Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 13 Aug 2026:
- Most powerful swell: Tuesday 18 Aug, 5PM (local time) - 1ft (0.3m), 12s period, ESE 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 0.3m 12s and forecast to arrive on Tuesday (Aug 18) at 5PM. 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 4s period and expected on Thursday (Aug 13) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Tue 18th Aug) | 1ft (0.3m) 12s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – the 16-day outlook for our stretch of coast is a tough one. We're looking at a long, quiet run with barely a ripple to get excited about. The data shows a consistent stretch of poor surf conditions right through.
Right off the bat, the first real chance to even think about a paddle is Thursday, August 13th. The Jupiter Inlet South Jetty (beach/jetty) is seeing a tiny 0.3 ft NE swell. It's clean in the morning with glassy conditions and a light SSE breeze at 3 mph, but the combined energy is only registering a weak 6. The swell’s short period of 8 seconds isn't building any power. It’s barely surfable.
That sets the tone. We skip through Friday and into the weekend with nothing. The swell barely nudges up to 1 ft or 2 ft, but it's all onshore or cross-onshore winds, from 9 to 12 mph, chopping up what little bump there is. The combined swell energy never cracks triple digits through this whole stretch, staying in that weak zone (6 to 57). There’s a brief window on Monday, August 17th morning with a clean 0.3 ft NE swell and a cross-offshore NNW wind at 9 mph, but that’s not surf; that’s a lake.
For advanced surfers, this is a frustrating blank. The swell is consistently below 2 ft across the entire period, and the period is frequently short (4 to 8 seconds). While the Jetty itself can handle a NE swell (its sweet spot), there’s just no energy behind it. The water temp anomaly isn't flagged as unusual, so it’s just an average, flat summer pattern.
The only potential stand-out in the whole 16 days – and I’m stretching here – is Wednesday, August 26th. The early morning shows 1 ft from the ENE with a period of 7 seconds, glassy conditions, and a slight 3 mph breeze. The combined energy is 35, which is still weak but the highest single morning reading for a clean window. The winds are offshore/glass at that time. It’s not going to be good surf, but it might be the only clean, knee-high ripple you’ll see.
Apart from that, it’s a solid two-week gap with no real recommendations. For a beach/jetty setup like this, with poor surf quality and persistent onshore winds, this stretch honestly looks better suited for a kite than a paddle. The wind and tiny chop will be more fun on a bigger kite than a surfboard. Forecasts can always change, but as of now, leave the log at home.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Wed night. Warm (max 30°C on Wed night, min 27°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 30°C on Mon afternoon, min 27°C on Sun morning). Wind will be generally light. | ||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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) | S 4 | S 3 | SE 3 | S 3 | SSE 4 | SE 4 | SE 3 | SE 4 | ESE 5 | SSE 5 | ESE 5 | ESE 8 | ESE 8 | NE 10 | ESE 8 | NE 6 | NE 6 | ESE 12 | NE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 6 | 3 | 3 | 6 | 5 | 7 | 6 | 18 | 15 | 17 | 4 | 6 | 6 | 4 | 6 | 7 | 9 | 28 | 11 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross | cross-on | on | cross-on | cross-on | cross-on | cross-on | glassy | on | cross-off | cross-off | cross-on | off | cross-on | on | cross |
High Tide | 9:16PM0.96m | 9:34AM0.95m | 10:01PM0.97m | 10:22AM0.95m | 10:44PM0.96m | 11:10AM0.94m | 11:26PM0.92m | 11:56AM0.91m | 00:07AM0.88m | 12:41PM0.87m | 00:50AM0.83m | 1:27PM0.81m | 1:33AM0.78m | ||||||
Low Tide | 3:01AM-0.03m | 3:23PM-0.11m | 3:49AM-0.06m | 4:11PM-0.06m | 4:36AM-0.07m | 4:58PM0.01m | 5:23AM-0.04m | 5:45PM0.09m | 6:09AM0.01m | 6:33PM0.17m | 6:57AM0.07m | 7:23PM0.24m | |||||||
 |  |  |  | | |  | | |  | | | | | | | | | | |
 | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | 8:00 | — | 7:59 | — | — | 7:58 | — | — | 7:57 | — | — | 7:55 | — | — | 7:54 | — | — | 7:54 | — |
mm | 3 | — | — | 1 | — | — | 1 | 1 | — | — | — | — | — | — | 1 | 2 | — | — | — |
Temp °C | 30 | 29 | 30 | 30 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 30 | 29 |
Feels °C | 32 | 33 | 33 | 32 | 31 | 32 | 32 | 31 | 30 | 32 | 34 | 32 | 33 | 32 | 32 | 32 | 33 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | NE 8 | SSE 3 | NE 8 | NE 8 | NE 8 | E 8 | NE 13 | ENE 12 | S 4 | ENE 11 | SSE 5 | NE 10 | SSE 5 | S 5 | NE 6 | NE 6 | NE 6 | NE 7 | NE 6 |
| kJ | 3 | 1 | 3 | 3 | 2 | 1 | 6 | 14 | 4 | 12 | 5 | 4 | 9 | 2 | 1 | 5 | 9 | 11 | 10 |
Swell 2 Height (m) Direction Period (s) | E 8 | NE 8 | E 7 | E 7 | E 7 | NE 13 | NE 8 | NE 8 | ENE 12 | E 8 | ESE 5 | ESE 8 | ESE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 12 | ESE 11 |
| kJ | 1 | 3 | 1 | 1 | 1 | 7 | 2 | 3 | 13 | 5 | 2 | 6 | 6 | 2 | 6 | 7 | 7 | 28 | 11 |
Swell 3 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 9 | E 9 | E 7 | E 7 | E 8 | E 8 | SE 8 | NE 10 | E 8 | NE 10 | NE 10 | E 8 | E 8 | SE 12 | ENE 12 | ENE 11 |
| kJ | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 4 | 5 | 4 | 4 | 1 | 1 | 6 | 14 | 11 |
Wind waves Height (m) Direction Period (s) | S 4 | S 3 | SE 3 | S 3 | SSE 4 | SE 4 | SE 3 | SE 4 | ESE 5 | SSE 5 | — | SE 4 | SSE 2 | — | — | SE 3 | SSE 3 | SSE 3 | SSE 4 |
| kJ | 6 | 2 | 2 | 6 | 5 | 3 | 6 | 18 | 15 | 17 | — | 5 | 1 | — | — | 2 | 2 | 4 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1236 | 1302 | 1622 | 1260 | 1622 | 1746 | 1242 | 292 | 1746 | 112 | 292 | 311 | 311 | 311 | 311 | 292 | 112 | 292 | 109 |
Best forecast wave conditions in South Florida | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Jupiter Inlet South Jetty surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest