Surf Forecasts:
Octagon House surf forecast from 21 Aug 2026:
- Most powerful swell: Thursday 27 Aug, 4AM (local time) - 3ft (0.9m), 4s period, S swell with 30 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 4s and forecast to arrive on Thursday (Aug 27) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Thursday (Aug 27) at 10AM.
| Wave Type | Time (CDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Thu 27th Aug) | 3ft (0.9m) 4s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
Alright, gather 'round. Rusty here. Let's be straight with you about this stretch we're looking at.
First off, the big picture. If you're looking to paddle out, you're gonna need patience. The whole 16-day window is a bit of a flat spell for Octagon House. Swell is tiny, wind is mostly from the wrong quarter, and the "poor surf conditions" tag is pretty much the story from start to finish. There's a gap at the start with no real surf on offer, and honestly, it doesn't get much better. The water is sitting at 87°F, which is a touch warmer than normal for this time of year, so at least a dip won't be cold.
Looking at the first few days, Thursday the 20th of August through the weekend, we're looking at swell heights barely hitting 2 ft from the south, with a short period of 4 seconds. That's windswell, not groundswell. The combined energy is weak, with values like 13 (moderate wave energy) on the Thursday morning, so nothing to write home about. Winds are cross or cross-onshore, so it'll be choppy and messy. The cleanest moment might be Saturday morning the 22nd, with a light cross-offshore breeze from the WSW, but even then, the swell is still only 2 ft. It's a small window.
The week after that, from the 24th of August onwards, the story is the same. Swell stays tiny, often dropping to 0.7 ft or 1 ft, with periods still short at 4-5 seconds. The combined energy is in the single digits or low teens – weak stuff. The wind is persistently cross or cross-onshore, with a few rare moments of cleaner conditions like on the 3rd of September morning, but the swell is still a paltry 1 ft. The wave energy is low, and the setup is a beach-and-reef spot, but with this lack of power, it's not even interesting for kite surfing.
There are no true standouts here. When the swell is this small and the wind is not cooperating, it's just not worth the drive. The forecast confidence is high for the near term, but it's confidently flat. A blank run like this is more normal for the area when the conditions don't align.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Thu morning, min 27°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Sun morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | S 4 | SSE 4 | S 4 | S 4 | SSW 4 | S 3 | S 3 | S 4 | S 4 | S 4 | S 5 | S 5 | S 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 8 | 13 | 9 | 10 | 12 | 9 | 9 | 12 | 6 | 6 | 7 | 3 | 3 | 6 | 7 | 8 | 22 | 21 | 16 | 21 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross-on | cross | cross-off | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on |
High Tide | 4:01AM0.41m | 4:44AM0.41m | 5:18AM0.41m | 5:36AM0.40m | 5:38AM0.39m | 5:40AM0.38m | 1:45PM0.37m | ||||||||||||||
Low Tide | 5:29PM-0.00m | 6:25PM-0.01m | 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 | ||||||||||||
 | |  | | | | | | | | | | | | |  | | | | | | |
 | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 31 | 30 | 29 | 31 | 31 | 28 | 31 | 30 | 28 | 30 | 30 | 28 | 30 | 29 | 28 | 30 | 29 | 28 | 30 | 29 | 28 |
Feels °C | 33 | 31 | 31 | 33 | 32 | 29 | 33 | 31 | 29 | 31 | 31 | 30 | 32 | 30 | 30 | 32 | 30 | 29 | 32 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | ESE 6 | ESE 5 | SE 5 | S 4 | SE 5 | SE 6 | S 4 | SE 7 | SE 7 | SSE 4 | SE 8 | SE 8 | SSE 5 | SE 9 | SE 10 | SE 9 | SE 8 | SE 8 | S 5 | SE 8 | SE 8 |
| kJ | 3 | 3 | 1 | 9 | 1 | 1 | 9 | 2 | 2 | 6 | 2 | 2 | 3 | 3 | 4 | 3 | 3 | 3 | 21 | 2 | 2 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 8 | SE 8 | SE 5 | SE 7 | — | SE 6 | SE 5 | S 6 | SSW 4 | SE 5 | S 6 | SE 9 | SE 5 | SE 10 | — | — | — | SE 8 | — | — |
| kJ | 3 | 3 | 2 | 1 | 2 | — | 1 | 1 | 1 | 2 | 1 | 1 | 3 | 1 | 4 | — | — | — | 3 | — | — |
Swell 3 Height (m) Direction Period (s) | — | SE 6 | — | SE 7 | — | — | S 8 | — | — | S 8 | — | — | S 9 | — | — | — | — | — | — | — | — |
| kJ | — | 2 | — | 2 | — | — | 1 | — | — | 1 | — | — | 2 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | S 4 | — | S 4 | S 4 | — | S 4 | S 4 | — | S 4 | S 4 | SSW 4 | S 3 | S 3 | S 4 | S 4 | S 4 | — | S 5 | S 4 |
| kJ | 7 | 8 | 13 | — | 10 | 12 | — | 9 | 12 | — | 6 | 7 | 2 | 2 | 6 | 7 | 8 | 22 | — | 16 | 21 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1296 | 1399 | 1291 | 1296 | 1456 | 1291 | 1296 | 1331 | 1291 | 1296 | 1303 | 1291 | 1296 | 1342 | 1291 | 1291 | 1342 | 1291 | 1296 | 1346 | 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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