Surf Forecasts:
Sebastian Inlet-Third Peak surf forecast from 19 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 5PM (local time) - 1ft (0.3m), 9s period, E swell with 15 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 0.3m 9s and forecast to arrive on Wednesday (Aug 19) at 5PM. 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 Sunday (Aug 23) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Wed 19th Aug) | 1ft (0.3m) 9s |
Table - best surf conditions forecast for Sebastian Inlet-Third Peak over the next 16 days.
The Lowdown
G'day, I'm Rusty. Let's have a look at what's on the menu for the next couple of weeks here at Sebastian Inlet-Third Peak. Straight up, I gotta be real with you – it's a flat spell, and a long one at that. We're looking at a solid stretch of tiny, weak surf with barely any energy in the water, and it's gonna be that way for days.
The pattern is clear: we're stuck in a run of small, short-period east swell, with heights barely pushing 1 ft to 2 ft. The combined energy is in the low double digits for most of the first week, like 21 (weak energy) on Wednesday morning, dropping to 12 (weak energy) by Friday morning. That's about as weak as it gets. The water temp is sitting at a warm 85°F with no anomaly, so it's just normal for this time of year – nothing special there.
The best we can hope for is a bit of glassy or offshore wind to make the most of the ankle-biters. Wednesday morning (19th August) has a light WNW cross-off breeze at 6 mph, keeping things clean, but the swell is only 1 ft at 9 seconds – not enough to get excited about. Thursday morning (20th August) sees a glassy 3 mph west wind and 1 ft swell, but again, it's just a glorified bathtub. Saturday morning (22nd August) has a clean 6 mph south-southwest offshore wind, and Sunday morning (23rd August) is similar with a light southwest offshore, but the swell is still 1 ft. It's frustrating.
There's a gap of poor conditions all the way through until the end of August. The first hint of anything surfable shows up on the morning of Sunday, 30th August, with a score of 1/10. That morning we get a glassy 3 mph southeast wind and 2 ft east swell at 9 seconds, with combined energy still low at 44 (weak energy). The comment says "surfable waves but very ordinary conditions," and I'd agree – it's a tiny ripple, but at least it's clean. Monday morning (31st August) sees a slight bump to 3 ft from the northeast, but it's onshore wind at 6 mph, and the period is a short 6 seconds, so it's junk.
The second week is more of the same. The best-looking window is the morning of Wednesday, 2nd September, with a glassy 3 mph north wind, 2 ft east swell, and a period of 11 seconds. That's a longer period, which gives a bit more shape, and the combined energy is 78 (still weak energy). It's not a stand-out, but it's the cleanest we'll see. Thursday morning, 3rd September, is also glassy with a calm wind and 2 ft east swell at 10 seconds – again, just barely surfable.
Honestly, there's no standout session here. The whole 16 days is a write-off for any decent waves. If you're desperate, the glassy mornings with 2 ft swell are the only option, but bring a longboard and low expectations. The setup is so weak and the period is short, it's more interesting for a paddle on a SUP than a proper surf. Keep an eye on the forecasts, though – it rarely stays this flat for long.
Rusty
Short Range ForecastModerate rain (total 19mm), heaviest on Wed night. Warm (max 32°C on Wed afternoon, min 25°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Mon night. Warm (max 31°C on Sat afternoon, min 26°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 11 | SE 4 | E 10 |
Wave Graph | |||||||||||||||||||||
16 | 15 | 14 | 13 | 12 | 12 | 12 | 12 | 13 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 5 | 5 | 9 | 8 | 9 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-on | off | off | cross | cross-off | cross-off | cross | off | off | cross | cross-off | cross-off | cross | cross-off | cross | cross | cross |
High Tide | 1:57PM0.32m | 1:56AM0.13m | 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 | ||||||||
Low Tide | 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 | 10:43AM-0.26m | 00:03AM-0.19m | 11:33AM-0.27m | 00:41AM-0.21m | 12:21PM-0.29m | 1:16AM-0.24m | ||||||||
6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | |
— | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | |
mm | — | — | 10 | — | 1 | 2 | 2 | — | 4 | — | 1 | 1 | — | — | 3 | — | 1 | 8 | 2 | 1 | 2 |
Temp °C | 30 | 32 | 30 | 28 | 30 | 29 | 28 | 31 | 31 | 28 | 31 | 29 | 28 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 33 | 35 | 35 | 31 | 32 | 31 | 30 | 33 | 32 | 31 | 34 | 29 | 31 | 32 | 30 | 32 | 30 | 31 | 33 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 8 | E 8 | SSE 3 | E 8 | E 8 | SE 4 | SE 4 | E 9 | E 8 | E 8 | E 8 | SE 4 | SE 4 | E 8 | E 8 | E 8 | E 8 | E 7 |
16 | 15 | 14 | 13 | 12 | 2 | 12 | 12 | 3 | 3 | 14 | 13 | 13 | 12 | 7 | 2 | 5 | 5 | 5 | 5 | 4 | |
Swell 2 Height (m) Direction Period (s) | ENE 6 | ENE 6 | NE 6 | — | NE 5 | E 8 | SE 4 | E 15 | E 8 | E 9 | SSE 4 | ESE 4 | SE 4 | E 12 | E 8 | E 8 | E 11 | E 11 | E 11 | E 11 | E 10 |
4 | 3 | 1 | — | 1 | 12 | 2 | 4 | 13 | 14 | 1 | 1 | 2 | 3 | 12 | 11 | 3 | 2 | 2 | 2 | 2 | |
Swell 3 Height (m) Direction Period (s) | SE 4 | — | — | NE 6 | — | E 5 | — | — | E 14 | E 14 | E 13 | E 13 | E 12 | — | E 12 | E 12 | NE 7 | E 8 | E 11 | ENE 8 | E 10 |
1 | — | — | 1 | — | 1 | — | — | 4 | 4 | 3 | 3 | 3 | — | 3 | 3 | 2 | 1 | 9 | 6 | 9 | |
Wind waves Height (m) Direction Period (s) | — | SE 2 | S 3 | — | — | — | — | SE 4 | — | S 4 | — | — | — | SE 4 | — | S 4 | SE 3 | SSE 4 | SE 4 | SE 4 | SE 4 |
— | 1 | 1 | — | — | — | — | 7 | — | 8 | — | — | — | 5 | — | 3 | 2 | 8 | 6 | 8 | 6 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 219 | 375 | 464 | 524 | 955 | 955 | 1253 | 955 | 375 | 352 | 218 | 218 | 955 | 780 | 955 | 498 | 1644 | 164 | 218 | 955 | 198 |
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.











