Octagon House Surf Break

Lat Long: 29.09° N 95.10° W

Octagon House Surf Forecast and Surf Report

Issued: 6 am 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's Octagon House sea temperature is
30.7°C
2.0° 

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 11 Sep 2026:

  • Most powerful swell: Thursday 17 Sep, 7PM (local time) - 4ft (1.2m), 6s period, ESE swell with 103 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 1.2m 6s and forecast to arrive on Thursday (Sep 17) at 7PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (CDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 7PM (Thu 17th Sep)4ft (1.2m) 6s

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


The Lowdown

Alright, Rusty here. Let's run through the numbers the other way. Honestly, for Octagon House, this 16-day stretch is a rough one. We’re looking at a long run of small, choppy waves, especially for the first week or so. The water temp is about 87°F on Friday morning, which is a bit warmer than average for this time of year, running about 4°F above normal.

The first bit of action is Friday, September 11, but it's not good. We've got a tiny 2ft swell from the SSW with a weak, short 4-second period. The combined energy is a weak 17, and with a 12 mph cross-shore wind from the SW, it's going to be a choppy, messy mess. That same story plays out through the weekend and into the start of the next week. You're looking at 2ft waves with cross or onshore winds from the SSE and SE. It's a solid 8 to 9 day stretch of poor surf.

Into the second week, it doesn't get much better. By Thursday afternoon, September 17, the swell pushes up to 3ft from the ESE with a 6-second period. The energy climbs to 75, which is the best we'll see, but the wind is still a moderate 16 mph cross-onshore, making it choppy. Even at that size, the quality is poor. For a beginner spot like Octagon House, any swell over 5ft can be intimidating, but luckily it never gets near that. The wind does turn offshore from the NNW on the morning of Saturday, September 19, giving us clean conditions, but the swell has already dropped to just 2ft. A real tease.

From Sunday, September 20, all the way through to Saturday, September 26, the surf flatlines. Swell drops to 0.7ft to 2ft, with periods mostly around 4 to 6 seconds. The combined energy is in the single digits for many sessions. You'll see some clean windows with light offshore breezes from the N and NNE, but there's nothing to ride. The final week is a total gap with no real surf.

Honestly, the cleanest surf is a small window on Saturday morning, September 19, with an offshore NNW breeze and a clean surface, but you're looking at only 2ft of swell. After that, it's flat. This is a time to give your board a rest and wait for a better forecast.

Rusty.

Short Range Forecast

Moderate rain (total 12mm), heaviest on Fri morning. Warm (max 31°C on Sat morning, min 26°C on Fri morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 30°C on Mon morning, min 28°C on Tue night). Wind will be generally light.

Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
AM
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
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SSW
4
0.5
S
4
0.6
S
4
0.7
S
5
0.7
S
6
0.6
S
6
0.6
S
5
0.5
S
5
0.6
SSE
5
0.6
SSE
5
0.7
SSE
5
0.8
SSE
4
0.6
SSE
5
0.6
SSE
5
0.7
SE
5
0.5
SE
5
0.7
SE
5
0.9
SE
5
0.9
SE
6
1
ESE
6
1
SE
7
Wave Graph
Metric surfscale
Energy kJ
13
10
10
25
31
24
21
13
20
20
23
22
15
19
27
12
29
40
52
75
91
Wind (km/h)
20
SW
10
S
25
SSW
15
SSW
20
S
20
S
15
SSE
15
SSE
20
SSE
15
SSE
15
SE
20
SSE
15
SSE
15
SE
20
SSE
15
ESE
20
ESE
20
SE
20
ESE
25
ESE
20
SE
Wind State
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
cross-on
on
on
cross-on
cross-on
on
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
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
3:19PM0.08m
thunderstorm
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:01
7:03
7:03
7:03
7:05
7:05
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:30
7:29
7:28
7:27
7:24
7:23
7:22
 mm
10
1
1
Temp °C
29
28
29
31
31
29
30
30
29
30
30
29
30
30
29
29
29
28
29
29
29
Feels °C
30
30
31
33
32
31
33
33
31
33
33
32
33
33
32
31
30
30
31
29
29
  • Map Icons:
  • Break
  • 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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