15th Street Surf Break

Lat Long: 33.00° N 117.28° W

15th Street Surf Forecast and Surf Report

Issued: 4 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's 15th Street sea temperature is
21.7° C
1.6° 

15th Street surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


15th Street surf forecast from 20 Aug 2026:

  • Best quality surf: Monday 24 Aug, 5AM (local time) - 2.5ft (0.8m), 14s period, SSW swell with glassy winds.
  • Most powerful swell: Tuesday 25 Aug, 2AM (local time) - 2.5ft (0.8m), 17s period, SW swell with 330 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 2AM (local time) - 2.5ft (0.8m), 15s 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 (Aug 20) at 2AM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.7m and 6s. 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 0.8m 17s and forecast to arrive on Tuesday (Aug 25) at 2AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Thu 20th Aug)2.5ft (0.8m) 15s
Best Surf 5AM (Mon 24th Aug)2.5ft (0.8m) 14s
Most Powerful 2AM (Tue 25th Aug)2.5ft (0.8m) 17s

Table - best surf conditions forecast for 15th Street over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s cookin’ for 15th Street. Gotta be straight with you – this stretch of the forecast is a real test of patience. The first decent chance doesn’t even pop up until the middle of next week, so we’re looking at a solid gap of quiet days right now.

The first real glimmer of hope comes on Wednesday afternoon, August 19th. We’re looking at a small 3ft swell coming from the SSW with a 16-second period. That’s proper groundswell energy, but the wave comment says it all: “poor surf conditions.” The wind is light and offshore, which is a good look, but the swell just isn’t doing the job. The combined energy reading is 448 (moderate), but it’s not translating into anything rideable. The water is 71°, which is a touch warmer than normal for this time of year.

Honestly, from there we slide into a string of days where the swell stays tiny – between 2ft and 3ft – and the wind stays mostly cross-on or on. The period drops to 13-14 seconds, and the energy levels are all in the moderate range (174 to 467). It’s all rated as “poor surf” or “marginal” at best. Nothing to get excited about.

The real standout, the one that makes this whole outlook worth reading, is the very last entry. On Thursday afternoon, September 3rd, we get a proper shift. The wind goes glassy – calm, with no wind at all – and the swell is a clean 3ft from the SSE, with a 14-second period. The combined energy reading hits 593 (moderate), and the wave comment says “expect very good surf conditions.” This is the one. Clean, glassy, and a little punchy for a beach and reef setup. That’s the best on offer.

The day before that, Thursday morning, September 3rd, is also worth a mention. It’s got a 3ft SSE swell with a 14-second period (energy at 550), and the wind is offshore. It’s only rated as “marginal,” but it’s a step up from the rest of the week.

For the rest of the run, it’s a long grind. From August 20th through to September 2nd, we’re talking mostly tiny, weak swells with cross-on or onshore winds. The energy is moderate, but the quality is poor. The swell stays under 3ft most of the time, and the periods are short to moderate. It’s a classic case of waiting for the next system to push through.

So, to sum it up: the first week is a bust. The second week builds slowly, and the real payoff is that glassy, clean afternoon on Thursday, September 3rd. That’s your window. The rest is just waiting and watching.

Stay patient, and keep your eye on that glass-off.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Sat morning, min 21°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 25°C on Sat afternoon, min 22°C on Sat night). Wind will be generally light.

Wed
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
1
0
2
1
1
1
0
1
2
0
0
1
0
0
3
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
16
0.8
SSW
15
0.8
SSW
14
0.8
SSW
14
0.7
SSW
14
0.7
SSW
13
0.6
SSW
13
0.4
SW
17
0.5
SSW
13
0.8
SSW
14
0.7
SSW
15
0.6
SW
19
0.6
SW
18
0.8
SSW
14
0.6
SW
18
0.6
SW
17
0.8
SW
17
0.7
SW
16
0.6
SW
16
0.6
SW
16
Wave Graph
Metric surfscale
Energy kJ
387
242
239
236
170
156
137
98
90
239
222
224
197
273
194
177
330
264
208
203
Wind (km/h)
10
W
5
W
10
SW
10
SW
5
SW
10
WSW
10
WSW
0
SW
10
WSW
10
W
5
W
10
WSW
10
W
5
NW
10
W
10
W
5
W
10
WSW
10
WNW
5
WNW
Wind State
on
glassy
cross-on
cross-on
glassy
cross-on
on
glassy
on
on
glassy
on
on
cross-on
on
on
glassy
on
on
cross-on
High Tide
2:32PM1.82m
3:46PM1.79m
8:25AM1.36m
5:06PM1.82m
8:27AM1.43m
6:08PM1.91m
8:41AM1.49m
6:55PM2.01m
8:57AM1.55m
7:34PM2.10m
9:15AM1.61m
8:10PM2.17m
Low Tide
10:58PM0.76m
00:18AM0.65m
10:08AM1.35m
1:09AM0.54m
11:57AM1.32m
1:47AM0.43m
12:51PM1.24m
2:18AM0.34m
1:30PM1.14m
2:45AM0.28m
2:05PM1.04m
3:11AM0.24m
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:16
6:16
6:16
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:30
7:29
7:28
7:25
7:24
7:23
7:22
 mm
Temp °C
23
22
23
23
22
24
24
22
25
25
23
25
24
23
25
25
22
24
24
23
Feels °C
23
24
24
23
24
25
24
24
26
25
24
25
24
25
25
25
23
24
24
24
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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