Surf Forecasts:
Octagon House surf forecast from 11 Sep 2026:
- Most powerful swell: Saturday 12 Sep, 4AM (local time) - 3.5ft (1.0m), 5s period, S swell with 47 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 Saturday (Sep 12) 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 (Sat 12th Sep) | 3.5ft (1.0m) 5s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming up for Octagon House.
Right off the bat, I gotta be straight with you – we’re in for a long, dry spell. For the first week and a half or so, there’s just nothing worth paddling out for. We’re talking non-stop poor surf conditions and pathetic little dribbles of energy – the combined energy barely hits double digits for days. It’s a real bummer. The wait is gonna feel like forever, stretching all the way through to about the 22nd of September with barely a whisper of a wave.
The only light at the end of this tunnel, and I mean the *only* one, is the morning of Friday the 25th of September. That’s where things finally look half-interesting. We’ve got a pulse of long-period groundswell rolling in from the southeast at 3 ft, with a period of 10 seconds. The combined energy jumps right up to 222 (moderate energy), which is a massive step up from the nothing we’ve had. What makes this a standout is the wind – a clean, glassy cross-offshore breeze from the north-northeast at 9 mph. That’ll have the waves looking smooth and lined up. Water temp is about average for this time of year, so a touch warmer than normal (87°F).
Now, a word of caution for that Friday morning. This is Octagon House, a beginner-friendly spot that’s fairly consistent when it gets swell, but crowds are possible. With that offshore wind and the first real swell in weeks, expect it to be busy. Also, that 10-second period means the sets will have some proper shape, but don't expect a massive wall of water – it's still a small swell. The afternoon, though, will get chopped up by the onshore breeze, so your window is the morning. For anything after that, the forecast goes quiet again.
Don’t get your hopes up too high, but that Friday the 25th morning is your one and only shot in this whole 16-day window. Keep an eye on it.
– Rusty
Short Range ForecastHeavy rain (total 26mm), heaviest during Thu morning. Warm (max 31°C on Sat morning, min 28°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Sun afternoon. Warm (max 30°C on Sun morning, min 28°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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) | E 4 | ESE 4 | ESE 5 | S 4 | S 4 | S 4 | S 5 | S 6 | S 6 | S 5 | S 5 | SSE 4 | SSE 5 | SSE 5 | SSE 6 | SSE 5 | SSE 5 | SE 6 | SSE 5 | SE 5 | SE 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 4 | 5 | 8 | 13 | 30 | 33 | 30 | 29 | 25 | 19 | 30 | 22 | 23 | 46 | 34 | 26 | 31 | 19 | 17 | 17 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on | cross-on | on | on | on | on | cross-on | cross-on | on |
High Tide | 3:41PM0.43m | 5:19AM0.39m | 4:57PM0.42m | 5:31AM0.38m | 6:13PM0.42m | 5:41AM0.38m | 7:30PM0.42m | 5:44AM0.38m | 8:51PM0.43m | 5:31AM0.39m | 10:21PM0.44m | 00:22AM0.45m | |||||||||
Low Tide | 10:14AM0.30m | 10:41PM0.11m | 10:54AM0.23m | 11:25PM0.18m | 11:35AM0.18m | 00:08AM0.25m | 12:15PM0.13m | 00:52AM0.32m | 12:55PM0.09m | 1:41AM0.37m | 1:37PM0.07m | 2:24PM0.07m | |||||||||
 |  |  |  | |  | | | |  | | | | | | | |  | | | | |
 | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — |
 | — | 7:31 | — | — | 7:30 | — | — | 7:29 | — | — | 7:28 | — | — | 7:27 | — | — | 7:24 | — | — | 7:23 | — |
mm | 11 | — | 3 | 9 | 3 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 29 | 30 | 29 | 30 | 29 | 29 | 31 | 30 | 29 | 30 | 30 | 29 | 30 | 30 | 29 | 30 | 30 | 29 | 29 | 29 | 29 |
Feels °C | 33 | 34 | 31 | 33 | 30 | 32 | 32 | 32 | 32 | 33 | 33 | 32 | 32 | 33 | 32 | 33 | 33 | 31 | 33 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | E 4 | ESE 4 | ESE 5 | E 5 | — | SE 8 | SE 8 | SE 8 | SE 10 | SE 9 | SE 9 | SE 8 | SE 8 | S 6 | — | SE 10 | SSE 5 | SE 9 | SSE 5 | SE 8 | SE 5 |
| kJ | 3 | 4 | 5 | 2 | — | 2 | 2 | 2 | 4 | 3 | 3 | 3 | 3 | 1 | — | 4 | 26 | 3 | 19 | 2 | 17 |
Swell 2 Height (m) Direction Period (s) | S 4 | S 4 | SE 7 | SE 8 | SE 8 | — | SE 10 | S 11 | SE 10 | — | SE 9 | — | SE 8 | SE 8 | — | SE 9 | SE 9 | — | SE 8 | SE 8 | SE 9 |
| kJ | 3 | 1 | 2 | 2 | 2 | — | 4 | 2 | 4 | — | 12 | — | 3 | 3 | — | 3 | 3 | — | 3 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 8 | S 7 | SE 7 | — | — | — | — | — | — | — | — | — | SE 8 | — | E 8 | — | — | S 7 | SE 9 | S 6 |
| kJ | 2 | 2 | 1 | 2 | — | — | — | — | — | — | — | — | — | 3 | — | 1 | — | — | 1 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | S 3 | S 4 | S 4 | S 4 | S 5 | S 6 | S 6 | S 5 | S 5 | SSE 4 | SSE 5 | SSE 5 | SSE 6 | SSE 5 | — | SE 6 | — | SE 5 | — |
| kJ | — | — | 3 | 8 | 13 | 30 | 33 | 30 | 29 | 25 | 19 | 30 | 22 | 23 | 46 | 34 | — | 31 | — | 17 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1291 | 1331 | 1291 | 1296 | 1342 | 1291 | 1296 | 1335 | 1291 | 1296 | 1310 | 1296 | 1291 | 1308 | 1291 | 1296 | 1397 | 1291 | 1291 | 1461 | 1291 |
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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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