Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Nantasket Beach 48 hour detailed Surf Forecast

Issued: 7 am 02 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
17.6° C
3.0° 

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


How big are the waves at Nantasket Beach today (02 Aug):

  • Morning surf: Morning surf (02 Aug, local time) - 0.5ft (0.1m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (02 Aug, local time) - 1.5ft (0.4m), 3s period with SE swell.
  • Evening surf: Evening surf (02 Aug, local time) - 1.5ft (0.4m), 4s period with SE swell.

The current surf forecast for Nantasket Beach at 3PM is: 0.1m 9s primary swell from a Southeast direction and 0.1m 7s secondary swell from a Southeast direction, 0.4m 3s secondary swell from a Southeast direction (forecast issued at 07:00am August 02). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (02 Aug)0.5ft (0.1m)9s
Afternoon (02 Aug)1.5ft (0.4m)3s
Evening (02 Aug)1.5ft (0.4m)4s

Table - waves today at Nantasket Beach. (Swell directed towards the surf break)


Short Range Forecast

Moderate rain (total 12mm), heaviest on Mon night. Warm (max 30°C on Tue afternoon, min 19°C on Mon night). Winds decreasing (fresh winds from the SSW on Mon afternoon, light winds from the WSW by Tue night).

Sunday
2
Monday
3
Tuesday
4
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
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
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
SE
9
0.1
SE
9
0.1
SE
9
0.4
SE
3
0.4
SSE
4
0.4
SSE
4
0.4
SE
4
0.3
SE
4
0.4
SE
4
0.7
SSE
4
0.6
SSE
5
0.1
E
8
0.6
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
9
0.4
SE
9
0.2
ESE
9
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.3
SE
8
0.3
SE
4
Wave Graph
Metric surfscale
Energy kJ
3
3
3
3
5
7
4
2
4
17
17
1
35
18
25
19
19
8
7
7
7
10
3
Wind (km/h)
15
SSW
15
SSW
15
SSW
20
S
20
S
15
S
15
SSE
10
S
15
S
20
S
25
SSW
30
SSW
25
SSW
15
W
15
WNW
15
W
10
W
15
W
15
W
10
W
10
SW
15
SW
15
SW
Wind State
cross-off
cross-off
cross-off
cross
cross-off
cross
cross
cross
cross-off
cross
cross-off
cross-off
cross-off
off
cross-off
off
off
off
off
off
cross-off
cross-off
cross-off
High Tide
2:09AM2.93m
2:36PM2.83m
2:50AM2.88m
3:16PM2.90m
3:34AM2.80m
3:59PM2.96m
Low Tide
8:22AM0.04m
8:40PM0.19m
9:00AM0.06m
9:25PM0.15m
9:43AM0.10m
10:15PM0.13m
cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
rain showers
light rain
light rain
thunderstorm
light rain
thunderstorm
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:37
5:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:01
8:00
7:59
 mm
1
1
2
2
1
1
4
Temp °C
21
21
26
29
28
24
22
22
22
23
25
24
26
23
21
19
19
21
26
29
30
27
24
Feels °C
22
22
26
27
26
24
24
24
24
24
25
23
26
24
19
17
17
19
24
27
28
26
23
  • 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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nantasket Beach 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.


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