Surf Forecasts:
15th Street surf forecast from 21 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 5AM (local time) - 4.5ft (1.4m), 13s period, S swell with glassy winds.
- Most powerful swell: Wednesday 26 Aug, 8AM (local time) - 5ft (1.5m), 13s period, S swell with 769 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 11PM (local time) - 1.5ft (0.5m), 13s 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 (Aug 21) at 11PM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.4m 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 1.5m 13s and forecast to arrive on Wednesday (Aug 26) at 8AM. 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+) | 11PM (Fri 21st Aug) | 1.5ft (0.5m) 13s |
| Best Surf | 5AM (Wed 26th Aug) | 4.5ft (1.4m) 13s |
| Most Powerful | 8AM (Wed 26th Aug) | 5ft (1.5m) 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 coming down the pipeline for 15th Street.
We've got a bit of a slow start on the cards, to be honest. The water is sitting at a toasty 71°, which is a touch warmer than normal for this time of year – nice for a paddle without a hood, that's for sure.
The first few days are pretty lackluster. We're looking at a long stretch through until the 25th of August with only tiny, weak swell. Friday the 21st has some waist-high dribble from the SSW, but the combined energy is weak at 255, so it's nothing to get excited about. Saturday and Sunday are even smaller. The wind is offshore, which is the only saving grace, but there's just not enough push to make it worthwhile. It’s going to be a quiet few days for the paddle crew.
Things start to show a bit of life around Tuesday the 25th of August. We see the swell tick up to chest-high from the South (3ft to 4ft) and the wave energy climbs into a solid moderate range (776 to 900). The wind is light and offshore from the West, which is the magic direction for this spot. It’s a long-period groundswell (14-15 seconds), which means nice, lined-up waves with good shape and longer lulls between sets – perfect for a point break or reef setup. This is the standout period, but even then, the scores are modest, so keep your expectations measured.
Wednesday the 26th sees the swell peak at a head-high 5ft from the South with energy in the strong range (1147). However, the wind swings around to a cross-onshore from the SSW, which will chop things up. For a beach and reef setup like this, that wind direction will make it a bit of a bumpy mess. This one looks more like a day for the kite surfers to have a blast than a clean day for a noseride.
The rest of the run into the first week of September looks average at best. There are some pulses of waist to chest-high SSW swell, but the wind is often cross-onshore, making the wave quality marginal. You'll get some semi-clean windows, especially on days with lighter breezes, but nothing that screams "drop everything and go". The crowds at 15th Street can be a factor, so keep that in mind if you're eyeing off one of those cleaner but small windows.
So, to wrap it up: the best bet on offer is the Tuesday the 25th of August. You're looking at clean, chest-high waves with light offshore wind and decent long-period energy. It's not a monster day, but it's the cleanest of the bunch by a long shot. After that, you're sifting through marginal conditions for the rest of the run.
Stay salty,
Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Sun morning, min 22°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Tue morning, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 13 | SSW 13 | SW 17 | SW 18 | SSW 14 | SSW 15 | SW 19 | SW 18 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 16 | S 15 | S 13 | S 13 | S 12 | S 12 | S 11 | S 10 | SSW 18 |
Wave Graph | |||||||||||||||||||||
156 | 137 | 98 | 90 | 239 | 222 | 224 | 197 | 273 | 249 | 177 | 330 | 264 | 602 | 572 | 757 | 600 | 456 | 269 | 206 | 270 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | on | on | glassy | on | on | cross-on | on | on | glassy | on | on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | glassy |
High Tide | 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 | 9:34AM1.68m | 8:44PM2.19m | 9:54AM1.75m | 9:18PM2.17m | |||||||
Low Tide | 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 | 2:39PM0.94m | 3:35AM0.25m | 3:14PM0.84m | 3:59AM0.29m | |||||||
6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | |
— | 7:28 | — | — | 7:25 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 22 | 25 | 25 | 24 | 26 | 26 | 24 | 26 | 26 | 24 | 27 | 26 | 25 | 26 | 26 | 24 | 25 | 26 | 24 |
Feels °C | 26 | 25 | 24 | 26 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 27 | 26 | 26 | 24 | 25 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | W 6 | SSW 14 | SSW 15 | W 6 | SSW 13 | SSW 14 | W 6 | SW 17 | W 6 | WNW 6 | S 15 | S 13 | S 13 | S 12 | S 12 | S 11 | S 10 | S 10 |
156 | 137 | 98 | 28 | 239 | 222 | 40 | 135 | 273 | 38 | 177 | 43 | 56 | 602 | 572 | 757 | 600 | 456 | 269 | 206 | 151 | |
Swell 2 Height (m) Direction Period (s) | W 6 | W 6 | W 6 | SSW 13 | W 6 | W 6 | SSW 13 | SW 18 | W 5 | SW 18 | SSW 13 | SW 17 | SW 16 | WNW 7 | W 7 | W 7 | WNW 7 | W 7 | W 7 | WNW 7 | W 8 |
18 | 20 | 10 | 90 | 19 | 16 | 98 | 197 | 29 | 249 | 93 | 330 | 264 | 62 | 120 | 134 | 86 | 97 | 109 | 67 | 58 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | SSW 16 | SW 17 | SW 18 | SW 19 | SW 19 | SW 19 | S 16 | SW 18 | SSW 12 | S 15 | S 13 | S 13 | SW 16 | S 16 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 14 | SSW 18 |
81 | 51 | 77 | 82 | 57 | 58 | 224 | 45 | 199 | 87 | 38 | 126 | 126 | 208 | 243 | 203 | 201 | 171 | 132 | 138 | 270 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 6 | — | — | WNW 6 | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | 36 | — | — | 37 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 37 | 37 | 0 | 37 | 36 | 0 | 36 | 36 | 36 | 37 | 36 | 0 | 36 | 37 | 14 | 14 | 84 | 14 | 84 | 14 | 0 |
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.











