Harwich Sea Conditions and Tide Table

Harwich 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 08:00 AM and sunset is at 03:47 PM.

Days 1–3 Weather Summary

Mostly dry. Low air temperatures (max 6°C on Fri night, min 3°C on Thu morning). Winds decreasing (strong winds from the ENE on Thu morning, moderate winds from the NNE by Sat night).

Days 4–6 Weather Summary

Mostly dry. Low air temperatures (max 8°C on Mon night, min 3°C on Sun night). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 2mm), mostly falling on Thu afternoon. Freeze-thaw conditions (max 3°C on Wed morning, min -1°C on Fri morning). Winds decreasing (strong winds from the NNE on Thu afternoon, light winds from the NNW by Fri night).

Days 10–12 Weather Summary

Light rain (total 3mm), mostly falling on Tue morning. Freeze-thaw conditions (max 5°C on Mon night, min 0°C on Sun afternoon). Winds increasing (calm on Mon morning, fresh winds from the SW by Tue morning).

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
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
2:57PM3.70m
3:00AM3.76m
3:43PM3.67m
3:45AM3.74m
4:34PM3.64m
4:39AM3.70m
5:32PM3.60m
5:40AM3.65m
6:34PM3.58m
6:47AM3.62m
7:40PM3.58m
7:57AM3.64m
8:46PM3.61m
9:10AM3.64m
9:50PM3.62m
10:19AM3.75m
10:48PM3.71m
11:17AM3.89m
11:39PM3.82m
12:09PM3.99m
00:26AM3.93m
12:57PM4.05m
1:11AM4.00m
Low Tide
8:21AM0.60m
8:31PM0.99m
8:59AM0.60m
9:11PM1.04m
9:44AM0.62m
10:01PM1.12m
10:45AM0.67m
11:08PM1.18m
12:05PM0.70m
00:31AM1.17m
1:18PM0.69m
1:43AM1.08m
2:21PM0.68m
2:45AM0.97m
3:17PM0.74m
3:45AM0.81m
4:13PM0.75m
4:41AM0.64m
5:05PM0.77m
5:35AM0.48m
5:54PM0.79m
6:25AM0.34m
6:41PM0.80m
Wave
height (m) 
direction
period (s) 
2.1
ENE
8
1.9
ENE
7
1.4
ENE
7
1.3
ENE
6
1.2
ENE
6
1.1
ENE
6
1
ENE
5
0.9
ENE
5
1
NE
6
1
ENE
5
0.9
ENE
4
0.5
NE
7
0.4
NE
9
0.5
NE
4
0.4
NE
7
0.5
NE
8
0.6
NE
7
0.7
NE
9
0.6
NE
10
0.6
NE
10
0.6
NE
6
0.6
NNE
6
0.8
NE
6
1.7
ENE
8
1
ENE
7
0.6
NE
7
0.5
NE
9
0.6
ENE
8
0.5
NE
7
0.5
NE
7
0.5
NE
7
0.4
NE
7
0.4
NE
6
0.5
NE
6
0.4
NE
6
0.5
S
3
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
cloud
clear
clear
cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
rain showers
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
light rain
clear
clear
clear
clear
clear
clear
clear
cloudy
some clouds
cloudy
clear
clear
cloudy
cloudy
cloudy
cloudy
some clouds
cloudy
some clouds
some clouds
cloudy
cloudy
rain shwrs
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
clear
light rain
 km/h
45
ENE
45
ENE
30
ENE
30
ENE
30
ENE
25
ENE
25
NE
30
NE
25
NNE
25
NE
20
NE
15
N
15
N
20
N
15
NNW
20
NNW
25
NW
15
NNW
20
NW
25
NW
30
WNW
35
NW
35
NNW
35
N
25
NW
35
NW
15
NW
10
N
10
N
10
NNW
10
NW
10
NW
15
NNW
5
N
10
SW
20
SW
 mm 
2
1
max°C
3
4
4
4
5
6
6
6
4
5
5
4
5
6
8
6
6
6
3
3
1
2
2
3
0
1
0
2
2
2
1
1
3
3
3
5
Moonrise
11:00
11:11
11:22
11:34
11:48
12:07
12:34
1:15
2:17
3:38
5:09
6:39
Moonset
9:47
11:06
12:27
1:52
3:21
4:54
6:25
7:43
8:39
9:17
9:41
Sunrise
8:00
8:02
8:02
8:02
8:02
8:02
8:02
8:02
8:02
8:02
8:00
8:00
Sunset
3:47
3:48
3:48
3:49
3:49
3:51
3:52
3:53
3:55
3:56
3:56
3:57
Today's sea temperature in Harwich is
8.4° C
(Statistics for 25 Dec 1981-2005 – mean: 9.2 max: 10.7 min: 8.0°C)
Issued (local time): 5 am Thursday 25 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest