Surf Forecasts:
Octagon House surf forecast from 21 Aug 2026:
- Most powerful swell: Thursday 27 Aug, 4AM (local time) - 3ft (0.9m), 5s period, S swell with 36 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 0.9m 5s and forecast to arrive on Thursday (Aug 27) at 4AM. 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 | 4AM (Thu 27th Aug) | 3ft (0.9m) 5s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – this stretch is a tough one for the Octagon House area. We’re looking at a solid 16-day window with no real surf to get excited about, so let’s break down exactly what’s going on.
The main problem is we’re stuck in a pattern of tiny, weak swell. The combined wave energy for the whole run hovers in the teens and twenties (15 to 35), which is basically nothing. On top of that, the swell direction is a constant south to south-southeast, and the optimum for this spot is southeast, so it’s never really lining up right. The period is also super short – just 4 to 6 seconds – meaning no power or shape to the waves.
For the first few days, from Thursday the 20th through the weekend, it’s tiny 1ft to 2ft dribble. The wind is mostly a cross-onshore breeze, chopping it up even more. A few mornings, like Friday the 21st and Saturday the 22nd, we get a light cross-offshore breeze that cleans the surface, but with that swell, it’s just a flat, pretty ocean. Not rideable.
We roll through the entire next week, from Monday the 24th all the way to Sunday the 31st of August, and it’s the same sad story. Swell barely cracks 2ft, the wind stays onshore or cross-onshore most of the time, and every single surf report is telling the same story: poor surf conditions.
Moving into the second week, it does get slightly bigger – we see 2ft to 3ft by Monday the 31st and into the first days of September. But that’s still tiny, weak, and the wind remains a moderate cross-onshore. By Thursday the 3rd of September we’re still looking at the same 2ft to 2ft slop. The last day in the forecast, Friday the 4th of September, offers the best of a bad bunch with 3ft swell from the SSE, but it’s onshore and still under 35 wave energy.
Bottom line: there are no standouts here. Not a single day offers anything worth paddling out for. Sometimes the ocean just goes to sleep, and this is one of those times. Keep the board in the car for a morning coffee check, but don’t get your hopes up. The water temp is around 87°F, which is a touch warmer than normal for this time of year, so at least a swim is nice.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Thu afternoon, min 27°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Sun afternoon, min 27°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | S 4 | S 4 | S 4 | S 4 | S 4 | SSW 4 | S 4 | S 4 | SSW 4 | S 4 | S 4 | SSW 4 | S 3 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | SSE 4 |
Wave Graph  | ||||||||||||||||||||
 kJ | 8 | 9 | 9 | 10 | 12 | 12 | 9 | 17 | 6 | 5 | 7 | 4 | 4 | 9 | 7 | 5 | 14 | 13 | 9 | 31 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross-on | cross | cross-off | cross-on | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | cross-on | cross-on |
High Tide | 4:01AM0.41m | 4:44AM0.41m | 5:18AM0.41m | 5:36AM0.40m | 5:38AM0.39m | 5:40AM0.38m | 1:45PM0.37m | |||||||||||||
Low Tide | 5:29PM-0.00m | 6:25PM-0.01m | 7:17PM-0.01m | 8:05PM-0.02m | 8:45PM-0.01m | 10:07AM0.37m | 9:21PM-0.00m | 9:50AM0.35m | 9:53PM0.02m | |||||||||||
 |  | | | | | | | | | | | | | | | | | | | |
 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 31 | 29 | 31 | 31 | 28 | 31 | 30 | 28 | 30 | 30 | 28 | 29 | 29 | 28 | 30 | 29 | 28 | 30 | 30 | 28 |
Feels °C | 32 | 32 | 34 | 32 | 30 | 33 | 31 | 29 | 32 | 31 | 30 | 31 | 30 | 30 | 32 | 30 | 29 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | ESE 5 | SE 5 | S 4 | SE 5 | SE 5 | S 4 | SE 7 | SE 7 | SSW 4 | SE 7 | SE 8 | SE 9 | SE 9 | SE 8 | S 4 | SE 8 | SE 8 | SE 8 | SE 8 | — |
| kJ | 3 | 1 | 9 | 1 | 1 | 9 | 2 | 2 | 6 | 2 | 2 | 3 | 3 | 3 | 7 | 3 | 3 | 3 | 2 | — |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 5 | SE 7 | S 8 | SE 6 | SE 7 | S 6 | SE 7 | SE 5 | — | S 6 | — | SE 10 | SE 9 | — | — | — | — | — |
| kJ | 3 | 2 | 1 | 2 | 1 | 1 | 2 | 1 | 2 | 1 | — | 1 | — | 4 | 3 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | E 6 | — | SE 7 | — | — | S 8 | — | — | SE 7 | — | S 6 | SE 9 | — | — | SE 9 | — | — | — | — | — |
| kJ | 1 | — | 2 | — | — | 1 | — | — | 2 | — | 1 | 3 | — | — | 3 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | — | S 4 | S 4 | SSW 4 | S 4 | S 4 | — | S 4 | S 4 | SSW 4 | S 3 | S 4 | — | S 4 | S 4 | S 4 | S 4 | SSE 4 |
| kJ | 8 | 9 | — | 10 | 12 | 12 | 9 | 17 | — | 5 | 7 | 4 | 4 | 9 | — | 5 | 14 | 13 | 9 | 31 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1395 | 1291 | 1296 | 1330 | 1291 | 1324 | 1397 | 1291 | 1296 | 1335 | 1291 | 1296 | 1346 | 1291 | 1291 | 1335 | 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.
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