Riverside, Merrimack River Sea Conditions and Tide Table

Riverside, 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 06:16 AM and sunset is at 05:36 PM.

Days 1–3 Weather Summary

A light covering of new snow, mostly falling on Tue afternoon. Icy conditions (max 8°C on Wed afternoon, min -5°C on Mon night). Wind will be generally light.

Days 4–6 Weather Summary

A moderate fall of snow, heaviest on Thu night. Icy conditions (max 10°C on Sun morning, min -2°C on Fri morning). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 6mm), mostly falling on Tue night. Warm (max 20°C on Wed afternoon, min 2°C on Mon night). Wind will be generally light.

Days 10–12 Weather Summary

A dusting of snow turning to light rain (total 8mm) on Fri night. Freeze-thaw conditions (max 18°C on Wed night, min -1°C on Fri morning). Wind will be generally light.

Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Saturday
7
Sunday
8
Monday
9
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wed
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
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
Wave Height Map
High Tide
12:43PM1.76m
1:06AM1.60m
1:29PM1.74m
1:51AM1.67m
2:13PM1.71m
2:35AM1.72m
2:57PM1.67m
3:19AM1.75m
3:41PM1.62m
4:03AM1.76m
4:27PM1.57m
4:50AM1.76m
5:14PM1.51m
5:38AM1.73m
6:03PM1.45m
6:27AM1.70m
6:54PM1.40m
7:19AM1.67m
7:46PM1.36m
8:13AM1.65m
8:39PM1.34m
9:06AM1.65m
9:33PM1.36m
10:00AM1.66m
10:27PM1.41m
10:52AM1.70m
11:18PM1.49m
11:43AM1.74m
Low Tide
7:34AM-0.05m
8:07PM-0.09m
8:23AM-0.06m
8:50PM-0.06m
9:10AM-0.06m
9:32PM-0.02m
9:56AM-0.04m
10:14PM0.03m
10:41AM0.00m
10:55PM0.09m
11:28AM0.05m
11:38PM0.16m
12:17PM0.10m
00:25AM0.22m
1:10PM0.15m
1:17AM0.27m
2:06PM0.19m
2:14AM0.30m
3:04PM0.20m
3:12AM0.30m
3:59PM0.20m
4:07AM0.28m
4:52PM0.17m
4:59AM0.24m
5:41PM0.13m
5:49AM0.20m
6:26PM0.10m
6:36AM0.13m
Wave
height (m) 
direction
period (s) 
cloud
light snow
snow showers
clear
part cloud
cloud
cloud
cloud
mod snow
light snow
cloud
cloud
light snow
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
light rain
light rain
rain showers
light rain
part cloud
clear
part cloud
light snow
cloud
rain showers
rain showers
clear
clear
part cloud
light snow
light snow
cloud
cloud
part cloud
clear
cloud
part cloud
cloud
cloudy
light snow
snow shwrs
clear
some clouds
cloudy
cloudy
cloudy
mod snow
light snow
cloudy
cloudy
light snow
cloudy
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
some clouds
some clouds
light rain
light rain
rain shwrs
light rain
some clouds
clear
some clouds
light snow
cloudy
rain shwrs
rain shwrs
clear
clear
some clouds
light snow
light snow
cloudy
cloudy
some clouds
clear
cloudy
some clouds
cloudy
 km/h
15
SSW
5
SSE
5
WSW
10
W
5
WNW
0
SSW
5
NNE
5
NE
15
ENE
20
NE
15
ENE
5
ESE
5
SSW
15
SSW
20
SW
15
NW
5
WNW
10
SSW
20
WSW
20
WNW
5
W
10
SE
15
S
20
SSW
15
SW
10
SW
5
N
15
NW
15
N
10
E
15
ESE
10
ESE
20
SW
20
W
25
NW
10
NW
10
SSE
15
SSE
5
SE
5
NNW
10
W
15
NW
15
NW
5
W
10
WSW
15
W
 mm 
3
2
1
3
4
1
max°C
-2
0
2
6
8
4
0
0
1
-1
-1
-1
1
6
9
10
10
6
15
13
5
10
11
13
16
20
18
9
10
4
0
4
14
14
10
-1
4
4
1
3
7
3
3
5
1
3
Moonrise
6:04
7:12
8:19
9:25
10:31
12:36
1:40
2:39
3:32
4:16
4:53
5:24
5:49
6:12
6:33
Moonset
6:18
6:38
6:57
7:17
7:39
9:04
9:34
10:11
10:57
11:51
12:52
1:59
3:09
4:20
5:31
Sunrise
6:16
6:13
6:13
6:11
6:09
7:07
6:05
6:03
6:03
6:01
5:58
5:58
5:56
5:54
5:52
5:50
Sunset
5:36
5:37
5:37
5:39
5:40
6:42
5:43
5:44
5:45
5:46
5:47
5:49
5:50
5:51
5:52
Today's sea temperature in Riverside, Merrimack River is
2.4° C
(Statistics for 03 Mar 1981-2005 – mean: 3.2 max: 4.5 min: 1.9°C)
Issued (local time): 12 am Tuesday 03 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest