Surf Forecasts:
Sebastian Inlet-Third Peak surf forecast from 11 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 2AM (local time) - 1.5ft (0.4m), 8s period, ESE 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 0.4m 8s and forecast to arrive on Sunday (Aug 16) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Aug 15) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sun 16th Aug) | 1.5ft (0.4m) 8s |
Table - best surf conditions forecast for Sebastian Inlet-Third Peak over the next 16 days.
The Lowdown
Right, let's get into it. For our local stretch, it's a quiet patch, no two ways about it. We're looking at Sebastian Inlet-Third Peak, and for the first nine days, from Tuesday the 11th right through to Wednesday the 19th, it's basically a dead zone. The swell is tiny as, mostly 0.6 ft to 1 ft, maxing out at just over 3 ft. The periods are short, and the wave energy numbers are in the weak to moderate range, with the highest being 178. Even that one on the 19th afternoon is flagged as poor surf. That's a rough stretch with nothing to get excited about.
There's a tiny window of hope on Thursday the 20th. The morning is glassy with a light south wind, and the water temp is a bit cooler than normal for this time of year at 83°. We're looking at a 2 ft east swell with a period of 11 seconds. That long period will mean long waits between sets, but the ones that come through should have a bit more push and shape. The energy reading is low at 82, but the forecast says "surfable waves but very ordinary conditions". Friday the 21st is much the same in the morning, glassy with a 2 ft swell, but the period drops to 9 seconds, so it'll be a bit more disorganized. Neither of these is a standout; they're just small clean waves for a longboard or a funshape.
After that, from the 22nd through to the 26th of August, we're back to tiny, weak, and mostly poor conditions. The afternoons are frequently cross-onshore and chopped up.
So, the blunt truth? There are no true standouts in this whole 16-day period. The best you can hope for is a couple of sleepy mornings around the 20th and 21st for some clean, knee-high dribblers. The crowd at Third Peak can get busy often, but with this little energy, it'll be a ghost town. It's just one of those classic flat spells. Don't rush.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Thu night. Warm (max 32°C on Wed afternoon, min 26°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Fri afternoon. Warm (max 31°C on Fri afternoon, min 26°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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) | ESE 7 | E 6 | E 6 | E 6 | ESE 6 | E 7 | E 7 | SE 7 | E 7 | SE 4 | E 9 | SE 4 | ENE 12 | ESE 5 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 15 | 13 | 7 | 3 | 8 | 4 | 4 | 13 | 4 | 6 | 6 | 7 | 14 | 15 | 21 | 19 | 20 | 11 | 12 | 12 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | off | cross-off | cross | off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | glassy | cross | cross-on | cross |
High Tide | 7:41PM0.48m | 7:59AM0.33m | 8:28PM0.47m | 8:49AM0.35m | 9:14PM0.45m | 9:38AM0.37m | 9:59PM0.40m | 10:27AM0.37m | 10:44PM0.35m | 11:16AM0.36m | 11:29PM0.29m | 12:08PM0.35m | 00:15AM0.23m | ||||||||
Low Tide | 1:12PM-0.43m | 2:01AM-0.38m | 2:04PM-0.43m | 2:47AM-0.39m | 2:55PM-0.41m | 3:31AM-0.40m | 3:45PM-0.39m | 4:15AM-0.39m | 4:36PM-0.35m | 4:58AM-0.37m | 5:28PM-0.30m | 5:41AM-0.35m | 6:22PM-0.26m | ||||||||
 |  |  | | | | | | | | |  |  | |  | | | | | | | |
 | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 8:02 | — | — | 8:02 | — | — | 8:01 | — | — | 8:00 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — |
mm | 1 | — | 1 | — | — | 3 | — | — | 3 | — | 2 | 2 | — | — | — | — | — | — | — | 1 | — |
Temp °C | 29 | 30 | 29 | 29 | 32 | 30 | 30 | 32 | 29 | 29 | 31 | 29 | 29 | 29 | 29 | 28 | 30 | 29 | 28 | 30 | 28 |
Feels °C | 33 | 33 | 32 | 32 | 36 | 33 | 33 | 36 | 30 | 32 | 34 | 30 | 33 | 32 | 32 | 31 | 33 | 31 | 31 | 33 | 32 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | E 6 | E 6 | E 6 | E 9 | E 7 | E 7 | E 10 | E 7 | SE 4 | E 9 | E 9 | SE 4 | E 7 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 15 | 13 | 7 | 3 | 2 | 4 | 4 | 2 | 4 | 6 | 6 | 1 | 4 | 4 | 21 | 19 | 20 | 11 | 12 | 12 | 12 |
Swell 2 Height (m) Direction Period (s) | NE 9 | NE 10 | E 10 | SSE 4 | — | E 8 | SSE 4 | — | E 9 | E 9 | E 13 | NE 13 | E 4 | NE 11 | NE 11 | SE 5 | NE 11 | E 10 | SSE 3 | NE 6 | NE 5 |
| kJ | 3 | 4 | 2 | 1 | — | 1 | 1 | — | 2 | 2 | 4 | 6 | 3 | 5 | 5 | 5 | 5 | 2 | 1 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | E 10 | E 9 | — | E 11 | NW 4 | E 10 | NE 8 | E 7 | E 10 | E 7 | ENE 12 | E 9 | — | NE 11 | NE 10 | E 10 | NE 6 | E 9 | S 5 |
| kJ | — | — | 2 | 2 | — | 2 | 1 | 2 | 2 | 1 | 2 | 1 | 14 | 2 | — | 5 | 4 | 2 | 2 | 2 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | SSE 3 | — | ESE 6 | S 3 | — | SE 7 | SSE 3 | — | SE 4 | SE 4 | SE 4 | ESE 5 | SSE 5 | — | SE 5 | SSE 3 | — | — | — |
| kJ | — | — | 1 | — | 8 | 4 | — | 13 | 4 | — | 4 | 7 | 14 | 15 | 9 | — | 8 | 4 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1817 | 1817 | 1329 | 375 | 1817 | 838 | 1140 | 1817 | 1353 | 1140 | 942 | 619 | 1434 | 1614 | 129 | 129 | 155 | 129 | 288 | 375 | 218 |
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.
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