Surf Forecasts:
Octagon House surf forecast from 23 Aug 2026:
- Most powerful swell: Friday 28 Aug, 4AM (local time) - 3.5ft (1.0m), 5s period, S swell with 43 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 5s and forecast to arrive on Friday (Aug 28) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (CDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Fri 28th Aug) | 3.5ft (1.0m) 5s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s be straight with you: the next couple of weeks are looking pretty flat and frustrating for surf. We’ve got a long stretch of tiny, weak waves and mostly cross-shore or onshore winds that’ll leave the surface chopped up. If you’re keen for a paddle, you’ll be doing it for the exercise, not the rides.
The only spot with any sort of pulse is Octagon House (Octagon). It’s a fairly consistent break, but it’s exposed and needs a decent swell to get going. For the first week, we’re looking at nothing but ankle-biters – swell heights hovering around 1ft to 3ft from the south-southwest, with periods of just 4 to 5 seconds. That’s pure windswell, no push, no shape. Add in the moderate cross-onshore breezes in the afternoons, and it’s going to be a messy, bumpy mess.
The mornings will be your best bet, just because the winds are lighter, but even then, we’re talking about marginal, knee-high slop. The water temp is 87°, which is a touch warmer than normal for this time of year, so you won’t need a wetsuit, but you might need a board you don’t mind dinging.
This flat spell runs right through the first week and into the start of the second. We’re looking at day after day of poor surf conditions with combined swell energy stuck in the weak range (values like 8, 9, 16 – nothing over 30). It’s a proper drought.
Now, there is a light at the end of the tunnel, but it’s a long way off. Around Sunday the 6th of September, things finally start to change. A swell arrives from the south, pushing the surf up to 5ft, and the period stretches out to 6-7 seconds. The combined energy jumps right up into the moderate range (233 and 225). That’s a real increase in power. But, and it’s a big but, the wind is still going to be cross-onshore from the south at around 12 mph, which will chop it up. It will be more powerful, but messy.
So, for this stretch, this is the only real highlight. It’s still not perfect, but it’s the biggest and most energetic swell on the board. Given the long flat run beforehand, it’s worth keeping an eye on, but don’t get your hopes up for a clean, glassy day. It looks like it’ll be more of a battle than a blessing.
Right, I’ll keep watching the charts. It tends not to stay poor for long around here, and a forecast can change in a heartbeat.
Catch you in the water.
Rusty
Short Range ForecastMostly dry. Warm (max 31°C on Sat morning, min 28°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 30°C on Tue morning, min 28°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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) | SSW 4 | S 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 5 | S 5 | S 4 | S 5 | S 5 | S 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 5 | 11 | 5 | 5 | 7 | 5 | 5 | 14 | 13 | 9 | 23 | 13 | 14 | 30 | 28 | 27 | 40 | 23 | 16 | 15 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | on | cross-on |
High Tide | 5:18AM0.41m | 5:36AM0.40m | 5:38AM0.39m | 5:40AM0.38m | 1:45PM0.37m | 5:47AM0.38m | 2:53PM0.37m | 5:56AM0.37m | 4:02PM0.36m | ||||||||||||
Low Tide | 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 | 10:15AM0.32m | 10:24PM0.05m | 10:49AM0.28m | 10:55PM0.09m | ||||||||||
 | |  |  | |  | | | | | | | | | | | |  |  | | | |
 | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 7:52 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — |
Temp °C | 31 | 31 | 29 | 31 | 31 | 28 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 29 | 31 | 30 | 29 |
Feels °C | 34 | 32 | 31 | 33 | 32 | 30 | 32 | 31 | 29 | 32 | 32 | 28 | 31 | 31 | 29 | 31 | 31 | 30 | 34 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 4 | SE 5 | SE 7 | SSW 4 | SE 8 | SE 8 | SE 9 | SE 9 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | — | S 8 | — | S 5 | SE 8 | SE 5 |
| kJ | 6 | 1 | 2 | 5 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | — | 1 | — | 23 | 2 | 1 |
Swell 2 Height (m) Direction Period (s) | SE 5 | SE 7 | S 6 | SE 7 | — | — | S 9 | SE 9 | — | — | — | — | SE 8 | — | — | — | — | — | SE 8 | SE 8 | SE 8 |
| kJ | 1 | 2 | 1 | 2 | — | — | 2 | 3 | — | — | — | — | 2 | — | — | — | — | — | 3 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | SE 8 | S 5 | — | SE 7 | — | — | — | — | — | — | — | — | S 6 | — | — | — | — | — | SE 8 | E 5 | SE 7 |
| kJ | 2 | 1 | — | 2 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 3 | 1 | 2 |
Wind waves Height (m) Direction Period (s) | SSW 4 | S 4 | SSW 4 | — | SSW 4 | SSW 4 | SSW 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 5 | S 5 | S 4 | — | S 5 | S 4 |
| kJ | 7 | 5 | 11 | — | 5 | 7 | 5 | 5 | 14 | 13 | 9 | 23 | 13 | 14 | 30 | 28 | 27 | 40 | — | 16 | 15 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1296 | 1324 | 1291 | 1296 | 1362 | 1291 | 1296 | 1331 | 1291 | 1306 | 1331 | 1291 | 1296 | 1331 | 1291 | 41 | 1331 | 1291 | 1296 | 1330 | 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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