Coastguard Beach surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 1 pm Sunday 17 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
10.0° C
(Which is normal for this time of year)

How big are the waves at Coastguard Beach today?

The current surf forecast for Coastguard Beach at 6PM is: 0.4m 8s primary swell from a Southeast direction and 0.1m 8s secondary swell from a East direction (forecast issued at 01:00pm May 17). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (17 May)2ft (0.6m)8s
Afternoon (17 May)1.5ft (0.4m)8s
Evening (17 May)2ft (0.6m)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 4mm), mostly falling on Mon night. Warm (max 25°C on Tue afternoon, min 14°C on Mon afternoon). Mainly fresh winds.

Sun
17
Monday
18
Tuesday
19
Wed
20
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
5 AM
8 AM
Rating
(10 max)
0
0
0
1
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
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.5
SE
8
0.4
SE
8
0.4
SE
8
0.6
SE
8
0.4
SE
8
0.5
SE
8
0.4
SSE
8
0.4
SE
7
0.6
SE
7
0.4
SE
7
0.7
SSE
4
0.2
ESE
7
0.1
E
9
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
Wave Graph
Metric surfscale
Energy kJ
31
22
16
48
21
28
22
14
33
13
11
5
2
7
7
7
7
7
7
6
6
6
7
7
Wind (km/h)
15
WSW
20
SSW
30
SW
20
WSW
15
WNW
20
NE
15
ENE
15
E
20
SE
20
SE
20
S
20
S
20
SW
20
SSW
20
SW
25
SW
25
SW
30
SW
35
SW
35
SW
30
SW
25
SW
30
SW
25
SW
off
cross-off
cross-off
off
cross-off
cross-on
on
on
cross-on
cross-on
cross
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
High Tide
12:24PM2.91m
00:34AM3.38m
1:18PM2.92m
1:28AM3.37m
2:13PM2.89m
2:23AM3.29m
Low Tide
6:19PM0.33m
7:04AM-0.11m
7:13PM0.33m
7:58AM-0.09m
8:09PM0.38m
clear
clear
part cloud
clear
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
rain showers
rain showers
clear
clear
clear
cloud
clear
clear
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
5:16
5:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:53
7:54
7:55
7:57
1
3
Temp °C
21
24
24
23
24
19
17
15
15
15
14
19
17
19
18
19
21
25
22
19
21
20
20
19
19
21
19
20
22
14
13
10
10
10
11
16
15
17
16
17
18
21
17
14
17
17
16
15
Swell 1
Height (m)
Direction
Period (s)
0.5
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.6
SW
4
0.5
SE
8
0.4
SSE
8
0.4
SE
7
0.4
NE
4
0.4
NE
4
0.3
NE
4
0.2
ESE
7
0.1
SE
7
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
Energy kJ
31
22
16
16
12
28
22
14
3
4
2
5
2
7
7
7
7
7
7
6
6
6
7
7
Swell 2
Height (m)
Direction
Period (s)
0.2
E
8
0.2
E
8
0.1
E
8
0.6
SE
8
0.4
SE
8
0.3
SW
4
0.3
N
3
0.2
SSW
4
0.1
E
18
0.4
SE
7
0.2
NNE
4
0.1
NE
4
0.1
NE
4
0.1
NE
4
0.1
E
13
0.1
E
13
0.1
E
13
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
Energy kJ
5
5
1
48
21
3
2
2
6
13
2
1
1
1
3
3
3
5
5
5
5
5
5
Swell 3
Height (m)
Direction
Period (s)
0.1
E
14
0.1
E
14
0.2
SSW
4
0.2
NNE
4
0.4
NNE
4
0.1
E
18
0.1
E
9
0.1
E
13
0.1
E
13
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
12
Energy kJ
4
4
2
1
5
6
2
3
3
5
5
5
5
3
Wind waves
Height (m)
Direction
Period (s)
0.4
SW
4
0.6
SSW
4
0.9
SW
4
0.8
SW
4
0.8
WSW
4
0.3
NNE
2
0.3
ENE
3
0.5
ENE
3
0.6
SE
7
0.4
SE
3
0.7
SSE
4
0.7
S
4
0.8
SSW
4
0.8
SSW
4
0.8
SSW
4
0.7
SW
4
0.9
SSW
4
1
SSW
4
1.2
SSW
5
1.3
SSW
5
1.2
SSW
5
1.2
SSW
5
1.2
SSW
5
1
SSW
4
Energy kJ
6
8
23
25
23
1
1
7
33
4
11
13
16
17
20
16
26
38
66
74
61
59
69
42
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
1
1
1
1
Distance (km)
10
129
139
0
99
99
103
116
477
477
477
477
477
137
137
137
496
140
167
129
129
128
128
161
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
4
1
1
1
3
3
3
3
3
2
2
1
4
4
4
4
3
1
1
2
2
4
4
Header Global
Rating
(10 max)
8
6
4
4
5
7
5
4
5
4
4
4
4
4
4
4
4
4
4
4
5
4
4
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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