Merrimacport, Merrimack River Sea Conditions and Tide Table

Merrimacport, Merrimack River 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 07:00 AM and sunset is at 04:08 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 2°C on Sun morning, min -8°C on Mon night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 4mm), mostly falling on Wed night. Icy conditions (max 7°C on Wed afternoon, min -2°C on Thu afternoon). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Temperatures will be below freezing (max -1°C on Mon afternoon, min -7°C on Sat night). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 3°C on Thu night, min -6°C on Tue afternoon). Wind will be generally light.

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thu
18
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
1:56PM2.62m
2:30AM2.02m
2:47PM2.53m
3:22AM2.00m
3:40PM2.41m
4:17AM1.98m
4:34PM2.27m
5:11AM1.98m
5:28PM2.14m
6:04AM1.98m
6:22PM2.02m
6:57AM1.99m
7:17PM1.91m
7:50AM2.02m
8:13PM1.83m
8:42AM2.05m
9:06PM1.79m
9:29AM2.09m
9:55PM1.76m
10:13AM2.13m
10:40PM1.75m
10:56AM2.16m
Low Tide
8:03AM0.04m
8:48PM-0.22m
8:56AM0.08m
9:40PM-0.15m
9:51AM0.13m
10:33PM-0.08m
10:48AM0.18m
11:25PM-0.01m
11:44AM0.22m
00:17AM0.06m
12:41PM0.25m
1:08AM0.13m
1:38PM0.26m
2:00AM0.19m
2:34PM0.24m
2:51AM0.23m
3:27PM0.21m
3:39AM0.26m
4:16PM0.18m
4:25AM0.29m
5:04PM0.15m
5:10AM0.31m
5:50PM0.13m
Wave
height (m) 
direction
period (s) 
0.4
SE
9
0.6
ESE
9
0.8
ESE
9
1
N
4
0.8
E
8
0.6
E
8
0.3
E
9
0.5
SE
5
0.9
S
4
0.6
SSW
4
1.2
S
5
1
SSW
4
0.5
W
3
0.4
WNW
3
0.3
SE
10
0.3
SE
8
0.5
NE
4
0.5
NW
3
0.4
SE
7
0.2
ESE
8
0.3
ESE
8
0.3
ENE
4
0.6
NW
3
0.5
WNW
3
0.3
SSW
4
0.2
ESE
9
0.2
ESE
9
1.4
NE
5
2.1
NE
6
2.5
E
9
2.5
E
10
2.2
E
11
1.5
E
11
1
E
11
0.9
E
10
part cloud
cloud
clear
clear
clear
clear
part cloud
cloud
rain showers
cloud
light rain
rain showers
clear
part cloud
cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
cloud
some clouds
cloudy
clear
clear
clear
clear
some clouds
cloudy
rain shwrs
cloudy
light rain
rain shwrs
clear
some clouds
cloudy
some clouds
some clouds
clear
some clouds
clear
clear
clear
clear
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
clear
clear
clear
some clouds
cloudy
 km/h
10
WNW
5
SSE
20
W
20
NNW
15
NW
5
WNW
10
SW
10
SSW
20
SW
15
SSW
25
SW
20
SW
15
WNW
10
WNW
5
SW
10
WNW
15
NW
15
WNW
10
NW
5
NW
10
NW
15
NW
20
NW
15
W
10
W
5
NW
10
NNE
20
NNE
20
NNE
20
N
15
NW
15
NW
10
NW
5
SSW
10
S
 mm 
1
1
2
max°C
2
2
0
-6
-6
-8
-3
-1
2
6
7
5
1
0
-2
2
0
-4
-2
-2
-5
-3
-3
-5
-2
-1
-3
-3
-4
-4
1
0
-2
1
1
Moonrise
7:04
8:22
9:36
10:45
11:52
12:55
1:58
3:02
4:06
5:10
6:13
Moonset
10:02
10:39
11:08
11:32
11:52
12:10
12:28
12:47
1:09
1:34
2:05
2:43
Sunrise
7:00
7:01
7:01
7:03
7:03
7:05
7:05
7:05
7:07
7:07
7:09
7:09
Sunset
4:08
4:08
4:08
4:08
4:08
4:08
4:09
4:09
4:09
4:09
4:10
4:10
Today's sea temperature in Merrimacport, Merrimack River is
8.1° C
(Statistics for 07 Dec 1981-2005 – mean: 8.2 max: 10.0 min: 6.7°C)
Issued (local time): 12 am Sunday 07 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest