40th Street Surf Forecast

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

USA (1297 breaks) / Lat Long: (26.42° N 80.06° W)

Surf Forecasts:

40th Street surfForecast / Florida – South / USA

12 Day Weather and Surf, issued 7 pm Wednesday 17 Sep 2025 EDT

Forecast update in hr min s Forecast update imminent

40th Street surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's 40th Street sea temperature is 30.2° C
(Which is 1.3°C warmer than normal for this time of year)

Best Forecast Surf Conditions for 40th Street this week:

The most powerful waves expected at 40th Street in the next 12 days are 1.0m 8s and forecast to arrive on Thursday (Sep 18) at 11AM. 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	11AM (Thu 18th Sep)	3.5ft (1.0m) 8s

Table - best surf conditions forecast for 40th Street over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 56mm), heaviest during Thu afternoon. Warm (max 28°C on Fri afternoon, min 23°C on Wed night). Wind will be generally light.										Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Mon night. Warm (max 30°C on Tue afternoon, min 27°C on Sat night). Wind will be generally light.
		Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wed 24
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	NE	ENE	ENE	NE	NE	NNE	NE	NE	NE	NE	NE	NNE	NNE	NNE	ESE	NE	NE	NE	NE	NE	NE
Period(s) (?)	8	8	4	5	8	5	5	7	7	6	6	6	6	6	11	10	10	9	8	8	8
Wave Graph (?)
kJ (?)	59	107	42	24	23	27	32	54	46	34	37	25	26	25	23	27	25	31	54	37	36
Wind (km/h)	E	ENE	NE	NNE	NNE	NE	NNE	NE	NE	NE	ENE	NE	E	E	E	SE	SE	ESE	E	ESE	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	on	cross- on	cross- on	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	on	on	on	cross- on	cross- on	on	on	on	on
High Tide / height (m)		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	10:31AM 1.00
Low Tide / height (m)	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		4:40PM 0.24

		Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wed 24
Sunrise	-	7:05	-	-	7:07	-	-	7:07	-	-	7:07	-	-	7:07	-	-	7:07	-	-	7:09	-
Sunset	-	-	7:21	-	-	7:20	-	-	7:19	-	-	7:17	-	-	7:16	-	-	7:15	-	-	7:14

Rain (mm)	8	10	24	11	-	1	1	-	1	1	-	-	-	-	-	2	1	1	4	-	1
Temp. °C	26	26	24	26	27	28	28	28	28	27	28	29	28	28	29	28	29	30	29	29	30
Feels °C (?)	27	28	27	29	30	29	30	29	29	27	30	31	30	31	31	31	33	33	33	32	32

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 Wind reports 5 km away suggest it is still onshore at 40th Street (light winds from the E at Boca Raton Airport). 0.8m 4s local chop from the NE with a 0.5m 8s swell from the NNE and a 0.3m 8s swell from the NE. 3 swells combining to make bigger set waves.
2 hours 36 minutes ago 40th Street

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2 h 36 min ago

13 km/h

Onshore

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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 40th Street 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 40th Street Surf forecast

The above surf forecast table for 40th Street provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at 40th Street can be found by selecting the local surf guide option on the grey menu. Our 40th Street 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 (40th Street) 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 40th Street 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.

40th Street is 5 km (3 miles) from the city of Delray Beach. If you plan a vacation in South Florida, look for hotels and other accommodation in Delray Beach. Delray Beach has rooms for a wide range of budgets as well as car hire and transport links.