Nantasket Beach Surf Break

Lat Long: 42.31° N 70.88° W

Nantasket Beach 48 hour detailed Surf Forecast

Issued: 1 am 24 Oct 2026 (local time)

Forecast update in  hr  min

Today's Nantasket Beach sea temperature is
13.6°C
0.4° 

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 Oct):

  • Morning surf: Morning surf (24 Oct, local time) - 3.5ft (1.1m), 10s period with ENE swell.
  • Afternoon surf: Afternoon surf (24 Oct, local time) - 4ft (1.2m), 12s period with ENE swell.
  • Evening surf: Evening surf (24 Oct, local time) - 3.5ft (1.0m), 13s period with ENE swell.

The current surf forecast for Nantasket Beach at 6AM is: 1.2m 9s primary swell from a East-northeast direction (forecast issued at 01:00am October 24). The wind direction is predicted to be offshore and the swell rating is 2.

Time (EDT) & DateWave HeightWave Period
Morning (24 Oct)3.5ft (1.1m)10s
Afternoon (24 Oct)4ft (1.2m)12s
Evening (24 Oct)3.5ft (1.0m)13s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Mon afternoon, min 7°C on Sat morning). Wind will be generally light.

Saturday
24
Sunday
25
Monday
26
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)
2
2
1
2
2
1
1
2
2
2
2
1
0
0
1
1
1
1
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)
1.3
ENE
9
1.2
ENE
9
1.1
ENE
9
1.1
ENE
11
1.2
ENE
12
1.1
ENE
12
1
ENE
12
1
ENE
13
0.9
ENE
13
0.8
ENE
13
0.8
ENE
13
0.7
ENE
12
0.7
ENE
12
0.6
ENE
12
0.6
E
11
0.6
E
11
0.5
E
11
0.5
E
11
0.4
ENE
10
0.4
ENE
10
0.4
ENE
10
0.4
E
10
0.3
ENE
9
0.3
ENE
9
Wave Graph
Metric surfscale
Energy kJ
261
222
188
280
368
328
329
356
277
218
212
152
147
107
93
86
58
57
35
32
31
28
17
17
Wind (km/h)
5
NW
5
WNW
5
W
5
WNW
5
NNW
5
ESE
10
SSE
10
SSW
5
W
5
WNW
5
WNW
5
SSW
5
S
10
S
15
SSW
15
SW
15
SW
15
WSW
15
WSW
10
W
10
W
10
WNW
10
WNW
15
NNW
Wind State
cross-off
off
off
off
glassy
on
cross
cross-off
off
off
off
glassy
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
cross-off
cross-off
High Tide
10:15AM2.97m
10:39PM2.90m
10:55AM3.15m
11:24PM2.96m
11:36AM3.28m
Low Tide
4:00AM0.15m
4:27PM0.02m
4:42AM0.06m
5:12PM-0.16m
5:24AM0.00m
5:57PM-0.28m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
7:05
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—
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7:07
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—
—
—
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—
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7:07
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—
—
—
—
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
5:47
—
—
—
—
—
—
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5:46
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—
—
—
—
—
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5:45
—
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
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—
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—
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Temp °C
9
8
7
8
12
14
13
12
12
11
10
11
15
16
14
13
12
11
10
13
19
20
17
15
Feels °C
6
5
4
5
9
11
9
9
9
8
7
8
12
12
10
9
7
7
5
9
15
17
14
11
  • 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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