Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 28 Aug 2026:
- Most powerful swell: Monday 31 Aug, 11PM (local time) - 2ft (0.6m), 7s period, E swell with 40 kJ wave energy.
Best Forecast Surf Conditions for Jupiter Inlet South Jetty this week:
The most powerful waves expected at Jupiter Inlet South Jetty in the next 16 days are 0.6m 7s and forecast to arrive on Monday (Aug 31) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 4s period and expected on Sunday (Aug 30) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Mon 31st Aug) | 2ft (0.6m) 7s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s talk about what’s on the table for the next two weeks at Jupiter Inlet South Jetty (United States).
Right now, we’re looking at a pretty grim stretch to start. There’s nothing worth paddling out for from Friday the 28th of August all the way through to Monday the 7th of September. I’m talking a solid ten days of tiny, weak swell, cross-onshore breezes, and mostly poor conditions. The combined wave energy is barely a blip (32 to just 6) and the swell heights are struggling to hit 3 feet. Even the light wind days are bringing wind swell with periods around 4 to 5 seconds, which is just too short to offer any sort of rideable shape. This is a tough run for any surfer.
But hold on. Things finally change on the morning of Tuesday the 8th of September. That’s the standout in this entire outlook. We get a push of NE groundswell hitting 4 feet with a nice long period of 12 seconds, giving the jetty some real energy to work with. The combined energy jumps to 303 – that’s moderate but building. The wind early is a light WSW offshore, so it’ll be clean, with clean conditions. Swell direction NE is right on the money for this break. On the 8th, that morning window is your best shot. The afternoon sees a light cross-on breeze, so morning is the call.
The following day, Wednesday the 9th, has a similar setup: 4 feet NE swell, 11-second period, and a clean offshore wind from the west in the morning (277 combined energy). Again, the morning is the golden hour before the onshore kicks in for the afternoon.
The 10th and 11th of September both offer 3 to 4 feet NE swells with lighter winds, but the quality drops a notch. The morning conditions are described as “ordinary” — still surfable, but not the same standout quality as the 8th or 9th. Periods drop to 10 seconds.
The last day in the window, Saturday morning the 12th of September, looks like a glassy, fading swell (2 feet, 10 seconds, combined energy 110). It’s surfable for a longboard or a log, but nothing to get overly excited about.
So to sum it up: if you’ve got a board and you’re not a beginner (4 feet is solid, but manageable for intermediate and up), Tuesday the 8th or Wednesday the 9th of September are your winners. Go early, keep the offshore wind in your face, and enjoy the clean lines off the jetty. The rest of the window is pretty much dead or average. Crowds are likely at this spot, so don’t be surprised if you’re sharing waves on those good mornings.
Rusty
Short Range ForecastHeavy rain (total 23mm), heaviest during Thu night. Warm (max 30°C on Fri afternoon, min 27°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 15mm), heaviest on Wed afternoon. Warm (max 30°C on Mon afternoon, min 28°C on Wed afternoon). Wind will be generally light. | ||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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) | ENE 14 | ENE 13 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | E 7 | ESE 5 | ESE 4 | E 4 | ENE 10 | ENE 10 | E 4 | E 4 | SE 5 | E 4 | E 4 | ENE 10 | ENE 10 |
Wave Graph | |||||||||||||||||||
18 | 17 | 15 | 14 | 12 | 12 | 27 | 30 | 15 | 12 | 9 | 9 | 10 | 13 | 8 | 17 | 18 | 20 | 18 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | on | on | on | cross-on | on | on | cross-on | on | on | on | on |
High Tide | 9:00PM0.89m | 9:15AM0.88m | 9:37PM0.91m | 9:57AM0.91m | 10:14PM0.91m | 10:39AM0.93m | 10:51PM0.90m | 11:22AM0.93m | 11:31PM0.89m | 12:09PM0.92m | 00:13AM0.87m | 1:00PM0.90m | 1:02AM0.84m | ||||||
Low Tide | 2:44AM0.15m | 3:00PM0.09m | 3:20AM0.10m | 3:38PM0.10m | 3:57AM0.06m | 4:19PM0.12m | 4:37AM0.04m | 5:01PM0.16m | 5:20AM0.04m | 5:47PM0.21m | 6:09AM0.05m | 6:40PM0.27m | |||||||
— | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | |
7:45 | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | — | 7:39 | — | — | 7:38 | — | |
mm | 6 | 3 | 3 | 1 | — | — | 5 | 3 | 2 | 2 | 1 | 3 | — | 3 | — | — | — | 6 | 3 |
Temp °C | 28 | 29 | 30 | 29 | 29 | 30 | 29 | 30 | 30 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 29 | 29 | 29 |
Feels °C | 31 | 31 | 32 | 31 | 32 | 33 | 32 | 33 | 32 | 32 | 33 | 33 | 32 | 32 | 32 | 31 | 30 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | SE 4 | ENE 8 | ENE 8 | ENE 11 | SE 4 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 4 | SE 4 | ENE 7 | ENE 7 | SE 5 | ESE 11 | ESE 10 | ENE 10 | ENE 10 |
6 | 4 | 14 | 6 | 12 | 2 | 12 | 10 | 10 | 10 | 7 | 4 | 5 | 5 | 5 | 13 | 10 | 20 | 18 | |
Swell 2 Height (m) Direction Period (s) | ENE 14 | ENE 13 | ENE 12 | ENE 12 | ENE 8 | ENE 11 | E 8 | E 8 | ENE 7 | S 4 | ENE 10 | ENE 8 | NE 9 | NE 9 | ENE 7 | E 12 | ENE 11 | ESE 10 | ESE 9 |
18 | 17 | 15 | 14 | 6 | 12 | 1 | 1 | 5 | 1 | 9 | 6 | 3 | 3 | 5 | 3 | 11 | 9 | 9 | |
Swell 3 Height (m) Direction Period (s) | E 9 | ENE 9 | E 9 | E 9 | E 8 | ENE 8 | E 8 | E 8 | E 8 | E 7 | S 4 | ENE 10 | E 8 | E 8 | NE 9 | E 8 | E 7 | ESE 10 | — |
2 | 8 | 2 | 1 | 1 | 6 | 5 | 1 | 1 | 1 | 1 | 9 | 1 | 1 | 3 | 1 | 1 | 9 | — | |
Wind waves Height (m) Direction Period (s) | SE 4 | S 4 | SE 4 | SE 4 | ESE 4 | ENE 4 | E 7 | ESE 5 | ESE 4 | E 4 | SE 4 | NE 5 | E 4 | E 4 | ENE 4 | E 4 | E 4 | E 4 | E 4 |
6 | 3 | 5 | 4 | 7 | 5 | 27 | 30 | 15 | 12 | 2 | 6 | 10 | 13 | 8 | 17 | 18 | 13 | 12 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 112 | 109 | 566 | 238 | 327 | 1012 | 1240 | 857 | 857 | 857 | 857 | 857 | 1059 | 981 | 366 | 327 | 479 | 1052 | 301 |
Best forecast wave conditions in South Florida | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Jupiter Inlet South Jetty Surf forecast
The above surf forecast table for Jupiter Inlet South Jetty provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jupiter Inlet South Jetty can be found by selecting the local surf guide option on the grey menu. Our Jupiter Inlet South Jetty 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 (Jupiter Inlet South Jetty) 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 Jupiter Inlet South Jetty 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.
Jupiter Inlet South Jetty is 3 km (2 miles) from Jupiter. If you plan a vacation in South Florida, look for hotels and other accommodation in Jupiter. Jupiter has rooms for a wide range of budgets as well as car hire and transport links.











