40th Street Surf Break

Lat Long: 26.42° N 80.06° W

40th Street 48 hour detailed Surf Forecast

Issued: 1 pm 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's 40th Street sea temperature is
30.1° C
0.8° 

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


How big are the waves at 40th Street today (21 Jul):

  • Morning surf: Morning surf (21 Jul, local time) - 3ft (0.9m), 4s period with SE swell.
  • Afternoon surf: Afternoon surf (21 Jul, local time) - 3ft (0.9m), 5s period with SE swell.
  • Evening surf: Evening surf (21 Jul, local time) - 2.5ft (0.7m), 4s period with SE swell.

The current surf forecast for 40th Street at 6PM is: 0.8m 4s primary swell from a Southeast direction and 0.1m 8s secondary swell from a Northeast direction, 0.1m 8s secondary swell from a Northeast direction (forecast issued at 01:00pm July 21). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (21 Jul)3ft (0.9m)4s
Afternoon (21 Jul)3ft (0.9m)5s
Evening (21 Jul)2.5ft (0.7m)4s

Table - waves today at 40th Street. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 5mm), mostly falling on Thu night. Warm (max 30°C on Tue afternoon, min 28°C on Tue night). Wind will be generally light.

Tue
21
Wednesday
22
Thursday
23
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 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
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SE
4
0.9
SE
5
0.8
SE
4
0.7
SE
4
0.8
SE
4
0.7
SE
4
0.6
SE
4
0.8
SE
4
0.8
SE
4
0.7
SE
4
0.6
SE
4
0.7
SE
4
0.5
E
4
0.5
E
4
0.5
ESE
4
0.6
ESE
4
0.5
ESE
4
0.5
E
4
0.5
E
4
0.6
E
4
0.6
ENE
4
Wave Graph
Metric surfscale
Energy kJ
29
31
24
20
21
16
14
21
22
18
14
20
10
9
8
13
10
8
7
10
12
Wind (km/h)
20
SSE
20
SE
20
SE
20
SE
20
SE
15
SE
15
SE
20
SE
20
SSE
20
SE
20
SE
20
ESE
20
ESE
20
ESE
15
ESE
15
E
15
E
20
ENE
20
ENE
20
NE
20
ENE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross-on
High Tide
2:47PM0.75m
2:51AM0.72m
3:43PM0.72m
3:44AM0.69m
4:40PM0.70m
Low Tide
8:41AM0.01m
9:09PM0.16m
9:35AM0.04m
10:04PM0.20m
10:28AM0.06m
10:58PM0.21m
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:13
8:12
8:12
 mm
1
1
Temp °C
29
30
30
29
28
28
28
28
29
30
30
29
28
28
28
28
29
30
30
29
28
Feels °C
30
30
31
30
29
30
30
29
29
31
31
30
29
30
30
30
31
32
31
30
29
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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