Nahant Beach Surf Break

Lat Long: 42.42° N 70.90° W

Issued: 1 pm 21 Jun 2026 (local time)

Forecast update in  hr  min

Today's Nahant Beach sea temperature is
15.7° C

Normal for this time of year

Nahant 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 Nahant Beach today (21 Jun):

  • Morning surf: Morning surf (21 Jun, local time) - 0.5ft (0.1m), 12s period with E swell.
  • Afternoon surf: Afternoon surf (21 Jun, local time) - 0.5ft (0.1m), 12s period with E swell.
  • Evening surf: Evening surf (21 Jun, local time) - 0.5ft (0.1m), 8s period with SE swell.

The current surf forecast for Nahant Beach at 6PM is: 0.1m 8s primary swell from a Southeast direction and 0.1m 12s secondary swell from a East direction (forecast issued at 01:00pm June 21). The wind direction is predicted to be glassy.

Time (EDT) & DateWave HeightWave Period
Morning (21 Jun)0.5ft (0.1m)12s
Afternoon (21 Jun)0.5ft (0.1m)12s
Evening (21 Jun)0.5ft (0.1m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 22mm), heaviest during Mon night. Warm (max 26°C on Sun afternoon, min 14°C on Mon night). Wind will be generally light.

Sun
21
Monday
22
Tuesday
23
Wed
24
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
5 AM
8 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
Wave
Height (m)
Direction
Period (s)
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
11
0.4
ESE
3
0.5
SE
4
0.8
SSE
5
0.7
SE
4
0.6
SE
4
0.4
SE
4
0.4
SE
4
0.3
SE
4
0.3
ESE
4
0.3
E
4
0.4
SE
7
0.4
ESE
6
Wave Graph
Metric surfscale
Energy kJ
3
3
3
3
3
3
3
3
2
2
2
2
3
6
27
20
16
7
5
3
4
3
12
13
Wind (km/h)
10
W
10
W
10
NNE
0
SSW
10
W
5
WNW
10
W
5
WSW
5
SSW
20
WSW
5
NE
15
ESE
15
ESE
10
ESE
10
SE
5
NW
10
N
10
N
5
N
0
E
5
W
5
W
10
NW
10
WNW
Wind State
off
off
cross-on
glassy
off
off
off
off
glassy
cross-off
glassy
on
cross-on
cross-on
cross-on
cross-off
cross
cross
cross
glassy
glassy
off
cross-off
cross-off
High Tide
5:34PM2.83m
5:54AM2.73m
6:29PM2.80m
6:55AM2.59m
7:23PM2.79m
7:54AM2.49m
Low Tide
11:09AM0.05m
11:38PM0.27m
12:04PM0.20m
00:40AM0.31m
12:58PM0.33m
1:41AM0.32m
clear
cloud
clear
clear
clear
clear
cloud
cloud
cloud
cloud
mod rain
mod rain
light rain
cloud
light rain
light rain
light rain
light rain
rain showers
part cloud
clear
clear
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:07
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:23
8:23
8:23
8:23
 mm
6
7
1
2
2
2
1
1
Temp °C
24
26
24
23
21
19
19
20
23
19
16
15
14
16
18
18
16
16
17
17
17
16
16
18
Feels °C
22
24
22
23
20
18
18
20
22
16
17
14
12
16
19
20
16
16
18
19
18
16
16
17
Swell 1
Height (m)
Direction
Period (s)
0.1
SE
9
0.1
SE
9
0.1
SE
8
0.1
SE
5
0.1
SE
5
0.1
SE
7
0.1
SE
7
0.1
SE
7
0.1
SE
6
0.1
SE
6
0.1
E
11
0.1
E
11
0.6
SE
4
0.6
SE
4
0.5
SE
4
0.4
SE
4
0.4
SE
4
0.3
SE
4
0.3
ESE
4
0.3
E
4
0.4
SE
7
0.4
ESE
6
Energy kJ
3
3
3
1
1
2
2
2
2
2
2
2
12
13
9
7
5
3
4
3
12
13
Swell 2
Height (m)
Direction
Period (s)
0.1
E
12
0.1
E
12
0.1
E
12
0.1
SE
8
0.1
SE
8
0.1
SE
8
0.1
SE
7
0.1
E
12
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
8
0.1
E
11
0.1
E
11
0.1
E
8
0.1
E
8
0.1
E
8
0.2
E
4
0.2
SSE
5
0.1
SE
5
0.3
E
5
0.2
NNE
3
Energy kJ
3
3
3
3
2
2
2
3
2
2
2
2
1
2
2
1
1
1
1
3
1
4
1
Swell 3
Height (m)
Direction
Period (s)
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
9
0.1
E
8
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
8
0.1
SE
8
0.1
SE
7
0.2
NNE
3
0.1
SE
7
Energy kJ
3
3
3
3
3
1
1
2
2
2
1
2
2
1
2
Wind waves
Height (m)
Direction
Period (s)
0.4
ESE
3
0.5
SE
4
0.8
SSE
5
0.7
SE
4
0.6
SE
4
0.3
N
2
0.2
NNE
3
0.2
NNE
3
0.4
NNE
3
Energy kJ
3
6
27
20
16
1
1
1
3
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
123
650
218
411
103
127
190
657
3312
2695
320
3558
1243
338
288
123
123
102
108
127
139
103
93
93
Best forecast wave conditions in Massachusetts
Rating
(10 max)
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
1
1
2
3
3
3
3
2
1
2
2
2
2
3
3
3
1
1
2
2
3
3
3
Header Global
Rating
(10 max)
7
7
7
6
6
5
7
6
6
5
5
5
5
6
5
5
5
6
7
8
9
9
9
8
  • 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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