5 | W 5 | W 4 | SW 20 | SW 20 | SW 19 | SW 18 | SSW 12 | SSW 12 | SW 13 | SW 13 | S 11 | S 11 | S 11 | S 11 | SSW 18 | SW 14 | S 12 | SW 14 | S 11 | SW 13 |
14 | 14 | 6 | 103 | 186 | 184 | 114 | 49 | 47 | 61 | 61 | 59 | 60 | 59 | 61 | 292 | 251 | 43 | 191 | 21 | 87 | |
Swell 3 Height (m) Direction Period (s) | SSW 11 | SW 11 | SW 11 | W 4 | SW 16 | SW 14 | SW 14 | SW 15 | SW 13 | S 13 | S 12 | W 9 | W 9 | SSW 21 | SSW 20 | S 11 | S 11 | SSW 9 | SW 11 | W 11 | SW 9 |
47 | 30 | 30 | 3 | 39 | 33 | 74 | 75 | 45 | 50 | 47 | 6 | 13 | 44 | 149 | 37 | 61 | 16 | 29 | 10 | 13 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 4 | — | — | — | — | — | WNW 10 | — | — | W 8 | — | — | WNW 8 | WNW 3 | WSW 8 | WSW 10 | WNW 4 |
— | — | — | — | 1 | — | — | — | — | — | 18 | — | — | 12 | — | — | 19 | 3 | 26 | 36 | 7 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 37 | 37 | 0 | 37 | 37 | 0 | 37 | 37 | 24 | 37 | 37 | 0 | 137 | 37 | 5 | 36 | 36 | 18 | 36 | 36 | 20 |
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.











