Nahant Sea Conditions and Tide Table

Nahant Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 07:07 AM and sunset is at 04:12 PM.

Days 1–3 Weather Summary

Moderate rain (total 14mm) heaviest on Fri morning, then becoming colder with a dusting of snow on Fri night. Icy conditions (max 14°C on Thu night, min -3°C on Fri night). Winds increasing (light winds from the W on Wed night, strong winds from the SSE by Fri morning).

Days 4–6 Weather Summary

Mostly dry. Icy conditions (max 7°C on Sun morning, min -5°C on Mon morning). Mainly fresh winds.

Days 7–9 Weather Summary

A light covering of new snow, mostly falling on Fri afternoon. Freeze-thaw conditions (max 4°C on Tue night, min -4°C on Wed night). Wind will be generally light.

Days 10–12 Weather Summary

A dusting of new snow. Temperatures will be below freezing (max -2°C on Fri night, min -13°C on Sat night). Winds decreasing (fresh winds from the NW on Fri night, calm by Mon morning).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Mon
29
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
9:53AM2.82m
10:33PM2.44m
10:33AM2.85m
11:13PM2.46m
11:12AM2.87m
11:52PM2.47m
11:51AM2.87m
00:31AM2.47m
12:30PM2.87m
1:11AM2.49m
1:11PM2.85m
1:51AM2.51m
1:54PM2.82m
2:34AM2.56m
2:40PM2.78m
3:19AM2.62m
3:30PM2.72m
4:06AM2.70m
4:24PM2.67m
4:57AM2.80m
5:22PM2.63m
5:51AM2.92m
6:23PM2.62m
Low Tide
4:18PM0.14m
4:17AM0.45m
4:58PM0.11m
4:58AM0.43m
5:36PM0.08m
5:38AM0.41m
6:15PM0.07m
6:19AM0.41m
6:55PM0.06m
7:01AM0.40m
7:35PM0.06m
7:45AM0.39m
8:17PM0.07m
8:31AM0.38m
9:02PM0.08m
9:22AM0.34m
9:49PM0.10m
10:16AM0.29m
10:40PM0.13m
11:14AM0.20m
11:33PM0.15m
12:14PM0.09m
Wave
height (m) 
direction
period (s) 
0.2
ESE
10
0.6
SSE
3
1.1
SE
5
2.5
SE
7
2.3
SE
9
1.5
S
6
1
ESE
11
0.7
ESE
11
1.1
S
4
1.1
SSE
6
0.8
ESE
9
0.8
S
6
0.9
WNW
4
0.8
NNE
6
0.4
ESE
9
0.8
SSW
4
1.2
SSW
4
0.7
WSW
4
0.6
WNW
3
0.6
NW
3
0.2
ENE
7
0.6
S
3
0.3
SSE
4
0.5
NE
4
0.7
ENE
4
0.8
E
4
0.8
E
5
0.8
E
6
0.6
NNE
5
0.6
NW
3
0.6
NW
3
0.7
NW
3
0.4
NE
7
0.2
ENE
7
0.2
ENE
6
clear
clear
rain showers
mod rain
light rain
snow showers
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
clear
clear
cloud
cloud
part cloud
part cloud
light snow
light snow
clear
clear
clear
clear
clear
clear
part cloud
cloud
light snow
clear
clear
rain shwrs
mod rain
light rain
snow shwrs
clear
some clouds
some clouds
some clouds
clear
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
clear
clear
cloudy
cloudy
some clouds
some clouds
light snow
light snow
clear
clear
clear
clear
clear
clear
some clouds
cloudy
light snow
 km/h
10
S
20
S
20
S
45
SSE
20
SW
35
W
20
WNW
10
SW
25
SSW
25
WSW
20
WNW
25
WNW
30
NW
25
NW
15
WSW
25
SW
30
SW
20
W
25
NW
20
NW
5
S
20
SW
10
NNW
10
NE
20
ESE
15
ENE
25
NW
25
NW
20
NW
25
NW
25
NW
25
NW
10
NW
5
W
5
S
 mm 
1
9
4
max°C
4
4
14
14
9
1
1
2
6
7
4
-1
-3
-3
-2
3
3
4
0
-1
-1
2
2
1
2
1
-2
-5
-5
-9
-8
-8
-9
-7
-5
Moonrise
6:11
7:09
8:01
8:45
9:21
9:51
10:15
10:38
10:58
11:19
11:41
12:06
Moonset
2:44
3:31
4:27
5:29
6:36
7:44
8:53
10:01
11:10
12:21
1:36
Sunrise
7:07
7:07
7:09
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:11
Sunset
4:12
4:13
4:13
4:13
4:14
4:14
4:15
4:15
4:15
4:16
4:17
4:19
Today's sea temperature in Nahant is
6.6° C
(Statistics for 18 Dec 1981-2005 – mean: 7.4 max: 9.7 min: 5.6°C)
Issued (local time): 12 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest