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 — and sunset is at 03:44 PM.

Days 1–4 Weather Summary

Some drizzle, heaviest during Sun afternoon. Cool air temperatures (max 11°C on Sun night, min 6°C on Mon night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Low air temperatures (max 6°C on Tue afternoon, min 3°C on Wed afternoon). Winds increasing (moderate winds from the ENE on Tue night, strong winds from the ENE by Thu morning).

Days 8–10 Weather Summary

Mostly dry. Mild temperatures (max 7°C on Fri night, min 4°C on Sat night). Mainly fresh winds.

Days 11–13 Weather Summary

Mostly dry. Mild temperatures (max 8°C on Mon night, min 4°C on Thu morning). Mainly fresh winds.

Sat
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thu
1
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
00:02AM3.77m
12:24PM3.68m
00:36AM3.78m
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
Low Tide
5:31PM0.89m
5:58AM0.71m
6:06PM0.87m
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
Wave
height (m) 
direction
period (s) 
0.5
SSE
4
0.8
ESE
4
0.5
SE
4
0.6
E
4
0.8
E
4
0.9
ENE
6
0.8
ENE
6
0.7
ENE
6
1
ENE
5
1.1
ENE
6
1.2
ENE
6
1.6
ENE
6
1.5
ENE
6
1.5
ENE
6
1.8
ENE
7
2
ENE
8
1.4
ENE
7
1.1
ENE
6
1.1
ENE
6
1.1
ENE
6
1.2
NE
6
1.4
NE
8
0.9
ENE
7
0.6
NE
6
0.7
NE
7
0.9
NE
10
0.9
NE
9
0.8
NE
9
0.6
NE
8
0.6
NE
5
0.6
NE
7
0.5
NE
6
0.4
NE
8
0.4
NE
7
0.4
NE
5
0.3
NE
4
part cloud
cloud
part cloud
light rain
part cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
cloud
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
some clouds
cloudy
some clouds
light rain
some clouds
cloudy
some clouds
clear
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
cloudy
clear
clear
clear
clear
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
clear
clear
clear
clear
 km/h
25
SE
20
SE
20
ESE
20
E
20
E
20
ESE
15
E
15
NE
25
ENE
25
NE
25
ENE
35
ENE
35
ENE
35
ENE
45
NE
45
ENE
25
ENE
25
NE
30
NE
25
NNE
35
NNE
35
NNE
20
NNE
20
NNW
25
N
35
N
35
N
30
N
20
NNW
25
NNW
25
NNW
20
NNW
15
NNW
15
NNW
15
NNW
15
NW
 mm 
1
max°C
9
10
10
10
11
9
9
8
6
6
6
4
3
3
4
4
3
4
5
7
6
5
5
5
5
6
6
7
8
6
6
7
7
7
6
5
Moonrise
9:40
10:10
10:31
10:47
11:00
11:11
11:22
11:34
11:48
12:07
12:34
1:15
Moonset
3:29
4:36
5:51
7:09
8:28
9:47
11:06
12:27
1:52
3:21
4:54
6:25
Sunrise
8:00
8:00
8:00
8:00
8:00
8:02
8:02
8:02
8:02
8:02
8:02
8:02
Sunset
3:44
3:45
3:45
3:45
3:45
3:47
3:48
3:48
3:49
3:49
3:51
3:52
Today's sea temperature in Harwich is
7.8° C
(Statistics for 20 Dec 1981-2005 – mean: 9.5 max: 10.9 min: 8.0°C)
Issued (local time): 5 pm Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest