Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 7 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 0.4m 4s period and expected on Saturday (Sep 12) at 8AM.
| 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, let's get into it. I'm looking at the charts for Jupiter Inlet South Jetty and honestly, the next 16 days are a mixed bag of "maybe" and "nah." The water is sitting at 87°, which is a touch warmer than you'd expect for early September.
We kick off Monday the 7th with tiny ankle-biters around 0.7 ft coming out of the east. The morning has offshore wind, but with that combined energy sitting at only 7 (weak), it's basically flat. The afternoon goes glassy, same tiny size.
Tuesday the 8th isn't much better. We get a pulse of 1 ft NE swell with a long 11-second period. That makes for clean, lined-up waves, but the size is so small it's barely rideable. The combined energy is only 30-38 (weak). You'd be fighting for a waist-high set.
Wednesday the 9th sees a jump to 3 ft from the NNE, period dropping to 8 seconds. Combined energy hits 112 (moderate), which means there's some push, but it's a short-period wind swell and onshore wind is going to chop it up. Not pretty.
Thursday the 10th keeps that 3 ft NE wind swell going (energy 129, moderate), but again, onshore winds keep it messy. This is a whole stretch of "poor surf conditions" until Thursday the 17th of September. That's a solid gap of about 8 days with no real recommendation.
The only flicker of hope shows up on Thursday morning the 17th. We get 3 ft from the NNE with a slight 3 mph cross-offshore breeze out of the SSW. The waves are surfable, but the energy is still only 86 (weak). It's clean, but the period is short at 8 seconds, so don't expect any real power. It's the best we've got in this whole window, but it's ordinary.
After that, Friday the 18th and Saturday the 19th mornings get glassy with 2 ft NE swell, but the energy is weak (46-49). It's clean for a longboard, but nothing to write home about.
Then into the third week, Monday the 21st we see a jump to 4 ft NE swell with combined energy hitting 123 (moderate). The wind is light cross-shore in the morning, so it might be okay, but the period is a short 7 seconds. Tuesday the 22nd has the same size, but the wind picks up to 16-22 mph onshore, making it a total mess. That kind of setup with fresh onshore wind and a beach and jetty scene looks more like a kite-surfing playground than a good paddle session.
Honestly, if you're desperate, the Thursday morning the 17th is the closest thing to a highlight, but it's a weak swell. For the rest, keep your board in the car and wait for a better week.
Rusty
Short Range ForecastHeavy rain (total 20mm), heaviest during Mon morning. Warm (max 32°C on Mon afternoon, min 27°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 24mm), heaviest during Fri night. Warm (max 30°C on Fri afternoon, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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 | ENE 9 | ENE 8 | NE 11 | NE 11 | NE 10 | NNE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | SE 4 | SE 4 | SE 4 | SE 4 | E 9 | ENE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 7 | 7 | 29 | 30 | 25 | 82 | 142 | 180 | 123 | 82 | 52 | 31 | 23 | 11 | 4 | 4 | 6 | 11 | 8 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | glassy | cross-off | cross-on | cross-on | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | off | cross-on | on | cross-on | cross-on | on | cross |
High Tide | 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 | 10:00AM1.04m | 10:13PM0.99m | 10:42AM1.02m | 10:52PM0.96m | ||||||||
Low Tide | 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 | 3:46PM0.10m | 4:05AM0.02m | 4:29PM0.16m | 4:47AM0.06m | |||||||
 | |  |  | | | | | |  | | | | | | | | | | | | |
 | 7:01 | — | — | 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 | 4 | 1 | 4 | — | 2 | 3 | 1 | 2 | 3 | — | 2 | 7 | 2 | — | 7 | — | 5 | 1 | 1 | — | 4 |
Temp °C | 30 | 32 | 31 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 29 | 30 | 29 | 30 | 30 | 29 |
Feels °C | 33 | 35 | 34 | 33 | 32 | 33 | 32 | 31 | 32 | 32 | 31 | 31 | 32 | 32 | 33 | 32 | 33 | 32 | 33 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | S 3 | ENE 9 | SSE 3 | NE 11 | NE 11 | NNE 6 | NNE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | ENE 6 | ENE 6 | NE 6 | ESE 9 | SSE 4 | SSE 5 |
| kJ | 1 | 7 | 2 | 29 | 30 | 23 | 82 | 142 | 180 | 123 | 82 | 52 | 31 | 23 | 11 | 4 | 4 | 1 | 8 | 2 | 5 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | ENE 8 | — | N 6 | NE 10 | NE 10 | E 9 | E 9 | E 8 | E 8 | E 8 | SE 8 | NE 10 | NE 9 | NE 9 | NE 9 | SE 8 | E 9 | E 9 | ENE 9 |
| kJ | 5 | 1 | 7 | — | 3 | 25 | 28 | 2 | 1 | 1 | 1 | 1 | 2 | 4 | 3 | 3 | 3 | 3 | 6 | 6 | 8 |
Swell 3 Height (m) Direction Period (s) | NE 8 | — | NE 10 | E 8 | NNE 7 | E 8 | E 8 | — | — | — | — | — | NE 10 | SE 7 | SE 7 | SE 7 | E 7 | E 9 | NE 6 | ESE 9 | ESE 9 |
| kJ | 2 | — | 4 | 1 | 5 | 1 | 1 | — | — | — | — | — | 4 | 2 | 2 | 2 | 1 | 2 | 1 | 8 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | ESE 3 | SE 3 | ESE 3 | ESE 4 | SE 4 | SE 4 | SE 4 | SSE 4 | SE 3 | SE 4 | SE 4 | SE 4 | SE 4 | ESE 4 | ESE 4 |
| kJ | — | — | — | — | — | — | 1 | 1 | 4 | 5 | 5 | 3 | 4 | 6 | 3 | 3 | 4 | 6 | 11 | 6 | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 312 | 312 | 312 | 381 | 718 | 718 | 98 | 718 | 718 | 109 | 366 | 90 | 264 | 857 | 327 | 1593 | 1586 | 867 | 327 | 919 | 112 |
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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