Surf Forecasts:
Sebastian Inlet-Third Peak surf forecast from 6 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 5AM (local time) - 2.5ft (0.8m), 9s period, ENE swell with glassy winds.
- Most powerful swell: Wednesday 9 Sep, 11AM (local time) - 3.5ft (1.0m), 8s period, ENE swell with 147 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 5AM (local time) - 2.5ft (0.8m), 9s 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 Wednesday (Sep 09) at 5AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.5m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Sebastian Inlet-Third Peak in the next 16 days are 1.0m 8s and forecast to arrive on Wednesday (Sep 09) at 11AM. 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 Sunday (Sep 06) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 9th Sep) | 2.5ft (0.8m) 9s |
| Best Surf | 5AM (Wed 9th Sep) | 2.5ft (0.8m) 9s |
| Most Powerful | 11AM (Wed 9th Sep) | 3.5ft (1.0m) 8s |
Table - best surf conditions forecast for Sebastian Inlet-Third Peak over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – this 16-day stretch for Sebastian Inlet-Third Peak is a tough one. We're looking at a long, flat spell. Honestly, there's no real surf to speak of for the entire forecast period. The wave energy stays critically low, mostly in the single digits or just barely cracking 100 for a couple of moments, which is nothing to get excited about. The best we see is a moderate energy reading of 161 on Wednesday the 9th and again on Thursday the 10th, but the swell is short-period (8 seconds) and onshore, so it's just messy, junky little waves.
For the first week, from Sunday the 6th through to Saturday the 12th of September, the swell is tiny – we're talking knee-high at best, with wind often cross or onshore. There's a glassy morning on Tuesday the 8th with a tiny 1ft swell from the NE and only a 5 km/h north wind, but the period is a short 7 seconds and it's still weak (energy 35). The water temp is a warm 82°F, which is about average for this time of year. Then on Thursday the 10th, the morning shows some slightly bigger energy (108) and a clean cross-off wind from the SSE, but the swell is still only 3ft from the ENE with an 8-second period. That's as close to "surfable" as it gets, and even then it's a 1-out-of-10 score. Not worth paddling out for.
The second week is more of the same. From Sunday the 13th of September right through to Monday the 21st of September, it's flat. The swell never pushes above 2ft, the energy stays weak (single to low double digits), and the wind is a constant issue – either onshore, cross-onshore, or just messy. There's a glassy morning on the 15th and again on the 21st, but with only 1ft to 1ft of swell, you're just sitting on your board.
Honestly, this is a blank run for the area. Sebastian Inlet can be consistent, but not this time. The setup with the consistent onshore winds and tiny weak swell would actually be more interesting for kite surfing than paddle surfing. There's nothing to recommend. I hate to say it, but leave the boards at home for a couple of weeks. Forecasts can change, but right now there's nothing on the horizon.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Mon night. Warm (max 32°C on Mon afternoon, min 25°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 34mm), heaviest during Wed night. Warm (max 30°C on Thu afternoon, min 27°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 9 | E 8 | E 8 | E 8 | NE 7 | NE 6 | ENE 10 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 19 | 6 | 13 | 12 | 12 | 19 | 51 | 36 | 147 | 147 | 105 | 95 | 67 | 50 | 31 | 19 | 9 | 11 | 11 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | off | cross | glassy | glassy | on | cross-on | cross-on | cross-on | cross | cross-off | cross | cross-off | cross-off | cross | glassy | cross-off | cross | cross |
High Tide | 4:38PM0.43m | 4:54AM0.25m | 5:35PM0.44m | 5:55AM0.28m | 6:29PM0.44m | 6:51AM0.32m | 7:20PM0.44m | 7:44AM0.35m | 8:07PM0.42m | 8:33AM0.37m | 8:52PM0.39m | 9:21AM0.39m | 9:36PM0.35m | ||||||||
Low Tide | 9:57AM-0.38m | 11:04PM-0.30m | 11:00AM-0.38m | 00:00AM-0.33m | 12:00PM-0.39m | 00:51AM-0.36m | 12:57PM-0.40m | 1:38AM-0.38m | 1:51PM-0.39m | 2:23AM-0.40m | 2:42PM-0.38m | 3:06AM-0.40m | 3:31PM-0.35m | 3:47AM-0.39m | |||||||
 |  |  | | | | |  | |  | | | | | | | | | | | | |
 | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — |
 | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | — | 7:31 | — | — | 7:30 | — | — | 7:30 | — |
mm | — | — | 2 | — | — | 14 | — | — | 1 | 1 | 1 | 12 | 4 | 4 | 4 | — | 3 | 5 | — | — | 6 |
Temp °C | 29 | 31 | 29 | 29 | 32 | 26 | 28 | 28 | 28 | 28 | 29 | 28 | 29 | 30 | 30 | 28 | 30 | 29 | 29 | 29 | 29 |
Feels °C | 33 | 35 | 31 | 32 | 36 | 26 | 32 | 30 | 31 | 31 | 31 | 31 | 33 | 33 | 32 | 31 | 33 | 31 | 33 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | E 8 | NE 6 | E 7 | E 8 | E 8 | E 8 | NE 7 | NE 6 | NE 6 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | E 8 | E 8 | E 8 |
| kJ | 10 | 1 | 4 | 13 | 12 | 12 | 19 | 51 | 28 | 147 | 147 | 105 | 95 | 67 | 50 | 31 | 19 | 9 | 11 | 11 | 12 |
Swell 2 Height (m) Direction Period (s) | — | E 10 | E 9 | — | NE 7 | E 10 | E 8 | ENE 10 | ENE 10 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | ESE 8 | SE 4 | E 7 | E 7 | ENE 7 | ENE 6 | ENE 6 |
| kJ | — | 7 | 6 | — | 2 | 2 | 5 | 11 | 36 | 14 | 14 | 14 | 13 | 5 | 12 | 2 | 4 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | NE 6 | — | E 6 | — | — | NE 6 | ENE 10 | E 8 | E 8 | — | — | — | — | — | — | — | NNE 9 | — | — | E 8 | — |
| kJ | 1 | — | 1 | — | — | 2 | 11 | 5 | 6 | — | — | — | — | — | — | — | 8 | — | — | 1 | — |
Wind waves Height (m) Direction Period (s) | — | ESE 8 | S 3 | — | — | SSE 3 | — | — | — | — | — | SE 3 | — | ESE 3 | SE 3 | — | SE 3 | SE 3 | — | SE 3 | SE 3 |
| kJ | — | 19 | 3 | — | — | 1 | — | — | — | — | — | 2 | — | 3 | 3 | — | 2 | 1 | — | 2 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 375 | 464 | 489 | 375 | 375 | 218 | 3 | 375 | 42 | 622 | 450 | 538 | 0 | 1438 | 0 | 3 | 955 | 780 | 942 | 1817 | 271 |
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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