Surf Forecasts:
Octagon House surf forecast from 10 Sep 2026:
- Most powerful swell: Tuesday 15 Sep, 7PM (local time) - 3ft (0.9m), 6s period, SE swell with 46 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 0.9m 6s and forecast to arrive on Tuesday (Sep 15) at 7PM. 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 | 7PM (Tue 15th Sep) | 3ft (0.9m) 6s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – this 16-day window for Octagon House is a tough one. We’re looking at a long stretch of essentially flat to tiny, messy waves, and the conditions just aren't lining up for a proper paddle. The water is sitting at a warm 87°F, which is a touch warmer than normal for this time of year.
The first real sign of life doesn't pop up until the 22nd of September, and even then it's inconsistent. From now through the 21st, we’re dealing with a nasty mix of onshore and cross-shore winds, tiny swell from the SE and E with periods as short as 3-4 seconds, and overall weak energy. This is a long, dry spell for surfers.
On Tuesday the 22nd of September, we finally see a bump. The morning brings a clean, cross-offshore wind from the NNE, with a small 3 ft swell from the SE. The energy is still weak (29), but it's the cleanest the water will look. The afternoon gets a bit messier with a cross-onshore breeze, but the swell picks up to 3 ft from the ESE.
The best chance in this whole window lands on Wednesday the 23rd and Thursday the 24th of September. On the 23rd, the swell builds to 4 ft to 5 ft from the SE and ESE, with a period of 6 seconds. The energy picks up to moderate (95-136), but the wind is a cross-shore from the NE, leaving a chop on the surface. It’s not perfect, but it's the most size we'll see.
Thursday the 24th of September is the standout. The morning offers a 5 ft swell from the ESE with a period of 7 seconds, and the wind turns clean and cross-offshore from the NNE at 22 mph. The combined energy climbs to 192 (moderate). This is the only time the setup looks like it might offer a few decent, clean waves. The 5 ft height is getting into the zone where it's a bit much for beginners, but for the rest of us, it's the best on offer. The wind is going to be fresh, so hold onto your board. The swell is a bit short-period, so don't expect long lines, but it's the closest we'll get to a proper session.
Overall, there’s a big gap of nothing followed by a very brief window of potential. The 24th is your best bet, but keep expectations in check.
Rusty
Short Range ForecastHeavy rain (total 21mm), heaviest during Thu morning. Warm (max 30°C on Thu morning, min 28°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sun afternoon. Warm (max 30°C on Sun morning, min 28°C on Sat 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 | SSW 4 | S 4 | S 5 | S 5 | S 5 | S 5 | SSE 5 | SSE 4 | SSE 5 | SSE 5 | SSE 4 | SSE 6 | SSE 6 | SE 5 | SE 5 | SE 5 | SE 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 4 | 2 | 4 | 11 | 16 | 32 | 28 | 27 | 25 | 20 | 26 | 33 | 24 | 32 | 45 | 41 | 29 | 19 | 12 | 11 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross | cross | cross-on | cross-on | cross-on | on | on | on | on | cross-on | on | on | on | on | on | on | on | on |
High Tide | 5:07AM0.41m | 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 | 6 | — | 1 | 3 | 5 | — | 2 | — | — | — | 1 | 1 | — | — | — | — | — | 1 | 4 | — | — |
Temp °C | 30 | 30 | 29 | 30 | 29 | 29 | 30 | 30 | 29 | 30 | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 29 | 28 |
Feels °C | 34 | 33 | 32 | 32 | 32 | 31 | 32 | 32 | 32 | 33 | 32 | 31 | 33 | 33 | 31 | 32 | 31 | 32 | 32 | 31 | 31 |
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 | — | SSE 6 | — | SE 9 | SE 5 | S 5 | S 5 |
| kJ | 3 | 4 | 2 | 2 | — | 2 | 2 | 2 | 4 | 3 | 3 | — | 3 | 3 | — | 45 | — | 3 | 19 | 5 | 5 |
Swell 2 Height (m) Direction Period (s) | S 4 | S 4 | SE 7 | SE 7 | SE 8 | — | SE 10 | S 11 | SE 8 | — | — | — | SE 8 | S 6 | — | S 6 | — | — | SE 8 | SE 8 | SE 8 |
| kJ | 3 | 1 | 2 | 2 | 2 | — | 4 | 2 | 3 | — | — | — | 2 | 1 | — | 16 | — | — | 3 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 8 | S 5 | S 6 | — | — | — | — | — | — | — | — | — | SE 8 | — | — | — | — | S 6 | SE 9 | — |
| kJ | 2 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | 1 | 3 | — |
Wind waves Height (m) Direction Period (s) | — | — | SSE 2 | S 4 | SSW 4 | S 4 | S 5 | S 5 | S 5 | S 5 | SSE 5 | SSE 4 | SSE 5 | SSE 5 | SSE 4 | — | SSE 6 | SE 5 | — | SE 5 | SE 5 |
| kJ | — | — | 1 | 4 | 11 | 16 | 32 | 28 | 27 | 25 | 20 | 26 | 33 | 24 | 32 | — | 41 | 29 | — | 12 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1296 | 1324 | 1291 | 1291 | 1331 | 1291 | 1296 | 1331 | 1291 | 1291 | 1308 | 1291 | 1291 | 1342 | 1291 | 1296 | 1395 | 1291 | 1291 | 1324 | 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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