Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 31 Aug 2026:
- Most powerful swell: Monday 31 Aug, 8PM (local time) - 1.5ft (0.5m), 7s period, E swell with 28 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 0.5m 7s and forecast to arrive on Monday (Aug 31) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 3s period and expected on Tuesday (Sep 01) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Mon 31st Aug) | 1.5ft (0.5m) 7s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright, folks, Rusty here with a look at what’s on offer at Jupiter Inlet South Jetty for the next couple of weeks. Gotta be straight with you: the start of the period is a total write-off. We’re looking at flat, choppy, stormy garbage for the first week through to the 7th of September with the combined swell energy barely reaching 49 across multiple days. Water temps are sitting around 86°, which is a touch above average for the time of year, but you wouldn't wanna be out there for it.
There is a glimmer of hope after that, but we have to wade through a lot of nothing to get there. The first real whisper of something surfable shows up on the morning of Monday the 8th of September. The swell climbs to 3ft from the NNE, with a bit more weight behind it—combined energy hits 110—and a clean 7-second period. Winds are light cross-offshore from the WSW, cleaning it right up. It's just surfable, nothing to write home about. That afternoon the wind switches, and things get choppy again, so the window is tight.
Now, here’s the standout for the run. Wednesday the 9th of September is your best bet. The morning brings a solid increase with a 4ft NE swell wrapping in from the optimum direction, a period of 10 seconds, and combined energy of 293—a noticeable jump in power. Winds are light offshore from the West, so it’ll be clean and peeling down the jetty. It’s advanced territory with that size and current, but for the experienced surfer, that’s the session to target. The afternoon holds similar height but the wind gets a bit cross, and the conditions get marginal.
After that, the swell backs off quickly. Thursday the 10th still offers some clean, small waves in the morning with 3ft from the NE and glassy winds, but by Friday the 11th it’s back to practically nothing, and then we run into another long gap of tiny, weak chop all the way through to the 15th. The combined energy drops to single-digit numbers from the 12th onward. There's just no energy left to work with. For a spot that’s fairly consistent, it’s a pretty frustrating blank run, but if you’re jonesing, the morning of the 9th is your only real chance.
Stay patient, boys.
- Rusty
Short Range ForecastHeavy rain (total 44mm), heaviest during Tue night. Warm (max 29°C on Mon afternoon, min 28°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Thu afternoon. Warm (max 29°C on Thu afternoon, min 27°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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) | ENE 8 | ENE 7 | NE 5 | NE 4 | ESE 11 | ENE 10 | ENE 10 | ENE 10 | SE 4 | ESE 4 | ESE 4 | SE 4 | ESE 4 | E 8 | E 8 | ESE 4 | ENE 7 | E 7 | E 8 | E 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 22 | 21 | 12 | 5 | 22 | 20 | 19 | 18 | 13 | 18 | 21 | 21 | 9 | 5 | 5 | 1 | 5 | 2 | 2 | 4 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | cross | glassy | on | cross |
High Tide | 11:31PM0.89m | 12:09PM0.92m | 00:13AM0.87m | 1:00PM0.90m | 1:02AM0.84m | 1:57PM0.87m | 2:00AM0.83m | 3:02PM0.85m | 3:07AM0.82m | 4:13PM0.85m | 4:21AM0.83m | 5:23PM0.87m | ||||||||
Low Tide | 5:01PM0.16m | 5:20AM0.04m | 5:47PM0.21m | 6:09AM0.05m | 6:40PM0.27m | 7:06AM0.09m | 7:41PM0.32m | 8:12AM0.12m | 8:50PM0.35m | 9:24AM0.13m | 10:02PM0.34m | 10:34AM0.11m | 11:10PM0.29m | |||||||
 |  | |  |  | | | | | |  |  | | | | | | | | | |
 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — |
 | 7:40 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:37 | — | — | 7:36 | — | — | 7:35 | — |
mm | 3 | 5 | 3 | — | 13 | 7 | 5 | 3 | 5 | 3 | — | — | — | — | — | — | — | — | — | 4 |
Temp °C | 29 | 29 | 28 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 29 | 29 |
Feels °C | 33 | 32 | 32 | 31 | 29 | 33 | 33 | 31 | 31 | 31 | 32 | 31 | 31 | 31 | 33 | 32 | 30 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 7 | NE 5 | NE 4 | ESE 11 | ENE 10 | ENE 10 | ENE 4 | ENE 5 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | S 4 | ESE 4 | ESE 4 | ENE 7 | — | E 8 | E 8 |
| kJ | 22 | 21 | 12 | 5 | 22 | 20 | 19 | 8 | 9 | 7 | 7 | 7 | 6 | 1 | 3 | 1 | 5 | — | 1 | 4 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | NE 9 | ENE 7 | SSE 3 | ENE 11 | ESE 10 | ESE 10 | ENE 10 | ENE 9 | E 9 | E 8 | E 8 | — | E 8 | S 4 | E 8 | N 7 | E 7 | NE 7 | NE 7 |
| kJ | 9 | 3 | 5 | 1 | 12 | 10 | 9 | 18 | 8 | 2 | 1 | 1 | — | 5 | 1 | 1 | 1 | 1 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | SE 4 | E 8 | — | ENE 7 | ENE 7 | ESE 10 | N 5 | ESE 9 | ESE 9 | ESE 9 | — | E 8 | E 8 | E 8 | E 8 | — | E 8 | NE 6 | N 6 | E 9 |
| kJ | 1 | 1 | — | 5 | 5 | 9 | 1 | 8 | 7 | 7 | — | 1 | 1 | 1 | 5 | — | 1 | 2 | 1 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | SSE 3 | — | ESE 4 | ESE 4 | E 4 | SE 3 | SE 4 | ESE 4 | ESE 4 | SE 4 | ESE 4 | ESE 4 | — | — | SE 4 | — | — | S 2 |
| kJ | — | — | 1 | — | 12 | 15 | 9 | 4 | 13 | 18 | 21 | 21 | 9 | 5 | — | — | 1 | — | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 292 | 857 | 106 | 366 | 238 | 48 | 366 | 570 | 150 | 857 | 203 | 397 | 1161 | 327 | 1071 | 1746 | 857 | 312 | 312 | 1236 |
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.
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