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 —.

Days 1–4 Weather Summary

Mostly dry. Low air temperatures (max 5°C on Wed afternoon, min 3°C on Wed morning). Winds decreasing (near gales from the ENE on Wed night, fresh winds from the ENE by Thu night).

Days 5–7 Weather Summary

Mostly dry. Low air temperatures (max 6°C on Fri night, min 2°C on Mon morning). Mainly fresh winds.

Days 8–10 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Mild temperatures (max 6°C on Wed night, min 1°C on Wed morning). Winds increasing (light winds from the NNW on Mon night, strong winds from the NW by Wed night).

Days 11–13 Weather Summary

Light rain (total 3mm), mostly falling on Sat afternoon. Mild temperatures (max 7°C on Fri night, min 2°C on Thu night). Winds increasing (light winds from the WNW on Thu night, fresh winds from the W by Sat night).

Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sun
4
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
1:43AM3.77m
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
11:17AM3.89m
11:39PM3.82m
12:09PM3.99m
Low Tide
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
5:05PM0.77m
5:35AM0.48m
5:54PM0.79m
Wave
height (m) 
direction
period (s) 
1.6
ENE
7
1.9
ENE
7
1.8
ENE
7
2
ENE
8
2.2
ENE
8
1.8
ENE
7
1.5
ENE
7
1.4
ENE
6
1.2
ENE
6
1
E
6
0.7
E
4
0.7
ENE
4
1
NE
7
1.1
NE
6
0.9
ENE
5
0.5
NE
6
0.3
NE
8
0.3
NE
8
0.3
NE
7
0.3
NE
8
0.4
WNW
2
1
NE
11
0.9
NE
12
0.8
NE
10
0.7
NE
5
0.9
NE
9
0.9
NE
7
0.6
ENE
5
0.4
NE
7
0.5
SSW
3
0.5
SW
3
0.6
SW
4
0.7
SW
4
0.4
WSW
3
0.7
WSW
4
0.4
WNW
3
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
cloud
rain showers
light rain
part cloud
cloud
cloud
part cloud
part cloud
part cloud
light rain
part cloud
rain showers
cloud
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
some clouds
clear
clear
some clouds
cloudy
cloudy
rain shwrs
light rain
some clouds
cloudy
cloudy
some clouds
some clouds
some clouds
light rain
some clouds
rain shwrs
cloudy
 km/h
40
ENE
40
ENE
40
NE
45
ENE
50
ENE
40
ENE
30
ENE
30
ENE
30
ENE
25
ENE
20
NNE
25
NNE
30
NNE
25
NNE
25
NE
15
N
10
NW
10
NNW
10
NNW
20
NW
25
WNW
30
NNW
35
NW
30
NW
40
NW
30
N
20
N
10
NW
10
WSW
20
SW
25
W
25
W
30
W
25
WNW
35
WNW
25
NW
 mm 
1
1
2
1
max°C
4
4
5
4
4
4
4
5
5
6
5
5
4
4
4
4
3
3
5
4
5
5
2
3
6
5
5
5
2
5
7
6
7
7
6
5
Moonrise
10:47
11:00
11:11
11:22
11:34
11:48
12:07
12:34
1:15
2:17
3:38
5:09
Moonset
8:28
9:47
11:06
12:27
1:52
3:21
4:54
6:25
7:43
8:39
9:17
Sunrise
8:00
8:00
8:02
8:02
8:02
8:02
8:02
8:02
8:02
8:02
8:02
8:00
Sunset
3:45
3:47
3:48
3:48
3:49
3:49
3:51
3:52
3:53
3:55
3:56
3:56
Today's sea temperature in Harwich is
8.7° C
(Statistics for 23 Dec 1981-2005 – mean: 9.3 max: 10.7 min: 8.0°C)
Issued (local time): 11 pm Tuesday 23 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest