Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 17 Jul 2026:
- Most powerful swell: Friday 17 Jul, 11PM (local time) - 3.5ft (1.1m), 5s period, S swell with 64 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 5s and forecast to arrive on Friday (Jul 17) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Friday (Jul 17) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Fri 17th Jul) | 3.5ft (1.1m) 5s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright, let's get into it. This is a 16-day look at Jupiter Inlet South Jetty, and to be honest, it's a tough stretch for us wave hunters. The forecast is pretty much a flat spell for the next couple of weeks. There's a long gap here with no real surf to speak of.
We kick off Thursday, July 16th, with tiny 1.3ft windswell out of the NE, but the SE cross-on breeze has it all chopped up. Not worth a paddle. Friday offers a brief window of cleaner conditions with a WSW cross-off breeze in the morning, but the swell is a pathetic 1.0ft. You'd be floating around more than surfing.
The whole first week, right through to the end of July, is dominated by weak, small swells. You're looking at wave heights mostly under 2.6ft, with periods below 8 seconds, which is textbook windswell. The wind is a constant problem too, mostly from the SSE or SE, keeping things lumpy, choppy, and cross-onshore. The combined swell energy is weak, peaking at just 72 (weak energy) on the 26th and 28th, which is about as exciting as a flat tyre.
The real stand-out, the only time you might want to get wet, is on the morning of Thursday, July 30th. The wind is forecast to go glassy out of the SW. That's a major positive. The swell will be a modest 3.3ft from the E, with a period of 5 seconds, so it's still not a classic groundswell, but the glassy conditions will make the most of it. The combined energy hits 71 (weak energy), which is the best of the entire run. It's not a day for the record books, but for this stretch, it's the best on offer. The water temp is sitting at 86.2°F, which is about average for the time of year.
After that, we slide back into the same old story for the first day of August: small, crummy surf with onshore winds. It's a lean period, folks. If you're desperate, that Thursday morning glass-off is your only real shot.
Short Range ForecastModerate rain (total 14mm), heaviest on Fri night. Warm (max 31°C on Thu afternoon, min 27°C on Fri morning). Winds increasing (calm on Thu afternoon, fresh winds from the SE by Sat afternoon). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Mon night. Warm (max 31°C on Sun afternoon, min 27°C on Mon morning). Wind will be generally light. | |||||||||||||||||||
Thu 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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) | NE 7 | S 4 | NE 7 | SSE 3 | S 5 | SSE 4 | SSE 4 | SSE 4 | ENE 9 | SE 4 | SSE 4 | ESE 4 | SE 4 | SSE 4 | SE 5 | SE 5 | SE 4 | SE 4 | ESE 5 | SE 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 11 | 33 | 8 | 7 | 32 | 5 | 17 | 18 | 8 | 19 | 28 | 7 | 11 | 11 | 36 | 22 | 18 | 24 | 15 | 14 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | cross-off | cross-on | cross-off | cross | cross-on | cross | cross | cross-on | cross-off | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-on |
High Tide | 11:13PM0.92m | 11:33AM0.87m | 11:58PM0.89m | 12:24PM0.84m | 00:43AM0.84m | 1:15PM0.80m | 1:28AM0.79m | 2:07PM0.77m | 2:15AM0.74m | 3:00PM0.73m | 3:04AM0.70m | 3:56PM0.69m | 3:57AM0.67m | |||||||
Low Tide | 4:33PM-0.19m | 5:04AM-0.09m | 5:25PM-0.11m | 5:56AM-0.09m | 6:17PM-0.03m | 6:48AM-0.07m | 7:10PM0.05m | 7:40AM-0.03m | 8:05PM0.13m | 8:32AM0.01m | 9:00PM0.19m | 9:26AM0.05m | 9:55PM0.23m | |||||||
 |  |  |  | | | | | | | | | | | | |  | |  |  | |
 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — |
 | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:14 | — | — | 8:13 | — |
mm | — | 2 | — | 1 | 5 | — | 2 | 4 | — | — | 1 | — | 1 | 5 | 1 | 2 | — | — | — | — |
Temp °C | 31 | 30 | 29 | 31 | 31 | 29 | 30 | 28 | 29 | 31 | 30 | 30 | 31 | 29 | 30 | 30 | 29 | 29 | 29 | 29 |
Feels °C | 33 | 31 | 32 | 33 | 31 | 30 | 29 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 30 | 29 | 30 | 31 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 6 | SSE 4 | ENE 7 | ENE 7 | ESE 4 | ENE 7 | ENE 7 | SE 4 | ENE 8 | ENE 8 | ESE 4 | NE 8 | NE 8 | NE 8 | E 8 | E 8 | E 8 | S 4 | E 8 |
| kJ | 11 | 6 | 3 | 5 | 5 | 1 | 5 | 5 | 5 | 7 | 7 | 7 | 3 | 2 | 2 | 4 | 4 | 1 | 6 | 4 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | NE 7 | E 8 | E 8 | ENE 7 | E 8 | NE 9 | ENE 9 | E 7 | E 7 | ENE 8 | E 7 | E 7 | — | E 8 | E 8 | E 8 | E 7 | SE 8 |
| kJ | 1 | 1 | 8 | 1 | 1 | 5 | 1 | 3 | 8 | 1 | 1 | 7 | 1 | 1 | — | 1 | 1 | 1 | 4 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | E 8 | — | — | NE 6 | E 7 | E 8 | E 8 | — | — | E 7 | E 7 | — | — | E 7 | — | — | SE 8 | E 10 |
| kJ | — | — | 1 | — | — | 1 | 1 | 1 | 1 | — | — | 1 | 1 | — | — | 1 | — | — | 3 | 2 |
Wind waves Height (m) Direction Period (s) | SE 3 | S 4 | — | SSE 3 | S 5 | SSE 4 | SSE 4 | SSE 4 | S 4 | SE 4 | SSE 4 | S 4 | SE 4 | SSE 4 | SE 5 | SE 5 | SE 4 | SE 4 | ESE 5 | SE 5 |
| kJ | 2 | 33 | — | 7 | 32 | 5 | 17 | 18 | 5 | 19 | 28 | 3 | 11 | 11 | 36 | 22 | 18 | 24 | 15 | 14 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 312 | 2 | 1071 | 1746 | 61 | 1031 | 284 | 327 | 981 | 307 | 307 | 857 | 327 | 479 | 566 | 90 | 273 | 134 | 256 | 238 |
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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