Surf Forecasts:
Sebastian Inlet-Third Peak surf forecast from 16 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 5PM (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 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 3s period and expected on Tuesday (Aug 18) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (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
Alright, let me tell you how things are looking for our stretch of coast. I've been staring at the charts and, honestly, there’s not a whole lot to get excited about. The next couple of weeks are going to be a real waiting game. The swell window is looking pretty quiet, with only small, short-period wind swell from the east showing up. It’s going to be a long stretch of small, weak waves.
Right now, into the start of the 16-day run, we are looking at a big gap. There’s basically nothing worth paddling out for. The water temp here is sitting at 84°F which is about average for this time of year, at least the water is warm for a float.
Sebastian Inlet-Third Peak is the only spot on the cards, but it’s going to be a tough one. For the next week and a half, from Sunday the 16th all the way through to Saturday the 29th of August, we are dealing with tiny surf. The swell is mostly 1.0ft to 2ft from the east, with a weak period of 8 to 9 seconds. The combined wave energy is very weak, barely cracking 10 to 30 in the early part. Winds are a mixed bag. There are some nice, clean, glassy mornings with light offshore breezes from the west-southwest, like on Wednesday the 19th and Saturday the 22nd, but the swell just isn’t there to make it worthwhile. Afternoons tend to get a seabreeze from the east or southeast, which chops things up.
Now, peeking ahead towards the very end of the month and into the start of September, things get a little more interesting, but it’s a long way out. On Thursday the 27th of August, we see a jump in energy. The swell bumps up to 2ft to 2ft from the east, and the period stretches out to 12 seconds. That’s a proper groundswell. The combined energy hits 123 to 148, a noticeable step up in power. It is a long-period swell for a beach/jetty setup, so expect it to be a bit walled and straight, but there will be more push. The downside is the wind is cross-onshore from the east-northeast, so it won’t be perfect, but for that part of the coast, it’s the most surf we’ll have seen in a while.
Friday the 28th looks similar, with 2ft east swell at 10 seconds, but lighter winds. The energy drops a touch but is still moderate.
Honestly, for the first two weeks, you’re better off checking the long-range forecast for the last few days of August. That window around Thursday the 27th and Friday the 28th is the only real standout, but it’s still small and onshore. Don’t expect any magic.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue night. Warm (max 32°C on Mon afternoon, min 26°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Fri night. Warm (max 33°C on Fri afternoon, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | E 8 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 11 | E 10 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 13 |
Wave Graph | |||||||||||||||||||||
12 | 21 | 11 | 10 | 11 | 12 | 12 | 20 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 13 | 12 | 12 | 15 | 14 | 13 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | off | cross-off | cross | cross-off | cross-off | cross | cross-off | off | cross | glassy | cross-off | cross | off | off | cross | off | off | cross | off |
High Tide | 11:16AM0.36m | 11:29PM0.29m | 12:08PM0.35m | 00:15AM0.23m | 1:01PM0.33m | 1:04AM0.18m | 1:57PM0.32m | 1:56AM0.13m | 2:55PM0.31m | 2:52AM0.11m | 3:52PM0.31m | 3:50AM0.09m | 4:45PM0.31m | 4:45AM0.10m | |||||||
Low Tide | 5:28PM-0.30m | 5:41AM-0.35m | 6:22PM-0.26m | 6:26AM-0.32m | 7:20PM-0.21m | 7:13AM-0.30m | 8:23PM-0.18m | 8:03AM-0.27m | 9:26PM-0.16m | 8:56AM-0.26m | 10:27PM-0.16m | 9:50AM-0.26m | 11:19PM-0.17m | ||||||||
6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | |
— | 7:59 | — | — | 7:58 | — | — | 7:57 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | |
mm | — | — | — | — | — | — | — | — | 1 | — | — | 3 | — | 1 | 1 | — | — | 7 | — | 1 | 6 |
Temp °C | 29 | 30 | 29 | 30 | 32 | 30 | 30 | 32 | 31 | 30 | 32 | 31 | 29 | 32 | 31 | 29 | 33 | 31 | 28 | 31 | 29 |
Feels °C | 34 | 33 | 31 | 33 | 36 | 32 | 34 | 36 | 34 | 34 | 35 | 34 | 32 | 36 | 34 | 33 | 35 | 33 | 31 | 34 | 30 |
Swell 1 Height (m) Direction Period (s) | E 8 | NE 10 | E 8 | E 8 | E 8 | E 8 | E 8 | E 11 | SSE 3 | E 9 | E 9 | SE 3 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 8 |
12 | 4 | 11 | 10 | 11 | 12 | 12 | 20 | 2 | 16 | 15 | 3 | 13 | 12 | 12 | 13 | 12 | 12 | 15 | 14 | 13 | |
Swell 2 Height (m) Direction Period (s) | SE 4 | SSE 5 | NE 10 | SSE 3 | E 9 | SSE 3 | SSE 4 | NE 6 | E 10 | NE 6 | ENE 6 | E 9 | SSE 4 | — | E 5 | SE 4 | E 15 | E 14 | E 14 | E 13 | E 13 |
1 | 4 | 4 | 1 | 2 | 1 | 1 | 1 | 17 | 6 | 3 | 14 | 1 | — | 1 | 2 | 4 | 4 | 4 | 3 | 3 | |
Swell 3 Height (m) Direction Period (s) | NE 11 | NE 10 | — | — | NE 9 | E 9 | E 11 | — | NE 7 | S 4 | NE 7 | ENE 6 | NE 6 | NE 6 | E 8 | — | — | E 10 | E 13 | E 13 | E 13 |
5 | 4 | — | — | 3 | 2 | 2 | — | 2 | 1 | 2 | 3 | 1 | 1 | 1 | — | — | 2 | 4 | 3 | 13 | |
Wind waves Height (m) Direction Period (s) | — | ESE 8 | SE 3 | — | SSE 4 | SW 2 | — | SSE 4 | — | — | — | — | — | — | SSE 3 | — | SE 2 | SSE 3 | SE 4 | SE 3 | SE 3 |
— | 21 | 2 | — | 1 | 1 | — | 1 | — | — | — | — | — | — | 2 | — | 2 | 5 | 4 | 5 | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 218 | 1578 | 1167 | 352 | 352 | 352 | 129 | 129 | 3 | 129 | 375 | 464 | 375 | 375 | 680 | 1817 | 955 | 780 | 780 | 729 | 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.











