
Surf Forecasts:
15th Street surf forecast from 3 Sep 2026:
- Best quality surf: Saturday 5 Sep, 8AM (local time) - 3.5ft (1.0m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 6 Sep, 11AM (local time) - 6ft (1.8m), 14s period, S swell with 1,243 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 2AM (local time) - 2.5ft (0.7m), 17s 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 (Sep 03) at 2AM. The primary swell is predicted to be 0.7m and 17s period with a secondary swell of 0.8m and 6s. Another secondary swell of 0.9m and 12s is also forecast. 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 1.8m 14s and forecast to arrive on Sunday (Sep 06) at 11AM. 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 3rd Sep) | 2.5ft (0.7m) 17s |
| Best Surf | 8AM (Sat 5th Sep) | 3.5ft (1.0m) 16s |
| Most Powerful | 11AM (Sun 6th Sep) | 6ft (1.8m) 14s |
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 shaping up for 15th Street over the next couple of weeks.
First up, the water is running at 76°F right now, which is much warmer than normal for this time of year – a solid 8°F above average. That’s a real treat if you’re jumping in without a full suit.
Now, the bad news: the start of this forecast is a bit of a dud. The first few days are pretty much a write-off. Wednesday the 2nd and Thursday the 3rd are showing poor surf conditions, so don’t bother paddling out. There’s a bit of energy in the water – but the winds are onshore and the quality just isn’t there.
We start to see a glimmer of hope on Friday the 4th. The swell picks up a touch, with a 3ft to 4ft SSW groundswell pushing through. The period is a solid 16 to 17 seconds, meaning long lines and good shape, but it's still a marginal call. The wind is cross-onshore or onshore, so it’s not clean.
Saturday the 5th is similar – 3ft to 4ft of SSW swell with that long period, but the wind stays onshore. Still marginal.
Now, here’s where it gets interesting. Sunday afternoon on the 6th of September is the standout of the whole forecast. We’ve got a 5ft S swell, period dropping to 13 seconds. More importantly, the wind goes glassy. Absolutely dead calm. That’s the window you want. The report says excellent surf conditions for experienced surfers, and I’d back that. At 5ft, it’s not for beginners, but for anyone with a bit of time in the water, this is the session to target. Clean, lined-up sets. The only downside is the crowd factor – 15th Street is often busy, so expect company.
Monday the 7th and Tuesday the 8th are still rideable with 5ft to 6ft SSW swell and onshore winds, but it’s not the same quality as that Sunday glass-off. After that, the swell tails off. From Wednesday the 9th onward, we drop under 4ft and things go fizzle. By the second week, it’s mostly poor surf with small, weak swells and onshore or cross-onshore wind. Nothing worth getting excited about until Wednesday the 16th and Thursday the 17th, where we see a few pulses of very long-period SSW/SW swell (18 to 21 seconds), but only at 2ft to 2ft. That’s tiny, and even with excellent period, it’s not going to do much at a beach-and-reef setup like this.
So, to wrap it up: the best bet is Sunday afternoon, September 6th. Get on it early, watch for the glass-off, and you’ll have some fun, clean 5ft sets. Everything else in the fortnight is either poor or marginal. Stay patient.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sat morning, min 20°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun afternoon. Warm (max 24°C on Mon morning, min 21°C on Sun afternoon). Wind will be generally light. | |||||||||||||||||||
Wed 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
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 13 | SW 17 | SW 15 | SW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | S 14 | S 14 | S 13 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 |
Wave Graph | ||||||||||||||||||||
242 | 295 | 239 | 455 | 651 | 587 | 717 | 612 | 512 | 620 | 1110 | 1243 | 737 | 1240 | 1074 | 960 | 975 | 828 | 865 | 598 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | on | on | glassy | cross-on | on | cross | on | on | cross-on | cross-on | glassy | cross | on | on | cross | on | on | cross-on |
High Tide | 2:38AM1.23m | 1:47PM1.99m | 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 | ||||||||
Low Tide | 8:22PM0.65m | 6:23AM1.10m | 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 | |||||||
— | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | |
7:13 | — | — | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 22 | 22 | 20 | 22 | 22 | 21 | 24 | 23 | 23 | 23 | 23 | 22 | 24 | 24 | 22 | 23 | 23 | 21 |
Feels °C | 20 | 21 | 21 | 20 | 20 | 22 | 21 | 22 | 24 | 22 | 23 | 23 | 25 | 23 | 24 | 22 | 21 | 22 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | W 6 | WNW 6 | SW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | S 13 | S 13 | S 14 | S 14 | S 13 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 |
242 | 40 | 51 | 455 | 651 | 587 | 717 | 612 | 434 | 417 | 1110 | 1243 | 737 | 1240 | 1074 | 960 | 975 | 828 | 865 | 598 | |
Swell 2 Height (m) Direction Period (s) | W 6 | SSW 12 | SSW 11 | SSW 10 | W 6 | W 6 | SSE 14 | SSE 13 | SSW 16 | SSW 16 | WNW 5 | W 6 | SSW 15 | W 6 | W 6 | W 11 | WNW 6 | WNW 6 | SW 21 | W 5 |
32 | 199 | 138 | 55 | 40 | 49 | 261 | 282 | 512 | 620 | 9 | 17 | 428 | 15 | 17 | 2 | 12 | 12 | 18 | 27 | |
Swell 3 Height (m) Direction Period (s) | SW 16 | SW 17 | SW 15 | SW 12 | SW 11 | SSE 15 | SW 10 | W 5 | W 6 | S 10 | SW 10 | SW 20 | SW 11 | WSW 11 | SW 19 | WSW 10 | SW 18 | SW 18 | W 10 | SW 16 |
129 | 295 | 239 | 72 | 61 | 167 | 50 | 12 | 15 | 49 | 15 | 15 | 18 | 11 | 57 | 10 | 50 | 111 | 2 | 211 | |
Wind waves Height (m) Direction Period (s) | — | — | — | W 6 | — | — | W 6 | — | — | — | WNW 13 | — | W 6 | — | — | WNW 6 | — | — | W 6 | WNW 5 |
— | — | — | 33 | — | — | 32 | — | — | — | 99 | — | 24 | — | — | 10 | — | — | 22 | 31 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 36 | 0 | 36 | 37 | 0 | 37 | 37 | 2 | 36 | 36 | 18 | 37 | 0 | 14 | 36 | 178 | 2 | 36 | 37 | 14 |
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.










