Merrimack River Entrance Sea Conditions and Tide Table

Merrimack River Entrance 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 05:39 AM and sunset is at 07:42 PM.

Days 1–3 Weather Summary

Light rain (total 3mm), mostly falling on Wed morning. Cool air temperatures (max 13°C on Mon morning, min 5°C on Wed morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 14°C on Thu afternoon, min 7°C on Thu morning). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 6mm), mostly falling on Mon night. Very mild (max 18°C on Sun afternoon, min 9°C on Tue night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 2mm), mostly falling on Wed morning. Very mild (max 13°C on Wed afternoon, min 6°C on Wed night). Wind will be generally light.

Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
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
night
Wave Height Map
High Tide
4:09PM2.31m
4:17AM2.66m
5:05PM2.32m
5:16AM2.65m
6:07PM2.38m
6:21AM2.65m
7:11PM2.48m
7:29AM2.67m
8:13PM2.62m
8:34AM2.71m
9:11PM2.79m
9:36AM2.76m
10:05PM2.94m
10:34AM2.78m
10:56PM3.05m
11:29AM2.78m
11:45PM3.12m
12:21PM2.75m
00:34AM3.12m
1:12PM2.69m
1:22AM3.06m
2:03PM2.59m
2:12AM2.97m
Low Tide
9:59AM0.08m
10:07PM0.46m
10:54AM0.13m
11:05PM0.48m
11:54AM0.15m
00:11AM0.46m
12:56PM0.13m
1:20AM0.36m
1:57PM0.07m
2:26AM0.20m
2:56PM-0.02m
3:28AM-0.01m
3:51PM-0.10m
4:26AM-0.21m
4:43PM-0.16m
5:20AM-0.36m
5:33PM-0.18m
6:12AM-0.45m
6:22PM-0.15m
7:02AM-0.45m
7:11PM-0.07m
7:52AM-0.38m
8:00PM0.05m
Wave
height (m) 
direction
period (s) 
0.5
E
9
0.6
E
12
0.5
E
10
0.6
E
10
0.6
E
10
0.6
E
9
0.6
E
10
0.6
E
4
0.5
E
7
0.4
E
10
0.6
E
10
0.5
E
10
0.5
E
9
0.4
E
9
0.5
E
5
0.4
ENE
6
0.7
SE
3
0.5
SE
4
0.3
E
11
0.4
ESE
5
0.6
ESE
6
0.9
SE
5
0.9
SE
6
0.7
E
10
0.7
E
10
0.7
ESE
10
0.6
E
10
0.6
ESE
10
0.6
NE
5
0.6
NNE
4
0.7
NNW
3
0.3
ESE
8
0.4
E
10
0.4
E
10
0.5
E
16
0.4
ESE
15
part cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
clear
part cloud
rain showers
light rain
light rain
light rain
clear
part cloud
part cloud
light rain
rain showers
clear
part cloud
cloud
part cloud
clear
part cloud
part cloud
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
light rain
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
cloudy
clear
some clouds
rain shwrs
light rain
light rain
light rain
clear
some clouds
some clouds
light rain
rain shwrs
clear
some clouds
cloudy
some clouds
clear
some clouds
some clouds
 km/h
10
ENE
15
SSE
5
SE
15
E
10
ESE
15
SE
15
ENE
10
NE
0
E
10
S
15
SSE
15
NNW
15
ENE
10
E
10
S
15
S
20
SSE
10
SSW
5
SE
15
SE
15
S
15
SSW
20
SSW
15
W
25
W
25
WNW
25
W
25
WNW
25
WNW
20
WNW
25
NW
5
NE
15
NW
15
ENE
15
SSE
5
W
 mm 
3
1.0
1.0
2.0
2.0
1.0
1.0
max°C
13
13
13
7
6
7
6
6
6
11
14
12
8
9
7
8
12
11
15
18
17
13
15
15
15
16
12
9
13
11
10
11
11
11
13
12
Moonrise
1:01
1:48
2:26
2:57
3:23
3:46
4:08
4:31
4:56
5:27
6:04
6:50
Moonset
9:22
10:34
11:50
1:08
2:26
3:44
5:02
6:21
7:42
9:02
10:18
11:25
Sunrise
5:39
5:37
5:35
5:35
5:33
5:31
5:31
5:30
5:28
5:26
5:26
5:24
Sunset
7:42
7:43
7:44
7:45
7:45
7:46
7:49
7:50
7:51
7:52
7:52
7:53
Today's sea temperature in Merrimack River Entrance is 7.6 °C (Statistics for 29 Apr 1981-2005 – mean: 6.9 max: 8.3 min: 5.5°C)
Nearest