Jap Rock Surf Forecast

/ Florida – South (39 breaks) / Florida (155 breaks) /

USA (1297 breaks) / Lat Long: (26.39° N 80.06° W)

Surf Forecasts:

Jap Rock surfForecast / Florida – South / USA

12 Day Weather and Surf, issued 1 am Wednesday 17 Sep 2025 EDT

Forecast update in hr min s Forecast update imminent

Jap Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Jap Rock sea temperature is 30.2° C
(Which is 1.3°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Jap Rock this week:

The surf forecast for Jap Rock over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 17) at 11AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.4m and 4s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Jap Rock in the next 12 days are 1.1m 8s and forecast to arrive on Wednesday (Sep 17) at 8AM. 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 6s period and expected on Saturday (Sep 20) at 5PM.

Wave Type	Time (EDT) & Date	Wave Height & Period
Next good surf (1 star+)	11AM (Wed 17th Sep)	3ft (0.9m) 8s
Best Surf	11AM (Wed 17th Sep)	3ft (0.9m) 8s
Most Powerful	8AM (Wed 17th Sep)	3.5ft (1.1m) 8s

Table - best surf conditions forecast for Jap Rock over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Heavy rain (total 37mm), heaviest during Wed morning. Warm (max 28°C on Fri morning, min 24°C on Wed morning). Wind will be generally light.									Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Sat morning. Warm (max 30°C on Sun afternoon, min 26°C on Sat night). Wind will be generally light.
	Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	NNE	NE	NE	NNE	ENE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NNE	NNE	NNE	NNE	NNE	NNE	NE
Period(s) (?)	8	8	8	8	5	8	7	7	6	8	8	7	7	6	6	9	8	7	8	8	8
Wave Graph (?)
kJ (?)	114	120	59	43	56	22	77	71	44	67	28	44	42	33	26	111	92	68	80	74	65
Wind (km/h)	NNW	ENE	E	E	ENE	NE	NNE	NNE	NNE	NNE	NNE	NNE	WSW	SE	SW	S	SSE	SSW	ESE	E	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- on	on	cross- on	cross- on	cross	cross	cross	cross	cross	cross	glass	glass	on	cross- off	cross	cross- on	cross	glass	cross- on	cross- on
High Tide / height (m)		6:03PM 0.94		6:17AM 0.94	6:55PM 0.97		7:11AM 0.98	7:39PM 0.99		7:58AM 1.01		8:18PM 1.00	8:40AM 1.03		8:55PM 1.00	9:19AM 1.03		9:30PM 0.99	9:56AM 1.02		10:04PM 0.97
Low Tide / height (m)	11:42AM 0.15		12:12AM 0.25	12:36PM 0.14		1:02AM 0.20	1:25PM 0.13		1:47AM 0.16		2:09PM 0.14	2:28AM 0.12		2:49PM 0.16	3:06AM 0.11		3:28PM 0.18	3:42AM 0.12		4:04PM 0.21	4:17AM 0.14

	Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
Sunrise	7:05	-	-	7:05	-	-	7:07	-	-	7:07	-	-	7:07	-	-	7:07	-	-	7:07	-	-
Sunset	-	7:22	-	-	7:21	-	-	7:20	-	-	7:19	-	-	7:17	-	-	7:16	-	-	7:15	-

Rain (mm)	16	2	9	6	1	3	-	-	-	1	1	1	-	-	2	-	-	-	-	-	-
Temp. °C	27	26	27	25	26	26	28	28	28	28	28	27	28	30	29	29	30	29	29	30	29
Feels °C (?)	30	26	27	28	28	28	30	29	29	30	30	29	32	32	31	31	30	30	33	32	31

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Florida - South

Wind Update Continuing clean conditions at Jap Rock (calm at Boca Raton 2 km from Jap Rock). 0.8m 9s swell from the NNE with a 0.5m 3s local chop from the ENE and a 0.4m 9s swell from the NE. 3 swells combining to make bigger set waves.
1 hour 14 minutes ago Jap Rock

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1 h 14 min ago

0 km/h

WNW

Clean

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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 12 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.