Surf Forecasts:
Sebastian Inlet-First Peak surf forecast from 18 Aug 2026:
- Most powerful swell: Tuesday 18 Aug, 5PM (local time) - 1ft (0.3m), 11s period, E swell with 20 kJ wave energy.
Best Forecast Surf Conditions for Sebastian Inlet-First Peak this week:
The most powerful waves expected at Sebastian Inlet-First Peak in the next 16 days are 0.3m 11s and forecast to arrive on Tuesday (Aug 18) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Aug 23) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Tue 18th Aug) | 1ft (0.3m) 11s |
Table - best surf conditions forecast for Sebastian Inlet-First Peak over the next 16 days.
The Lowdown
Alright, Rusty here again, this time in feet and miles. For the next week or so, it’s pretty quiet out there. We’re looking at tiny 1ft waves from the east, with swell periods mostly around 8 to 9 seconds, and a combined energy that’s barely registering—most readings are between 8 and 44 (weak energy). The mornings are clean with some light cross-off or offshore winds, but the waves are just too small to bother with. By the afternoon, the seabreeze from the ESE churns it up, making it choppy.
There’s a long gap of several days with nothing rideable. But keep an eye on Wednesday, August 26. That morning, we get a little pulse: 1ft from the east, with a long period of 16 seconds, and the combined energy climbs to 106 (moderate). That’s a groundswell—long lines, but at a beach break it might not have much shape. With a light W wind, it’s clean, but still small. The next few days see similar 2ft to 2ft waves, periods dropping to 10–12 seconds, and combined energy between 59 and 117 (moderate). The mornings remain clean, but the waves are just ordinary.
The best window is Thursday morning, August 27. Swell is 2ft from the east, period of 12 seconds, combined energy of 93 (weak to moderate). The wind is light from the west, making for glassy conditions at Sebastian Inlet-First Peak. It’s small, but clean enough for a longboard. By the afternoon, the wind shifts offshore from the SW, keeping it smooth.
No big swell is coming, and crowds are possible here but probably thin given the flat spell. The spot is very consistent, so this is just a slow period. It’ll come around.
- Rusty
Short Range ForecastLight rain (total 8mm), mostly falling on Tue night. Warm (max 33°C on Mon night, min 26°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Sat night. Warm (max 32°C on Fri afternoon, min 24°C on Sun morning). Wind will be generally light. | ||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 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 8 | SE 5 | SE 4 | SE 4 |
Wave Graph  | |||||||||||||||||||
 kJ | 12 | 12 | 20 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 12 | 12 | 13 | 14 | 14 | 13 | 12 | 18 | 12 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-on | cross-off | cross-off | cross-on | off | off | cross-off | glassy | off | cross | cross-off |
High Tide | 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 | 5:33PM0.32m | |||||||
Low Tide | 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 | 10:43AM-0.26m | 00:03AM-0.19m | |||||||
 |  |  | | | | | | | | |  |  | | | | | | | |
 | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | 7:58 | — | 7:57 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — |
mm | 1 | — | — | 5 | — | — | 2 | — | — | 1 | — | 1 | — | — | — | 3 | — | — | 6 |
Temp °C | 33 | 30 | 33 | 30 | 30 | 32 | 30 | 29 | 32 | 30 | 29 | 32 | 29 | 29 | 32 | 28 | 28 | 31 | 27 |
Feels °C | 35 | 33 | 36 | 31 | 34 | 36 | 33 | 32 | 36 | 32 | 33 | 36 | 29 | 31 | 34 | 30 | 30 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | SE 4 | E 8 | E 11 | E 10 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | SE 4 | E 8 | E 8 | SE 4 | E 9 | SE 4 | SE 5 | E 8 | SE 4 |
| kJ | 3 | 12 | 20 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 4 | 12 | 13 | 4 | 14 | 8 | 10 | 12 | 12 |
Swell 2 Height (m) Direction Period (s) | E 8 | SE 4 | — | NE 5 | NNW 3 | ENE 6 | SSE 3 | SSE 3 | NE 5 | E 5 | E 8 | SSE 4 | E 14 | E 9 | E 13 | E 8 | E 8 | E 12 | E 8 |
| kJ | 12 | 1 | — | 1 | 1 | 3 | 2 | 1 | 1 | 1 | 12 | 2 | 4 | 14 | 3 | 13 | 12 | 3 | 12 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 11 | NE 6 | NE 7 | ENE 6 | — | NE 6 | NE 6 | — | — | — | E 15 | E 14 | E 14 | E 13 | E 13 | E 12 | E 12 | E 12 |
| kJ | 2 | 2 | 1 | 2 | 4 | — | 1 | 1 | — | — | — | 4 | 4 | 4 | 14 | 3 | 3 | 11 | 3 |
Wind waves Height (m) Direction Period (s) | S 4 | NW 3 | — | N 3 | NW 4 | — | SSW 3 | — | — | SSE 4 | — | SE 4 | S 4 | WSW 3 | SE 3 | SSW 4 | SSE 5 | SE 4 | SSE 4 |
| kJ | 7 | 1 | — | 4 | 2 | — | 3 | — | — | 5 | — | 1 | 7 | 1 | 3 | 5 | 19 | 18 | 21 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 353 | 128 | 93 | 128 | 217 | 376 | 483 | 957 | 1818 | 1344 | 483 | 269 | 269 | 678 | 22 | 3 | 3 | 145 | 1 |
Best forecast wave conditions in North Florida | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Sebastian Inlet-First Peak Surf forecast
The above surf forecast table for Sebastian Inlet-First 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-First Peak can be found by selecting the local surf guide option on the grey menu. Our Sebastian Inlet-First 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-First 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-First 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-First Peak is 7 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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