Surf Forecasts:
Sebastian Inlet-Third Peak surf forecast from 13 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 2PM (local time) - 1ft (0.3m), 12s period, E swell with glassy winds.
- Most powerful swell: Tuesday 18 Aug, 5PM (local time) - 1.5ft (0.4m), 12s period, E swell with 44 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 2PM (local time) - 1ft (0.3m), 12s period with E 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 Tuesday (Aug 18) at 2PM. The primary swell is predicted to be 0.3m and 12s period with a secondary swell of 0.3m and 8s. Another secondary swell of 0.4m and 6s is also forecast. 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 0.4m 12s and forecast to arrive on Tuesday (Aug 18) 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 4s period and expected on Saturday (Aug 15) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Tue 18th Aug) | 1ft (0.3m) 12s |
| Best Surf | 2PM (Tue 18th Aug) | 1ft (0.3m) 12s |
| Most Powerful | 5PM (Tue 18th Aug) | 1.5ft (0.4m) 12s |
Table - best surf conditions forecast for Sebastian Inlet-Third Peak over the next 16 days.
The Lowdown
Alright, let’s break it down. Straight up – this isn’t a week to get excited. The surf at Sebastian Inlet-Third Peak (beach/jetty) is looking pretty weak for the full 16-day run. Swell energy is low, readings all under 100, and we’ve got mostly onshore and cross-shore winds mucking it up.
Thursday, August 13th, we’re looking at a 0.7ft east swell with a short 7-second period. Morning is clean enough with a light cross-offshore WNW breeze at 3 mph, but it’s still poor surf. Afternoon gets choppy with an ESE wind picking up to 9 mph.
Friday the 14th and Saturday the 15th are more of the same – tiny waves, weak energy, and unfriendly wind. Sunday the 16th morning offers a glassy 0.3m (call it 1ft) east swell with an 8-second period and a light SSW breeze at 3 mph. Clean, but tiny.
The first real chance is Wednesday morning, August 19th. Swell nudges up to 0.5m (2ft) from the east, 10-second period, with a light cross-offshore SSE wind at 6 mph. Energy reads 58 – still weak – but conditions are clean. Surfable but very ordinary. That’s the pick of the first 10 days.
The second week stays small and choppy. Mornings on August 22nd, 25th, and 26th offer glassy conditions with 0.4m to 0.6m (1 to 2ft) east swell, but the period is short and energy is low. Clean but gutless.
Friday, August 28th morning finally shows a clean 0.4m (1ft) east swell, 8-second period, with a light offshore SW breeze at 6 mph. Again, small and clean but nothing to plan a trip around.
Bottom line: with the swell this small, wind mostly messy, and energy never getting strong, this is a longboard or stay-home stretch. The jetty might give you a little something on the cleanest mornings, but there’s no standout session. If you’re keen, aim for Wednesday the 19th morning or Friday the 28th morning. Otherwise, save your wax.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat afternoon. Warm (max 31°C on Thu afternoon, min 26°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 32°C on Mon afternoon, min 26°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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 7 | E 7 | E 7 | E 9 | E 9 | NE 13 | ENE 12 | NE 11 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | NE 6 | E 12 | E 11 | E 10 | E 10 | E 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 4 | 4 | 6 | 7 | 6 | 14 | 20 | 20 | 12 | 11 | 11 | 10 | 11 | 12 | 12 | 44 | 37 | 30 | 30 | 25 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | off | cross | cross | cross-off | cross-off | cross-on | off | glassy | cross | cross-off |
High Tide | 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 | 1:01PM0.33m | 1:04AM0.18m | 1:57PM0.32m | 1:56AM0.13m | |||||||
Low Tide | 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 | 6:26AM-0.32m | 7:20PM-0.21m | 7:13AM-0.30m | 8:23PM-0.18m | ||||||||
 |  |  | | |  | |  | | | | | | |  | | | | | | | |
 | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 8:01 | — | — | 8:00 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:57 | — | — | 7:55 | — |
mm | — | — | — | — | — | 1 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 31 | 29 | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 30 | 29 | 30 | 32 | 30 | 29 | 31 | 30 | 29 | 30 | 29 |
Feels °C | 33 | 34 | 31 | 33 | 31 | 29 | 34 | 31 | 30 | 32 | 33 | 30 | 33 | 36 | 33 | 32 | 34 | 31 | 34 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | SE 4 | E 9 | E 9 | SE 4 | ENE 11 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | NE 6 | E 12 | E 11 | E 10 | E 10 | E 9 |
| kJ | 4 | 4 | 4 | 3 | 6 | 1 | 4 | 13 | 20 | 12 | 11 | 11 | 10 | 11 | 12 | 10 | 44 | 37 | 30 | 30 | 25 |
Swell 2 Height (m) Direction Period (s) | — | E 10 | E 9 | E 9 | E 13 | NE 13 | ENE 12 | E 8 | ENE 11 | SSE 3 | NE 10 | SE 4 | SE 5 | SE 4 | ENE 7 | E 8 | NE 6 | ENE 6 | SSE 3 | ENE 7 | ENE 7 |
| kJ | — | 2 | 2 | 6 | 3 | 6 | 14 | 5 | 12 | 1 | 4 | 1 | 1 | 1 | 4 | 12 | 10 | 4 | 1 | 11 | 10 |
Swell 3 Height (m) Direction Period (s) | E 8 | — | — | E 7 | NE 13 | E 7 | E 9 | NE 11 | E 8 | NE 11 | NE 10 | NE 10 | E 10 | NE 9 | E 14 | E 12 | E 12 | — | SSE 3 | — | — |
| kJ | 1 | — | — | 1 | 7 | 1 | 1 | 20 | 1 | 5 | 4 | 4 | 2 | 3 | 4 | 12 | 11 | — | 2 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SSE 3 | SSE 4 | SE 3 | SE 3 | SE 4 | SE 4 | SSE 4 | — | SE 4 | — | — | — | — | — | SE 2 | SSE 3 | — | SE 2 | SE 3 |
| kJ | — | — | 2 | 4 | 3 | 4 | 7 | 9 | 4 | — | 3 | — | — | — | — | — | 1 | 4 | — | 1 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1394 | 1644 | 1353 | 1140 | 1817 | 785 | 838 | 1817 | 352 | 218 | 1431 | 218 | 375 | 352 | 352 | 3 | 352 | 0 | 3 | 498 | 95 |
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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