Nantasket Beach surf break

Nantasket Beach surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 1 am Friday 24 Apr 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Nantasket Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nantasket Beach sea temperature is
7.1° C
(Which is slightly warmer than usual)

How big are the waves at Nantasket Beach today?

The current surf forecast for Nantasket Beach at 5AM is: 0.3m 6s primary swell from a East direction and 0.4m 5s secondary swell from a Northeast direction (forecast issued at 01:00am April 24). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (24 Apr)1.5ft (0.4m)4s
Afternoon (24 Apr)1.5ft (0.4m)4s
Evening (24 Apr)0.5ft (0.2m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Mild temperatures (max 9°C on Sun afternoon, min 5°C on Fri night). Wind will be generally light.

Friday
24
Saturday
25
Sunday
26
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
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
1
1
1
0
0
0
0
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.4
NE
5
0.4
NE
5
0.4
NE
4
0.4
NNE
4
0.4
NNE
4
0.4
NE
4
0.2
E
8
0.1
E
15
0.1
E
15
0.1
E
15
0.2
E
15
0.2
E
14
0.2
ENE
14
0.3
ENE
14
0.3
ENE
14
0.3
ENE
13
0.4
ENE
13
0.4
ENE
13
0.4
ENE
13
0.4
ENE
13
0.4
ENE
12
0.4
ENE
12
0.4
ENE
12
0.3
ENE
12
Wave Graph
Metric surfscale
Energy kJ
7
7
5
5
6
3
4
4
4
4
17
16
20
38
36
34
57
56
55
55
52
49
48
28
Wind (km/h)
5
S
5
WSW
10
NW
15
NNE
15
E
15
E
10
E
5
ESE
5
ENE
10
NNE
10
NNE
15
ENE
15
E
10
E
10
SSE
10
SSW
5
SW
5
NE
5
ENE
10
ENE
15
E
15
E
10
SE
5
E
cross
cross-off
cross-off
cross
on
on
on
on
cross-on
cross
cross-on
cross-on
on
on
cross-on
cross-off
glassy
glassy
glassy
on
on
on
cross-on
on
High Tide
5:33AM2.92m
6:23PM2.62m
6:42AM2.83m
7:29PM2.65m
7:51AM2.79m
8:32PM2.73m
Low Tide
11:13PM0.35m
12:03PM0.11m
00:23AM0.39m
1:09PM0.17m
1:32AM0.37m
2:13PM0.20m
clear
clear
clear
clear
part cloud
clear
cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:34
7:35
7:36
Temp °C
6
6
7
8
8
7
6
5
5
5
5
6
6
6
6
6
6
6
6
8
9
9
8
7
3
3
3
2
2
1
2
2
2
1
1
1
1
2
2
2
3
3
3
4
4
4
4
4
Swell 1
Height (m)
Direction
Period (s)
0.4
NE
5
0.4
NE
5
0.4
NE
4
0.2
E
6
0.2
E
6
0.4
NE
4
0.3
NE
4
0.3
NE
4
0.1
NE
4
0.2
E
7
0.2
E
7
0.2
E
6
0.2
ENE
14
0.4
NE
4
0.3
E
8
0.3
ENE
13
0.4
ENE
8
0.4
ENE
13
0.4
ENE
13
0.4
ENE
13
0.4
ENE
12
0.4
ENE
12
0.4
ENE
12
0.3
ENE
12
Energy kJ
5
5
5
3
3
3
2
2
1
4
4
3
20
4
12
34
19
56
55
55
52
49
48
28
Swell 2
Height (m)
Direction
Period (s)
0.3
E
6
0.3
E
6
0.2
E
6
0.1
E
8
0.1
E
6
0.2
E
8
0.1
E
7
0.2
E
7
0.1
NE
4
0.2
E
15
0.2
E
14
0.2
E
6
0.3
E
8
0.3
NE
4
0.3
E
8
0.4
ENE
13
0.4
ENE
7
0.3
E
7
0.2
E
7
0.2
ENE
4
0.1
NE
4
0.1
NE
4
0.1
NE
4
Energy kJ
7
7
3
1
1
4
1
4
1
17
16
3
12
2
11
57
17
9
4
2
1
1
1
Swell 3
Height (m)
Direction
Period (s)
0.1
E
8
0.1
E
15
0.1
E
15
0.1
E
15
0.1
E
9
0.3
ENE
14
0.3
ENE
14
0.3
NE
4
0.2
ENE
5
0.3
ENE
10
0.2
ENE
5
0.2
ENE
5
Energy kJ
1
4
4
4
2
38
36
2
2
22
2
2
Wind waves
Height (m)
Direction
Period (s)
0.4
NNE
4
0.4
NNE
4
0.1
NE
4
0.3
NE
3
0.4
NE
4
Energy kJ
5
6
1
1
3
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
117
893
213
181
531
531
523
523
523
523
556
653
1237
128
58
12
0
0
0
556
558
660
523
523
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
3
3
1
1
1
2
1
1
2
2
2
2
1
1
1
1
1
2
1
1
1
Header Global
Rating
(10 max)
5
6
5
5
4
5
5
5
5
5
5
4
5
4
5
5
5
6
5
5
5
6
9
8
  • 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

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