Surf Forecasts:
Octagon House surf forecast from 3 Aug 2026:
- Most powerful swell: Friday 7 Aug, 10PM (local time) - 2.5ft (0.7m), 6s period, SE swell with 34 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 0.7m 6s and forecast to arrive on Friday (Aug 07) at 10PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (CDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Fri 7th Aug) | 2.5ft (0.7m) 6s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
Yeah, look, I've been staring at the charts for Octagon House (Big Island) and, honestly, it's a bit of a tough stretch. We've got a solid 16-day window, but the surf just doesn't want to cooperate for a good chunk of it. Let's break it down.
The water here is sitting at 87°, which is about a degree and a half warmer than what’s normal for this time of year. It's noticeable, but not crazy.
For the coming days, from Monday the 3rd right through to at least the 16th, it's pretty much a write-off. There's swell on the charts, but it's all small – we're talking 1ft to 3ft at best. The wind is the real killer though. It's mostly onshore or cross-onshore, chopping up anything that tries to form. The energy is weak, too, mostly in the single digits and low 20s early on, picking up a little to the 30s and 40s around the 13th and 14th, but it's still not enough to make anything of it. It's just messy and small. There's a moment on the morning of the 16th and 17th where it goes glassy, which is a tease, but the swell is still tiny, around 2ft, so it's not going to be worth the paddle.
The only real glimmer in this whole period is right at the end. On the morning of the 18th, we finally see a shift. The wind swings around to a light cross-offshore from the WNW, and the guidance says it's clean. Swell is still small at 2ft, but with that wind, the lineup is going to be much more inviting. It's not the standout of the year, but after this long flat spell, it's the best we've got. It's a promise of things to come, you know? A little taste.
Because the surf is so small and weak for most of the window, and the wind is predominantly onshore, this Octagon House stretch is looking more like a kitesurfing spot than a paddle-surfing one for the bulk of the period.
So, if you're keen, keep your eyes on that Tuesday the 18th. It's a long way out, so don't book your flights, but it's the one to watch.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Mon morning, min 28°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Thu morning. Warm (max 30°C on Thu morning, min 28°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | |||||||||||||||
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) | SE 6 | SSE 5 | S 4 | S 4 | S 5 | S 4 | S 4 | S 5 | SSE 6 | SSE 5 | SSE 5 | SSE 5 | SE 6 | SSE 5 | SE 6 | SSE 5 | SE 5 | SE 5 | SE 5 | SE 5 | SE 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 7 | 12 | 9 | 10 | 10 | 9 | 13 | 28 | 20 | 23 | 26 | 24 | 26 | 33 | 17 | 23 | 29 | 16 | 16 | 18 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | on | on | cross-on | cross-on | cross-on |
High Tide | 9:13PM0.25m | 7:46AM0.30m | 11:28PM0.28m | 7:22AM0.32m | 1:56AM0.34m | 6:38AM0.35m | 3:24AM0.39m | 4:05AM0.42m | 4:44AM0.43m | ||||||||||||
Low Tide | 2:24PM0.11m | 1:23AM0.20m | 3:12PM0.05m | 2:00AM0.27m | 4:05PM-0.02m | 2:38AM0.34m | 5:03PM-0.08m | 6:04PM-0.12m | 7:07PM-0.15m | 8:08PM-0.16m | |||||||||||
 | |  | | | | | | |  | | | | | | | |  | | | | |
 | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — |
 | — | 8:09 | — | — | 8:09 | — | — | 8:08 | — | — | 8:07 | — | — | 8:07 | — | — | 8:06 | — | — | 8:06 | — |
mm | — | — | — | — | — | — | — | — | — | 1 | — | — | 2 | — | — | — | — | 1 | 1 | — | — |
Temp °C | 31 | 31 | 29 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 29 | 30 | 29 | 28 | 29 | 29 | 29 | 30 | 30 | 29 |
Feels °C | 33 | 32 | 31 | 32 | 31 | 30 | 32 | 32 | 30 | 31 | 31 | 30 | 32 | 30 | 29 | 33 | 30 | 30 | 31 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SE 6 | SE 9 | SE 9 | S 4 | SE 8 | SE 8 | S 4 | SE 8 | SE 8 | SE 9 | S 6 | — | SSW 5 | SE 7 | SE 9 | SSE 5 | — | — | SE 5 | — | — |
| kJ | 8 | 3 | 3 | 9 | 3 | 3 | 9 | 2 | 2 | 3 | 1 | — | 8 | 12 | 3 | 17 | — | — | 16 | — | — |
Swell 2 Height (m) Direction Period (s) | SSW 4 | SSE 5 | — | SE 9 | SE 8 | — | SE 8 | SE 8 | — | SE 9 | — | — | SE 9 | — | — | SE 9 | — | — | — | — | — |
| kJ | 2 | 3 | — | 3 | 3 | — | 3 | 2 | — | 3 | — | — | 3 | — | — | 3 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 9 | — | SE 4 | — | — | SE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 3 | — | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSE 5 | S 4 | — | S 5 | S 4 | — | S 5 | SSE 6 | SSE 5 | SSE 5 | SSE 5 | SE 6 | SSE 5 | SE 6 | — | SE 5 | SE 5 | — | SE 5 | SE 5 |
| kJ | — | 7 | 12 | — | 10 | 10 | — | 13 | 28 | 20 | 23 | 26 | 24 | 26 | 33 | — | 23 | 29 | — | 16 | 18 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1296 | 1346 | 1291 | 1296 | 1331 | 1291 | 1324 | 1331 | 1291 | 1296 | 1331 | 1291 | 1296 | 1410 | 1291 | 1296 | 1331 | 1291 | 1296 | 1331 | 1291 |
Best forecast wave conditions in Texas | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Octagon House surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest