
Surf Forecasts:
Octagon House surf forecast from 16 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 7PM (local time) - 4.5ft (1.3m), 6s period, ESE swell with 95 kJ wave energy.
Best Forecast Surf Conditions for Octagon House this week:
The most powerful waves expected at Octagon House in the next 16 days are 1.3m 6s and forecast to arrive on Thursday (Sep 17) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (CDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Thu 17th Sep) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
Alright, let’s be straight with you. The next couple of weeks are looking pretty grim for a proper surf. We’ve got a long stretch of small, junky, onshore slop that’s going to test your patience more than your skill. The good news? There’s a tiny glimmer of something better way out at the end of the forecast, but it’s a promise, not a guarantee.
We’re looking at a serious dry spell here. From now, right through the rest of September, there’s just nothing that’s going to get the heart rate up. We’re talking ankle to waist-high dribble, with a persistent easterly wind messing up any chance of a clean face. The water’s sitting at a very warm 87.1° at Octagon House, which is about 3.6° warmer than usual for this time of year—you won’t need a wetsuit, that’s for sure. But you will need a longboard and low expectations.
The first few days are a write-off. It’s all cross-onshore breezes, choppy crumble, and energy readings buried in the weak zone (around 12 to 73). Periods are short and unimpressive, mostly 3 to 6 seconds. There’s a moment on the morning of Monday the 21st where it goes glassy, but the swell is barely a ripple at 0.4ft with a period of 5 seconds. It’s pretty, but it’s not surfable.
This flat, weak pattern just keeps grinding on. Some days the wind eases, but the swell stays tiny, and when a little bump tries to show up, the wind chops it to bits. The energy readings stay mostly weak, only occasionally flirting with the low end of moderate, like on the afternoon of Sunday the 27th when it hits 121.
Here’s the one thing worth circling on the calendar. The morning of Tuesday the 30th of September. Finally, we get a shift. The wind swings around to the north, giving us a clean, cross-off breeze at Octagon House. The swell direction is still off, but the period bumps up to a more respectable 7 seconds. The size is only 1.3ft, which is pathetic, but the conditions will be clean and glassy. It’s the only time in the whole 16 days that the ocean will look like it belongs to us and not the wind.
That’s it. One morning. For a guy who likes to find a diamond in the rough, this is more like a piece of broken glass. The crowd factor is a non-issue because nobody in their right mind will be out there. It’s a poor outlook, plain and simple. We’ll just have to wait for the ocean to wake up.
Short Range ForecastHeavy rain (total 32mm), heaviest during Thu afternoon. Warm (max 31°C on Tue afternoon, min 29°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Sat morning, min 28°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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) | SSE 5 | SSE 5 | SSE 4 | ESE 3 | ESE 5 | ESE 5 | ESE 5 | ESE 6 | ESE 6 | ESE 5 | ESE 6 | SE 6 | ESE 6 | SE 5 | ESE 5 | ESE 6 | SE 5 | SE 5 | E 4 | ESE 4 |
Wave Graph | ||||||||||||||||||||
13 | 15 | 8 | 9 | 33 | 51 | 73 | 82 | 66 | 60 | 46 | 39 | 34 | 23 | 17 | 20 | 13 | 6 | 9 | 3 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | glassy | cross-on | on |
High Tide | 10:21PM0.44m | 00:22AM0.45m | 2:57AM0.46m | 3:47AM0.46m | 4:19AM0.46m | 4:25AM0.45m | ||||||||||||||
Low Tide | 2:24PM0.07m | 3:19PM0.08m | 4:24PM0.08m | 5:33PM0.09m | 6:37PM0.09m | 7:30PM0.09m | ||||||||||||||
— | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | |
7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — | |
mm | 1 | 1 | 1 | — | 5 | 10 | 13 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 31 | 30 | 30 | 30 | 30 | 29 | 29 | 30 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 29 |
Feels °C | 34 | 33 | 33 | 32 | 32 | 31 | 30 | 31 | 28 | 28 | 30 | 31 | 29 | 30 | 31 | 30 | 31 | 32 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SSE 4 | SE 8 | — | SE 9 | — | — | — | — | ESE 6 | SE 6 | — | — | ESE 5 | ESE 6 | — | SE 5 | SE 8 | — |
3 | 3 | 8 | 2 | — | 3 | — | — | — | — | 46 | 39 | — | — | 17 | 20 | — | 6 | 2 | — | |
Swell 2 Height (m) Direction Period (s) | S 11 | SE 8 | SE 8 | SE 5 | — | — | — | — | — | — | — | — | — | — | SE 8 | — | — | SE 8 | — | SE 8 |
2 | 3 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 2 | — | 2 | |
Swell 3 Height (m) Direction Period (s) | SSW 4 | — | SE 8 | SE 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | S 9 | — | — |
2 | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | |
Wind waves Height (m) Direction Period (s) | SSE 5 | SSE 5 | — | ESE 3 | ESE 5 | ESE 5 | ESE 5 | ESE 6 | ESE 6 | ESE 5 | — | — | ESE 6 | SE 5 | — | — | SE 5 | — | E 4 | ESE 4 |
13 | 15 | — | 9 | 33 | 51 | 73 | 82 | 66 | 60 | — | — | 34 | 23 | — | — | 13 | — | 9 | 3 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1395 | 1291 | 1291 | 1395 | 1291 | 1296 | 1395 | 1291 | 1296 | 1410 | 1291 | 345 | 1346 | 1291 | 236 | 1331 | 1291 | 1296 | 1331 | 1291 |
Best forecast wave conditions in Texas | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Octagon House Surf forecast
The above surf forecast table for Octagon House provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Octagon House can be found by selecting the local surf guide option on the grey menu. Our Octagon House 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 (Octagon House) 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 Octagon House 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.
Are you planning a vacation in Texas? If you are looking for accommodation near Octagon House, camping, hotels and condos and appartments in Texas, consider staying in Angleton which is 33 km (20 miles) away. Other places in and around Texas where you can find information about places to rent, and car hire include La Marque which is 33 km (20 miles) away, Lake Jackson, Texas City and Galveston.










