Surf Forecasts:
Jap Rock surf forecast from 19 Aug 2026:
- Most powerful swell: Wednesday 26 Aug, 5AM (local time) - 2.5ft (0.8m), 4s period, ESE swell with 24 kJ wave energy.
Best Forecast Surf Conditions for Jap Rock this week:
The most powerful waves expected at Jap Rock in the next 16 days are 0.8m 4s and forecast to arrive on Wednesday (Aug 26) at 5AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Wed 26th Aug) | 2.5ft (0.8m) 4s |
Table - best surf conditions forecast for Jap Rock over the next 16 days.
Short Range ForecastHeavy rain (total 39mm), heaviest during Thu night. Warm (max 32°C on Wed afternoon, min 26°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Sat night. Warm (max 30°C on Sat afternoon, min 28°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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) | ESE 9 | ESE 9 | E 8 | SSE 4 | S 4 | E 8 | E 8 | SSE 4 | E 9 | SE 3 | SSE 3 | ESE 4 | SE 4 | SSE 4 | ESE 4 | SE 4 | SE 4 | SE 4 | ESE 4 | ESE 4 |
Wave Graph  | ||||||||||||||||||||
 kJ | 8 | 7 | 5 | 9 | 8 | 5 | 6 | 8 | 6 | 5 | 7 | 3 | 7 | 5 | 7 | 9 | 11 | 15 | 12 | 21 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on |
High Tide | 2:03PM0.79m | 2:08AM0.77m | 2:56PM0.75m | 3:01AM0.73m | 3:56PM0.73m | 4:00AM0.72m | 4:58PM0.74m | 5:01AM0.73m | 5:56PM0.77m | 5:58AM0.75m | 6:46PM0.81m | 6:49AM0.79m | 7:30PM0.86m | |||||||
Low Tide | 8:25PM0.26m | 8:52AM0.16m | 9:22PM0.30m | 9:50AM0.19m | 10:21PM0.32m | 10:47AM0.20m | 11:17PM0.32m | 11:40AM0.18m | 00:09AM0.30m | 12:28PM0.16m | 00:56AM0.26m | 1:11PM0.12m | 1:38AM0.22m | |||||||
 |  |  | |  | |  | | |  | | | |  | | | | | | | |
 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — |
 | 7:52 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:46 | — |
mm | 1 | 1 | — | 4 | 29 | 1 | 1 | 2 | — | — | 6 | 3 | 1 | — | 1 | 1 | 1 | — | — | 1 |
Temp °C | 32 | 31 | 31 | 32 | 28 | 30 | 31 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 30 | 30 | 29 | 29 | 30 | 29 |
Feels °C | 35 | 34 | 34 | 33 | 31 | 33 | 32 | 31 | 33 | 31 | 31 | 31 | 31 | 32 | 32 | 31 | 32 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 3 | NE 9 | NE 8 | ESE 4 | NE 8 | NE 8 | ESE 4 | NE 8 | NE 8 | NE 8 | E 7 | NE 8 |
| kJ | 8 | 7 | 5 | 5 | 5 | 5 | 5 | 5 | 1 | 3 | 3 | 3 | 3 | 3 | 7 | 2 | 2 | 2 | 1 | 2 |
Swell 2 Height (m) Direction Period (s) | NNE 6 | NE 6 | SSE 3 | NE 8 | NE 8 | NE 8 | NE 8 | NE 9 | ESE 3 | E 8 | E 8 | NE 9 | E 8 | E 7 | S 4 | E 8 | E 8 | E 8 | NE 8 | E 10 |
| kJ | 4 | 1 | 1 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | NE 9 | NE 9 | NE 6 | NE 6 | E 5 | NE 9 | — | NE 7 | E 9 | E 13 | E 13 | S 3 | E 12 | E 12 | NE 8 | E 11 | E 11 | E 11 | E 11 | — |
| kJ | 3 | 3 | 1 | 1 | 1 | 3 | — | 2 | 6 | 3 | 3 | 1 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | — |
Wind waves Height (m) Direction Period (s) | — | SSE 3 | S 3 | SSE 4 | S 4 | SSE 4 | SSE 3 | SSE 4 | — | SE 3 | SSE 3 | — | SE 4 | SSE 4 | SSE 4 | SE 4 | SE 4 | SE 4 | ESE 4 | ESE 4 |
| kJ | — | 1 | 1 | 9 | 8 | 4 | 6 | 8 | — | 5 | 7 | — | 7 | 5 | 1 | 9 | 11 | 15 | 12 | 21 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 359 | 359 | 417 | 1193 | 1193 | 797 | 1074 | 797 | 775 | 359 | 386 | 170 | 1578 | 172 | 297 | 1438 | 190 | 386 | 797 | 263 |
Best forecast wave conditions in South Florida | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Jap Rock 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 Jap Rock Surf forecast
The above surf forecast table for Jap Rock provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jap Rock can be found by selecting the local surf guide option on the grey menu. Our Jap Rock 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 (Jap Rock) 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 Jap Rock 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.
Jap Rock is 5 km (3 miles) from the city of Boca Raton. If you plan a vacation in South Florida, look for hotels and other accommodation in Boca Raton. Boca Raton has rooms for a wide range of budgets as well as car hire and transport links.
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