
Surf Forecasts:
15th Street surf forecast from 6 Sep 2026:
- Best quality surf: Thursday 10 Sep, 5AM (local time) - 3ft (0.9m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 6 Sep, 2PM (local time) - 6.5ft (2.0m), 13s period, S swell with 1,443 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 8PM (local time) - 4ft (1.2m), 10s 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 Tuesday (Sep 08) at 8PM. The primary swell is predicted to be 1.2m and 10s period with a secondary swell of 0.4m and 18s. Another secondary swell of 0.7m and 4s 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 2.0m 13s and forecast to arrive on Sunday (Sep 06) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Friday (Sep 11) at 5PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 8th Sep) | 4ft (1.2m) 10s |
| Best Surf | 5AM (Thu 10th Sep) | 3ft (0.9m) 17s |
| Most Powerful | 2PM (Sun 6th Sep) | 6.5ft (2.0m) 13s |
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 menu for 15th Street over the next couple of weeks.
First off, I gotta be straight with you – it’s a pretty grim stretch ahead. The water is sitting at a warm 73°F, which is a good 5°F warmer than normal for this time of year, so it’ll feel like a bathtub, but that’s about the only bright spot. The swell energy is all over the place, but the quality is just not there. We’re looking at a solid week and a half of less-than-stellar conditions before we even get a glimpse of something half-decent.
The action, if you can call it that, kicks off on Saturday the 5th. We've got a south swell at 5ft, but it's coming in with a cross-onshore breeze from the west-northwest. The combined energy is a hefty 1518, but it’s going to be choppy and messy. That’s the story for the next few days: a mix of cross and cross-onshore winds, keeping the surface lumpy. Sunday the 6th sees the swell pick up to 6ft from the south with a 14-second period, but that northwest wind is going to chop it up again. The energy is still high at 1432, but it’s a frustrating one.
We get a slight break on Monday the 7th with a brief window of offshore wind from the west-northwest in the morning, on a 6ft south-southwest swell. The energy is 1225. That’s the cleanest it’s going to be all week, but the forecast still calls it marginal. By the afternoon, the wind swings back to a cross-onshore. Honestly, for the rest of the first week and into the second, we’re chasing our tails. The swell drops off, the winds stay onshore or cross-shore, and the energy drops below 1000. It’s mostly small, weak, and choppy.
There’s a dead zone from around the 11th of September right through to the 18th. The combined energy drops into the 200s and 300s, with swell heights barely scraping 3ft. The wind is mostly cross or cross-onshore, and the period is dropping. It’s just not surfable, and honestly, the conditions look more interesting for a kite than a paddle board.
Now, here’s the long-range promise. Around the 19th of September, we finally see a pulse. Saturday the 19th morning shows a 5ft swell from the west-northwest, but the period is a short 8 seconds. The energy jumps back up to 853. The wind is offshore from the west, so it should be clean. It’s the best looking window in the whole forecast, but it’s still a week and a half out, so take it with a grain of salt. After that, it sinks back into the 2ft to 3ft range with long-period southwest groundswell, but the energy is just not there.
Bottom line: if you’re desperate, the offshore wind on Monday the 7th morning is your best early bet, but don’t expect much. The real standout, if it materializes, is the 19th of September. It’s a long way off, but it’s the only time the stars might align for a clean session.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 28°C on Sun afternoon, min 23°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Wed morning, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
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) | S 14 | S 14 | S 13 | SSW 14 | SSW 12 | SSW 12 | SSW 11 | SSW 13 | SSW 11 | SSW 10 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 |
Wave Graph | |||||||||||||||||||
1225 | 1342 | 835 | 1325 | 947 | 729 | 439 | 653 | 256 | 245 | 214 | 326 | 419 | 540 | 496 | 483 | 395 | 365 | 309 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-on | glassy | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 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 | 10:00AM2.05m | 10:03PM2.06m | |||||||
Low Tide | 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 | 4:00PM0.53m | 4:13AM0.43m | ||||||
— | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 28 | 25 | 26 | 26 | 24 | 27 | 26 | 26 | 29 | 27 | 25 | 26 | 26 | 24 | 25 | 25 | 23 |
Feels °C | 24 | 23 | 26 | 26 | 26 | 25 | 24 | 26 | 24 | 26 | 29 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | SSW 14 | SSW 12 | SSW 12 | SSW 11 | SSW 13 | SSW 11 | SSW 10 | SSW 10 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | W 7 | SW 15 | SW 15 |
1225 | 1342 | 835 | 1325 | 947 | 729 | 439 | 653 | 256 | 245 | 145 | 326 | 419 | 540 | 496 | 483 | 107 | 365 | 309 | |
Swell 2 Height (m) Direction Period (s) | WSW 10 | SW 20 | SSW 16 | WSW 11 | SW 19 | SW 19 | SSW 14 | SW 18 | SSW 13 | W 5 | SW 16 | SW 9 | W 5 | W 6 | W 6 | W 7 | SW 15 | W 7 | W 6 |
43 | 15 | 435 | 11 | 57 | 57 | 165 | 111 | 195 | 16 | 214 | 83 | 12 | 52 | 39 | 58 | 395 | 61 | 40 | |
Swell 3 Height (m) Direction Period (s) | W 13 | — | W 11 | NW 11 | WNW 6 | W 11 | SW 18 | SSW 21 | SW 18 | SW 16 | SSW 13 | SSW 12 | SSW 8 | SSW 12 | SW 8 | SW 8 | SSW 11 | SSE 9 | S 9 |
14 | — | 66 | 5 | 4 | 2 | 50 | 44 | 112 | 214 | 98 | 85 | 45 | 47 | 24 | 14 | 22 | 16 | 25 | |
Wind waves Height (m) Direction Period (s) | — | W 10 | NW 4 | WNW 4 | WNW 10 | WNW 4 | WNW 4 | WNW 5 | WNW 4 | — | — | W 5 | — | — | — | — | — | SSE 3 | — |
— | 49 | 11 | 13 | 33 | 16 | 15 | 13 | 20 | — | — | 14 | — | — | — | — | — | 4 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 36 | 20 | 36 | 24 | 20 | 36 | 37 | 20 | 36 | 36 | 36 | 37 | 102 | 0 | 37 | 16 | 14 | 119 | 119 |
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.










