Octagon House Surf Break

Lat Long: 29.09° N 95.10° W

Octagon House Surf Forecast and Surf Report

Issued: 6 pm 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Octagon House sea temperature is
30.6°C
1.5° 

Octagon House surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Octagon House surf forecast from 1 Sep 2026:

  • Most powerful swell: Wednesday 2 Sep, 4AM (local time) - 3ft (0.9m), 4s period, S swell with 31 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 Wednesday (Sep 02) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (CDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4AM (Wed 2nd Sep)3ft (0.9m) 4s

Table - best surf conditions forecast for Octagon House over the next 16 days.


The Lowdown

G’day, Rusty here. Look, I’ve got to be straight with you – it’s a tough stretch ahead for Octagon House. We’re looking at a full 16-day window, and honestly, there’s hardly a wave worth paddling for. From Monday the 31st of August right through to Tuesday the 15th of September, the swell just isn’t showing up with any grunt. It’s a flat spell, plain and simple.

Starting Monday afternoon, we’ve got tiny 0.3 ft from the southeast with a short 8-second period – combined wave energy is a measly 4 (that’s weak). On top of that, the wind is a cross-onshore mess at 15 km/h, making it choppy. The water’s sitting at a warm 87°, which is a touch warmer than normal for this time of year, but that’s the only highlight because the surf is rubbish.

The next morning, Tuesday September 1st, there’s a brief flicker of hope with a light offshore breeze from the northwest and a clean-looking 2 ft from the east, but the period is a tiny 6 seconds and the energy only hits 17. It’s still classified as poor. By the afternoon, that wind swings south and picks up, ruining any chance.

Through Wednesday and Thursday, we see a slight bump to 2 ft on Wednesday morning, but it’s from the south with a 4-second period – just slop. The combined energy barely reaches 24. Every session is plagued by cross-onshore winds and chop. Friday through Sunday are more of the same: tiny waves, short periods, and messy conditions.

Even when we get a glassy morning on Monday September 7th – with the wind dropping to 5 km/h from the southwest and the water going flat – the swell is only 1 ft from the southeast. That’s not enough to break cleanly. The rest of the first week and into the second is all 1 ft to 2 ft slop, with poor energy readings (mostly under 40) and onshore winds.

We do see a small lift around Thursday September 10th, with the swell pushing to 3 ft from the south-southeast. The combined energy climbs to 39 on Thursday afternoon and even 42 on Friday morning – the highest of the whole run. But that’s still weak, and with moderate cross-onshore winds at 20-25 km/h, it’s choppy and a mess. For a spot like Octagon House, which is exposed to the southeast and fairly consistent, this is a real dry spell.

Bottom line: There’s nothing surfable in this 16-day window. The swell never reaches a size that matters, and even the best winds can’t fix tiny, gutless waves. If you’re desperate, the Thursday/Friday of the second week (10th-11th September) has the most energy at 39-42, but it’s still poor. I’d say sit this one out, mate. The forecasts can change, but right now it’s a blank run.

Rusty.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Tue morning. Warm (max 30°C on Mon afternoon, min 27°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Fri morning. Warm (max 30°C on Thu afternoon, min 28°C on Thu night). Wind will be generally light.

Mon
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
S
4
0.4
ESE
5
0.5
E
6
0.4
E
6
0.9
S
4
0.7
S
4
0.6
S
5
0.5
SSE
4
0.6
S
5
0.5
S
5
0.5
SSE
4
0.5
SSE
4
0.4
SSE
4
0.5
SSE
4
0.5
S
4
0.4
SSE
5
0.4
SSE
5
0.4
SSE
5
0.4
SSE
5
0.2
SSE
5
Wave Graph
Metric surfscale
Energy kJ
3
10
17
9
28
20
15
7
15
11
11
10
6
7
9
7
8
10
9
3
Wind (km/h)
15
E
10
SE
15
NW
20
S
25
S
20
SSW
20
SSE
20
SSE
10
S
15
SE
20
SSE
15
S
20
SSE
20
SSE
10
SSE
20
SE
15
S
10
S
15
SE
15
S
Wind State
cross-on
on
off
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
High Tide
8:09PM0.36m
6:02AM0.37m
9:48PM0.39m
5:42AM0.39m
11:43PM0.42m
5:14AM0.42m
4:42AM0.45m
3:43AM0.47m
4:03AM0.48m
Low Tide
00:41AM0.29m
1:32PM0.06m
1:21AM0.35m
2:25PM0.02m
1:59AM0.41m
3:26PM-0.02m
4:36PM-0.03m
5:50PM-0.04m
7:02PM-0.04m
clear
rain showers
mod rain
thunderstorm
thunderstorm
clear
clear
clear
thunderstorm
part cloud
part cloud
thunderstorm
clear
clear
thunderstorm
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:58
6:58
6:58
6:58
7:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:43
7:42
7:40
7:39
7:38
7:37
7:36
 mm
3
6
2
2
1
2
1
Temp °C
30
29
30
29
29
30
30
29
30
30
29
30
30
29
30
30
29
30
30
29
Feels °C
32
31
33
30
30
32
31
31
32
31
31
33
32
31
32
31
32
32
32
32
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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