Surf Forecasts:
Jupiter Inlet South Jetty surf forecast from 19 Aug 2026:
- Most powerful swell: Friday 21 Aug, 5AM (local time) - 2.5ft (0.7m), 4s period, S swell with 18 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 0.7m 4s and forecast to arrive on Friday (Aug 21) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (Aug 21) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Fri 21st Aug) | 2.5ft (0.7m) 4s |
Table - best surf conditions forecast for Jupiter Inlet South Jetty over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m looking at the forecast for our local patch. Over the next couple of weeks, we’re looking at a whole lot of nothing for a while, with a tiny glimmer of something interesting further out. It’s a tough stretch, but we’ll get through it.
First up, the water temp is sitting about average for this time of year, so no complaints there. But for the next week or so, it’s going to be a real struggle. From Wednesday the 19th all the way through to the morning of Thursday the 27th, we’ve got barely a ripple to work with – tiny swells mostly under 2 ft, short periods, and often poor conditions. You’ll see a few clean mornings with light cross-off winds, like Thursday the 20th morning or Saturday the 22nd morning, but the swell is just too small to get excited about. The combined wave energy is often in the low double digits or even single digits, which tells you the ocean is basically asleep.
We finally get a little pulse on Thursday morning the 27th. Jupiter Inlet South Jetty sees a pulse of swell from the ESE around 1 ft, but the period jumps to 12 seconds, which is a proper groundswell. The combined energy hits 118 (moderate). Winds are light cross-off from the SW, so it should be clean. The catch? It’s still small, and this break is for advanced surfers, so it’s not one for the beginners. After that, it fades back into tiny, choppy junk through the end of August and into the start of September.
There’s really nothing here that stands out as a proper session. The best bet is the Thursday morning the 27th, but you’ll need a log or a longboard and low expectations. It’s not a standout by any means – just the least bad option in a dry spell.
So, to sum it up: we’ve got a long, flat start, a brief, clean, but small window on the 27th morning, then back to the doldrums. Hang in there, folks. Forecasts can change.
- Rusty
Short Range ForecastModerate rain (total 15mm), heaviest on Fri afternoon. Warm (max 32°C on Fri afternoon, min 27°C on Wed morning). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 16mm), heaviest on Sun night. Warm (max 30°C on Sat afternoon, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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) | ESE 10 | ESE 9 | ENE 9 | E 9 | E 8 | E 8 | ENE 8 | S 4 | ENE 8 | S 4 | ENE 9 | ENE 8 | SSE 4 | ENE 9 | SE 4 | SSE 4 | ENE 8 | ENE 8 | SE 4 |
Wave Graph  | |||||||||||||||||||
 kJ | 9 | 8 | 8 | 6 | 5 | 1 | 6 | 7 | 6 | 10 | 7 | 7 | 11 | 7 | 7 | 10 | 6 | 6 | 8 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | on | cross-off | cross-off | cross-on | cross | cross-off | cross-on | cross-off | cross-off | cross-on | cross | cross-off | cross-on | cross | cross-on | on | glassy |
High Tide | 1:33AM0.78m | 2:16PM0.77m | 2:21AM0.74m | 3:09PM0.73m | 3:14AM0.71m | 4:09PM0.71m | 4:13AM0.69m | 5:11PM0.71m | 5:14AM0.70m | 6:09PM0.74m | 6:11AM0.73m | 6:59PM0.78m | |||||||
Low Tide | 7:48AM0.14m | 8:16PM0.31m | 8:43AM0.19m | 9:13PM0.35m | 9:41AM0.23m | 10:12PM0.37m | 10:38AM0.23m | 11:08PM0.37m | 11:31AM0.21m | 00:00AM0.35m | 12:19PM0.18m | 00:47AM0.31m | |||||||
 |  |  |  | |  | | | | | | | | | | | | | | |
 | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | 7:54 | — | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — |
mm | — | — | — | 3 | — | 3 | 3 | 2 | 4 | 4 | — | — | 1 | — | 3 | 7 | — | 1 | 5 |
Temp °C | 31 | 30 | 31 | 31 | 29 | 31 | 30 | 30 | 32 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 29 | 30 | 27 |
Feels °C | 33 | 34 | 34 | 33 | 33 | 35 | 31 | 33 | 36 | 31 | 33 | 32 | 29 | 32 | 32 | 32 | 33 | 32 | 28 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ENE 6 | ENE 6 | S 3 | E 8 | E 8 | S 4 | ENE 8 | ENE 8 | E 8 | SSE 4 | ENE 8 | ENE 8 | SE 4 | ENE 8 | ENE 8 | ESE 4 | ENE 8 | E 8 |
| kJ | 9 | 4 | 4 | 2 | 5 | 1 | 12 | 6 | 6 | 5 | 2 | 7 | 7 | 3 | 7 | 6 | 1 | 6 | 1 |
Swell 2 Height (m) Direction Period (s) | ENE 10 | S 3 | ENE 9 | NE 6 | S 3 | NE 6 | ENE 8 | E 8 | E 8 | NE 7 | ENE 9 | E 8 | E 8 | ENE 9 | E 8 | E 7 | ENE 8 | E 9 | NE 8 |
| kJ | 9 | 1 | 8 | 1 | 1 | 1 | 6 | 1 | 1 | 2 | 7 | 1 | 1 | 7 | 1 | 1 | 6 | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | NE 6 | ESE 9 | SE 9 | E 9 | NE 6 | E 8 | E 8 | — | — | E 9 | NE 6 | E 13 | E 13 | E 8 | E 12 | E 12 | E 9 | E 11 | E 8 |
| kJ | 1 | 8 | 3 | 6 | 1 | 1 | 1 | — | — | 2 | 2 | 3 | 3 | 1 | 3 | 3 | 2 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | S 4 | — | — | — | — | — | — | S 4 | SSE 4 | S 4 | S 3 | SE 3 | SSE 4 | — | SE 4 | SSE 4 | S 4 | SSE 4 | SE 4 |
| kJ | 6 | — | — | — | — | — | — | 7 | 2 | 10 | 4 | 3 | 11 | — | 7 | 10 | 3 | 6 | 8 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 238 | 311 | 311 | 381 | 441 | 1240 | 1259 | 381 | 1746 | 1240 | 800 | 312 | 1161 | 113 | 109 | 273 | 380 | 1590 | 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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