Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 8 Sep 2026:
- Most powerful swell: Wednesday 9 Sep, 11PM (local time) - 3.5ft (1.1m), 8s period, NE swell with 184 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 1.1m 8s and forecast to arrive on Wednesday (Sep 09) 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 0.5m 6s period and expected on Sunday (Sep 13) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Wed 9th Sep) | 3.5ft (1.1m) 8s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight up about the local surf outlook for the Jupiter Inlet South Jetty region.
It’s looking like a tough stretch ahead. We’ve got a 16-day window, and the opening act is pretty flat. The first few days are all weak, small, and messy with poor surf conditions. The combined swell energy is mostly weak, sitting at around 30 to 119 (moderate) on Wednesday, but never really gets its act together with clean, punchy waves. The water temp is about average for this time of year at the Jetty.
We do see a little bump around Wednesday the 9th and Thursday the 10th, with some chest-high NE swell getting up to 3ft, but the period is short at 8 seconds, so it’s going to be weak and crumbly. Winds are mostly onshore or cross-onshore, making it choppy. Not really a recommendation for paddling out. It’s just a bit of a mushy, frustrating setup.
There’s a real dry spell from the 11th right through until the 19th. I’m talking days and days of tiny wave energy, often 12–39 (weak), with only knee-high or smaller slop. On the 12th and 13th, the swell period drops to 4 seconds – that’s pure wind chop, not surf. If that’s the case, the beach/jetty setup here might actually look more interesting for kite surfing than a proper paddle session, especially with those moderate breezes.
There is a small glimmer late in the period. On Saturday the 19th we get a glassy, calm morning with a tiny 2ft NNE swell, and the combined energy climbs back up (48). That’s clean, but the swell is barely there. The real standout is Sunday the 20th morning – again glassy, calm winds with a 2ft NNE swell and the energy bumping to 65. Conditions will be super clean, but still only for a small wave session on a longboard. It won't be big.
That’s the best we’ve got – a couple of small, clean windows for some glidey rights on the jetty rocks. For a spot that’s fairly consistent, this is a dry spell that feels a bit longer than usual. Forecasts can change though, so don’t give up hope entirely.
Rusty.
Short Range ForecastHeavy rain (total 22mm), heaviest during Tue night. Warm (max 30°C on Thu afternoon, min 27°C on Tue morning). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 20mm), heaviest during Fri morning. Warm (max 30°C on Fri afternoon, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 | NE 11 | NE 11 | NNE 7 | NNE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 10 | NE 6 | ESE 4 | ESE 4 | ESE 4 | SE 4 | E 9 | ENE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 7 | 29 | 30 | 41 | 117 | 132 | 180 | 114 | 79 | 48 | 22 | 15 | 10 | 5 | 6 | 10 | 9 | 8 | 8 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-on | cross-on | on | on | on | on | cross-on | on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 6:39AM0.92m | 7:19PM0.96m | 7:36AM0.97m | 8:07PM1.00m | 8:28AM1.01m | 8:51PM1.01m | 9:15AM1.04m | 9:33PM1.01m | 10:00AM1.04m | 10:13PM0.99m | 10:42AM1.02m | 10:52PM0.96m | |||||||
Low Tide | 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 | 3:46PM0.10m | 4:05AM0.02m | 4:29PM0.16m | 4:47AM0.06m | ||||||
 |  |  | | |  | | | | |  |  |  | | | | | |  | |
 | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — |
 | 7:34 | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:29 | — | — | 7:28 | — | — | 7:27 | — |
mm | 3 | 1 | 2 | 7 | 2 | — | 3 | 1 | 3 | 9 | 7 | — | — | 1 | — | 3 | — | — | — |
Temp °C | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 28 | 30 | 29 | 30 | 30 | 29 | 29 | 30 | 29 |
Feels °C | 33 | 33 | 33 | 31 | 32 | 31 | 32 | 32 | 33 | 32 | 32 | 33 | 32 | 33 | 32 | 32 | 31 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | SSE 3 | NE 11 | NE 11 | NNE 7 | NNE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 6 | NE 6 | SSE 4 | SSE 4 | ESE 9 | E 8 | S 4 | S 6 |
| kJ | 2 | 29 | 30 | 41 | 117 | 132 | 180 | 114 | 79 | 48 | 22 | 15 | 10 | 6 | 3 | 8 | 6 | 1 | 19 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | S 3 | NNE 8 | NE 10 | E 8 | E 9 | E 9 | E 8 | E 8 | E 8 | NNE 8 | NE 10 | NNE 9 | ENE 6 | ENE 6 | E 9 | ESE 9 | E 9 | ENE 9 |
| kJ | 7 | 1 | 12 | 25 | 1 | 2 | 1 | 1 | 1 | 1 | 7 | 14 | 8 | 4 | 4 | 2 | 8 | 6 | 8 |
Swell 3 Height (m) Direction Period (s) | NE 10 | E 8 | — | E 8 | — | — | — | — | — | E 8 | SE 7 | SE 7 | NE 9 | NE 9 | NE 8 | NE 6 | NE 5 | ESE 9 | ESE 9 |
| kJ | 4 | 1 | — | 1 | — | — | — | — | — | 1 | 2 | 2 | 3 | 3 | 3 | 1 | 1 | 8 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | ESE 3 | ESE 3 | ESE 3 | ESE 3 | ESE 4 | SE 4 | SE 4 | SE 4 | SE 4 | SE 3 | ESE 4 | ESE 4 | ESE 4 | SE 4 | ESE 4 | ESE 3 |
| kJ | — | — | — | 1 | 1 | 1 | 4 | 6 | 4 | 2 | 7 | 8 | 7 | 5 | 6 | 10 | 9 | 5 | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 381 | 112 | 120 | 150 | 718 | 718 | 327 | 203 | 343 | 48 | 109 | 112 | 328 | 981 | 1586 | 327 | 264 | 1018 | 203 |
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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