
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, 8AM (local time) - 7ft (2.1m), 14s period, SSW swell with 1,680 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 11PM (local time) - 4.5ft (1.3m), 16s 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 Friday (Sep 04) at 11PM. The primary swell is predicted to be 1.3m and 16s period with a secondary swell of 0.9m and 13s. 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 14s and forecast to arrive on Monday (Sep 07) at 8AM. 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 (Fri 4th Sep) | 4.5ft (1.3m) 16s |
| Best Surf | 11PM (Fri 4th Sep) | 4.5ft (1.3m) 16s |
| Most Powerful | 8AM (Mon 7th Sep) | 7ft (2.1m) 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 on the cards for 15th Street. It's a bit of a mixed bag over the next couple of weeks, so let's get into it.
The first real window of surf kicks off on Friday the 4th of September. We've got a solid groundswell rolling in, with 3ft sets from the SSW at a very long 17 seconds. The water is sitting at 75°, which is a solid 6° warmer than usual for this time of year – that's really unusual, and you'll feel that difference. The combined energy is moderate at 826, and with a light WSW offshore breeze, it should be clean. It's not the biggest, but it's a nice start.
Saturday the 5th looks a touch better. The swell bumps up to 4ft from the S, with a 14-second period and the combined energy climbing to 1215. Again, we've got light offshore winds from the W. It's a consistent spot, so expect a few heads out as it's often crowded. The quality is average, but it's the best of the early run.
Sunday the 6th sees the swell push to 6ft from the S, with a period of 14 seconds and a hefty 1447 combined energy. But the wind swings N, turning cross-shore, and it'll be a bit bumpy. This is getting into the size that's a bit much for beginners. The quality drops off.
Monday the 7th is the standout in the first week, even with the caveats. The swell peaks at 7ft from the SSW at 14 seconds, with a massive 1701 combined energy – that's strong wave energy. The wind is offshore from the WNW in the morning, so it'll be clean. That's a lot of water moving, and over 8ft it's expert territory, but at 7ft, it's a solid, powerful wave for anyone comfortable in bigger surf. The afternoon gets a cross-onshore and choppy, so the morning is the window.
From Tuesday the 8th, the swell starts to back off, dropping from 6ft down to 3ft by Thursday the 10th. The winds stay mostly offshore, but the energy tails off, and the scores are marginal. It's still surfable, but nothing special.
Then we hit a real dry spell. From Friday the 11th right through to Tuesday the 15th of September, it's pretty poor. The swell drops to under 3ft, and the combined energy falls below 500. The wind is on it, and the conditions are just not there. There's a gap of about four days with no real surf to speak of.
There's a little flicker of life on the 14th with a 5ft W swell, but it's a short period of 8 seconds, which is weak and won't hold up well. Not worth getting excited about.
The second week, from the 15th onwards, is a waiting game. The swell is tiny, 2ft to 3ft, with some very long periods (20+ seconds) that are better suited for a point or reef, not a beach and reef setup like 15th Street. The energy is weak, and the scores are poor. There's not a single standout in the second week. The best bet is to keep an eye on the forecasts, because it tends not to stay this flat for long. For now, the best day on offer is Monday the 7th, with clean, offshore conditions and a solid 7ft SSW groundswell.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sun morning, min 19°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Mon afternoon, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 17 | SSW 16 | SSW 16 | S 14 | SW 16 | S 14 | S 14 | S 13 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SW 17 | SW 17 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
587 | 717 | 612 | 637 | 729 | 1190 | 1402 | 839 | 1512 | 1676 | 1558 | 1326 | 995 | 980 | 715 | 466 | 375 | 419 | 560 | 502 | 483 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | on | on | cross-on | cross | cross-on | cross-on | on | cross-on | glassy | cross-on | cross-on | cross-on | on | on | glassy | on | on | cross-on |
High Tide | 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 | 9:32AM1.98m | 9:20PM2.20m | ||||||||
Low Tide | 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 | 3:17PM0.61m | 3:45AM0.28m | ||||||||
6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:02 | — | — | 7:01 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 24 | 24 | 23 | 26 | 26 | 24 | 25 | 26 | 24 | 25 | 25 | 24 | 26 | 25 | 24 | 25 | 25 | 24 |
Feels °C | 22 | 21 | 21 | 23 | 24 | 22 | 23 | 25 | 25 | 25 | 25 | 24 | 24 | 23 | 23 | 24 | 24 | 25 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 16 | S 14 | S 13 | S 14 | S 14 | S 13 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 11 | SW 10 | SW 17 | SW 16 | WSW 10 |
587 | 717 | 612 | 637 | 694 | 1190 | 1402 | 839 | 1512 | 1676 | 1558 | 1326 | 995 | 980 | 715 | 466 | 375 | 192 | 560 | 502 | 284 | |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SSE 14 | S 14 | SSW 16 | SW 16 | W 10 | W 10 | SSW 15 | WSW 11 | SW 10 | W 11 | WNW 4 | SW 18 | S 22 | SW 16 | SW 16 | SW 16 | SW 17 | SW 9 | SW 9 | SW 16 |
81 | 269 | 377 | 512 | 729 | 56 | 30 | 596 | 11 | 4 | 2 | 11 | 152 | 9 | 167 | 211 | 326 | 419 | 117 | 114 | 483 | |
Swell 3 Height (m) Direction Period (s) | SSE 14 | SW 10 | SW 11 | SW 12 | S 10 | W 13 | SW 20 | SW 11 | — | — | — | SW 18 | SSW 21 | W 10 | W 4 | W 5 | SSW 12 | SSW 12 | S 12 | SSW 12 | SSW 11 |
158 | 50 | 60 | 66 | 70 | 14 | 15 | 18 | — | — | — | 50 | 44 | 2 | 9 | 13 | 14 | 81 | 71 | 46 | 38 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | WNW 4 | WNW 4 | W 5 | WNW 6 | — | WNW 4 | WNW 4 | — | WNW 5 | WNW 5 | — | — | — | — |
— | — | — | — | — | — | — | 17 | 15 | 21 | 25 | — | 8 | 7 | — | 14 | 7 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 37 | 36 | 0 | 36 | 36 | 20 | 2 | 37 | 37 | 36 | 37 | 0 | 36 | 37 | 36 | 36 | 36 | 0 | 36 | 37 | 20 |
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.










