
Surf Forecasts:
13th Street surf forecast from 14 Sep 2026:
- Best quality surf: Thursday 17 Sep, 8AM (local time) - 2.5ft (0.7m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 11AM (local time) - 2.5ft (0.7m), 18s period, SSW swell with 270 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 5AM (local time) - 2ft (0.6m), 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 5AM. The primary swell is predicted to be 0.6m and 16s period. 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 0.7m 18s and forecast to arrive on Wednesday (Sep 16) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 13s period and expected on Saturday (Sep 19) at 5AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 17th Sep) | 2ft (0.6m) 16s |
| Best Surf | 8AM (Thu 17th Sep) | 2.5ft (0.7m) 16s |
| Most Powerful | 11AM (Wed 16th Sep) | 2.5ft (0.7m) 18s |
Table - best surf conditions forecast for 13th Street over the next 16 days.
The Lowdown
Alright, let’s get into it.
The way this is shaping up, we’re looking at a pretty flat spell for a good while. There’s nothing that’s going to have you sprinting for your board for the next week and a half, to be honest. The swell is small, the winds are mostly onshore or cross-onshore, and the surf is just going to be struggling to put anything decent together. It’s a real patience test.
We’ll start things off on Sunday, September 13th at 13th Street. We’ve got some tiny, weak swell pushing in from the west-northwest, only around 2ft, with a pretty short period of 9 seconds. The wind is light offshore from the WSW, so the surface might have a bit of shine to it, but there’s just no power behind it. The combined energy is weak at 124. It’s a tough go for the advanced crew, and even then, it’s mostly closeouts and frustration. The water is a warm 71°F, which is much warmer than normal for this time of year, so you won’t need a thick suit, just a lot of patience.
The days that follow are pretty much more of the same. Small, weak swells, mostly from the southwest, but the winds turn cross-shore or cross-onshore, chopping up what little surface there is. You’ve got periods of 1ft to 3ft surf, and while the energy numbers tick up a bit into the low-to-mid hundreds, it’s all just a mess. The period stretches out to 16-18 seconds at times, which is a long-period groundswell, but with that little size, it’s just not doing anything for us here at a beach break.
This stretch continues right through the week. On Friday, September 18th, we see the energy climb a little higher, getting up to 315 and 309 in the morning and afternoon, but the surf stays at a puny 2ft. The period is a solid 19 seconds, but it’s still just not enough. We get a couple of "marginal" calls for the morning, but it’s still mostly poor.
The whole weekend follows the same pattern. Saturday, September 19th and Sunday, September 20th are full of tiny, weak surf, with the period dropping back to around 18 seconds. The energy builds a bit, even hitting 439 on Sunday afternoon, but the wave height remains stuck at 2ft. That’s the story – a lot of ocean energy, but it’s just not translating into rideable waves.
Heading into the second week, things don’t really improve. Monday, September 21st through Sunday, September 27th is more of the same. We're seeing those 2ft to 3ft swells, all from the southwest, but the winds are mostly onshore, making things messy. The periods stay in that 13 to 16 second range, but the size is just too small. There are a few moments where the energy is moderate, like 397 and 398 on Monday, but the surf itself is a letdown.
The last few days, Monday, September 28th and Tuesday, September 29th, are still poor. The swell remains tiny, around 2ft to 2ft, with a long period of 20 seconds. There’s no real push, and the winds are just not helping.
So, the bottom line is this: there are no good surf options in this 16-day window. It’s a flat, weak run at 13th Street, with nothing that stands out. The waves are too small and the winds are working against us. That said, the spot is generally fairly consistent, so this run of poor surf is a bit of an anomaly. Forecasts can change, and this kind of blank run doesn’t usually last forever. But as it stands right now, you’re better off finding something else to do.
Rusty out.
Short Range ForecastMostly dry. Warm (max 23°C on Sun afternoon, min 20°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Fri afternoon, min 18°C on Thu morning). Wind will be generally light. | |||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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) | W 9 | W 8 | SW 18 | W 10 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 12 | SSW 15 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 |
Wave Graph | ||||||||||||||||||||
79 | 266 | 108 | 116 | 107 | 91 | 88 | 87 | 270 | 190 | 226 | 198 | 46 | 167 | 184 | 184 | 131 | 255 | 252 | 255 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross | cross-on | cross | cross-on | on | cross-on | cross-on | on | on | on | cross-on | glassy | on | cross-on | on | cross-on | on | cross-on |
High Tide | 11:36PM1.69m | 11:30AM2.07m | 00:26AM1.50m | 12:00PM2.00m | 1:32AM1.33m | 12:34PM1.91m | 4:04AM1.24m | 1:20PM1.81m | 2:42PM1.74m | 8:15AM1.45m | 4:26PM1.74m | |||||||||
Low Tide | 5:33PM0.51m | 5:10AM0.80m | 6:21PM0.56m | 5:30AM0.98m | 7:16PM0.64m | 5:44AM1.12m | 8:30PM0.71m | 5:12AM1.24m | 10:11PM0.73m | 11:39PM0.66m | 10:15AM1.44m | 00:33AM0.57m | ||||||||
— | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | |
7:01 | — | — | 7:00 | — | — | 6:59 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:52 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 23 | 23 | 21 | 22 | 22 | 20 | 21 | 21 | 20 | 20 | 21 | 20 | 21 | 22 | 22 | 22 | 23 | 21 |
Feels °C | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 20 | 21 | 20 | 20 | 20 | 20 | 20 | 21 | 20 | 22 | 22 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 8 | W 8 | W 10 | W 9 | W 9 | W 9 | W 8 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | S 15 | SSW 15 | SSW 14 | SW 19 | W 6 | W 6 | SW 18 | W 6 |
79 | 266 | 72 | 116 | 56 | 56 | 55 | 20 | 270 | 190 | 226 | 198 | 113 | 167 | 118 | 184 | 59 | 48 | 252 | 80 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 19 | WNW 10 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | W 6 | SSE 9 | S 9 | SSE 9 | SSW 12 | S 11 | SW 19 | SSW 14 | SSW 13 | SW 18 | SSW 13 | SW 18 |
45 | 92 | 34 | 108 | 107 | 91 | 88 | 87 | 10 | 28 | 43 | 28 | 46 | 55 | 184 | 104 | 101 | 255 | 56 | 255 | |
Swell 3 Height (m) Direction Period (s) | S 8 | SW 13 | SW 18 | SSW 12 | SSW 12 | S 9 | SSW 20 | SSW 19 | SSE 9 | W 5 | SW 13 | SSW 12 | SSE 9 | SW 21 | W 5 | S 11 | SW 19 | S 13 | S 10 | SSW 12 |
11 | 44 | 108 | 15 | 15 | 14 | 75 | 70 | 28 | 5 | 44 | 48 | 25 | 110 | 13 | 36 | 131 | 89 | 9 | 29 | |
Wind waves Height (m) Direction Period (s) | — | — | SE 2 | SSE 3 | SE 2 | SE 3 | — | — | — | — | — | — | W 5 | W 4 | — | W 5 | W 6 | — | W 6 | — |
— | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | 5 | 2 | — | 21 | 76 | — | 48 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 141 | 30 | 30 | 30 | 30 | 30 | 31 | 30 | 30 | 141 | 17 | 141 | 93 | 0 | 141 | 71 | 10 | 27 | 71 | 30 |
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.










