Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Issued: 7 am 16 Jun 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
17.8° C

2.9°C warmer than normal for this time of year

Nantasket Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Nantasket Beach today (16 Jun):

  • Morning surf: Morning surf (16 Jun, local time) - 1.5ft (0.4m), 7s period with E swell.
  • Afternoon surf: Afternoon surf (16 Jun, local time) - 1ft (0.3m), 6s period with E swell.
  • Evening surf: Evening surf (16 Jun, local time) - 1ft (0.3m), 6s period with E swell.

The current surf forecast for Nantasket Beach at 3PM is: 0.3m 6s primary swell from a East direction and 0.2m 3s secondary swell from a North direction (forecast issued at 07:00am June 16). The wind direction is predicted to be glassy.

Time (EDT) & DateWave HeightWave Period
Morning (16 Jun)1.5ft (0.4m)7s
Afternoon (16 Jun)1ft (0.3m)6s
Evening (16 Jun)1ft (0.3m)6s

Table - waves today at Nantasket 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 Thu afternoon. Warm (max 25°C on Wed afternoon, min 16°C on Tue night). Wind will be generally light.

Tuesday
16
Wednesday
17
Thursday
18
Fri
19
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
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
E
7
0.4
E
7
0.4
E
6
0.3
E
6
0.3
E
6
0.3
E
6
0.4
ESE
6
0.3
E
6
0.3
E
6
0.2
E
6
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
15
0.2
E
8
0.2
E
8
0.7
SE
4
0.9
SSE
5
0.8
SE
6
0.5
SE
6
0.4
SE
6
0.4
SE
6
Wave Graph
Metric surfscale
Energy kJ
8
14
13
7
7
7
14
7
7
3
5
5
5
5
5
4
4
5
16
44
36
16
11
8
Wind (km/h)
20
NW
20
NW
10
WNW
0
WNW
10
SE
5
SSE
15
SW
10
WSW
10
WSW
10
SSW
10
SSE
15
SSE
20
S
15
S
15
S
15
SSE
10
S
20
SSE
30
SSE
25
SSW
25
SW
15
SW
20
W
25
W
Wind State
cross-off
cross-off
off
glassy
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross
cross
cross
cross
cross
cross-on
cross
cross-off
cross-off
cross-off
off
off
High Tide
12:53PM2.96m
1:03AM3.47m
1:49PM2.97m
2:00AM3.39m
2:44PM2.95m
Low Tide
6:38AM-0.44m
6:47PM-0.01m
7:33AM-0.41m
7:44PM0.02m
8:27AM-0.33m
8:41PM0.08m
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
cloud
clear
clear
clear
clear
cloud
cloud
light rain
cloud
light rain
thunderstorm
rain showers
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:05
5:05
5:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:22
8:22
8:22
 mm
1
1
2
2
1
Temp °C
16
17
21
23
23
22
18
16
16
19
23
25
24
21
18
17
17
18
19
22
23
22
21
20
Feels °C
13
13
18
22
21
20
15
14
14
17
21
21
19
18
16
17
17
17
16
20
23
22
19
16
Swell 1
Height (m)
Direction
Period (s)
0.3
E
7
0.4
E
7
0.4
E
6
0.3
E
6
0.3
E
6
0.3
E
6
0.4
ESE
6
0.3
E
6
0.3
E
6
0.2
E
6
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
8
0.2
E
8
0.2
E
8
0.1
E
8
0.8
SE
6
0.5
SE
6
0.4
SE
6
0.4
SE
6
Energy kJ
8
14
13
7
7
7
14
7
7
3
3
3
4
4
4
4
4
5
4
1
36
16
11
8
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
9
0.1
SE
10
0.3
N
3
0.2
N
3
0.2
N
3
0.2
ESE
3
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
7
0.1
SE
8
0.1
SE
8
0.1
E
15
0.1
SE
7
0.1
E
14
0.2
E
7
0.2
E
7
0.1
E
7
0.1
E
7
Energy kJ
3
4
2
1
1
1
5
5
5
5
1
2
3
4
2
4
4
4
1
1
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
5
0.1
SE
9
0.1
SE
8
0.1
SE
7
0.2
S
3
0.1
E
16
0.1
E
7
0.1
E
16
0.1
E
15
0.1
E
15
0.1
E
15
0.1
E
14
0.1
E
14
0.1
E
14
0.1
E
14
0.1
E
14
Energy kJ
1
3
2
2
1
5
1
5
4
4
4
4
4
4
4
4
Wind waves
Height (m)
Direction
Period (s)
0.3
NNW
3
0.3
NNW
3
0.4
SE
3
0.5
SE
3
0.4
SE
3
0.3
SE
3
0.3
SE
3
0.3
SE
3
0.4
SE
3
0.7
SE
4
0.9
SSE
5
0.5
SW
3
0.4
SW
3
Energy kJ
2
2
4
5
3
2
2
2
3
16
44
4
3
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
Distance (km)
91
98
113
523
58
653
523
523
113
558
618
961
753
3302
523
531
531
1549
1666
3478
478
12
55
85
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
1
3
1
1
2
3
1
4
4
4
4
1
1
2
1
4
4
3
3
2
1
2
2
3
Header Global
Rating
(10 max)
5
5
4
4
4
6
5
5
5
5
4
4
4
5
9
7
9
6
5
5
6
6
6
6
  • 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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