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 06:01 AM and sunset is at 07:27 PM.

Days 1–3 Weather Summary

Light rain (total 3mm), mostly falling on Fri afternoon. Warm air temperatures (max 21°C on Fri morning, min 6°C on Sat night). Wind will be generally light.

Days 4–6 Weather Summary

Moderate rain (total 10mm), heaviest on Sun afternoon. Cool air temperatures (max 12°C on Tue afternoon, min 1°C on Sun night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Very mild (max 15°C on Wed afternoon, min 3°C on Fri night). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Very mild (max 18°C on Mon afternoon, min 3°C on Sat night). Wind will be generally light.

Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Fri
1
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
PM
Wave Height Map
High Tide
1:04PM1.74m
1:26AM1.89m
1:53PM1.75m
2:14AM2.00m
2:42PM1.75m
3:03AM2.08m
3:31PM1.73m
3:52AM2.12m
4:21PM1.69m
4:43AM2.12m
5:13PM1.64m
5:36AM2.07m
6:06PM1.59m
6:30AM2.00m
7:00PM1.55m
7:26AM1.91m
7:57PM1.52m
8:23AM1.81m
8:53PM1.52m
9:19AM1.72m
9:50PM1.54m
10:15AM1.64m
10:45PM1.58m
11:09AM1.58m
11:37PM1.64m
12:01PM1.55m
00:25AM1.69m
12:48PM1.53m
Low Tide
7:56AM0.04m
8:13PM0.09m
8:44AM-0.04m
8:55PM0.08m
9:33AM-0.09m
9:39PM0.08m
10:22AM-0.13m
10:24PM0.08m
11:13AM-0.13m
11:13PM0.09m
12:07PM-0.10m
00:07AM0.11m
1:03PM-0.06m
1:07AM0.14m
2:02PM-0.02m
2:11AM0.16m
3:02PM0.02m
3:16AM0.16m
4:00PM0.03m
4:19AM0.13m
4:55PM0.03m
5:18AM0.10m
5:48PM0.04m
6:13AM0.06m
6:37PM0.05m
7:05AM0.04m
7:23PM0.08m
7:54AM0.02m
Wave
height (m) 
direction
period (s) 
cloud
part cloud
rain showers
part cloud
light rain
part cloud
cloud
part cloud
part cloud
light rain
mod rain
rain showers
part cloud
part cloud
clear
clear
clear
cloud
part cloud
clear
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloudy
some clouds
rain shwrs
some clouds
light rain
some clouds
cloudy
some clouds
some clouds
light rain
mod rain
rain shwrs
some clouds
some clouds
clear
clear
clear
cloudy
some clouds
clear
some clouds
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
 km/h
5
NE
10
ESE
10
WSW
10
NNW
5
ENE
5
ENE
10
ESE
10
ESE
5
SSE
5
S
20
NW
15
WNW
20
NW
20
NW
5
W
10
WSW
15
SSW
20
SSW
25
W
25
NW
15
WNW
15
NW
10
NW
5
WSW
15
NNW
15
ENE
10
NNW
10
NNE
15
ENE
10
WNW
10
NW
15
NNW
10
NNW
5
NNW
5
NW
10
W
25
NNW
20
NNW
15
NW
20
NW
20
NW
10
W
20
WNW
15
NW
5
W
10
W
15
SSE
 mm 
1
2
1
6
3
max°C
9
17
17
21
14
13
8
10
8
10
10
4
6
7
4
7
12
8
14
15
9
8
12
10
10
12
7
9
10
7
11
12
9
12
18
14
12
14
11
10
14
10
10
15
10
14
18
Moonrise
5:17
5:42
6:11
6:48
7:36
8:36
9:46
11:02
12:17
1:31
2:40
3:48
4:53
5:59
7:04
8:10
Moonset
6:50
8:10
9:33
10:54
12:09
1:10
1:59
2:35
3:04
3:28
3:48
4:07
4:26
4:47
5:09
Sunrise
6:01
6:00
5:58
5:56
5:54
5:54
5:52
5:50
5:48
5:48
5:46
5:45
5:43
5:41
5:39
5:39
Sunset
7:27
7:28
7:29
7:30
7:30
7:31
7:34
7:35
7:36
7:37
7:37
7:38
7:39
7:42
7:43
7:44
Today's sea temperature in Riverside, Merrimack River is
5.9° C
(Statistics for 16 Apr 1981-2005 – mean: 5.3 max: 6.9 min: 3.4°C)
Issued (local time): 1 am Thursday 16 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest