Nantasket Beach surf break

Nantasket Beach surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 7 pm Monday 04 May 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
9.2° C
(Which is 1.3°C warmer than normal for this time of year)

How big are the waves at Nantasket Beach today?

The current surf forecast for Nantasket Beach at 10PM is: 0.3m 9s primary swell from a East direction and 0.1m 4s secondary swell from a Southeast direction (forecast issued at 07:00pm May 04). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (04 May)--
Afternoon (04 May)2ft (0.6m)9s
Evening (04 May)1ft (0.3m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 12mm), heaviest on Wed night. Warm (max 24°C on Tue afternoon, min 11°C on Wed night). Winds decreasing (fresh winds from the SSW on Tue night, calm by Thu afternoon).

Mon
4
Tuesday
5
Wednesday
6
Thu
7
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)
0.5
E
9
0.4
ENE
9
0.3
E
9
0.2
E
9
0.2
E
9
0.1
E
9
0.5
S
3
0.7
S
4
0.8
S
4
0.8
S
4
0.1
E
9
0.1
E
10
0.1
E
10
0.7
S
4
0.8
S
4
0.9
S
4
0.9
S
4
0.7
S
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
5
0.2
E
9
0.2
E
9
Wave Graph
Metric surfscale
Energy kJ
40
26
13
6
6
2
4
16
20
18
2
2
3
12
17
27
27
30
12
11
8
7
7
6
Wind (km/h)
25
SW
25
SSW
25
SSW
20
SSW
20
SSW
20
SSW
25
SSW
30
SSW
30
SSW
30
SSW
30
SSW
30
SSW
25
SSW
25
SSW
30
SSW
30
SSW
30
SSW
30
SSW
20
SSW
15
SW
10
WNW
10
NW
5
WNW
5
SSE
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
High Tide
2:01PM2.59m
2:01AM2.88m
2:41PM2.52m
2:42AM2.81m
3:23PM2.46m
3:26AM2.73m
Low Tide
7:52PM0.46m
8:26AM0.16m
8:32PM0.52m
9:06AM0.25m
9:15PM0.57m
9:51AM0.33m
part cloud
part cloud
cloud
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
rain showers
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:33
5:31
5:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:45
7:46
7:47
7:49
5
4
3
Temp °C
20
14
12
12
12
14
21
24
22
16
16
15
14
14
19
18
17
15
14
14
11
11
14
16
14
8
7
7
8
10
16
18
16
10
11
10
10
9
14
13
12
10
11
13
9
8
12
14
Swell 1
Height (m)
Direction
Period (s)
0.5
E
9
0.4
ENE
9
0.3
E
9
0.2
E
9
0.2
E
9
0.1
E
9
0.1
E
9
0.3
SE
6
0.1
E
9
0.1
E
9
0.1
SE
8
0.1
SE
8
0.1
SE
8
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
5
0.3
ESE
5
0.3
ESE
5
Energy kJ
40
26
13
6
6
2
2
5
2
2
2
2
3
2
2
2
2
2
12
11
8
7
6
6
Swell 2
Height (m)
Direction
Period (s)
0.1
S
5
0.1
E
6
0.1
SE
4
0.1
SE
8
0.1
SE
5
0.1
SE
8
0.1
E
9
0.1
E
9
0.1
E
9
0.1
E
9
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.2
E
9
0.2
E
9
0.2
E
9
Energy kJ
1
1
1
2
1
2
2
2
2
2
2
2
2
2
2
2
2
2
7
7
6
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
6
0.1
E
9
0.1
SE
8
0.1
S
5
0.1
E
10
0.1
SE
7
0.1
E
7
Energy kJ
1
2
2
1
2
2
1
Wind waves
Height (m)
Direction
Period (s)
0.4
SW
3
0.6
S
3
0.4
SSW
3
0.3
SSW
3
0.3
SSW
3
0.4
SSW
3
0.5
S
3
0.7
S
4
0.8
S
4
0.8
S
4
0.7
S
4
0.8
SSW
4
0.7
S
4
0.7
S
4
0.8
S
4
0.9
S
4
0.9
S
4
0.7
S
6
0.3
SSW
3
0.2
SSW
3
Energy kJ
3
7
4
2
1
3
4
16
20
18
13
18
13
12
17
27
27
30
2
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
2
2
3
1
1
1
1
1
Distance (km)
2499
2499
131
131
131
131
1946
1946
1946
1949
1954
1630
75
1238
1680
1945
1238
1237
108
26
55
58
58
131
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
2
2
3
3
3
3
2
2
3
2
2
2
3
2
3
3
2
3
2
3
3
3
1
Header Global
Rating
(10 max)
5
4
5
5
5
5
5
5
5
5
6
8
9
6
5
8
8
5
5
6
5
5
5
7
  • 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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