Surf Forecasts:
Octagon House surf forecast from 12 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 4PM (local time) - 4.5ft (1.3m), 6s period, ESE swell with 136 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 1.3m 6s and forecast to arrive on Thursday (Sep 17) at 4PM. 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 | 4PM (Thu 17th Sep) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s kick the tires on what’s shaping up around Octagon House.
To be straight with you, the first couple of weeks are a bust. From Saturday the 12th all the way through Saturday the 26th of September, it’s poor. The swell is tiny and weak – mostly 2ft to 3ft – with short, choppy periods and a lot of cross-onshore wind. Energy numbers are barely a whisper, staying under 100 most days. You’d be fighting a losing battle. The water is sitting at 87°F, which is about 4°F warmer than normal for this time of year, so at least it’s warm while you’re getting skunked. There’s a couple glassy mornings on the 18th and 19th, but with only 2ft to 3ft on offer, it’s hardly worth wetting a suit.
The only real glimmer is deep in the forecast. On Sunday the 27th of September, we finally get a pulse. The swell jumps to 4ft from the east with a period of 8 seconds, and the combined energy hits 342 – that’s real wave energy we haven’t seen anywhere else. The wind is light cross-onshore in the morning, so the surface should be workable. Octagon House is exposed to the SE, so this east swell has a shot at producing some rideable lines. This is the best bet in the whole 16-day window. It’s over a week away, so don’t book the trip yet, but keep an eye on it.
Everything else? Leave the board in the car.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun morning. Warm (max 31°C on Sat morning, min 29°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Tue morning, min 28°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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) | S 5 | S 6 | S 6 | S 5 | S 5 | S 5 | S 5 | SSE 5 | SSE 6 | SSE 5 | SSE 5 | SSE 6 | SE 6 | ESE 4 | ESE 5 | ESE 6 | ESE 6 | ESE 7 | ESE 6 | ESE 6 | ESE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 27 | 30 | 31 | 18 | 13 | 19 | 20 | 15 | 33 | 14 | 15 | 26 | 11 | 16 | 46 | 96 | 136 | 76 | 47 | 57 | 24 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | on | on | on | cross-on | cross-on | on | cross-on | cross-on | on | glassy | on | cross-off |
High Tide | 6:13PM0.42m | 5:41AM0.38m | 7:30PM0.42m | 5:44AM0.38m | 8:51PM0.43m | 5:31AM0.39m | 10:21PM0.44m | 00:22AM0.45m | 2:57AM0.46m | 3:47AM0.46m | |||||||||||
Low Tide | 11:35AM0.18m | 00:08AM0.25m | 12:15PM0.13m | 00:52AM0.32m | 12:55PM0.09m | 1:41AM0.37m | 1:37PM0.07m | 2:24PM0.07m | 3:19PM0.08m | 4:24PM0.08m | |||||||||||
 | |  |  |  | | | | | |  |  | | | | | | | | |  | |
 | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — |
 | — | 7:29 | — | — | 7:28 | — | — | 7:27 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — |
mm | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 31 | 31 | 30 | 31 | 30 | 29 | 30 | 30 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 30 | 29 |
Feels °C | 34 | 32 | 33 | 34 | 32 | 32 | 33 | 33 | 32 | 33 | 32 | 32 | 31 | 30 | 31 | 29 | 28 | 30 | 31 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 10 | SE 9 | SE 9 | SE 8 | SE 8 | SSE 5 | S 10 | SSE 5 | SSE 8 | — | SE 6 | S 5 | — | — | — | — | ESE 6 | ESE 6 | ESE 6 |
| kJ | 2 | 2 | 4 | 3 | 3 | 3 | 3 | 15 | 2 | 14 | 6 | — | 11 | 2 | — | — | — | — | 47 | 57 | 24 |
Swell 2 Height (m) Direction Period (s) | SE 10 | S 11 | SE 10 | — | SE 9 | — | SSW 5 | SE 8 | — | SE 9 | S 11 | — | SE 8 | S 6 | — | — | — | — | — | — | S 10 |
| kJ | 4 | 2 | 4 | — | 3 | — | 5 | 3 | — | 3 | 2 | — | 2 | 1 | — | — | — | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SE 8 | — | — | — | S 11 | — | S 5 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 2 | — | — | — | 2 | — | 2 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 5 | S 6 | S 6 | S 5 | S 5 | S 5 | S 5 | — | SSE 6 | — | SSE 5 | SSE 6 | — | ESE 4 | ESE 5 | ESE 6 | ESE 6 | ESE 7 | — | — | — |
| kJ | 27 | 30 | 31 | 18 | 13 | 19 | 20 | — | 33 | — | 15 | 26 | — | 16 | 46 | 96 | 136 | 76 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1296 | 1330 | 1291 | 1296 | 1331 | 1291 | 1296 | 1312 | 1291 | 1295 | 1397 | 1291 | 1296 | 1395 | 723 | 263 | 1557 | 613 | 1296 | 1342 | 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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