Surf Forecasts:
13th Street surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 8AM (local time) - 2.5ft (0.8m), 15s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 11AM (local time) - 2.5ft (0.8m), 15s period, SSW swell with 270 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 5AM (local time) - 2.5ft (0.7m), 15s period with SSW swell.
Best Forecast Surf Conditions for 13th Street this week:
The surf forecast for 13th Street over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 5AM. The primary swell is predicted to be 0.7m and 15s period with a secondary swell of 0.9m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at 13th Street in the next 16 days are 0.8m 15s and forecast to arrive on Wednesday (Aug 19) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 14s period and expected on Monday (Aug 24) at 8AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 19th Aug) | 2.5ft (0.7m) 15s |
| Best Surf | 8AM (Wed 19th Aug) | 2.5ft (0.8m) 15s |
| Most Powerful | 11AM (Wed 19th Aug) | 2.5ft (0.8m) 15s |
Table - best surf conditions forecast for 13th Street over the next 16 days.
The Lowdown
Right, I'm Rusty. Let's have a look at what the charts are saying.
It's a pretty quiet stretch ahead, folks. The only spot on the radar is 13th Street, and honestly, it's a tough one to get excited about. This break is rated as an advanced wave, and it's inconsistent, so it needs things to line up perfectly, but the whole 16-day window is looking like one long gap of poor surf conditions. There's nothing happening in the first week that’s worth paddling out for. The swell is tiny, the winds are either cross-on or onshore, and the energy is weak. We’re talking combined swell energy as low as 70 in places. You just aren't going to find a ride.
The water temperature is sitting at 70°, which is a touch warmer than normal for this time of year, but with no decent waves, that's a small comfort.
There is a glimmer, way down the track, on the 29th of August. The swell finally bumps up a bit, hitting about 4ft from the SSW with a proper long period of 18 seconds. The combined energy jumps into three digits – 742 – so there's a bit more push. However, the wind is still cross-on, which keeps it from being clean. The forecast only rates it as a marginal surf option. It's just not good enough to call a standout, especially with that long-period groundswell hitting an exposed spot, which can make for a tricky, straight-breaking closeout. Even then, the days after drop back down.
The same goes for the 30th of August, with a similar 4ft SSW swell and a 16-second period, but again the wind is light cross-on.
So, what’s the verdict? There’s no real high point here, nothing to set your watch by. 13th Street is an advanced break, but the conditions are simply not delivering. It’s the kind of blank run that happens in this area.
Stay patient, and keep watching the sky.
Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 20°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sat afternoon, min 22°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 14 | SSW 14 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 15 | SSW 15 | SSW 16 | SW 18 | SSW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 186 | 183 | 147 | 155 | 188 | 270 | 217 | 174 | 165 | 186 | 113 | 101 | 99 | 98 | 62 | 71 | 167 | 85 | 111 | 215 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | on | on | glassy | cross-on | cross-on | cross-on | on | on | cross-on | on | on | on | cross-on | on | glassy |
High Tide | 1:44AM1.38m | 1:48PM1.90m | 3:33AM1.23m | 2:40PM1.84m | 3:53PM1.82m | 8:28AM1.37m | 5:11PM1.85m | 8:33AM1.44m | 6:12PM1.93m | 8:47AM1.50m | 7:00PM2.03m | |||||||||
Low Tide | 7:58PM0.79m | 6:54AM0.97m | 9:23PM0.80m | 7:10AM1.14m | 11:04PM0.75m | 00:23AM0.65m | 10:13AM1.36m | 1:14AM0.53m | 12:00PM1.33m | 1:52AM0.43m | 12:55PM1.25m | 2:23AM0.34m | ||||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — |
 | 7:36 | — | — | 7:35 | — | — | 7:34 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 23 | 25 | 23 | 25 | 26 | 24 | 25 | 25 | 22 | 25 | 25 | 23 | 26 | 27 | 25 | 26 | 27 | 24 |
Feels °C | 22 | 22 | 23 | 24 | 23 | 26 | 25 | 25 | 25 | 25 | 23 | 26 | 24 | 24 | 26 | 25 | 26 | 26 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | W 6 | W 6 | W 6 | W 6 | W 6 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | W 10 | SSW 15 | SSW 13 | SSW 13 | SSW 14 |
| kJ | 186 | 59 | 50 | 51 | 67 | 54 | 217 | 174 | 165 | 186 | 113 | 101 | 99 | 98 | 62 | 48 | 167 | 67 | 98 | 215 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SSW 14 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | W 7 | W 5 | W 6 | W 6 | W 6 | W 6 | W 6 | WNW 11 | W 7 | SSW 15 | W 10 | SSW 16 | SW 18 | W 5 |
| kJ | 32 | 183 | 147 | 155 | 188 | 270 | 39 | 14 | 16 | 9 | 6 | 6 | 6 | 39 | 8 | 71 | 30 | 85 | 111 | 18 |
Swell 3 Height (m) Direction Period (s) | S 10 | S 10 | SSW 13 | SSW 13 | S 9 | S 9 | S 8 | SW 18 | SW 19 | WNW 12 | S 10 | SW 18 | SSE 10 | SSE 10 | SSE 10 | SW 12 | SSE 10 | W 6 | SSE 10 | SW 18 |
| kJ | 8 | 7 | 67 | 66 | 2 | 1 | 6 | 12 | 57 | 15 | 8 | 50 | 18 | 19 | 19 | 37 | 19 | 10 | 20 | 112 |
Wind waves Height (m) Direction Period (s) | W 6 | — | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | — |
| kJ | 30 | — | — | 84 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 141 | 24 | 31 | 71 | 30 | 19 | 141 | 0 | 30 | 31 | 30 | 30 | 98 | 11 | 53 | 141 | 30 | 30 | 93 | 0 |
Best forecast wave conditions in Orange County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the 13th Street Surf forecast
The above surf forecast table for 13th Street provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at 13th Street can be found by selecting the local surf guide option on the grey menu. Our 13th 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 (13th 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 13th 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.
13th Street is 3 km (2 miles) from the city of Seal Beach. If you plan a vacation in Orange County, look for hotels and other accommodation in Seal Beach. Seal Beach has rooms for a wide range of budgets as well as car hire and transport links.
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