Surf Forecasts:
15th Street surf forecast from 14 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★+): Friday 14 Aug, 8AM (local time) - 3ft (0.9m), 15s 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 Friday (Aug 14) at 8AM. The primary swell is predicted to be 0.9m and 15s period with a secondary swell of 0.5m and 19s. 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+) | 8AM (Fri 14th Aug) | 3ft (0.9m) 15s |
| 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, Rusty here, and I’ve been staring at the charts for 15th Street. To be honest, mate, it’s a bit of a slow burn. There’s swell on the way, but for the first week and a half, you’ll be scratching for anything decent. The real action looks like it might kick off late in the second week, but that’s a long way off.
Right now, starting Friday the 14th, we’ve got a long-period groundswell from the SSW with 2ft to 3ft of swell. The combined energy is weak (583 to 726), and it’s being called marginal. The wind is onshore from the W at 9 mph, which won’t help. It’s a beginner-friendly break, but the conditions are “marginal” at best. Saturday the 15th sees a similar story: 3ft to 4ft from the SSW, but the wind is still onshore and the surf quality is poor. Sunday the 16th through to Wednesday the 19th is much the same—3ft dropping to 2ft, onshore winds, and the combined energy stays weak (370 to 537). The water temperature is about average for the time of year, nothing special.
From Thursday the 20th to Friday the 21st, the swell drops further to 2ft to 3ft, the wind turns cross-onshore, and the energy collapses to 173. This is a flat spell. Saturday the 22nd sees a tiny bump to 3ft, but it’s still marginal. Sunday the 23rd to Monday the 24th is flat again with 2ft to 2ft, and the wind is cross-onshore, making it choppy.
Things start to look a little more interesting on Wednesday the 26th. We get a pulse of 2ft to 4ft S swell with a 14 to 15-second period, and the combined energy climbs to 767. The wind is light and onshore, so it’s still marginal, but the energy is picking up. Then on Thursday the 27th, we see a real change: the swell jumps to 6ft from the S, with a period of 14 seconds. The combined energy is now 1514, which is moderate. The wind is light cross-onshore, but the size is getting up there. This is not for beginners—over 5ft, it’s a challenge. For Friday the 28th, the swell peaks at 8ft from the SSW, with a period of 13-14 seconds. The energy is strong (2294). This is expert-only territory, over 8ft. The wind is light cross-onshore, but still, the size is serious. Saturday the 29th drops back to 6ft, with energy at 921, still moderate.
If you’re looking for the standout, it’s got to be Thursday the 27th and Friday the 28th. The swell is solid, from the S and SSW, with moderate to strong energy. The wind is light, so the surf could be clean. This is the best on offer, but it’s for experienced surfers only. Friday the 28th, with 8ft, is the biggest day, but it’s a heavy paddle. The long period (14 seconds) means the waves will have good shape, but at a beach-and-reef break like 15th Street, it might break a bit straight. Still, the energy is there.
For the first week, it’s a write-off. The crowds are often present here, but with the poor conditions, it’ll be quiet. The second week is where the hope lies. The forecast is promising but less certain that far out. Keep an eye on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Fri morning, min 20°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Tue afternoon, min 21°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
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 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 17 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph | |||||||||||||||||||||
292 | 404 | 921 | 417 | 683 | 666 | 493 | 443 | 367 | 330 | 264 | 321 | 232 | 243 | 339 | 382 | 387 | 242 | 236 | 236 | 170 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | cross-on | on | cross-on | cross | on | on | glassy | on | on | glassy | on | on | glassy | cross-on | on | cross-on |
High Tide | 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 | 2:32PM1.82m | 3:46PM1.79m | |||||||||
Low Tide | 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 | 7:00AM1.12m | 10:58PM0.76m | 00:18AM0.65m | |||||||||
6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | |
— | 7:35 | — | — | 7:34 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:30 | — | — | 7:29 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 21 | 21 | 21 | 20 | 22 | 22 | 21 | 24 | 23 | 23 | 24 | 25 | 22 | 24 | 24 | 22 | 24 | 24 | 23 |
Feels °C | 22 | 22 | 22 | 21 | 20 | 20 | 22 | 22 | 21 | 24 | 22 | 24 | 25 | 25 | 23 | 25 | 24 | 24 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | W 6 | W 7 | W 8 | WNW 8 | SSW 15 | W 7 | SSW 16 | SSW 15 | W 7 | W 7 | W 7 |
255 | 404 | 921 | 417 | 683 | 666 | 493 | 443 | 367 | 330 | 66 | 89 | 121 | 118 | 339 | 86 | 387 | 242 | 83 | 66 | 52 | |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SW 14 | S 12 | SW 14 | S 11 | W 5 | W 6 | S 10 | W 6 | W 6 | SSW 14 | SSW 14 | SSW 16 | SSW 17 | W 9 | SSW 16 | W 7 | W 7 | SSW 14 | SSW 14 | SSW 14 |
292 | 251 | 43 | 191 | 37 | 19 | 23 | 18 | 40 | 47 | 264 | 321 | 232 | 243 | 96 | 382 | 61 | 43 | 236 | 236 | 170 | |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | WSW 8 | S 11 | W 11 | S 11 | S 11 | W 11 | S 10 | S 10 | SSW 18 | S 9 | SSW 13 | SSW 13 | SW 19 | SW 20 | W 14 | SW 18 | SW 19 | WNW 13 | WNW 12 |
36 | 61 | 12 | 38 | 10 | 20 | 20 | 9 | 8 | 8 | 32 | 7 | 114 | 98 | 15 | 16 | 4 | 50 | 56 | 17 | 27 | |
Wind waves Height (m) Direction Period (s) | — | W 7 | — | WNW 4 | W 5 | — | — | W 5 | WNW 6 | — | — | — | — | — | — | — | — | — | — | — | — |
— | 9 | — | 6 | 11 | — | — | 29 | 55 | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 37 | 37 | 18 | 37 | 37 | 36 | 37 | 37 | 18 | 36 | 37 | 0 | 36 | 37 | 0 | 37 | 37 | 0 | 37 | 37 | 9 |
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.











