Surf Forecasts:
Octagon House surf forecast from 18 Jul 2026:
- Most powerful swell: Saturday 18 Jul, 7PM (local time) - 1.5ft (0.5m), 6s period, SE swell with 19 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 0.5m 6s and forecast to arrive on Saturday (Jul 18) at 7PM. 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 | 7PM (Sat 18th Jul) | 1.5ft (0.5m) 6s |
Table - best surf conditions forecast for Octagon House over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s take a look at the next 16 days. I’m looking at Octagon House, a beginner-friendly spot that’s exposed to the south-east. The water is sitting at 85.5°F – that’s about 1.1°F warmer than usual, so nothing crazy, just a touch of summer warmth in the water. But honestly, the outlook is a quiet one. There’s a long stretch of nothing much on offer, and the first real chance to even consider a paddle won’t come for a while.
From Saturday 18 July right through to Sunday 2 August, the surf is tiny and the winds are mostly cross or cross-onshore, which keeps things messy. We’re talking swell heights barely scraping 2ft, with periods hanging around 4–7 seconds – short-period, weak junk. The combined energy is low, in the range of 6 to 94 (moderate on the very last day), so it’s not going to light any fires. The best of the mornings, like Monday 20 July, Wednesday 22 July, and Friday 24 July, see a light cross-offshore breeze and clean conditions, but the swell is barely there – 1ft with a 4-second period. That’s not enough to push a log, let alone a shortboard. It’s poor surf, every day, according to the numbers.
The standout – and I use that term loosely – is the very end of the run. On Sunday 2 August, the afternoon shows a 3.3ft swell from the southeast, with a 6-second period and combined energy hitting 94 (moderate). That’s the biggest pulse we see, but it’s still short-period and the wind is a moderate cross-onshore, so it’ll be choppy and a bit of a battle. For a beginner-friendly break, that’s about the best you’ll get, but it’s not something to get excited about. Crowds are possible at Octagon House, but with this quality, I doubt you’ll have to fight for a wave.
There’s nothing here that’s worth a special trip. The whole 16-day window is a flat, weak spell. Keep the board in the car and wait for a better forecast.
Short Range ForecastMostly dry. Warm (max 31°C on Mon morning, min 25°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 31°C on Tue morning, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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) | SE 6 | SE 7 | SE 6 | SE 6 | SE 6 | S 3 | SSW 4 | SSW 4 | SSW 3 | SSW 4 | S 4 | SSW 4 | SSW 4 | S 4 | SSW 3 | S 4 | S 4 | SW 3 | SSE 6 | S 5 | SSW 3 |
Wave Graph  | |||||||||||||||||||||
 kJ | 21 | 27 | 13 | 6 | 6 | 5 | 3 | 5 | 4 | 3 | 7 | 7 | 5 | 5 | 4 | 3 | 3 | 3 | 6 | 5 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-on | cross | cross-off | cross-on | cross-off | cross-off | cross-on | cross | cross-off | cross-on | cross | off | cross-on | cross | cross-off | cross-on | cross |
High Tide | 8:02PM0.24m | 9:07AM0.29m | 10:15PM0.23m | 9:19AM0.28m | 00:55AM0.27m | 9:21AM0.28m | 3:15AM0.32m | 4:12AM0.36m | 4:53AM0.38m | ||||||||||||
Low Tide | 3:00PM0.17m | 2:13AM0.09m | 4:04PM0.10m | 3:07AM0.18m | 4:58PM0.04m | 4:58AM0.26m | 5:45PM-0.02m | 6:28PM-0.05m | 7:09PM-0.08m | 7:49PM-0.09m | |||||||||||
 | |  | | |  | | | | |  | | | | | | | | | | | |
 | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — |
 | — | 8:20 | — | — | 8:19 | — | — | 8:19 | — | — | 8:17 | — | — | 8:17 | — | — | 8:16 | — | — | 8:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 28 | 29 | 30 | 27 | 31 | 31 | 28 | 31 | 31 | 28 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 28 |
Feels °C | 32 | 32 | 32 | 32 | 32 | 29 | 34 | 33 | 29 | 34 | 32 | 29 | 33 | 32 | 30 | 34 | 32 | 30 | 33 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SE 6 | SE 7 | SE 6 | SE 6 | SE 6 | ESE 6 | SSW 4 | SE 9 | SE 10 | SSW 4 | SE 9 | SE 9 | SSW 4 | SE 9 | SE 9 | S 4 | SE 6 | SSE 5 | SSE 6 | SE 8 | SE 5 |
| kJ | 21 | 27 | 13 | 5 | 5 | 3 | 3 | 3 | 4 | 3 | 3 | 3 | 5 | 3 | 3 | 2 | 1 | 2 | 6 | 3 | 1 |
Swell 2 Height (m) Direction Period (s) | — | SE 11 | SE 10 | SE 9 | SE 9 | SE 10 | SE 9 | SE 5 | — | SE 9 | — | SE 10 | SE 9 | S 11 | S 10 | SE 9 | SE 9 | S 6 | — | SE 8 | SE 8 |
| kJ | — | 5 | 4 | 3 | 3 | 4 | 3 | 1 | — | 3 | — | 4 | 3 | 2 | 2 | 3 | 3 | 1 | — | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | — | SE 11 | — | — | SE 11 | — | SE 5 | SE 11 | — | — | — | — | S 11 | S 11 | E 5 | SE 6 | S 5 | SE 8 | SE 9 | — | S 10 |
| kJ | — | 5 | — | — | 5 | — | 1 | 5 | — | — | — | — | 2 | 2 | 1 | 1 | 1 | 3 | 3 | — | 2 |
Wind waves Height (m) Direction Period (s) | S 4 | S 5 | S 4 | SSW 4 | S 4 | S 3 | — | SSW 4 | SSW 3 | — | S 4 | SSW 4 | — | S 4 | SSW 3 | — | S 4 | SW 3 | — | S 5 | SSW 3 |
| kJ | 10 | 11 | 6 | 6 | 6 | 5 | — | 3 | 4 | — | 7 | 7 | — | 5 | 4 | — | 2 | 2 | — | 5 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1296 | 1330 | 1291 | 1291 | 1330 | 1291 | 1296 | 1330 | 1291 | 1296 | 1330 | 1291 | 1296 | 1291 | 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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