Nantasket Beach surf break

Nantasket Beach surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 1 am Wednesday 27 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
12.9° C
(Which is 1.5°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 7AM is: 0.2m 7s primary swell from a East-southeast direction and 0.2m 6s secondary swell from a East direction (forecast issued at 01:00am May 27). An open ocean swell of 0.2m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (27 May)0.5ft (0.2m)7s
Afternoon (27 May)0.5ft (0.2m)7s
Evening (27 May)0.5ft (0.2m)6s

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 10mm), heaviest on Fri night. Warm (max 28°C on Wed afternoon, min 9°C on Fri night). Wind will be generally light.

Wednesday
27
Thursday
28
Friday
29
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
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.3
ESE
7
0.2
ESE
7
0.2
ESE
7
0.2
ESE
7
0.2
ESE
7
0.2
ESE
7
0.2
ESE
6
0.1
SE
6
0.3
NNE
3
0.3
NNE
3
0.1
E
8
0.4
NE
4
0.3
NE
4
0.3
NE
4
0.2
E
9
0.2
ENE
9
0.2
ENE
9
0.2
ENE
9
0.2
ENE
8
0.4
ENE
8
0.4
ENE
8
0.4
ENE
8
0.5
ENE
8
0.4
ENE
8
Wave Graph
Metric surfscale
Energy kJ
10
5
5
5
5
4
4
2
2
2
2
3
3
3
7
8
8
7
7
26
26
24
35
22
Wind (km/h)
20
SW
15
SW
15
WSW
15
WSW
15
W
15
NW
10
N
15
NNW
10
N
10
NNW
15
NNW
15
NE
10
ENE
10
E
5
E
5
WNW
10
NNW
5
WNW
15
NW
10
NNE
20
SE
15
S
10
SSE
25
S
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-on
on
on
glassy
off
cross-off
cross-off
cross-off
cross-on
cross-on
cross
cross
cross
High Tide
9:29AM2.63m
9:42PM2.91m
10:19AM2.62m
10:24PM2.94m
11:02AM2.60m
Low Tide
3:15AM0.22m
3:26PM0.36m
4:06AM0.15m
4:11PM0.40m
4:50AM0.10m
4:51PM0.43m
part cloud
cloud
cloud
cloud
part cloud
clear
part cloud
cloud
clear
part cloud
clear
part cloud
rain showers
rain showers
clear
part cloud
clear
part cloud
clear
clear
cloud
cloud
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:11
5:11
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:08
8:09
8:09
1
1
3
3
Temp °C
19
18
20
25
28
27
23
21
17
15
16
16
15
14
14
14
12
11
13
16
14
15
13
13
16
15
18
23
26
24
22
18
15
13
13
13
13
13
13
13
10
9
10
13
10
12
11
8
Swell 1
Height (m)
Direction
Period (s)
0.3
ESE
7
0.2
ESE
7
0.2
ESE
7
0.2
ESE
7
0.2
ESE
7
0.2
ESE
7
0.2
ESE
6
0.1
SE
6
0.1
SE
6
0.1
SE
6
0.1
SE
6
0.1
SE
6
0.1
SE
8
0.3
NE
4
0.3
NE
4
0.3
NE
4
0.2
ENE
4
0.3
NE
4
0.3
NE
4
0.4
ENE
8
0.4
ENE
8
0.4
ENE
8
0.5
ENE
8
0.4
ENE
8
Energy kJ
10
5
5
5
5
4
4
2
2
2
2
1
3
2
3
3
2
3
3
26
26
24
35
22
Swell 2
Height (m)
Direction
Period (s)
0.2
E
6
0.2
E
6
0.1
E
6
0.2
SSE
5
0.1
E
6
0.1
E
8
0.1
E
8
0.1
E
11
0.1
E
10
0.2
E
9
0.2
ENE
9
0.2
ENE
9
0.2
ENE
9
0.2
ENE
8
0.1
E
8
0.1
E
8
0.1
E
8
0.1
E
8
0.3
ENE
6
Energy kJ
3
3
1
2
1
1
1
2
2
7
8
8
7
7
1
1
1
1
6
Swell 3
Height (m)
Direction
Period (s)
0.1
E
15
0.1
E
14
0.2
WNW
2
0.1
E
6
0.1
E
11
0.1
SE
8
0.1
SE
8
0.1
SE
8
0.1
SE
8
0.1
SE
8
0.1
SE
8
0.1
SE
8
Energy kJ
4
4
1
1
2
3
3
3
3
3
3
3
Wind waves
Height (m)
Direction
Period (s)
0.3
SW
2
0.3
SW
2
0.2
WSW
2
0.2
NNW
3
0.3
N
2
0.3
NNE
3
0.3
NNE
3
0.2
NNE
3
0.4
NE
4
0.3
NE
4
0.3
NNE
4
0.4
SE
3
0.3
SE
3
0.4
SE
4
Energy kJ
1
1
1
1
1
2
2
1
3
2
4
2
2
3
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)
58
102
67
108
108
340
91
90
113
117
117
117
118
160
165
160
160
160
165
160
523
523
523
210
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
1
1
1
1
1
1
1
1
3
2
2
5
2
1
1
1
1
1
1
2
1
1
1
1
Header Global
Rating
(10 max)
9
9
7
9
6
6
6
6
9
8
9
8
7
7
6
6
5
5
5
5
5
5
5
5
  • 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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