Coastguard Beach surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 7 am Monday 11 May 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Coastguard Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Coastguard Beach sea temperature is
9.3° C
(Which is slightly warmer than usual)

How big are the waves at Coastguard Beach today?

The current surf forecast for Coastguard Beach at 10AM is: 0.5m 8s primary swell from a East direction and 0.5m 8s secondary swell from a Southeast direction (forecast issued at 07:00am May 11). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (11 May)2ft (0.6m)8s
Afternoon (11 May)2ft (0.6m)8s
Evening (11 May)1.5ft (0.4m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 7mm), mostly falling on Mon morning. Very mild (max 13°C on Wed night, min 8°C on Tue morning). Winds increasing (light winds from the E on Tue afternoon, fresh winds from the S by Wed night).

Monday
11
Tuesday
12
Wednesday
13
Thu
14
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
2 AM
Rating
(10 max)
0
0
1
0
0
0
1
1
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
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.7
SE
8
0.7
ESE
8
0.5
SE
8
0.6
ESE
8
0.6
ESE
8
0.4
E
8
0.7
E
8
0.7
E
8
0.6
E
8
0.5
E
8
0.5
E
8
0.5
E
7
0.4
ESE
7
0.4
E
7
0.4
E
7
0.4
E
7
0.2
E
7
0.2
E
7
0.3
E
7
0.2
E
7
1.2
S
5
1.1
S
5
1.3
SSE
5
1.3
SSE
6
Wave Graph
Metric surfscale
Energy kJ
60
51
31
45
44
21
64
66
46
34
29
28
17
15
15
15
5
5
8
4
65
62
98
113
Wind (km/h)
20
NNW
15
NNW
10
NNW
10
NNW
10
E
10
S
10
SW
15
NW
25
N
25
NNW
25
NNW
15
N
5
E
20
SSW
25
SSW
20
SW
20
WSW
20
SW
25
SSW
30
SSW
35
S
35
S
35
S
35
S
cross-off
cross-off
cross-off
cross-off
on
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
High Tide
6:59AM2.41m
7:37PM2.46m
7:55AM2.46m
8:26PM2.63m
8:51AM2.55m
9:14PM2.83m
Low Tide
1:18PM0.76m
1:48AM0.84m
2:07PM0.70m
2:43AM0.65m
2:56PM0.61m
cloud
light rain
light rain
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:22
5:22
5:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:47
7:49
7:50
7:51
4
3
Temp °C
12
9
9
10
11
11
11
10
9
8
8
10
11
11
11
11
10
11
12
12
12
13
13
13
6
5
6
6
7
7
8
6
2
1
1
5
7
5
5
6
4
6
6
5
5
6
6
6
Swell 1
Height (m)
Direction
Period (s)
0.7
SE
8
0.7
ESE
8
0.5
SE
8
0.6
ESE
8
0.6
ESE
8
0.4
ESE
7
0.7
E
8
0.7
E
8
0.6
E
8
0.5
E
8
0.5
E
8
0.5
E
7
0.4
ESE
7
0.4
E
7
0.4
E
7
0.4
E
7
0.2
E
7
0.2
E
7
0.3
E
7
0.2
E
6
0.2
E
7
0.2
E
7
0.1
E
10
0.1
E
10
Energy kJ
60
51
28
45
44
21
64
66
46
34
29
28
17
15
15
15
4
4
8
3
4
4
2
2
Swell 2
Height (m)
Direction
Period (s)
0.2
E
8
0.2
E
8
0.5
E
8
0.1
E
12
0.2
N
3
0.4
E
8
0.4
SW
3
0.4
SE
7
0.1
E
12
0.1
E
12
0.4
NNE
4
0.3
NNE
4
0.2
NNE
4
0.2
NNE
4
0.2
ESE
7
0.2
ESE
7
0.1
E
10
0.2
E
7
0.1
E
10
0.1
E
10
0.1
E
13
0.2
E
7
Energy kJ
6
6
31
3
1
21
3
14
3
3
6
3
2
1
5
5
2
4
2
2
3
4
Swell 3
Height (m)
Direction
Period (s)
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
15
0.1
E
12
0.2
N
3
0.1
E
14
0.1
E
14
0.1
E
15
0.1
SW
4
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
10
0.1
NE
4
0.1
E
10
0.1
E
13
0.1
E
10
0.1
E
11
0.1
E
13
Energy kJ
3
3
3
4
3
1
4
4
4
1
2
2
2
2
2
2
1
2
3
2
2
3
Wind waves
Height (m)
Direction
Period (s)
0.6
NNW
4
0.7
NNW
4
0.4
NNW
4
0.3
N
4
0.5
SW
3
0.4
NW
3
0.8
N
4
0.8
N
4
0.6
N
4
0.6
SSW
3
0.6
SW
4
0.6
SW
4
0.6
SW
4
0.7
SW
4
0.8
SSW
4
1.2
S
5
1.1
S
5
1.3
SSE
5
1.3
SSE
6
Energy kJ
10
14
4
2
4
3
19
22
12
7
12
12
11
17
24
65
62
98
113
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
1
1
2
Distance (km)
101
8
0
2
66
10
0
0
94
101
104
102
102
69
129
11
11
11
132
1808
1148
929
761
161
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
1
1
2
1
3
3
3
2
1
1
2
2
2
3
2
2
3
2
2
1
2
Header Global
Rating
(10 max)
5
4
5
9
5
5
9
5
9
9
8
9
9
8
6
8
7
6
6
9
9
5
9
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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