Surf Forecasts:
Sebastian Inlet-Third Peak surf forecast from 20 Aug 2026:
- Most powerful swell: Thursday 27 Aug, 2PM (local time) - 0.5ft (0.2m), 15s period, ENE swell with 21 kJ wave energy.
Best Forecast Surf Conditions for Sebastian Inlet-Third Peak this week:
The most powerful waves expected at Sebastian Inlet-Third Peak in the next 16 days are 0.2m 15s and forecast to arrive on Thursday (Aug 27) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (Aug 21) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Thu 27th Aug) | 0.5ft (0.2m) 15s |
Table - best surf conditions forecast for Sebastian Inlet-Third Peak over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what the Atlantic's got cooking for us.
Honestly, it's a pretty flat spell we're looking at. For the next week and a half, from Thursday the 20th of August right through to early September, we're staring down a whole lot of nothing. We're talking tiny ankle-snappers at best, and most of that time the conditions are just as messy. We've got a solid 8-day stretch there where there's simply nothing worth paddling out for. The combined wave energy is in the dumps, mostly single digits and low double digits – we're seeing readings like 14, 12, 20 – that's weak, uninspiring stuff. The swell is hanging around a pathetic 0.7ft to 1ft with short, weak 7 to 9-second periods. It’s a tough go.
The water temperature at Sebastian Inlet-Third Peak is sitting at about 85°F, which is pretty spot on for this time of year, so at least the wait will be warm.
Finally, around Friday the 28th of August, we start to see a tiny pulse. The morning of the 28th shows a slight bump to 1ft from the E with a clean little 9-second period. It's still weak (wave energy is a 44) but with a light S breeze keeping it clean, it's at least surfable. You’ll be on a longboard, but you might find a fun little crumbler. This is the best we've got, but "best" is a relative term here. It's an intermediate spot, and while it's consistent, crowds are often, so don't expect it to be empty with even this small bump.
That little whisper fades fast. The 29th and 30th see a bit more east in the swell but the wind turns onshore, chopping it up. The whole second week into early September is more of the same – tiny swells and onshore or cross-shore winds. The combined energy barely cracks 40. It's pretty much a write-off for a proper surf session. A few of those mornings are glassy, but there’s simply no swell to ride. This is just a dead period for the break.
Signing off, Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Thu night. Warm (max 32°C on Fri afternoon, min 26°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sun night. Warm (max 30°C on Sun afternoon, min 26°C on Mon morning). Wind will be generally light. | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 8 | E 8 | E 12 | E 8 | E 8 | ESE 11 | E 8 | E 11 | SE 4 | SE 4 | SE 4 | ESE 4 | E 16 |
Wave Graph | ||||||||||||||||||||
12 | 12 | 12 | 12 | 13 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 12 | 5 | 9 | 7 | 4 | 6 | 6 | 5 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | off | cross | off | off | cross | off | off | cross | cross-off | glassy | cross | cross-off | glassy | cross-on | cross-off | cross-off | cross-on | cross-off |
High Tide | 2:55PM0.31m | 2:52AM0.11m | 3:52PM0.31m | 3:50AM0.09m | 4:45PM0.31m | 4:45AM0.10m | 5:33PM0.32m | 5:35AM0.13m | 6:15PM0.33m | 6:21AM0.16m | 6:55PM0.34m | 7:05AM0.21m | 7:32PM0.34m | |||||||
Low Tide | 9:26PM-0.16m | 8:56AM-0.26m | 10:27PM-0.16m | 9:50AM-0.26m | 11:19PM-0.17m | 10:43AM-0.26m | 00:03AM-0.19m | 11:33AM-0.27m | 00:41AM-0.21m | 12:21PM-0.29m | 1:16AM-0.24m | 1:06PM-0.30m | 1:50AM-0.28m | |||||||
— | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | |
7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — | |
mm | 3 | 6 | — | 1 | 2 | — | — | 1 | — | — | 2 | — | — | — | — | 1 | 1 | — | — | 2 |
Temp °C | 31 | 29 | 28 | 32 | 30 | 28 | 31 | 29 | 28 | 30 | 29 | 28 | 29 | 28 | 28 | 29 | 28 | 28 | 30 | 29 |
Feels °C | 33 | 31 | 31 | 35 | 30 | 32 | 34 | 30 | 31 | 32 | 30 | 32 | 31 | 30 | 33 | 31 | 30 | 32 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | SE 4 | SE 4 | E 8 | SE 4 | E 9 | E 8 | SE 4 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | SE 4 | E 7 | E 7 |
12 | 12 | 4 | 3 | 13 | 2 | 14 | 13 | 4 | 12 | 12 | 11 | 5 | 5 | 5 | 5 | 4 | 6 | 4 | 4 | |
Swell 2 Height (m) Direction Period (s) | NE 5 | E 5 | E 8 | E 8 | E 14 | E 9 | E 13 | E 13 | E 8 | E 12 | E 12 | ESE 4 | E 11 | E 11 | E 11 | E 11 | E 10 | E 7 | E 10 | E 16 |
1 | 1 | 12 | 12 | 4 | 14 | 3 | 3 | 13 | 3 | 3 | 1 | 3 | 2 | 2 | 2 | 2 | 4 | 2 | 5 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 15 | E 14 | E 14 | E 13 | — | E 12 | E 12 | — | S 4 | ESE 11 | E 9 | E 11 | E 8 | E 10 | E 10 | E 7 | — |
— | — | — | 4 | 4 | 4 | 14 | — | 3 | 11 | — | 1 | 12 | 1 | 9 | 5 | 2 | 2 | 1 | — | |
Wind waves Height (m) Direction Period (s) | — | SE 3 | — | — | SSE 4 | — | SE 4 | SSE 4 | — | SE 4 | SE 3 | — | ESE 4 | SE 3 | SE 4 | SE 4 | SE 4 | — | ESE 4 | SE 3 |
— | 2 | — | — | 8 | — | 2 | 8 | — | 4 | 5 | — | 1 | 2 | 3 | 7 | 4 | — | 6 | 6 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 375 | 1394 | 955 | 1817 | 548 | 619 | 288 | 218 | 619 | 218 | 219 | 729 | 942 | 218 | 218 | 780 | 218 | 619 | 955 | 219 |
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.











