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 07:07 AM and sunset is at 04:09 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 14°C on Thu night, min -3°C on Tue afternoon). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 9mm), mostly falling on Fri morning. Icy conditions (max 15°C on Fri morning, min -6°C on Sun night). Winds decreasing (strong winds from the S on Fri morning, light winds from the SSW by Sat afternoon).

Days 7–9 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 2°C on Wed morning, min -9°C on Mon night). Wind will be generally light.

Days 10–12 Weather Summary

Heavy rain (total 29mm), heaviest during Sun morning. Freeze-thaw conditions (max 6°C on Fri night, min -2°C on Thu morning). Wind will be generally light.

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
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
9:29AM2.09m
9:55PM1.76m
10:13AM2.13m
10:40PM1.75m
10:56AM2.16m
11:25PM1.75m
11:39AM2.19m
00:09AM1.76m
12:23PM2.23m
00:52AM1.79m
1:05PM2.26m
1:35AM1.82m
1:48PM2.28m
2:18AM1.86m
2:31PM2.29m
3:03AM1.90m
3:17PM2.27m
3:51AM1.95m
4:07PM2.24m
4:42AM2.01m
4:59PM2.20m
5:33AM2.09m
5:52PM2.14m
6:26AM2.17m
Low Tide
4:16PM0.18m
4:25AM0.29m
5:04PM0.15m
5:10AM0.31m
5:50PM0.13m
5:55AM0.32m
6:36PM0.12m
6:39AM0.33m
7:19PM0.10m
7:21AM0.32m
8:01PM0.09m
8:02AM0.32m
8:43PM0.08m
8:45AM0.32m
9:27PM0.07m
9:31AM0.31m
10:13PM0.07m
10:21AM0.30m
11:00PM0.07m
11:16AM0.27m
11:48PM0.07m
12:12PM0.23m
00:38AM0.09m
Wave
height (m) 
direction
period (s) 
0.2
ESE
10
0.3
ESE
10
0.7
SSW
4
1.2
SSW
4
1
SSW
4
0.9
WNW
4
0.2
ESE
10
0.6
SSE
3
0.9
SE
6
1.9
SE
6
2.5
SE
9
1.4
SE
10
1.2
ESE
11
0.8
ESE
10
0.7
ESE
10
0.8
ESE
12
0.6
ESE
11
1
NNE
6
1.1
NW
4
1.3
NNW
4
1
NNW
4
0.5
E
10
0.6
SSW
3
0.9
SSW
4
0.5
S
5
0.7
NW
4
0.3
NNE
4
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
0.5
E
3
0.8
SE
4
0.7
SE
5
0.6
NW
4
0.3
ESE
6
0.6
E
3
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
light rain
light rain
clear
clear
part cloud
cloud
clear
clear
clear
clear
clear
clear
cloud
cloud
snow showers
part cloud
clear
cloud
cloud
cloud
cloud
light rain
light rain
part cloud
part cloud
cloud
heavy rain
clear
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
light rain
light rain
clear
clear
some clouds
cloudy
clear
clear
clear
clear
clear
clear
cloudy
cloudy
snow shwrs
some clouds
clear
cloudy
cloudy
cloudy
cloudy
light rain
light rain
some clouds
some clouds
cloudy
heavy rain
 km/h
10
WSW
5
S
15
SW
20
SW
20
SW
15
WNW
10
S
10
S
5
SSE
30
S
30
WNW
25
W
25
WNW
15
WNW
15
SSW
15
WSW
10
WSW
20
WNW
25
WNW
25
NW
20
NW
5
SW
15
SSW
20
WSW
15
WNW
15
NW
5
NNW
10
SSW
5
S
5
NNE
5
ENE
5
SSE
15
W
20
NW
5
WNW
5
ESE
 mm 
4
5
4
2
14
max°C
0
0
-1
5
6
4
4
4
14
15
9
2
0
0
2
6
4
0
-4
-6
-7
-4
-1
0
2
-2
-4
0
0
0
3
3
6
4
3
5
Moonrise
4:06
5:10
6:13
7:11
8:03
8:47
9:23
9:52
10:17
10:38
10:59
11:19
Moonset
1:34
2:05
2:43
3:30
4:25
5:28
6:35
7:44
8:52
10:01
11:11
Sunrise
7:07
7:09
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:13
7:13
7:13
Sunset
4:09
4:10
4:10
4:10
4:12
4:12
4:13
4:13
4:14
4:15
4:15
4:15
Today's sea temperature in Merrimacport, Merrimack River is
7.2° C
(Statistics for 16 Dec 1981-2005 – mean: 7.4 max: 9.3 min: 6.0°C)
Issued (local time): 12 pm Tuesday 16 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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