Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Issued: 7 pm 23 Jun 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
15.2° C

Slightly cooler than normal

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 (24 Jun):

  • Morning surf: Morning surf (24 Jun, local time) - 1ft (0.3m), 5s period with E swell.
  • Afternoon surf: Afternoon surf (24 Jun, local time) - 1ft (0.3m), 5s period with E swell.
  • Evening surf: Evening surf (24 Jun, local time) - 1ft (0.3m), 6s period with ESE swell.

The current surf forecast for Nantasket Beach at 2AM is: 0.4m 5s primary swell from a East-southeast direction and 0.1m 7s secondary swell from a East direction (forecast issued at 07:00pm June 23). The wind direction is predicted to be glassy.

Time (EDT) & DateWave HeightWave Period
Morning (24 Jun)1ft (0.3m)5s
Afternoon (24 Jun)1ft (0.3m)5s
Evening (24 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 8mm), mostly falling on Thu night. Warm (max 27°C on Wed afternoon, min 16°C on Thu night). Wind will be generally light.

Tue
23
Wednesday
24
Thursday
25
Fri
26
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
11 AM
2 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 Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
ESE
5
0.3
E
5
0.4
E
5
0.4
ESE
5
0.3
E
5
0.3
E
5
0.3
E
5
0.3
E
5
0.3
E
5
0.3
ESE
7
0.3
E
5
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
E
6
0.2
E
5
0.4
SE
4
0.4
SSE
4
0.3
SE
4
0.1
E
8
0.4
SE
3
0.6
SE
4
0.4
SE
4
Wave Graph
Metric surfscale
Energy kJ
8
4
7
8
4
4
5
5
5
9
5
6
6
7
7
3
3
4
5
2
2
2
14
4
Wind (km/h)
5
NNW
0
SSE
5
S
5
WSW
10
NW
10
NW
10
NW
10
NW
10
WNW
10
NNW
10
W
10
WNW
10
W
5
SW
5
SW
10
SE
10
SE
10
WNW
5
NNE
20
SW
20
SSW
15
WSW
5
WSW
10
SSW
Wind State
glassy
glassy
glassy
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
off
cross-off
cross-off
cross-on
cross-on
cross-off
glassy
cross-off
cross-off
cross-off
off
cross-off
High Tide
7:23PM2.83m
7:58AM2.51m
8:16PM2.83m
8:58AM2.46m
9:06PM2.83m
9:51AM2.44m
Low Tide
1:46AM0.30m
1:56PM0.44m
2:45AM0.28m
2:49PM0.51m
3:39AM0.24m
light rain
light rain
cloud
cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
light rain
light rain
rain showers
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
5:07
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:23
8:23
8:23
 mm
1
1
1
4
2
Temp °C
18
18
18
18
17
17
22
25
27
24
21
20
19
20
24
26
25
21
17
17
16
17
20
22
Feels °C
20
20
20
19
17
16
21
23
24
22
19
18
18
19
23
24
24
20
18
15
14
16
20
22
Swell 1
Height (m)
Direction
Period (s)
0.4
ESE
5
0.3
E
5
0.4
E
5
0.4
ESE
5
0.3
E
5
0.3
E
5
0.3
E
5
0.3
E
5
0.3
E
5
0.3
ESE
7
0.3
E
5
0.2
E
5
0.2
ESE
8
0.2
ESE
8
0.2
ESE
8
0.2
E
6
0.2
E
5
0.1
E
5
0.3
SE
4
0.1
SE
6
0.1
SE
6
0.4
SE
4
0.4
SE
4
Energy kJ
8
4
7
8
4
4
4
4
4
9
5
2
6
7
7
3
2
1
2
2
1
6
4
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
5
0.1
E
6
0.1
E
7
0.1
E
8
0.1
SE
7
0.2
ESE
7
0.2
ESE
7
0.2
ESE
7
0.1
E
8
0.2
ESE
7
0.2
ESE
8
0.2
E
6
0.2
E
6
0.1
SE
8
0.1
SE
8
0.1
E
8
0.1
E
7
0.1
SE
7
0.1
E
12
0.1
SE
6
Energy kJ
2
1
1
1
2
5
5
5
1
5
6
3
3
3
3
1
1
2
3
2
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
8
0.1
E
6
0.1
E
6
0.1
E
6
0.1
E
9
0.1
E
8
0.1
E
6
0.1
E
6
0.1
E
6
0.1
SE
5
0.1
SE
5
0.1
E
8
0.1
E
8
0.1
E
5
0.1
E
8
0.1
E
8
0.1
E
8
0.1
E
12
Energy kJ
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
Wind waves
Height (m)
Direction
Period (s)
0.3
NNE
3
0.4
SE
4
0.4
SSE
4
0.2
SSE
4
0.4
SE
3
0.6
SE
4
Energy kJ
2
4
5
2
2
14
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
Distance (km)
117
117
98
128
113
58
58
58
108
91
91
91
85
85
131
961
534
523
55
228
69
69
12
58
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
1
1
2
3
3
3
4
1
1
1
2
3
3
3
3
2
2
2
2
3
3
3
2
2
Header Global
Rating
(10 max)
7
8
9
9
9
9
8
7
6
5
5
6
5
5
5
4
5
5
5
6
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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