Surf Forecasts:
13th Street surf forecast from 11 Sep 2026:
- Best quality surf: Thursday 17 Sep, 2AM (local time) - 2.5ft (0.7m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Thursday 10 Sep, 11PM (local time) - 2.5ft (0.8m), 16s period, SW swell with 295 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 2AM (local time) - 2.5ft (0.7m), 16s 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 Thursday (Sep 17) at 2AM. The primary swell is predicted to be 0.7m and 16s period with a secondary swell of 0.4m and 9s. 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 16s and forecast to arrive on Thursday (Sep 10) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 12s period and expected on Thursday (Sep 17) at 2PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 17th Sep) | 2.5ft (0.7m) 16s |
| Best Surf | 2AM (Thu 17th Sep) | 2.5ft (0.7m) 16s |
| Most Powerful | 11PM (Thu 10th Sep) | 2.5ft (0.8m) 16s |
Table - best surf conditions forecast for 13th Street over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – the outlook over the next couple of weeks is a tough one to write. We're looking at a long stretch of, well, not much to get excited about. There's a pretty big gap of days with nothing really worth paddling out for.
Let's look at the only spot on the map, 13th Street. The water is sitting at 71° which is much warmer than normal for this time of year, so that's a pleasant surprise at least. But for the surf? Not so much. From Thursday the 10th of September right through to the middle of the following week, we've got tiny, messy, onshore slop. The wind is coming out of the south quarter, creating a cross-onshore chop that's just ruining any chance of a decent line. Sizes are tiny, mainly 1 ft to 3 ft, and the wave period is all over the place, but the wind is the killer. Even with a long-period groundswell reaching 16 seconds, the conditions are just "poor surf conditions" with a weak combined swell energy sitting between 141 and 320.
The only time we see a little flicker of hope is around Friday the 18th of September and then again on the morning of Saturday the 19th. Even then, it’s marginal at best – only a score of 1 out of 10, so don’t get your hopes up. The swell is still a tiny 2 ft to 2 ft from the SSW drying to SW with a long period around 18-19 seconds. The energy picks up a bit then, reading 324 and 395, but the real issue is the light onshore wind. There won't be any clean faces, and combined with the small size, it's just not worth the effort for a proper paddle session. Honestly, for most of this run, with the significant onshore wind and poor quality, the beach setup here looks more interesting for kite surfing than paddle surfing.
The rest of the forecast is a continuation of the same story. A few marginal windows pop up on the 21st and 22nd of September, but the onshore breeze is too consistent, and the surf quality is still rated as poor. There's no standout day, no real winner. The best we can say is that if you're desperate for a splash in clean water, the temperature is nice, but the waves just aren't cooperating. For now, give it a miss.
- Rusty
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 21°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Sun afternoon, min 19°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 14 | SW 14 | W 7 | W 7 | W 7 | W 8 | SW 18 | W 10 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 18 | SSW 17 | SSW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 306 | 295 | 245 | 176 | 171 | 140 | 100 | 161 | 97 | 65 | 169 | 108 | 116 | 107 | 91 | 88 | 87 | 270 | 190 | 226 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross | cross-on | on | cross-on | cross-on | on | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross-on | on | glassy |
High Tide | 9:26PM2.21m | 10:07AM2.06m | 10:09PM2.07m | 10:34AM2.11m | 10:52PM1.89m | 11:02AM2.11m | 11:36PM1.69m | 11:30AM2.07m | 00:26AM1.50m | 12:00PM2.00m | 1:32AM1.33m | 12:34PM1.91m | 4:04AM1.24m | |||||||
Low Tide | 3:23PM0.62m | 3:52AM0.28m | 4:06PM0.54m | 4:20AM0.44m | 4:49PM0.50m | 4:46AM0.62m | 5:33PM0.51m | 5:10AM0.80m | 6:21PM0.56m | 5:30AM0.98m | 7:16PM0.64m | 5:44AM1.12m | 8:30PM0.71m | |||||||
 |  | | | | | | | | | | | | | | | | | | | |
 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — |
 | 7:06 | — | — | 7:04 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 6:59 | — | — | 6:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 25 | 25 | 25 | 23 | 23 | 24 | 22 | 22 | 23 | 22 | 22 | 22 | 21 | 22 | 22 | 20 | 21 | 21 | 20 |
Feels °C | 29 | 26 | 25 | 25 | 24 | 24 | 24 | 23 | 22 | 23 | 22 | 21 | 21 | 22 | 21 | 21 | 20 | 21 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 15 | W 6 | W 6 | SW 14 | W 7 | W 7 | W 7 | W 8 | W 7 | W 10 | W 9 | W 9 | W 8 | W 7 | SSW 18 | SSW 17 | SSW 16 |
| kJ | 306 | 295 | 245 | 176 | 35 | 32 | 100 | 113 | 97 | 65 | 169 | 67 | 116 | 74 | 74 | 50 | 21 | 270 | 190 | 226 |
Swell 2 Height (m) Direction Period (s) | W 5 | W 6 | W 6 | W 6 | SW 15 | SSW 14 | S 10 | SW 14 | SW 14 | W 10 | SW 19 | W 10 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | W 6 | W 6 | SSW 9 |
| kJ | 14 | 39 | 39 | 24 | 171 | 140 | 29 | 97 | 64 | 31 | 92 | 31 | 108 | 107 | 91 | 88 | 87 | 10 | 9 | 29 |
Swell 3 Height (m) Direction Period (s) | S 9 | S 11 | S 10 | S 10 | S 9 | S 9 | WSW 13 | S 9 | S 8 | SW 13 | SW 13 | SW 18 | SSW 12 | SSW 12 | SSW 12 | SSW 20 | SSW 15 | SSE 9 | SSE 9 | SW 13 |
| kJ | 15 | 21 | 19 | 17 | 15 | 27 | 35 | 23 | 12 | 45 | 44 | 108 | 15 | 15 | 14 | 75 | 42 | 16 | 16 | 44 |
Wind waves Height (m) Direction Period (s) | — | — | ESE 3 | — | — | — | W 6 | W 7 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 4 | — | — | — | 32 | 161 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 30 | 30 | 31 | 30 | 30 | 30 | 71 | 30 | 30 | 141 | 30 | 30 | 30 | 30 | 30 | 31 | 30 | 30 | 141 | 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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