Surf Forecasts:
15th Street surf forecast from 12 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, 2AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with 921 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 2AM (local time) - 2.5ft (0.8m), 16s 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 Thursday (Aug 13) at 2AM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.4m and 10s. 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 (Thu 13th Aug) | 2.5ft (0.8m) 16s |
| Best Surf | 8AM (Fri 14th Aug) | 3ft (0.9m) 15s |
| 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
G'day, I'm Rusty.
Alright, let's be straight with you. The outlook for 15th Street is a bit of a tough one over the next 16 days. We've got a long stretch of pretty ordinary conditions before a late surge of energy that could be promising.
The water temp is sitting at 75°, which is a massive 7° warmer than usual for this time of year. It's very unusual – you'll be in for a warm session if you get in.
For the first two weeks, from Wednesday the 12th through to the 26th, it's a real struggle. The swell is tiny, mostly between 2ft and 3ft, and while the wind is often offshore and light, the wave quality is just poor. The combined swell energy is weak, sitting in the 100 to 600 range (349 to 468). The best you'll get is a "marginal" call on Thursday the 13th, Friday the 14th, and Saturday the 15th, with a small bump up to 4ft on Saturday afternoon. But honestly, it's only for the very keen on a longboard. The period is long, around 15 to 18 seconds, which is a proper groundswell, but with so little height, it just doesn't have the push. This spot is a beach and reef combo, so that long period might make it a bit soft and straight.
Then the real blank patch hits. From Sunday the 16th right through to Wednesday the 26th, it's all "poor surf conditions" with scores of 0 out of 10. The swell drops to 2ft, and cross-onshore winds start to creep in, messing up the surface. It's a consistent spot, so this kind of lull can happen, but it's still a bummer.
Now, hang in there, because there's a flicker of hope right at the end. On Thursday the 27th, things change. Morning brings a solid jump in swell to 4ft from the S, with a period of 14 seconds. The combined energy leaps to 1230, which is strong and very noticeable. The wind is a light cross-onshore, so it's not perfect, but it's a massive improvement. Then, in the afternoon, it gets good. The wind swings to a glassy NNE at just 3 mph, turning the surface to glass. The swell is still 4ft from the S (13 seconds, energy 945), and the conditions are described as "very good." This is definitely the standout of the whole 16-day window. It's small enough for beginners but has enough push to be fun on a shortboard too. Given the crowds are "often" there, expect a few others to have the same idea.
So, to sum it up: a lot of flat and poor stuff, but if you can wait until the afternoon of Thursday the 27th, you'll be rewarded with clean, glassy waves. It's a week and a half away, so keep an eye on the forecast, but it's looking like the best bet.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Wed morning, min 19°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Mon morning, min 19°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 17 | SSW 15 |
Wave Graph | |||||||||||||||||||||
230 | 264 | 306 | 255 | 353 | 276 | 292 | 404 | 921 | 417 | 683 | 666 | 493 | 437 | 437 | 367 | 264 | 261 | 232 | 243 | 275 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | cross-on | on | cross-on | on | on | cross-on | on | on | cross | on | on | cross-on | on | on | glassy | on | on | on |
High Tide | 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 | 1:00PM1.93m | 1:34AM1.37m | 1:40PM1.88m | 3:22AM1.21m | |||||||
Low Tide | 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 | 6:23AM0.77m | 7:50PM0.79m | 6:46AM0.96m | 9:14PM0.81m | ||||||||
6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | |
— | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 22 | 24 | 23 | 22 |
Feels °C | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 21 | 20 | 23 | 22 | 21 | 23 | 23 | 22 | 23 | 25 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | W 6 | W 7 | W 7 | W 7 | SSW 15 |
230 | 264 | 306 | 255 | 353 | 276 | 255 | 404 | 921 | 417 | 683 | 666 | 493 | 437 | 437 | 367 | 68 | 111 | 103 | 79 | 275 | |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 10 | S 11 | S 11 | S 10 | SSW 18 | SW 14 | W 4 | SW 14 | S 11 | W 5 | W 6 | S 10 | W 6 | W 6 | SSW 14 | SSW 14 | SSW 16 | SSW 17 | W 8 |
47 | 50 | 34 | 60 | 59 | 52 | 292 | 251 | 8 | 191 | 37 | 28 | 24 | 8 | 52 | 49 | 264 | 261 | 232 | 243 | 80 | |
Swell 3 Height (m) Direction Period (s) | S 13 | SW 13 | S 12 | SW 12 | SSW 21 | SSW 20 | S 11 | SSW 11 | S 12 | W 5 | W 11 | S 11 | S 11 | W 11 | S 10 | S 10 | SSW 18 | S 10 | SSW 13 | SSW 13 | S 9 |
50 | 61 | 27 | 23 | 44 | 149 | 36 | 68 | 44 | 13 | 10 | 20 | 20 | 9 | 8 | 8 | 32 | 7 | 114 | 114 | 6 | |
Wind waves Height (m) Direction Period (s) | W 4 | W 4 | — | — | W 8 | — | — | WNW 7 | — | — | W 5 | — | — | W 6 | — | — | WNW 6 | — | — | — | — |
3 | 3 | — | — | 12 | — | — | 11 | — | — | 13 | — | — | 30 | — | — | 108 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 37 | 37 | 0 | 37 | 37 | 15 | 37 | 37 | 14 | 36 | 36 | 18 | 36 | 37 | 20 | 36 | 37 | 36 | 199 | 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.











