Surf Forecasts:
Octagon House surf forecast from 18 Aug 2026:
- Most powerful swell: Tuesday 25 Aug, 1AM (local time) - 3.5ft (1.0m), 4s period, S swell with 40 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 1.0m 4s and forecast to arrive on Tuesday (Aug 25) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Saturday (Aug 22) at 10AM.
| Wave Type | Time (CDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Tue 25th Aug) | 3.5ft (1.0m) 4s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
G’day, it’s Rusty here.
Well, I’ll be straight with you – the next couple of weeks look pretty flat and messy for Octagon House. We’ve got a run of small surf on the cards, and honestly, there’s nothing here that’s gonna get your heart racing. The first day, Monday the 17th, is a non-starter: a tiny 1ft SE windswell with a short 5-second period and a moderate onshore breeze. The combined energy is a weak 16, and the water’s sitting at 87°, which is a touch warmer than usual for this time of year.
The rest of the week doesn’t offer much hope either. Tuesday through Sunday we’re looking at ankle-biters in the 0.7ft to 3ft range, mostly coming from the south with periods of 4 to 9 seconds. Winds are all over the place, but mostly cross or cross-on, which just chops up what little surface there is. The mornings might have a cleaner look to them, especially Saturday the 22nd, with a light cross-off breeze, but the swell is still piddly at 2ft.
We’re looking at a real gap here. There’s nothing worth paddling out for until we get to the following week. The swell starts to pick up a touch around Tuesday the 25th and Wednesday the 26th, with heights reaching 3ft to 3ft, still from the south with a short period. But the winds are mostly cross-on, so it’ll be lumpy. Even the clean mornings, like Wednesday the 26th with that WSW cross-off, won’t save it – it’s just too small and weak, with the combined energy only barely cracking 38. The direction is also from the SSW, which is cross to what this break prefers – it really wants SE swell.
The end of the window, right around the 31st of August and into the 1st of September, sees a slight bump again to 3ft, but the period is still short and the winds are straight onshore. That’s a messy close to a forgettable forecast.
Honestly, for the next 16 days, you’re better off finding something else to do. If you’re dead keen, keep an eye on those cleaner morning windows, but don’t expect much. This break just looks more interesting for a kite than a paddle board right now.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Mon afternoon, min 28°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 31°C on Fri morning, min 27°C on Fri 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) | SE 5 | S 4 | SSE 8 | SE 9 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 5 | S 5 | S 4 | S 5 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 |
Wave Graph  | ||||||||||||||||||||
 kJ | 10 | 6 | 6 | 13 | 10 | 13 | 14 | 22 | 14 | 13 | 22 | 17 | 22 | 25 | 10 | 22 | 15 | 12 | 17 | 24 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross-off | cross-on | cross | cross-off | cross-on | cross |
High Tide | 10:35PM0.33m | 7:24AM0.33m | 1:12AM0.36m | 3:11AM0.39m | 4:01AM0.41m | 4:44AM0.41m | 5:18AM0.41m | |||||||||||||
Low Tide | 2:42AM0.30m | 3:39PM0.03m | 4:33PM0.01m | 5:29PM-0.00m | 6:25PM-0.01m | 7:17PM-0.01m | 8:05PM-0.02m | |||||||||||||
 |  |  | | | | | | | | | | | | | | | | | | |
 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | 7:58 | — | — | 7:57 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 30 | 28 | 30 | 30 | 29 | 30 | 30 | 28 | 30 | 30 | 29 | 31 | 30 | 28 | 31 | 30 | 28 | 31 | 31 | 28 |
Feels °C | 32 | 30 | 32 | 31 | 31 | 31 | 30 | 30 | 32 | 31 | 31 | 34 | 31 | 30 | 33 | 30 | 29 | 32 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 5 | SE 5 | SE 9 | SE 6 | SE 7 | SE 7 | S 10 | SE 5 | ESE 5 | SE 7 | S 5 | SE 8 | S 6 | S 5 | S 8 | SE 6 | SSW 4 | SE 8 | — |
| kJ | 3 | 4 | 4 | 13 | 2 | 9 | 7 | 2 | 4 | 2 | 2 | 17 | 2 | 1 | 10 | 1 | 2 | 12 | 2 | — |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | SSE 8 | ESE 5 | SE 9 | — | — | SE 10 | SE 9 | SE 8 | SE 8 | SE 8 | — | S 8 | SE 6 | SE 8 | SE 7 | SSE 6 | SE 8 | SE 8 |
| kJ | 3 | 3 | 6 | 2 | 3 | — | — | 4 | 3 | 3 | 2 | 2 | — | 1 | 1 | 2 | 2 | 3 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | SE 10 | S 6 | — | — | — | S 10 | — | SE 6 | — | — | — | — | — | S 8 | — | — | — | — |
| kJ | — | — | 4 | 1 | — | — | — | 2 | — | 2 | — | — | — | — | — | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 5 | S 4 | SSW 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | — | S 5 | S 4 | SW 4 | SSW 4 | SSW 4 | — | SSW 4 | SSW 4 |
| kJ | 10 | 6 | 5 | 4 | 10 | 13 | 14 | 22 | 14 | 13 | 22 | — | 22 | 25 | 5 | 22 | 15 | — | 17 | 24 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1303 | 1291 | 1296 | 1331 | 1291 | 1296 | 1456 | 1291 | 1296 | 1456 | 1291 | 1296 | 1331 | 1296 | 1291 | 1324 | 1291 | 1296 | 833 | 723 |
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.
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