Surf Forecasts:
Octagon House surf forecast from 12 Sep 2026:
- Best quality surf: Friday 18 Sep, 7AM (local time) - 2.5ft (0.8m), 6s period, ESE swell with glassy winds.
- Most powerful swell: Thursday 17 Sep, 1PM (local time) - 4ft (1.2m), 6s period, ESE swell with 103 kJ wave energy.
- Next surfable swell (1★+): Friday 18 Sep, 7AM (local time) - 2.5ft (0.8m), 6s period with ESE swell.
Best Forecast Surf Conditions for Octagon House this week:
The surf forecast for Octagon House over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 18) at 7AM. The primary swell is predicted to be 0.8m and 6s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Octagon House in the next 16 days are 1.2m 6s and forecast to arrive on Thursday (Sep 17) at 1PM. 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+) | 7AM (Fri 18th Sep) | 2.5ft (0.8m) 6s |
| Best Surf | 7AM (Fri 18th Sep) | 2.5ft (0.8m) 6s |
| Most Powerful | 1PM (Thu 17th Sep) | 4ft (1.2m) 6s |
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 we’ve got for the next couple of weeks. It’s a pretty quiet picture overall, so set your expectations low.
To be straight with you, for the vast majority of this 16-day window, it’s flat or close to it. You’re looking at a long stretch of tiny, choppy conditions starting from the 11th of September all the way through to the 18th. The swell is small and mostly coming from the south and southeast, which isn't ideal for this setup, and the winds are constantly cross-on, making it a messy affair. The wave energy is weak, sitting well under 100 – think lonely numbers like 17 and 35. It's frustrating, but not unusual for the area when the swell direction is off.
Now, there is one session that stands out, and it’s for the early birds. On the 18th of September, for Friday morning, we get a brief window of something worth paddling out for at Octagon House. A tiny ESE swell of 3ft sneaks in, but the real story is the wind. It’s going glassy. A 3 mph breeze from the NNE with a glassy wind state is about as clean as it gets. The water temp is sitting at 87°, which is a touch warmer than normal for this time of year, so you can leave the spring suit at home. It’s not pumping, but it’s the one clean chance you’ll get. The break is exposed to the swell and fairly consistent, so there’ll be a few rides to be had, but with only 51 units of combined energy (51), it's not going to be a world-beater. Crowds are "sometimes" an issue at Octagon House, so early is definitely key.
After that brief flash, the rest of the outlook fades back into tiny surf. The 19th offers a clean 2ft on the morning with a NW offshore, but the energy is practically gone at 26. The 20th is glassy again with a tiny 1ft. The very end of the forecast period, into the last week of September, sees the swell dropping to almost nothing, with combined energy figures dropping to single digits and zeros. It’s a long, slow fade-out.
So, to sum it up: save your energy for that Friday morning session on the 18th of September at Octagon House. It’s the only real highlight in a very quiet outlook.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Fri night. Warm (max 31°C on Sat morning, min 28°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Mon afternoon, min 28°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 4 | S 4 | SSW 5 | S 6 | S 6 | S 5 | S 5 | SSE 5 | SSE 5 | SSE 5 | SSE 6 | SSE 5 | SSE 5 | SE 4 | SE 5 | ESE 4 | SE 5 | ESE 6 | ESE 6 | SE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 15 | 16 | 27 | 31 | 32 | 21 | 20 | 28 | 20 | 20 | 33 | 17 | 17 | 18 | 10 | 7 | 43 | 87 | 91 | 63 |
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 | on | cross-on | cross-on | on | cross-on | cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | on |
High Tide | 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 | 2:57AM0.46m | |||||||||
Low Tide | 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 | 3:19PM0.08m | ||||||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — |
 | 7:30 | — | — | 7:29 | — | — | 7:28 | — | — | 7:27 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — |
mm | 1 | 2 | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 30 | 29 | 31 | 31 | 29 | 30 | 30 | 29 | 30 | 30 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 29 | 28 |
Feels °C | 33 | 31 | 33 | 33 | 31 | 33 | 33 | 32 | 33 | 32 | 31 | 33 | 33 | 32 | 31 | 31 | 31 | 31 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | — | SE 8 | SE 8 | SE 8 | SE 10 | SE 9 | SE 9 | ESE 8 | SE 8 | SSW 5 | S 10 | SE 9 | SSE 7 | SE 8 | SE 8 | S 5 | — | — | — | SE 7 |
| kJ | — | 2 | 2 | 2 | 4 | 3 | 3 | 7 | 3 | 5 | 2 | 3 | 5 | 3 | 2 | 5 | — | — | — | 63 |
Swell 2 Height (m) Direction Period (s) | SE 8 | — | SE 10 | S 11 | SE 10 | — | SE 9 | — | — | SSE 7 | — | SE 9 | SE 9 | SE 10 | — | SE 9 | — | — | — | — |
| kJ | 2 | — | 4 | 2 | 4 | — | 3 | — | — | 5 | — | 3 | 3 | 4 | — | 3 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | S 11 | — | S 7 | SE 11 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 1 | 5 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | SSW 5 | S 6 | S 6 | S 5 | S 5 | SSE 5 | SSE 5 | SSE 5 | SSE 6 | SSE 5 | SSE 5 | SE 4 | SE 5 | ESE 4 | SE 5 | ESE 6 | ESE 6 | — |
| kJ | 15 | 16 | 27 | 31 | 32 | 21 | 20 | 28 | 20 | 20 | 33 | 17 | 17 | 18 | 10 | 7 | 43 | 87 | 91 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1335 | 1291 | 1296 | 1331 | 1295 | 1296 | 1330 | 1295 | 1296 | 1331 | 1291 | 1296 | 1395 | 1291 | 1296 | 808 | 1291 | 1296 | 1559 | 613 |
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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