
Surf Forecasts:
15th Street surf forecast from 4 Sep 2026:
- Best quality surf: Friday 4 Sep, 11PM (local time) - 4.5ft (1.3m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 5AM (local time) - 7ft (2.1m), 15s period, SSW swell with 1,822 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 11PM (local time) - 3.5ft (1.0m), 18s 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 Thursday (Sep 03) at 11PM. The primary swell is predicted to be 1.0m and 18s period with a secondary swell of 0.7m and 5s. 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 2.1m 15s and forecast to arrive on Monday (Sep 07) 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 (Thu 3rd Sep) | 3.5ft (1.0m) 18s |
| Best Surf | 11PM (Fri 4th Sep) | 4.5ft (1.3m) 16s |
| Most Powerful | 5AM (Mon 7th Sep) | 7ft (2.1m) 15s |
Table - best surf conditions forecast for 15th Street over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s break down the next two weeks at 15th Street.
Right now, there’s nothing worth paddling out for. We’ve got a quiet start, but the quality is just not there. The first surf to think about is Thursday afternoon, the 3rd of September, with a 3ft swell from the SW. Problem is, the score is a flat zero – poor surf conditions. The water is sitting at a very unusual 75.6°, which is a massive 7.4° warmer than normal for this time of year – that’s way off, makes it feel more like summer.
Friday the 4th and Saturday the 5th show a slight bump in size, about 3.3ft to 3.9ft, coming from the SSW or S. The period is very long – 17 to 14 seconds – that’s proper groundswell energy. The combined energy climbs from 826 up to 1408 (moderate to strong). The catch? The forecast keeps calling it “marginal” with questionable tide and a score of only 1 to 3 out of 10. The wind is offshore (W to WNW) and light to gentle, so conditions would be clean, but the swell height is just too small for the beach/reef setup here to deliver anything memorable. Not the standout we’re after.
Sunday the 6th morning sees a big jump to 6.6ft from the S, energy hitting 1576. That’s a strong pulse. But the wind turns cross-onshore from the NW, making it “fairly choppy.” Score is a 2. It’s messy, and at 6.6ft it’s pushing into bigger, less forgiving territory for beginners. Not the one.
Monday the 7th is the biggest swell of the run – 6.9ft from the SSW, with energy at 1659. Again, cross-onshore wind and choppy conditions. The swell period is 14 seconds, decent groundswell, but the quality just isn’t there. Score of 2. This is more of a kite-surfing day with that onshore chop and size; paddle surfing would be a battle.
From Tuesday the 8th right through to Wednesday the 16th, we’re in a long, sad stretch. Swells drop from 6.2ft down to just 1.6ft. Scores are mostly 0 or 1. The winds stay offshore (W to WNW) and light, which means the surface would be glassy, but there’s simply not enough wave height to ride. The combined energy drops from 1296 all the way down to 226. A few days in the second week have long periods (16-22 seconds), but with tiny swell heights, it’s just not breaking properly. This is a blank run of about 8 days with no real surf to speak of. That’s a tough stretch.
Thursday the 17th and Friday the 18th show a tiny uptick – 2.0ft to 2.6ft swells from the SW, with very long periods of 20-22 seconds. Energy picks up to 546 or 676 (weak to moderate). Scores creep up to a 1 or 2. Winds are offshore (WNW to WSW) and light to gentle. Still, that’s barely a bump. Marginal at best.
The only real standout? I hate to say it, but there isn’t one. If I had to pick the best window, it would be Saturday the 5th afternoon: 3.9ft from the SW, period 16 seconds, light offshore wind, energy 1408. That’s the highest score of the whole forecast: a 3 out of 10. Clean, small, and the long period might give a few lined-up waves for those with patience. But it’s not a day to get excited about. Crowds can be expected at this break often – you’ll have company for those few rides.
Stay patient, folks. The ocean’s not giving us much right now.
Short Range ForecastMostly dry. Warm (max 25°C on Sun morning, min 19°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 23°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | S 14 | SW 16 | S 15 | S 14 | S 13 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SW 17 |
Wave Graph | ||||||||||||||||||||
455 | 651 | 587 | 717 | 612 | 537 | 739 | 1547 | 1576 | 737 | 904 | 1633 | 1419 | 1496 | 1188 | 1170 | 813 | 483 | 411 | 419 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | on | on | glassy | on | on | cross | cross-on | cross-on | cross-on | on | cross-on | glassy | on | on | cross-on | on | cross-on | glassy |
High Tide | 6:09AM1.25m | 3:12PM1.98m | 7:12AM1.38m | 4:45PM2.04m | 7:40AM1.51m | 6:00PM2.14m | 8:08AM1.64m | 7:00PM2.24m | 8:36AM1.76m | 7:50PM2.29m | 9:04AM1.87m | 8:37PM2.28m | ||||||||
Low Tide | 10:06PM0.60m | 6:57AM1.24m | 11:36PM0.46m | 10:00AM1.32m | 00:39AM0.30m | 11:49AM1.23m | 1:26AM0.18m | 12:55PM1.08m | 2:06AM0.11m | 1:47PM0.90m | 2:42AM0.11m | 2:33PM0.74m | 3:15AM0.17m | |||||||
— | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | |
7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:02 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 20 | 22 | 22 | 21 | 24 | 24 | 23 | 25 | 26 | 23 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 |
Feels °C | 21 | 20 | 22 | 21 | 22 | 23 | 23 | 23 | 23 | 25 | 21 | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | S 14 | S 13 | S 15 | S 14 | S 13 | S 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SW 10 |
455 | 651 | 587 | 717 | 612 | 537 | 599 | 1547 | 1576 | 737 | 724 | 1633 | 1419 | 1496 | 1188 | 1170 | 813 | 483 | 411 | 192 | |
Swell 2 Height (m) Direction Period (s) | SSW 10 | W 6 | SSW 11 | SSE 14 | S 14 | SSW 16 | SW 16 | WSW 10 | — | SSW 15 | SSW 15 | WSW 10 | WSW 11 | WNW 5 | SW 18 | SW 21 | W 5 | SW 16 | SW 16 | SW 17 |
55 | 30 | 81 | 210 | 377 | 512 | 739 | 37 | — | 588 | 904 | 11 | 11 | 9 | 50 | 18 | 16 | 257 | 278 | 419 | |
Swell 3 Height (m) Direction Period (s) | SW 12 | SW 11 | SSE 14 | SW 10 | SW 11 | SW 12 | S 10 | W 13 | — | W 11 | — | — | — | — | SSW 21 | — | SW 16 | W 5 | SSW 12 | W 5 |
72 | 61 | 158 | 50 | 60 | 47 | 70 | 14 | — | 37 | — | — | — | — | 44 | — | 132 | 13 | 29 | 16 | |
Wind waves Height (m) Direction Period (s) | W 6 | — | — | W 5 | WNW 5 | — | — | — | — | — | WNW 3 | W 6 | WNW 6 | WNW 4 | WNW 5 | WNW 3 | — | WNW 5 | W 5 | — |
31 | — | — | 14 | 12 | — | — | — | — | — | 4 | 15 | 24 | 11 | 14 | 6 | — | 15 | 12 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 37 | 0 | 36 | 37 | 0 | 36 | 36 | 18 | 37 | 17 | 20 | 36 | 36 | 0 | 36 | 37 | 36 | 36 | 36 | 0 |
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.










