Surf Forecasts:
Octagon House surf forecast from 18 Aug 2026:
- Most powerful swell: Monday 24 Aug, 4AM (local time) - 3ft (0.9m), 5s period, SSW swell with 37 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 Monday (Aug 24) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Saturday (Aug 22) at 7AM.
| Wave Type | Time (CDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Mon 24th Aug) | 3ft (0.9m) 5s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
Alright crew, Rusty here. Let’s get into it. I’ll level with you straight up: the next 16 days are looking pretty bleak for Octagon House. We’re stuck in a flat spell with hardly any swell to speak of, so don’t be in a rush to grab your board.
Right now, the first real chance to even think about a paddle doesn’t come until the morning of Wednesday, 26th August. Even then, it’s small. We’re looking at a weak 3ft swell from the SSW, but the energy is tiny – just 53 units of combined swell energy (53). The wind is clean and cross-offshore from the WSW, which is a positive, but the waves are just knee-high at best. It’s not a day to get excited about, more of a gentle session for the beginners.
The morning of Thursday, 27th August, is a similar story. The swell drops to 2ft from the S, with a measly 16 units of energy. The wind is light and cross-off from the WSW again, keeping it clean, but again, it’s tiny. After that, it’s back to a long stretch of nothing until the very end of the run.
The standout, if you can call it that, is the morning of Saturday, 29th August. The swell is a pathetic 0.3ft from the SE, with a period of 8 seconds, and the combined energy is a paltry 8 (8). But the wind is glassy – totally off from the NW. It’s flat as a pancake, but if you’re desperate for a longboard in mirror-flat conditions, it’s the cleanest water you’ll see all fortnight. Realistically, it’s not surfable.
The rest of the window is a write-off: constant onshore and cross-onshore winds, tiny chop, and no energy. Sunday 30th August, Monday 31st, right through to Wednesday 2nd September, it’s all poor surf conditions with nothing to ride. The combined swell energy never gets above 12 units after the 26th, and the waves are consistently under 2ft with lousy, short-period windswell.
So, honestly, there’s no good surf on offer here. It’s a flat spell for Octagon House. If you’re a kite surfer, some of those afternoons with a solid 15-18 mph cross-onshore wind might be more interesting than trying to paddle. But for the rest of us, it’s a waiting game. Forecasts can change, but right now, this is a blank run.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Tue morning, min 27°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 31°C on Fri morning, min 27°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 8 | SE 9 | S 4 | SE 7 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 5 | S 4 | S 4 | S 4 | S 4 | SSW 4 | S 4 | SSW 4 | SW 5 | S 5 | SSW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 13 | 6 | 9 | 13 | 22 | 15 | 13 | 15 | 15 | 15 | 23 | 10 | 14 | 12 | 7 | 12 | 31 | 23 | 15 | 24 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | cross-off | cross-on | cross-on | cross | cross-on | cross |
High Tide | 7:24AM0.33m | 1:12AM0.36m | 3:11AM0.39m | 4:01AM0.41m | 4:44AM0.41m | 5:18AM0.41m | 5:36AM0.40m | ||||||||||||||
Low Tide | 3:39PM0.03m | 4:33PM0.01m | 5:29PM-0.00m | 6:25PM-0.01m | 7:17PM-0.01m | 8:05PM-0.02m | 8:45PM-0.01m | ||||||||||||||
 |  |  | | | | | | | | | | | | | | |  | | | | |
 | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 7:57 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:51 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 29 | 31 | 30 | 28 | 31 | 30 | 28 | 31 | 31 | 28 | 31 | 30 | 28 |
Feels °C | 32 | 31 | 30 | 31 | 31 | 28 | 32 | 31 | 31 | 33 | 30 | 30 | 33 | 30 | 30 | 33 | 31 | 30 | 32 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | S 4 | ESE 5 | SE 6 | SE 7 | SE 7 | SE 10 | SE 5 | ESE 5 | SE 6 | S 4 | SE 8 | SE 7 | S 4 | SE 7 | SSE 6 | SSE 5 | SE 8 | — | S 5 | SE 5 | SE 9 |
| kJ | 2 | 2 | 2 | 9 | 7 | 4 | 4 | 3 | 2 | 15 | 2 | 2 | 10 | 2 | 4 | 6 | 2 | — | 16 | 1 | 3 |
Swell 2 Height (m) Direction Period (s) | SE 5 | SE 9 | SE 9 | — | — | — | SE 9 | SE 8 | SE 8 | SE 8 | SE 5 | — | SSE 5 | SE 7 | SE 7 | — | — | SE 8 | SE 8 | SE 7 | — |
| kJ | 4 | 13 | 3 | — | — | — | 3 | 3 | 2 | 2 | 1 | — | 3 | 2 | 2 | — | — | 2 | 3 | 2 | — |
Swell 3 Height (m) Direction Period (s) | SSE 8 | — | — | — | — | S 10 | — | SE 6 | — | SE 8 | — | — | — | S 8 | — | — | S 6 | — | — | S 9 | — |
| kJ | 6 | — | — | — | — | 2 | — | 2 | — | 2 | — | — | — | 1 | — | — | 1 | — | — | 2 | — |
Wind waves Height (m) Direction Period (s) | — | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | SW 4 | S 5 | S 4 | — | S 4 | S 4 | SSW 4 | S 4 | SSW 4 | SW 5 | S 5 | SSW 4 |
| kJ | — | 4 | 6 | 9 | 13 | 22 | 15 | 13 | 15 | 9 | 15 | 23 | — | 14 | 12 | 7 | 12 | 31 | 23 | 15 | 24 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1296 | 1330 | 1291 | 1296 | 1456 | 1291 | 1296 | 1395 | 1291 | 1296 | 1456 | 1291 | 1324 | 1331 | 1291 | 786 | 1397 | 1291 | 1296 | 1331 | 1291 |
Best forecast wave conditions in Texas | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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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