Surf Forecasts:
15th Street surf forecast from 12 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 8AM (local time) - 3ft (0.9m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 8AM (local time) - 3ft (0.9m), 17s period, SSW swell with 475 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 11PM (local time) - 2ft (0.6m), 14s period with SW 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 (Sep 12) at 11PM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.6m 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 0.9m 17s and forecast to arrive on Wednesday (Sep 16) at 8AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 12th Sep) | 2ft (0.6m) 14s |
| Best Surf | 8AM (Wed 16th Sep) | 3ft (0.9m) 17s |
| Most Powerful | 8AM (Wed 16th Sep) | 3ft (0.9m) 17s |
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.
To be straight with you, the next few days are a write-off. We’ve got small, weak swells and the wind is all wrong – mostly cross-onshore, making everything choppy and messy. There’s really nothing to get excited about until mid-week.
Now, buckle up, because Wednesday the 16th is where things start to look interesting. 15th Street’s gonna wake up. We’ve got a clean 3 ft swell rolling in from the SSW with a period of 17 seconds – that’s proper long-period groundswell, so expect some real push and shape. The wind swings offshore from the W and it’s light at 6 mph. That’s glassy conditions, folks, and at a spot like this, that’s pure magic. The wave energy is ramping up too, hitting 525 (moderate energy). The water’s sitting at a balmy 74°, which is much warmer than normal for this time of year, so you won’t need a thick suit.
This is the standout. Wednesday morning and afternoon both look solid, with the morning offering a touch more quality. It’s not huge, but for clean, lined-up waves with that long-period push, this is the best we’re going to see. Keep in mind that with a period pushing 17 seconds, the sets will be spaced out – plenty of time to get back out the back. This is a consistent break and can get crowded, so expect some company on the peak.
After Wednesday, we drift back into a marginal zone. Thursday and Friday still have some offshore wind and a little waist-high swell, but the energy drops and the conditions are just a bit “meh.” By the following week, the onshore creep comes back and it’s more of the same – small and choppy. A bit of a bummer after that one good day.
So keep your eyes on Wednesday 16th. That’s your window. Don’t sleep on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sat morning, min 20°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Thu morning, min 19°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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) | SW 14 | SW 14 | SW 14 | SW 13 | SW 19 | W 9 | W 8 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 19 | SW 19 | SW 19 |
Wave Graph  | |||||||||||||||||||||
 kJ | 248 | 208 | 158 | 144 | 130 | 198 | 190 | 192 | 188 | 163 | 157 | 157 | 475 | 339 | 366 | 196 | 246 | 242 | 303 | 303 | 234 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | glassy | on | on | cross-on | on | on | cross-on | on | on | cross-on |
High Tide | 10:28AM2.09m | 10:45PM1.88m | 10:55AM2.09m | 11:29PM1.68m | 11:23AM2.06m | 00:17AM1.49m | 11:52AM1.99m | 1:21AM1.32m | 12:26PM1.89m | 3:50AM1.22m | 1:12PM1.79m | 2:34PM1.72m | |||||||||
Low Tide | 4:42PM0.49m | 4:39AM0.61m | 5:26PM0.51m | 5:03AM0.79m | 6:13PM0.56m | 5:23AM0.96m | 7:07PM0.64m | 5:35AM1.11m | 8:21PM0.72m | 5:02AM1.22m | 10:05PM0.74m | 11:35PM0.67m | |||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — |
 | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:51 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 22 | 24 | 23 | 21 | 23 | 23 | 21 | 22 | 22 | 20 | 22 | 22 | 21 | 23 | 23 | 21 | 23 | 23 | 22 |
Feels °C | 25 | 24 | 24 | 24 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 21 | 22 | 22 | 22 | 23 | 22 | 21 | 22 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | W 6 | W 7 | W 7 | W 9 | W 8 | W 8 | W 9 | W 9 | W 9 | W 8 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 19 | SW 19 | W 6 |
| kJ | 248 | 208 | 42 | 92 | 94 | 198 | 190 | 127 | 97 | 74 | 56 | 51 | 475 | 339 | 366 | 196 | 246 | 242 | 303 | 303 | 58 |
Swell 2 Height (m) Direction Period (s) | W 6 | W 6 | SW 14 | SW 13 | SW 13 | SW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | W 6 | S 10 | S 9 | S 12 | S 12 | SW 21 | SSW 14 | SSW 13 | SSW 13 |
| kJ | 36 | 24 | 158 | 144 | 87 | 85 | 108 | 192 | 188 | 163 | 157 | 157 | 20 | 47 | 27 | 72 | 97 | 212 | 160 | 141 | 139 |
Swell 3 Height (m) Direction Period (s) | S 10 | S 9 | S 9 | S 8 | SW 19 | SW 19 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 20 | SSW 18 | S 10 | W 6 | SSW 12 | SW 21 | SW 21 | SSW 11 | S 11 | S 10 | SW 19 |
| kJ | 29 | 28 | 23 | 12 | 130 | 127 | 84 | 38 | 38 | 37 | 127 | 109 | 30 | 10 | 51 | 160 | 160 | 40 | 59 | 32 | 234 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 5 | W 3 | W 4 | W 5 | W 5 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 6 | 13 | 17 | 25 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 119 | 37 | 2 | 85 | 37 | 14 | 119 | 85 | 14 | 137 | 137 | 0 | 37 | 36 | 20 | 36 | 37 | 20 | 36 | 36 | 6 |
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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