Surf Forecasts:
15th Street surf forecast from 10 Aug 2026:
- Best quality surf: Friday 14 Aug, 2AM (local time) - 3ft (0.9m), 15s period, SW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with 798 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 8AM (local time) - 2.5ft (0.8m), 14s 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 Monday (Aug 10) at 8AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.3m and 4s. 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 1.2m 17s and forecast to arrive on Saturday (Aug 15) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Mon 10th Aug) | 2.5ft (0.8m) 14s |
| Best Surf | 2AM (Fri 14th Aug) | 3ft (0.9m) 15s |
| Most Powerful | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for 15th Street over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's be straight with you. The next 16 days look pretty grim for 15th Street. It's a beach and reef set-up that's exposed to the swell, but we just aren't getting the right combination of conditions to make it work.
We start off with a big gap. The first few days, from Monday the 10th through to Thursday the 13th, are straight-up poor. Small, weak swell with a combined energy that's just scraping into the moderate range, and that cross-onshore or onshore wind is not doing us any favours. It's choppy and messy.
Friday the 14th sees a slight uptick in energy, but the wave comment says it's marginal. The swell is still small, around 3 ft, and it's coming from the SSW with a period of 18 seconds. That's a long-period groundswell, which can be nice, but it's also prone to breaking a bit too straight on a beach break like this. And with the wind onshore, it's just not going to be clean. The afternoon is even worse.
Saturday the 15th and Sunday the 16th are the best of a bad bunch, but that's not saying much. The swell gets to 4 ft by Saturday afternoon. Still, the wind is onshore or cross-onshore, so you're looking at bumpy, weak waves. The crowd factor is "often" here, so you might have company for a pretty average wave.
From Monday the 17th onwards, it's a slow fade. The swell drops back down, and the energy follows suit. The wind stays onshore or cross-onshore for the whole run. There's a glimmer on Tuesday the 25th, but it's still poor surf. Honestly, this is a stretch where the forecast can change, but as it stands, there's nothing here to get excited about. The set-up looks more interesting for a kite surfer than a paddle surfer right now.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue morning. Warm (max 24°C on Tue morning, min 21°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Wed night, min 20°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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 14 | SSW 14 | SW 20 | SW 19 | SSW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 297 | 207 | 186 | 184 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 358 | 335 | 292 | 404 | 798 | 417 | 683 | 666 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | on | on | on | on | on | on | cross-on | on | glassy | on | on | cross | on | cross-on | cross-on |
High Tide | 9:05AM1.60m | 7:55PM2.46m | 9:38AM1.70m | 8:44PM2.49m | 10:12AM1.79m | 9:30PM2.43m | 10:45AM1.87m | 10:15PM2.29m | 11:18AM1.93m | 10:59PM2.09m | 11:51AM1.96m | 11:44PM1.85m | |||||||
Low Tide | 2:29AM0.02m | 1:40PM1.04m | 3:10AM-0.05m | 2:33PM0.92m | 3:48AM-0.05m | 3:22PM0.82m | 4:24AM0.03m | 4:10PM0.75m | 4:57AM0.17m | 4:59PM0.72m | 5:28AM0.35m | 5:50PM0.72m | |||||||
 |  | |  |  | | | |  | | | | | |  | | | | | |
 | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — |
 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 23 | 23 | 22 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 22 | 20 | 22 | 22 | 21 | 21 | 22 | 21 |
Feels °C | 24 | 24 | 23 | 23 | 25 | 24 | 24 | 23 | 23 | 23 | 23 | 22 | 21 | 23 | 21 | 22 | 21 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 297 | 207 | 139 | 137 | 129 | 319 | 316 | 230 | 264 | 306 | 255 | 358 | 335 | 217 | 404 | 798 | 417 | 683 | 666 |
Swell 2 Height (m) Direction Period (s) | W 4 | SW 20 | SW 20 | SW 19 | SW 18 | SSW 12 | SSW 12 | SW 13 | SW 13 | S 12 | S 11 | S 11 | S 10 | SSW 18 | SW 14 | S 9 | SW 14 | S 11 | S 11 |
| kJ | 6 | 103 | 186 | 184 | 114 | 49 | 47 | 61 | 61 | 47 | 60 | 59 | 53 | 292 | 214 | 28 | 189 | 36 | 35 |
Swell 3 Height (m) Direction Period (s) | SW 11 | W 12 | SW 16 | SW 14 | SW 14 | SW 15 | SW 13 | S 13 | S 12 | SSW 11 | SW 12 | SSW 21 | SSW 20 | S 11 | S 10 | SSW 9 | S 11 | S 7 | W 13 |
| kJ | 30 | 11 | 39 | 33 | 74 | 75 | 45 | 50 | 47 | 22 | 23 | 44 | 149 | 36 | 55 | 7 | 37 | 4 | 13 |
Wind waves Height (m) Direction Period (s) | — | W 4 | — | — | — | WNW 12 | SSW 9 | — | — | W 6 | — | W 8 | — | — | WNW 8 | W 4 | WNW 4 | W 3 | W 5 |
| kJ | — | 3 | — | — | — | 28 | 8 | — | — | 3 | — | 12 | — | — | 20 | 8 | 6 | 8 | 24 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 8 | 37 | 37 | 0 | 37 | 36 | 1 | 37 | 37 | 8 | 37 | 37 | 0 | 36 | 37 | 2 | 36 | 36 | 36 |
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.
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