Surf Forecasts:
15th Street surf forecast from 22 Aug 2026:
- Best quality surf: Thursday 27 Aug, 5AM (local time) - 3.5ft (1.1m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 26 Aug, 5PM (local time) - 6ft (1.8m), 14s period, S swell with 1,373 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 2AM (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 Saturday (Aug 22) at 2AM. 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 1.8m 14s and forecast to arrive on Wednesday (Aug 26) at 5PM. 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 (Sat 22nd Aug) | 1.5ft (0.5m) 13s |
| Best Surf | 5AM (Thu 27th Aug) | 3.5ft (1.1m) 14s |
| Most Powerful | 5PM (Wed 26th Aug) | 6ft (1.8m) 14s |
Table - best surf conditions forecast for 15th Street over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what's cookin' at 15th Street.
We're startin' off with a real weak sauce. The first few days bring some knee-high dribble, about 0.5 ft to 0.8 ft from the southwest. It's clean with light offshore winds, but there's no grunt. The combined energy is low, around 200 to 315, so you're really just bobbin' around. The water's runnin' at 71°, a touch warmer than normal.
Friday 21st and Saturday 22nd are mostly flat, not worth wetting your wetsuit. The energy bumps a little through Sunday 23rd into Monday 24th, but the swell stays tiny and the wind stays light offshore. This stretch is a real snoozer.
Now, things get a little more interesting later. Wednesday 26th sees a bump in size, with 5 ft to 6 ft south swell (13-14 second period). The combined energy jumps to 1349-1462, so there's some solid juice. But, the wind turns cross-onshore and chops it up. It's a maybe, not a hell yes.
The real standout window is early September. Thursday 3rd into Friday 4th looks tasty. On Thursday afternoon, the wind goes glassy with a 4 ft south swell at 14 seconds and combined energy at 1141. The conditions look excellent for experienced surfers. Then Friday 4th and Saturday 5th pump up to 5 ft to 7 ft south swell (14-15 seconds), with energy readings between 1702 and 2315. The wind stays light cross-onshore or offshore, so it should be clean even when it gets bigger. The 7 ft forecast on Saturday 5th is for experts only due to size, but it's got the power.
The best bet for the whole run is Thursday afternoon, September 3rd at 15th Street. You've got glassy conditions, a solid 4 ft groundswell from the south (14 seconds), and strong moderate energy (1141). That's a session you don't want to miss. The Friday 4th afternoon into Saturday 5th is a close second, with bigger swell (6 ft to 7 ft) and solid energy, but the cross-onshore breeze might steal a bit of that perfection.
Remember, 15th Street is consistent and can get crowded, so expect company. For the bigger days over 8 ft, it's only for the brave.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Sun afternoon, min 22°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 22°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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) | SW 17 | SW 18 | SSW 14 | SSW 15 | SW 19 | SW 18 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | S 12 | S 14 | S 14 | S 13 | SSW 12 | S 12 | SW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 98 | 90 | 239 | 222 | 224 | 197 | 273 | 249 | 177 | 330 | 264 | 208 | 236 | 503 | 1373 | 905 | 467 | 336 | 218 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | cross-on | on | on | cross | cross-on | cross-on | glassy | on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | glassy |
High Tide | 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 | 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 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — |
 | — | — | 7:25 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 25 | 25 | 24 | 26 | 27 | 25 | 26 | 25 | 23 | 26 | 26 | 24 | 26 | 25 | 24 | 25 | 25 | 24 |
Feels °C | 24 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 25 | 24 | 26 | 26 | 25 | 26 | 24 | 25 | 25 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | W 6 | SSW 14 | SSW 15 | W 6 | SSW 13 | SSW 14 | SW 18 | W 6 | SW 17 | SW 16 | S 13 | S 12 | S 14 | S 14 | S 13 | SSW 12 | S 12 | SSW 11 |
| kJ | 98 | 28 | 239 | 222 | 28 | 135 | 273 | 249 | 24 | 330 | 264 | 123 | 236 | 503 | 1373 | 905 | 467 | 336 | 187 |
Swell 2 Height (m) Direction Period (s) | W 6 | SSW 13 | W 6 | W 6 | SSW 13 | SW 18 | W 5 | W 6 | SW 17 | S 13 | W 6 | SW 16 | W 6 | W 7 | WNW 7 | W 7 | WNW 7 | SW 14 | SW 14 |
| kJ | 10 | 90 | 19 | 15 | 137 | 197 | 25 | 26 | 177 | 126 | 27 | 208 | 62 | 109 | 67 | 68 | 89 | 214 | 218 |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 18 | SW 19 | SW 19 | SW 19 | S 16 | SW 18 | SSW 12 | SSW 13 | W 5 | S 13 | W 6 | SW 16 | S 11 | W 14 | SW 15 | S 10 | W 7 | W 8 |
| kJ | 77 | 82 | 57 | 58 | 224 | 45 | 199 | 87 | 93 | 21 | 125 | 28 | 203 | 255 | 37 | 104 | 121 | 45 | 57 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 25 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 37 | 0 | 37 | 36 | 2 | 36 | 36 | 5 | 37 | 37 | 0 | 36 | 37 | 0 | 119 | 14 | 14 | 84 | 84 |
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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