Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 20 Jul 2026:
- Most powerful swell: Monday 20 Jul, 11PM (local time) - 4ft (1.2m), 5s period, SSE swell with 74 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 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 Thursday (Jul 23) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (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, Rusty here. I’ve had a good look at the charts for Jupiter Inlet South Jetty, and I gotta be straight with you – it’s a tough stretch. The next couple of weeks are looking pretty flat and sad, with barely a ripple to get excited about. We’re looking at a long dry spell here, so don’t be in a rush to load up the boards.
The pattern starts off with a weak, short period swell from the SSE on Monday, July 20th, but it’s a total write-off. We’re talking a tiny 3 ft max with a crappy 4-second period, and the wind is a messy cross-shore. The combined energy is weak as dishwater at just 31. It’s the same story through Tuesday and Wednesday – tiny swell, onshore or cross-onshore breezes, and just poor, choppy conditions. The swell drops to almost nothing by Thursday the 23rd and Friday the 24th, with combined energy values barely above 5 and 16. Honestly, it’s not worth paddling out for.
We do finally get a bit of a reprieve on Saturday, July 25th. The morning is glassy calm with a light 1 ft, 8-second swell from the ENE. The wind is dead flat, so the surface will be like a mirror, but the energy is still super weak (26). This is really the only window in the first week that might give you a cruisy, small-wave session on a longboard. Saturday afternoon gets a bit of a cross-on breeze, so hit it early.
Sunday the 26th through to the end of July stays pretty flat. A few mornings see a light offshore wind (WSW or W) which will clean up the 0.7 ft to 1.0 ft dribble, but it’s barely surfable. The energy is in the single digits or low teens. Friday, July 31st, has a glassy afternoon with a 0.7 ft, 9-second swell, but it’s just too small.
As we flip into August, there’s a slight increase in activity on Saturday the 1st and Sunday the 2nd, with a SE swell bumping up to 2 ft and 3 ft and the combined energy getting into the 30s and 40s. The period is still short and weak (4-5 seconds), and the wind is mostly cross or cross-on, so it’s going to be a messy, lumpy mess. The final few days show a bit of energy from the NE, but the wind is onshore and the quality is poor.
So, the only standout here is Saturday morning, July 25th. The glassy conditions are a major positive, but don’t expect any power. For a spot that’s fairly exposed, we just aren’t getting any love. The water temp is about average for the time of year. This is a long stretch of quiet water, so it’s a good time to do some maintenance on your gear.
Rusty.
Short Range ForecastModerate rain (total 18mm), heaviest on Sun night. Warm (max 30°C on Mon morning, min 28°C on Sun night). Mainly fresh winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Fri night. Warm (max 30°C on Sat afternoon, min 27°C on Sat morning). Wind will be generally light. | ||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||
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 4 | SSE 5 | SSE 5 | SE 4 | SE 4 | SSE 4 | SE 4 | SE 4 | SE 4 | E 8 | SE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 34 | 23 | 39 | 48 | 21 | 19 | 11 | 15 | 9 | 10 | 5 | 3 | 6 | 12 | 12 | 21 | 20 | 19 | 19 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | on | on | cross-on | glassy | cross-on | cross |
High Tide | 1:28AM0.79m | 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 | |||||||
Low Tide | 7:40AM-0.03m | 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 | |||||||
 |  | |  | | |  | | |  | | | | | |  | |  | | |
 | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — |
 | 8:15 | — | 8:14 | — | — | 8:14 | — | — | 8:13 | — | — | 8:13 | — | — | 8:13 | — | — | 8:12 | — |
mm | 7 | — | 3 | 8 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 5 |
Temp °C | 29 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 |
Feels °C | 30 | 30 | 30 | 30 | 31 | 30 | 30 | 30 | 31 | 31 | 33 | 31 | 31 | 32 | 31 | 31 | 34 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | NE 8 | NE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SE 8 | SSE 4 | SSE 4 | ENE 8 | ESE 4 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 7 | 7 | 3 | 2 | 5 | 5 | 1 | 1 | 5 | 3 | 4 | 2 | 6 | 2 | 12 | 21 | 20 | 19 | 19 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | SE 8 | SE 8 | SE 8 | E 8 | ESE 4 | SE 8 | SE 8 | ENE 8 | E 8 | E 8 | SE 4 | E 8 | E 7 |
| kJ | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 1 | 3 | 3 | 2 | 12 | 1 | 1 | 5 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | E 8 | — | — | — | NE 10 | E 8 | E 8 | — | SE 8 | — | — | E 8 | — | E 7 |
| kJ | — | — | — | — | — | 1 | — | — | — | 4 | 5 | 1 | — | 2 | — | — | 1 | — | 1 |
Wind waves Height (m) Direction Period (s) | SSE 5 | SSE 4 | SSE 5 | SSE 5 | SE 4 | SE 4 | SSE 4 | SE 4 | SE 4 | SE 4 | — | ESE 4 | ESE 3 | — | ESE 3 | SE 3 | — | SE 4 | SE 3 |
| kJ | 34 | 23 | 39 | 48 | 21 | 19 | 11 | 15 | 9 | 10 | — | 1 | 4 | — | 2 | 6 | — | 6 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 380 | 327 | 292 | 106 | 984 | 1590 | 273 | 264 | 308 | 246 | 203 | 715 | 327 | 112 | 292 | 112 | 61 | 381 | 61 |
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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