Coastguard Beach surfForecast / Massachusetts / USA

information circle48hr Weather and Surf, issued 7 am Wednesday 13 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
9.8° C
(Which is slightly warmer than usual)

How big are the waves at Coastguard Beach today?

The current surf forecast for Coastguard Beach at 1PM is: 0.2m 7s primary swell from a East direction and 0.2m 6s secondary swell from a East direction (forecast issued at 07:00am May 13). An open ocean swell of 1.0m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (13 May)0.5ft (0.2m)7s
Afternoon (13 May)0.5ft (0.2m)7s
Evening (13 May)3.5ft (1.1m)5s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 17mm), heaviest on Thu night. Very mild (max 14°C on Wed night, min 8°C on Fri afternoon). Winds decreasing (fresh winds from the S on Wed afternoon, light winds from the SE by Thu night).

Wednesday
13
Thursday
14
Friday
15
Sat
16
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
2
2
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)
0.2
ESE
7
0.2
ESE
7
0.2
E
7
0.2
E
7
1.2
S
5
1.1
S
5
1.1
S
5
0.9
SSE
5
1
SSE
4
1
SE
5
1.1
ESE
5
1.3
ESE
5
1.4
ESE
6
1.4
SE
6
1.3
ESE
7
0.8
ESE
9
1
ESE
9
1.6
SE
10
2.3
ESE
10
2
E
10
1.3
E
10
1.2
E
9
1.1
E
9
1.1
E
9
Wave Graph
Metric surfscale
Energy kJ
5
5
4
4
71
59
55
35
42
41
59
86
123
162
142
96
164
523
1004
769
314
256
207
198
Wind (km/h)
15
SW
20
SSW
30
SSW
30
S
35
S
30
S
30
S
25
SSE
30
SSE
25
SE
30
ESE
30
ESE
30
ESE
30
SE
20
SE
10
SE
15
E
15
ESE
20
NE
25
NE
25
NNE
25
NNE
15
NNW
10
WNW
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
High Tide
8:51AM2.55m
9:14PM2.83m
9:45AM2.66m
10:02PM3.02m
10:38AM2.76m
10:51PM3.19m
Low Tide
2:43AM0.65m
2:56PM0.61m
3:35AM0.45m
3:46PM0.52m
4:27AM0.24m
4:36PM0.43m
part cloud
cloud
cloud
cloud
clear
cloud
part cloud
cloud
cloud
cloud
part cloud
light rain
light rain
heavy rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:20
5:20
5:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:50
7:51
7:52
7:52
1
2
14
Temp °C
10
11
12
12
13
13
14
13
14
13
12
11
11
11
10
10
10
9
9
8
8
8
9
9
5
6
6
5
6
7
8
8
8
8
6
5
5
6
6
8
7
6
5
2
2
3
6
7
Swell 1
Height (m)
Direction
Period (s)
0.2
ESE
7
0.2
ESE
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.1
E
7
0.1
E
10
0.1
E
7
0.6
S
5
0.1
E
12
0.1
E
12
0.1
NE
12
0.1
E
11
0.9
ESE
7
1
ESE
9
1.6
SE
10
2.3
ESE
10
2
E
10
1.3
E
10
1.2
E
9
1.1
E
9
1.1
E
9
Energy kJ
5
5
4
4
4
4
1
2
1
20
3
3
5
2
73
164
523
1004
769
314
256
207
198
Swell 2
Height (m)
Direction
Period (s)
0.2
E
7
0.2
E
6
0.2
E
6
0.2
E
6
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
7
0.2
E
7
0.4
SW
5
0.1
E
12
0.8
ESE
9
0.9
SSE
9
1.1
SE
9
0.9
SSE
9
0.9
SSE
8
0.8
SSE
9
Energy kJ
4
3
3
3
2
2
2
1
4
7
3
96
151
220
148
113
103
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
4
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
11
0.1
E
13
0.1
E
7
0.1
E
7
0.2
E
7
0.1
E
12
0.2
SSW
6
Energy kJ
1
2
2
2
2
3
1
1
4
3
4
Wind waves
Height (m)
Direction
Period (s)
0.5
SW
4
0.6
SSW
4
0.9
SSW
4
1
S
5
1.2
S
5
1.1
S
5
1.1
S
5
0.9
SSE
5
1
SSE
4
1
SE
5
1.1
ESE
5
1.3
ESE
5
1.4
ESE
6
1.4
SE
6
1.3
ESE
7
0.7
E
6
1.4
E
10
1.5
E
10
1.4
E
10
Energy kJ
8
10
25
42
71
59
55
35
42
41
59
86
123
162
142
35
377
426
369
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
2
1
1
1
1
1
1
1
1
2
1
1
2
3
2
1
1
2
2
Distance (km)
17
17
1571
1577
1134
929
426
413
597
377
139
161
119
136
65
64
64
64
64
64
99
99
0
0
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
2
1
1
2
3
2
1
1
3
2
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
1
1
1
1
2
3
3
3
2
1
2
2
3
3
3
3
3
3
3
3
2
Header Global
Rating
(10 max)
8
7
7
9
9
9
9
9
5
5
5
5
5
5
5
5
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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