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 03:45 PM.

Days 1–3 Weather Summary

Mostly dry. Cool air temperatures (max 10°C on Mon morning, min 3°C on Wed morning). Winds increasing (light winds from the E on Mon afternoon, strong winds from the ENE by Wed night).

Days 4–6 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 afternoon).

Days 7–9 Weather Summary

Mostly dry. Mild temperatures (max 9°C on Tue night, min 4°C on Sun morning). Mainly fresh winds.

Days 10–12 Weather Summary

Light rain (total 8mm), mostly falling on Fri night. Freeze-thaw conditions (max 8°C on Wed afternoon, min -1°C on Fri morning). Winds increasing (light winds from the WNW on Wed afternoon, strong winds from the WSW by Fri night).

Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
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
1:01PM3.70m
1:09AM3.78m
1:38PM3.71m
1:43AM3.77m
2:16PM3.71m
2:20AM3.77m
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
Low Tide
6:34AM0.66m
6:42PM0.88m
7:10AM0.63m
7:18PM0.91m
7:45AM0.61m
7:54PM0.95m
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
Wave
height (m) 
direction
period (s) 
0.8
ENE
6
0.7
ENE
6
0.7
ENE
5
1
ENE
6
1.3
ENE
6
1.6
ENE
7
1.9
ENE
7
1.7
ENE
7
2
ENE
8
2.2
ENE
8
1.9
ENE
7
1.4
ENE
7
1.3
ENE
6
1.2
ENE
6
1.6
ENE
6
1.2
ENE
6
0.9
ENE
5
0.9
NE
6
1.2
NE
8
0.9
NE
7
0.5
E
4
0.4
NE
7
0.4
NE
4
0.4
NE
5
0.8
NE
8
0.6
NE
8
0.6
NE
8
0.5
NE
8
0.4
NE
8
0.4
SW
3
0.6
SW
3
0.9
WSW
4
0.9
NNW
4
0.8
NE
13
0.9
NE
14
1.1
SW
5
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
rain showers
clear
cloud
mod rain
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
cloudy
clear
clear
clear
clear
some clouds
clear
clear
some clouds
clear
clear
clear
some clouds
some clouds
rain shwrs
clear
cloudy
mod rain
 km/h
15
ESE
10
E
20
E
25
ENE
30
ENE
35
ENE
40
ENE
40
ENE
45
ENE
45
ENE
40
ENE
30
ENE
25
ENE
30
NE
35
ENE
30
NE
20
NNE
30
NNE
30
NNE
25
NE
15
N
15
N
15
N
20
NNW
20
N
25
NNW
25
NNW
15
NNW
15
WNW
20
W
30
W
40
WNW
40
NNW
35
NW
35
WSW
40
WNW
 mm 
2
6
max°C
10
9
8
6
6
5
3
4
4
4
4
4
4
5
6
6
6
5
5
6
5
4
5
5
7
7
9
7
8
4
6
7
3
1
3
5
Moonrise
10:10
10:31
10:47
11:00
11:11
11:22
11:34
11:48
12:07
12:34
1:15
2:17
Moonset
5:51
7:09
8:28
9:47
11:06
12:27
1:52
3:21
4:54
6:25
7:43
Sunrise
8:00
8:00
8:00
8:00
8:02
8:02
8:02
8:02
8:02
8:02
8:02
8:02
Sunset
3:45
3:45
3:45
3:47
3:48
3:48
3:49
3:49
3:51
3:52
3:53
3:55
Today's sea temperature in Harwich is
8.8° C
(Statistics for 22 Dec 1981-2005 – mean: 9.4 max: 10.7 min: 8.0°C)
Issued (local time): 5 am Monday 22 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest