Surf Forecasts:
Octagon House surf forecast from 15 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 7PM (local time) - 4ft (1.2m), 6s period, ESE swell with 87 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 1.2m 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) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for Octagon House.
To be straight with you, this outlook is a tough one. We’re staring down a pretty bleak 16-day window with nothing I’d call a decent surf option. The opening days are a write-off right from Tuesday the 15th, with tiny, weak swell and a persistent cross-onshore breeze messing things up. That pattern just keeps repeating, day after day. We’re talking about an energy reading in the 20s (23) on the first morning, which is very weak.
We do get a brief, interesting moment on Sunday the 20th. The morning looks clean with glassy conditions and light easterly winds, which is a massive positive. But the swell is still tiny at 2ft from the SSE, and the period is a short 5 seconds. The combined wave energy is still weak (23), so while it’ll be the cleanest the place looks, it’s barely a ripple. It’s not a standout for surf, just a moment that’s less bad than the rest.
After that, it’s back to small, onshore junky conditions. There’s one brief clean window on Monday the 21st in the morning with a cross-offshore wind, but again, the swell is near flat at 1ft with almost no energy (9). For the rest of the forecast, we’re looking at long stretches—days and days—of tiny waves and poor conditions. The swell energy never climbs above 91 (on September 28th), which is still weak, and the winds remain persistently onshore or cross-shore. By the time we hit the end of September, winds look to pick up, but it's still messy and small.
For this area, a run this blank isn’t unheard of. The best I can say is keep the board in the car for the off chance that glassy morning on the 20th delivers a fun little ankle-snatcher.
Stay patient.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Thu morning. Warm (max 31°C on Tue morning, min 29°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Fri morning, min 28°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | SSE 5 | SSE 5 | SSE 5 | SE 5 | ESE 4 | ESE 5 | ESE 6 | ESE 5 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | SE 6 | ESE 6 | ESE 6 | SE 5 | ESE 6 | ESE 5 | ESE 5 | ESE 5 | ESE 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 17 | 13 | 13 | 10 | 9 | 27 | 58 | 66 | 72 | 66 | 80 | 56 | 40 | 48 | 47 | 20 | 20 | 16 | 9 | 12 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | 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 | cross-on | 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 | 1:37PM0.07m | 2:24PM0.07m | 3:19PM0.08m | 4:24PM0.08m | 5:33PM0.09m | 6:37PM0.09m | 7:30PM0.09m | ||||||||||||||
 | |  |  | |  | | | | | | | | | | | | |  | | | |
 | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — |
 | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:17 | — |
mm | — | — | — | 1 | 1 | 4 | 12 | 5 | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Temp °C | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
Feels °C | 35 | 33 | 33 | 31 | 31 | 31 | 31 | 29 | 30 | 28 | 28 | 30 | 30 | 29 | 30 | 32 | 30 | 31 | 32 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | SSE 5 | SE 8 | SE 8 | SE 5 | SE 8 | — | — | — | — | — | — | — | SE 6 | — | — | SE 5 | ESE 6 | SE 7 | ESE 5 | SE 8 | ESE 4 |
| kJ | 17 | 3 | 3 | 10 | 2 | — | — | — | — | — | — | — | 40 | — | — | 20 | 20 | 2 | 9 | 2 | 8 |
Swell 2 Height (m) Direction Period (s) | SE 9 | S 11 | SE 8 | SE 8 | SE 6 | — | — | — | — | — | — | — | — | — | — | SE 8 | SE 7 | — | SE 7 | — | — |
| kJ | 3 | 2 | 3 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | 2 | 2 | — | 2 | — | — |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 8 | — | SSW 4 | SE 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSE 5 | SSE 5 | — | ESE 4 | ESE 5 | ESE 6 | ESE 5 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | — | ESE 6 | ESE 6 | — | — | ESE 5 | — | ESE 5 | — |
| kJ | — | 13 | 13 | — | 9 | 27 | 58 | 66 | 72 | 66 | 80 | 56 | — | 48 | 47 | — | — | 16 | — | 12 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1291 | 1395 | 1291 | 1296 | 1395 | 1291 | 1296 | 1395 | 1291 | 1296 | 1397 | 1291 | 1296 | 1393 | 1291 | 1296 | 1308 | 1291 | 1296 | 1310 | 1291 |
Best forecast wave conditions in Texas | |||||||||||||||||||||
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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.
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