Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 20 Jul 2026:
- Most powerful swell: Monday 20 Jul, 8PM (local time) - 4ft (1.2m), 5s period, SSE swell with 77 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 1.2m 5s and forecast to arrive on Monday (Jul 20) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Monday (Jul 27) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Mon 20th Jul) | 4ft (1.2m) 5s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here, and I gotta be straight with you – the surf forecast for the next couple of weeks is a tough one to swallow. We’re looking at a long, dry spell with nothing but flat, weak conditions on the horizon.
Let’s break it down. Starting Monday the 20th of July, we’ve got a small, weak SSE swell pushing in at around 3ft, but with a short period of 5 seconds and a fresh cross-shore wind, the ocean is just a mess. The combined wave energy is a paltry 45 and it’s being described as "poor surf conditions." That’s about as unappetising as it gets. The water temp is sitting at 86°, which is about average for the time of year.
This pattern just doesn’t let up. Tuesday the 21st through Wednesday the 22nd is more of the same – tiny 2ft to 3ft swell with onshore winds and choppy, lumpy conditions. The energy is barely registering in the 20s and 30s.
Then we hit a flat spell. From Thursday the 23rd of July all the way into the first week of August, the swell drops to a pathetic 0.7ft to 1ft, with a few days showing a tiny ENE pulse, but it’s not enough to surf. The combined energy values are in the single digits and low teens. The wind does go light and clean on a few mornings, like Sunday the 26th with a light cross-offshore breeze, and Monday the 27th with a light offshore from the WSW, but there’s simply no wave to push you around. You’d be floating out there.
There is a brief moment on Saturday the 1st of August where the wind goes glassy and the sea is like a mirror at Jupiter Inlet South Jetty, but with a 0.7ft swell, it’s a day for the paddleboard, not a surfboard.
The long and short of it is, there are no good surf options in this 16-day window. The Jupiter Inlet South Jetty is a beach/jetty break that needs some decent energy, and we just aren’t getting any. It’s a blank run, and for this area, when the summer pattern sets in like this, it can be pretty normal to have these extended flat spells. Don’t break your board over it – forecasts can change, and it tends not to stay this poor for too long.
Stay patient, keep an eye on the horizon, and I’ll catch you when the waves come back.
- Rusty
Short Range ForecastLight rain (total 9mm), mostly falling on Mon night. Warm (max 31°C on Mon afternoon, min 28°C on Mon morning). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Sat afternoon. Warm (max 30°C on Sat morning, min 27°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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) | SSE 5 | SSE 5 | SSE 5 | SE 5 | SE 5 | SSE 4 | SE 5 | SE 4 | SE 5 | E 8 | SE 4 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 37 | 74 | 48 | 26 | 25 | 18 | 37 | 19 | 17 | 5 | 3 | 6 | 12 | 20 | 21 | 20 | 19 | 19 | 19 | 19 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross | cross-off | cross-on | cross-off |
High Tide | 2:07PM0.77m | 2:15AM0.74m | 3:00PM0.73m | 3:04AM0.70m | 3:56PM0.69m | 3:57AM0.67m | 4:53PM0.68m | 4:53AM0.65m | 5:50PM0.68m | 5:49AM0.66m | 6:43PM0.69m | 6:42AM0.67m | 7:31PM0.72m | ||||||||
Low Tide | 8:05PM0.13m | 8:32AM0.01m | 9:00PM0.19m | 9:26AM0.05m | 9:55PM0.23m | 10:19AM0.08m | 10:49PM0.25m | 11:11AM0.09m | 11:41PM0.25m | 12:01PM0.08m | 00:29AM0.24m | 12:47PM0.06m | 1:15AM0.22m | ||||||||
 |  |  | | |  | | |  | | | |  | | | | | | | | | |
 | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — |
 | — | 8:14 | — | — | 8:14 | — | — | 8:13 | — | — | 8:13 | — | — | 8:13 | — | — | 8:12 | — | — | 8:10 | — |
mm | — | 2 | 5 | 1 | — | — | — | 1 | — | 1 | — | — | 1 | 1 | — | — | 5 | 3 | 3 | 4 | 5 |
Temp °C | 30 | 31 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 28 | 31 | 29 |
Feels °C | 29 | 30 | 28 | 29 | 30 | 30 | 30 | 31 | 31 | 32 | 30 | 31 | 32 | 31 | 32 | 33 | 30 | 31 | 30 | 34 | 30 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | NE 8 | NE 8 | E 8 | E 8 | E 4 | E 8 | E 8 | SE 8 | SSE 5 | SE 4 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 7 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 3 | 4 | 3 | 6 | 12 | 20 | 21 | 20 | 19 | 19 | 19 | 19 | 12 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | SE 8 | E 8 | E 8 | — | SE 8 | SE 8 | E 8 | E 8 | E 8 | E 8 | E 7 | SE 4 | E 7 | E 7 |
| kJ | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 1 | 5 | — | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 4 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 8 | E 8 | — | — | NE 10 | SE 8 | E 8 | — | SE 4 | ENE 4 | — | — | — | — | E 7 | — | — |
| kJ | — | — | — | — | 1 | 1 | — | — | 4 | 3 | 1 | — | 2 | 1 | — | — | — | — | 1 | — | — |
Wind waves Height (m) Direction Period (s) | SSE 5 | SSE 5 | SSE 5 | SE 5 | SE 5 | SSE 4 | SE 5 | SE 4 | SE 5 | ESE 4 | ENE 4 | E 3 | ESE 4 | SE 4 | SE 3 | SE 4 | SSE 4 | SSE 4 | S 4 | SE 4 | SSE 4 |
| kJ | 37 | 74 | 48 | 26 | 25 | 18 | 37 | 19 | 17 | 5 | 1 | 5 | 5 | 2 | 2 | 10 | 12 | 10 | 3 | 6 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 857 | 388 | 134 | 1404 | 1450 | 256 | 256 | 857 | 246 | 292 | 813 | 602 | 203 | 566 | 109 | 90 | 292 | 106 | 112 | 112 | 740 |
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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