
Surf Forecasts:
Sebastian Inlet-Third Peak surf forecast from 10 Sep 2026:
- Best quality surf: Thursday 10 Sep, 8PM (local time) - 2.5ft (0.7m), 7s period, ENE swell with cross-offshore winds.
- Most powerful swell: Friday 11 Sep, 5PM (local time) - 2ft (0.6m), 8s period, ESE swell with 46 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 8PM (local time) - 2.5ft (0.7m), 7s period with ENE swell.
Best Forecast Surf Conditions for Sebastian Inlet-Third Peak this week:
The surf forecast for Sebastian Inlet-Third Peak over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 10) at 8PM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.3m and 4s. Another secondary swell of 0.5m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sebastian Inlet-Third Peak in the next 16 days are 0.6m 8s and forecast to arrive on Friday (Sep 11) at 5PM. 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 Friday (Sep 11) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Thu 10th Sep) | 2.5ft (0.7m) 7s |
| Best Surf | 8PM (Thu 10th Sep) | 2.5ft (0.7m) 7s |
| Most Powerful | 5PM (Fri 11th Sep) | 2ft (0.6m) 8s |
Table - best surf conditions forecast for Sebastian Inlet-Third Peak over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let’s get straight into what we’ve got coming up over the next couple of weeks. Gotta be honest with you, this stretch is a real mixed bag – and for the most part, it’s a pretty flat and frustrating one. We’re looking at a long, dry spell with barely a ripple worth paddling for, and then a late pulse of something a bit more interesting way out in the second week. Let’s break it down.
We’re talking about *Sebastian Inlet-Third Peak* (a beach/jetty setup) for the whole outlook. Right now, the water is sitting at a warm 83°, which is pretty much spot on for this time of year – nothing unusual there.
The first week and a bit is a real struggle. From Thursday the 10th right through to Monday the 21st of September, the surf is tiny and mostly junk. You’ll see mornings with a bit of clean glass, like Friday the 11th with a glassy 1ft from the east-northeast, or Saturday the 12th with clean 1.0ft, but the energy is pathetic. The combined energy on those days is barely a whisper (32 and 31 respectively). The swell is short-period, weak, and just doesn’t have any punch. Most afternoons are blown out by a cross-shore breeze, making it choppy and messy. Honestly, for a solid 11 days, there’s nothing worth getting wet for. It’s a real flat spell.
Then, things start to change. Around Tuesday the 22nd of September, a new swell shows up. The combined energy jumps to 185 in the morning and 193 in the afternoon, which is moderate energy. Swell height is 4ft from the northeast, with a period of 8 seconds. The wind is a fresh cross-shore, so it’s going to be lumpy and a bit of a battle. Still, it’s a step up.
The real standout, the only one in this whole outlook, looks like it’s going to be Wednesday the 23rd and Thursday the 24th of September. This is the one to circle on the calendar. On Wednesday morning, we’re looking at a solid 6ft northeast swell, with a period of 10 seconds and a combined energy of 536 – that’s strong wave energy. The wind is a moderate cross-onshore, so it’ll be a bit choppy, but there’s real power in the water. Thursday the 24th pushes it even further, with 5ft NE swell, the period stretching to 11 seconds, and energy readings hitting 605 and 641. That’s a proper groundswell. Now, a word of caution: with a long period swell like that, a beach/jetty break like Third Peak can get a bit straight and dumpy, but there’ll be some serious juice. This is big, powerful surf – over 5ft and heading towards 8ft, so this is for experienced surfers only. Beginners, stay on the sand.
The wind stays onshore for most of this, so it’s not going to be perfect, but it’s the best we’ve got. The waves are a bit too big and choppy for a clean paddle, and with the onshore wind, this setup might actually look more interesting for a kite surfer than a pure paddle surfer on those days.
So, to sum it up: a long, flat, painful start, then a late surge of real, powerful swell. The only days worth chasing are the 23rd and 24th of September. It’s a long-range call, so keep an eye on it, but it’s got promise. Hang in there.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Sat morning. Warm (max 29°C on Thu morning, min 26°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Sun morning. Warm (max 29°C on Sun morning, min 27°C on Mon morning). 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) | ENE 8 | ENE 7 | ENE 7 | ENE 6 | ESE 8 | E 7 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 5 | E 5 | E 5 | E 5 |
Wave Graph | |||||||||||||||||||||
72 | 44 | 29 | 16 | 46 | 9 | 11 | 12 | 13 | 14 | 14 | 25 | 24 | 23 | 13 | 25 | 27 | 44 | 33 | 24 | 22 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on |
High Tide | 8:07PM0.42m | 8:33AM0.37m | 8:52PM0.39m | 9:21AM0.39m | 9:36PM0.35m | 10:08AM0.39m | 10:18PM0.30m | 10:55AM0.39m | 11:00PM0.25m | 11:42AM0.37m | 11:42PM0.20m | 12:31PM0.35m | 00:26AM0.15m | ||||||||
Low Tide | 1:51PM-0.39m | 2:23AM-0.40m | 2:42PM-0.38m | 3:06AM-0.40m | 3:31PM-0.35m | 3:47AM-0.39m | 4:21PM-0.32m | 4:28AM-0.38m | 5:10PM-0.28m | 5:08AM-0.35m | 6:01PM-0.24m | 5:49AM-0.33m | 6:53PM-0.20m | ||||||||
7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | |
— | 7:31 | — | — | 7:30 | — | — | 7:30 | — | — | 7:29 | — | — | 7:28 | — | — | 7:25 | — | — | 7:24 | — | |
mm | 1 | 1 | 2 | 3 | — | 5 | 4 | — | 3 | 7 | — | 3 | — | 1 | — | 1 | — | — | — | 2 | 2 |
Temp °C | 29 | 29 | 27 | 27 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 28 | 28 | 29 | 28 | 28 | 28 | 28 |
Feels °C | 32 | 31 | 30 | 31 | 33 | 32 | 33 | 31 | 33 | 31 | 32 | 33 | 32 | 33 | 31 | 32 | 32 | 30 | 30 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 7 | ENE 6 | NE 6 | ENE 6 | ESE 4 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 15 | E 9 | E 9 | E 9 |
72 | 44 | 29 | 16 | 10 | 7 | 6 | 12 | 13 | 14 | 14 | 25 | 24 | 23 | 13 | 25 | 27 | 4 | 14 | 14 | 14 | |
Swell 2 Height (m) Direction Period (s) | NE 9 | NE 9 | SE 4 | SE 4 | NE 10 | E 7 | E 8 | ENE 5 | NE 5 | E 4 | E 8 | E 4 | SSE 4 | E 11 | E 11 | E 6 | NE 6 | — | E 14 | E 14 | E 14 |
46 | 27 | 4 | 4 | 4 | 9 | 11 | 3 | 1 | 3 | 1 | 1 | 2 | 3 | 2 | 1 | 1 | — | 4 | 4 | 4 | |
Swell 3 Height (m) Direction Period (s) | ESE 8 | ESE 8 | E 8 | E 8 | ENE 6 | NE 9 | ENE 6 | E 8 | E 8 | — | SE 4 | — | — | N 9 | — | — | E 10 | — | — | NE 7 | E 13 |
13 | 13 | 5 | 12 | 8 | 3 | 4 | 1 | 1 | — | 3 | — | — | 1 | — | — | 17 | — | — | 2 | 4 | |
Wind waves Height (m) Direction Period (s) | ESE 4 | ESE 4 | SE 4 | — | ESE 8 | SE 3 | SE 4 | ESE 4 | SE 4 | SSE 4 | ESE 4 | SSE 4 | — | ESE 3 | SE 3 | ESE 4 | E 4 | E 5 | E 5 | E 5 | E 5 |
7 | 10 | 4 | — | 46 | 5 | 10 | 6 | 4 | 7 | 7 | 2 | — | 1 | 2 | 9 | 9 | 44 | 33 | 24 | 22 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 95 | 1275 | 25 | 218 | 955 | 218 | 1579 | 942 | 219 | 3 | 95 | 95 | 130 | 936 | 219 | 218 | 1844 | 1090 | 1288 | 1342 | 1020 |
Best forecast wave conditions in North Florida | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Sebastian Inlet-Third Peak Surf forecast
The above surf forecast table for Sebastian Inlet-Third Peak provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sebastian Inlet-Third Peak can be found by selecting the local surf guide option on the grey menu. Our Sebastian Inlet-Third Peak 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 (Sebastian Inlet-Third Peak) 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 Sebastian Inlet-Third Peak 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.
Sebastian Inlet-Third Peak is 6 km (4 miles) from the city of Sebastian. If you plan a vacation in North Florida, look for hotels and other accommodation in Sebastian. Sebastian has rooms for a wide range of budgets as well as car hire and transport links.










