Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Issued: 1 am 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
18.5° C

Slightly warmer than usual

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 (03 Jul):

  • Morning surf: Morning surf (03 Jul, local time) - 0.5ft (0.2m), 9s period with ESE swell.
  • Afternoon surf: Afternoon surf (03 Jul, local time) - 0.5ft (0.2m), 9s period with ESE swell.
  • Evening surf: Evening surf (03 Jul, local time) - 0.5ft (0.2m), 9s period with ESE swell.

The current surf forecast for Nantasket Beach at 9AM is: 0.2m 9s primary swell from a East-southeast direction and 0.1m 7s secondary swell from a East direction (forecast issued at 01:00am July 03). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (03 Jul)0.5ft (0.2m)9s
Afternoon (03 Jul)0.5ft (0.2m)9s
Evening (03 Jul)0.5ft (0.2m)9s

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 2mm), mostly falling on Sat afternoon. Warm (max 36°C on Fri afternoon, min 20°C on Sun night). Wind will be generally light.

Friday
3
Saturday
4
Sunday
5
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
5 PM
8 PM
11 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)
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.3
NE
4
0.2
ESE
8
0.2
ESE
8
0.2
ESE
9
Wave Graph
Metric surfscale
Energy kJ
8
8
8
8
8
9
9
9
9
8
8
8
8
8
8
8
8
9
9
9
3
7
7
7
Wind (km/h)
15
W
10
W
15
WNW
15
WNW
15
WNW
15
W
20
WNW
15
NW
10
WNW
10
W
15
NW
10
NW
5
NNW
5
SE
5
SE
10
N
10
N
10
N
5
N
10
E
15
ESE
20
SE
10
SSE
10
SSW
Wind State
off
off
cross-off
cross-off
cross-off
off
off
cross-off
off
off
cross-off
cross-off
glassy
cross-on
glassy
cross
cross
cross
cross
on
on
cross-on
cross
cross-off
High Tide
1:55AM2.90m
2:31PM2.60m
2:34AM2.87m
3:09PM2.65m
3:16AM2.83m
3:50PM2.71m
Low Tide
8:16AM0.12m
8:24PM0.41m
8:53AM0.12m
9:06PM0.39m
9:32AM0.14m
9:52PM0.36m
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
rain showers
rain showers
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:11
5:11
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:22
8:22
 mm
1
1
Temp °C
28
26
29
33
36
36
34
30
27
25
28
32
33
30
27
25
23
21
22
25
26
24
24
22
Feels °C
30
28
30
32
34
35
33
30
28
25
28
31
33
31
29
23
22
20
22
23
23
21
23
21
Swell 1
Height (m)
Direction
Period (s)
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.4
NNE
4
0.4
NNE
4
0.4
NE
4
0.4
NE
4
0.3
NE
4
0.2
ESE
8
0.2
ESE
8
0.2
ESE
3
Energy kJ
8
8
8
8
8
9
9
9
9
8
8
8
8
8
8
8
6
7
5
4
2
7
7
1
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
5
0.1
E
7
0.1
E
7
0.1
SE
5
0.2
N
4
0.2
ESE
9
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.1
SE
8
0.2
ESE
9
Energy kJ
1
1
1
1
1
8
9
9
9
3
7
Swell 3
Height (m)
Direction
Period (s)
0.1
E
7
0.1
E
7
0.1
E
7
0.1
SE
4
0.1
E
10
0.1
E
10
Energy kJ
1
1
1
1
2
2
Wind waves
Height (m)
Direction
Period (s)
0.2
WNW
2
0.2
WNW
2
0.2
NNE
2
0.3
ESE
2
0.2
ESE
3
0.3
SSE
3
Energy kJ
1
1
1
1
1
2
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
2
1
1
1
1
Distance (km)
100
113
113
117
228
653
653
160
160
181
181
181
1949
2747
98
117
655
655
655
2684
2684
2684
1238
753
Best forecast wave conditions in Massachusetts
Rating
(10 max)
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
2
2
1
2
2
2
2
2
2
1
2
2
2
2
2
3
3
1
1
2
2
Header Global
Rating
(10 max)
9
9
7
8
5
5
5
7
5
4
5
5
4
5
5
9
9
9
8
6
7
7
5
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
How to use the Wavefinder 

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