Nantasket Beach surf break

Nantasket Beach surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 7 pm Wednesday 22 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
7.0° C
(Which is slightly warmer than usual)

How big are the waves at Nantasket Beach today?

The current surf forecast for Nantasket Beach at 2AM is: 0.6m 5s primary swell from a South-southeast direction and 0.3m 5s secondary swell from a Southeast direction, 0.3m 7s secondary swell from a East direction (forecast issued at 07:00pm April 22). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (23 Apr)1ft (0.3m)5s
Afternoon (23 Apr)0.5ft (0.2m)7s
Evening (23 Apr)1ft (0.3m)6s

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. Very mild (max 14°C on Thu afternoon, min 5°C on Thu night). Wind will be generally light.

Wed
22
Thursday
23
Friday
24
Sat
25
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
2 AM
5 AM
8 AM
11 AM
2 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
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>
<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)
0.3
E
7
0.3
E
7
0.6
SSE
4
0.6
SSE
5
0.3
E
7
0.3
SE
5
0.2
E
7
0.2
E
7
0.3
E
6
0.3
ESE
7
0.3
E
5
0.5
N
4
0.5
NNE
4
0.6
NNE
5
0.6
NE
5
0.5
NE
5
0.5
NE
5
0.4
NE
5
0.4
NE
5
0.1
E
15
0.3
E
6
0.2
E
15
0.3
E
14
0.2
ENE
14
Wave Graph
Metric surfscale
Energy kJ
8
8
13
15
9
4
4
3
6
9
5
7
11
17
14
13
13
6
6
4
7
17
37
20
Wind (km/h)
15
S
15
SSW
10
SSW
10
SSW
10
WSW
15
NW
20
NNW
25
NNW
20
NNW
15
NNW
15
NNW
10
NW
10
N
10
NNW
5
NE
15
E
15
ESE
10
SE
10
SSW
0
NNE
5
ENE
15
NE
15
ENE
10
E
cross
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-on
on
on
cross-on
cross-off
glassy
glassy
cross-on
cross-on
on
High Tide
4:10PM2.73m
4:25AM3.06m
5:16PM2.64m
5:33AM2.92m
6:23PM2.62m
6:42AM2.83m
Low Tide
10:07PM0.26m
10:56AM0.00m
11:13PM0.35m
12:03PM0.11m
00:23AM0.39m
1:09PM0.17m
cloud
cloud
cloud
cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
clear
clear
cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:31
7:32
7:34
7:35
Temp °C
7
7
6
6
7
7
12
14
13
11
9
7
5
5
7
9
9
7
7
6
6
5
6
7
2
3
3
3
4
3
6
7
7
6
4
2
1
1
3
4
4
3
3
4
3
0
2
3
Swell 1
Height (m)
Direction
Period (s)
0.3
E
7
0.3
E
7
0.4
SE
5
0.3
SE
5
0.3
SE
5
0.3
SE
5
0.2
ESE
5
0.2
ESE
5
0.3
E
6
0.3
ESE
7
0.3
E
5
0.3
E
6
0.3
E
6
0.5
NE
5
0.6
NE
5
0.5
NE
5
0.5
NE
5
0.4
NE
5
0.4
NE
5
0.2
ENE
4
0.3
E
6
0.3
E
6
0.3
E
6
0.3
E
6
Energy kJ
8
8
6
4
4
4
2
2
6
9
5
7
7
11
14
13
13
6
6
2
7
7
7
7
Swell 2
Height (m)
Direction
Period (s)
0.2
E
7
0.3
E
7
0.3
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.1
SE
4
0.1
E
8
0.1
E
7
0.1
E
7
0.2
E
6
0.1
E
5
0.1
SE
7
0.1
E
8
0.1
E
7
0.2
E
7
0.2
ENE
4
0.2
E
15
0.2
E
14
0.3
NE
4
Energy kJ
4
8
9
4
4
3
1
1
1
1
3
1
2
1
1
4
2
17
16
2
Swell 3
Height (m)
Direction
Period (s)
0.1
E
9
0.1
E
8
0.1
E
8
0.1
SE
5
0.1
SE
8
0.1
SE
7
0.1
SE
7
0.1
E
8
0.1
E
15
0.1
E
15
0.1
E
15
0.3
E
14
0.2
ENE
14
Energy kJ
2
1
1
1
2
2
2
1
4
4
4
37
20
Wind waves
Height (m)
Direction
Period (s)
0.3
SSE
4
0.4
SE
4
0.6
SSE
4
0.6
SSE
5
0.4
NNW
3
0.4
NNW
3
0.5
N
3
0.5
N
4
0.5
N
4
0.5
NNE
4
0.6
NNE
5
0.1
SE
5
0.2
SSE
2
0.1
NE
4
0.3
NE
2
0.4
NE
3
0.3
E
4
Energy kJ
3
4
13
15
3
3
5
6
7
11
17
1
1
1
1
3
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
Distance (km)
435
263
190
64
117
117
160
165
165
273
213
746
181
181
653
534
523
523
523
523
523
534
523
128
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
3
1
1
2
3
3
1
1
1
1
2
2
2
2
3
2
1
1
1
1
1
2
1
Header Global
Rating
(10 max)
9
9
6
5
5
5
5
5
5
5
5
5
6
9
5
5
4
5
5
7
4
5
4
4
  • 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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