Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 5 Sep 2026:
- Best quality surf: Friday 11 Sep, 8AM (local time) - 2.5ft (0.7m), 9s period, NE swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 2PM (local time) - 3.5ft (1.1m), 9s period, NE swell with 164 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 8AM (local time) - 2.5ft (0.7m), 9s period with NE swell.
Best Forecast Surf Conditions for Jupiter Inlet South Jetty this week:
The surf forecast for Jupiter Inlet South Jetty over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 11) at 8AM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.3m and 3s. Another secondary swell of 0.4m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Jupiter Inlet South Jetty in the next 16 days are 1.1m 9s and forecast to arrive on Wednesday (Sep 09) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 4s period and expected on Sunday (Sep 06) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Fri 11th Sep) | 2.5ft (0.7m) 9s |
| Best Surf | 8AM (Fri 11th Sep) | 2.5ft (0.7m) 9s |
| Most Powerful | 2PM (Wed 9th Sep) | 3.5ft (1.1m) 9s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let’s have a look at what’s cookin’ for our local stretch. I’m gonna level with you right off the bat: we’re in for a long, flat spell. There’s almost nothing to get excited about for the first two weeks, but there’s a glimmer of something a bit more interesting way down the track.
For the first 12 days, from Saturday the 5th of September right through to Wednesday the 16th of September, it’s pretty grim. We’re talking tiny, gutless dribbles. The highlight, if you can call it that, is a few pulses of swell on the 9th and 10th. We get a bit of a bump from the NE on Wednesday the 9th, with waves around 3ft to 4ft, but the wind is onshore from the east, making it a messy, choppy affair. Not worth paddling out for. The combined wave energy does climb into the moderate range for a bit, but that’s all wind-driven junk.
After that, we drop right back into the doldrums. The water temp is sitting at 87°, which is a touch warmer than normal for this time of year, but it’s not doing us any favours for swell generation.
Now, you gotta wait all the way until Friday the 18th of September. That’s when the numbers start to look a bit more interesting. A NE swell pushes in, bringing wave heights up to 4ft by the Friday morning. The combined energy jumps to a strong level, but here’s the kicker: the wind is still howling out of the ENE, blowing cross-onshore and making a mess of the surface. For an advanced spot like Jupiter Inlet South Jetty, which is a beach/jetty setup that’s fairly exposed, that onshore wind just kills the quality.
This pattern holds through the weekend, with solid 4ft to 4ft NE swell, and the energy staying strong. But the wind keeps it lumpy and choppy. The swell direction is NE, which is the optimum swell direction for this spot, so the bones of the swell are good. If that wind ever swings offshore, it’d be on. But for now, honestly, with that much wind and a beach/jetty setup, this looks way more interesting for a kite surfer than for a paddle surfer.
Overall, there’s no standout session here. The first two weeks are a write-off, and the late burst of energy is ruined by the wind. Keep the board in the car, but don’t hold your breath.
Rusty.
Short Range ForecastHeavy rain (total 27mm), heaviest during Sat afternoon. Warm (max 31°C on Sun afternoon, min 27°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Thu night. Warm (max 30°C on Tue afternoon, min 27°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 | SSE 4 | S 4 | E 8 | E 7 | NE 9 | E 9 | ENE 9 | ENE 8 | NE 11 | NE 11 | NE 11 | NE 9 | NE 8 | NE 8 | NE 8 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 6 | 11 | 2 | 1 | 3 | 6 | 7 | 7 | 29 | 30 | 29 | 155 | 156 | 149 | 73 | 51 | 49 | 24 | 43 | 24 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-off | glassy | off | off | cross-on | off | glassy | on | cross-on | on | on | cross-on | cross-on | on | cross | cross | cross-on | cross-off |
High Tide | 4:13PM0.85m | 4:21AM0.83m | 5:23PM0.87m | 5:34AM0.87m | 6:25PM0.92m | 6:39AM0.92m | 7:19PM0.96m | 7:36AM0.97m | 8:07PM1.00m | 8:28AM1.01m | 8:51PM1.01m | 9:15AM1.04m | 9:33PM1.01m | ||||||||
Low Tide | 9:24AM0.13m | 10:02PM0.34m | 10:34AM0.11m | 11:10PM0.29m | 11:38AM0.09m | 00:10AM0.22m | 12:36PM0.05m | 1:04AM0.14m | 1:28PM0.04m | 1:53AM0.07m | 2:17PM0.04m | 2:39AM0.02m | 3:02PM0.06m | 3:22AM0.01m | |||||||
 |  |  | | | |  |  | | | | | |  |  | | | | | | | |
 | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — |
 | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:29 | — |
mm | 2 | 9 | 6 | 1 | 2 | 1 | — | 1 | 5 | — | — | 2 | — | — | 1 | — | 1 | 6 | 1 | 1 | 3 |
Temp °C | 29 | 30 | 29 | 29 | 31 | 30 | 29 | 31 | 30 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 29 | 31 | 30 |
Feels °C | 32 | 33 | 30 | 33 | 35 | 32 | 33 | 34 | 32 | 33 | 32 | 31 | 33 | 32 | 32 | 33 | 33 | 33 | 33 | 35 | 33 |
Swell 1 Height (m) Direction Period (s) | ESE 4 | E 8 | E 8 | S 3 | E 7 | SE 3 | E 9 | ENE 9 | ENE 8 | NE 11 | NE 11 | NNE 7 | NE 9 | NE 8 | NE 8 | NE 8 | NE 7 | NE 9 | NE 8 | NE 8 | NE 8 |
| kJ | 1 | 1 | 4 | 1 | 1 | 2 | 6 | 7 | 7 | 29 | 30 | 15 | 155 | 156 | 149 | 73 | 33 | 49 | 24 | 43 | 24 |
Swell 2 Height (m) Direction Period (s) | ENE 4 | — | N 7 | E 8 | — | NE 9 | — | E 8 | NE 10 | SSE 3 | NNE 8 | NE 11 | E 8 | E 9 | E 9 | NE 10 | NE 9 | NE 7 | NE 7 | E 8 | SE 8 |
| kJ | 2 | — | 1 | 1 | — | 3 | — | 1 | 4 | 1 | 6 | 29 | 1 | 2 | 2 | 44 | 51 | 22 | 15 | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | NE 6 | NE 6 | E 7 | NE 8 | — | E 8 | E 8 | E 8 | E 8 | — | — | — | SE 4 | S 5 | E 8 | SE 3 | NE 6 | — |
| kJ | 5 | 1 | 1 | 2 | 1 | 1 | 2 | — | 1 | 1 | 1 | 1 | — | — | — | 2 | 1 | 1 | 2 | 2 | — |
Wind waves Height (m) Direction Period (s) | SSE 4 | SSE 4 | S 4 | — | — | SSW 3 | — | SE 2 | SSE 3 | — | ESE 3 | SE 3 | SE 3 | ESE 3 | ESE 4 | — | ESE 4 | SE 2 | — | SE 4 | SSE 3 |
| kJ | 3 | 6 | 11 | — | — | 2 | — | 1 | 3 | — | 1 | 2 | 3 | 2 | 2 | — | 1 | 1 | — | 2 | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 867 | 1058 | 756 | 312 | 311 | 312 | 312 | 311 | 718 | 388 | 1590 | 171 | 109 | 366 | 203 | 106 | 343 | 109 | 21 | 311 | 566 |
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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