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 06:41 AM and sunset is at 06:52 PM.

Days 1–3 Weather Summary

Mostly dry. Warm air temperatures (max 22°C on Fri afternoon, min 12°C on Wed night). Winds increasing (light winds from the ENE on Thu morning, fresh winds from the NNW by Fri night).

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 18°C on Sun afternoon, min 14°C on Sat morning). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 4mm), mostly falling on Wed night. Warm (max 23°C on Tue night, min 15°C on Thu night). Mainly fresh winds.

Days 10–12 Weather Summary

Some drizzle, heaviest during Sat afternoon. Very mild (max 19°C on Fri afternoon, min 12°C on Sat night). Winds decreasing (fresh winds from the S on Sat morning, calm by Sat night).

Days 13–16 Weather Summary

Mostly dry. Very mild (max 19°C on Mon afternoon, min 14°C on Mon night). Wind will be generally light.

Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
Wednesday
7
Thu
8
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
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
High Tide
10:16AM3.35m
10:44PM3.60m
10:57AM3.58m
11:22PM3.83m
11:32AM3.80m
11:58PM4.03m
12:07PM3.99m
00:34AM4.17m
12:43PM4.14m
1:10AM4.24m
1:21PM4.25m
1:47AM4.23m
1:59PM4.28m
2:25AM4.14m
2:38PM4.24m
3:03AM4.00m
3:20PM4.12m
3:44AM3.82m
4:06PM3.94m
4:28AM3.61m
4:59PM3.71m
5:20AM3.39m
6:07PM3.49m
6:29AM3.22m
7:42PM3.41m
8:10AM3.21m
9:16PM3.59m
9:38AM3.46m
10:19PM3.86m
Low Tide
4:24PM0.94m
4:30AM1.16m
4:59PM0.74m
5:06AM0.96m
5:32PM0.55m
5:41AM0.79m
6:06PM0.38m
6:18AM0.65m
6:43PM0.28m
6:56AM0.56m
7:20PM0.25m
7:34AM0.55m
7:58PM0.32m
8:12AM0.60m
8:36PM0.47m
8:50AM0.69m
9:15PM0.69m
9:30AM0.81m
9:57PM0.95m
10:17AM0.97m
10:51PM1.23m
11:27AM1.13m
00:25AM1.45m
1:27PM1.12m
2:03AM1.45m
2:45PM0.91m
3:10AM1.33m
3:48PM0.69m
Wave
Height (m)
Direction
Period (s)
0.4
SSE
3
0.3
S
3
0.4
NE
5
0.3
NE
4
0.3
NE
8
0.5
SE
3
0.5
SE
4
0.4
SE
3
0.3
SSE
3
0.5
NE
4
0.4
NE
4
0.3
NE
4
0.4
ENE
4
0.3
ENE
4
0.4
S
3
0.1
NE
4
0.1
NE
3
0.1
S
2
0.9
ESE
4
0.8
E
4
0.9
ESE
4
0.7
ESE
4
0.6
SSE
4
0.4
SSE
3
0.5
S
3
0.6
S
4
0.4
SSW
3
0.2
SSW
2
0.4
S
2
0.6
SSE
3
0.9
SSE
4
1
S
5
0.3
S
3
0.1
S
3
0.1
E
2
0.2
NNE
2
0.3
NE
3
0.3
NE
3
0.6
ENE
6
0.7
ENE
5
0.7
NE
5
0.5
NE
5
0.5
NE
4
0.5
NE
5
0.4
NE
5
0.4
NE
5
0.4
NE
5
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
part cloud
light rain
cloud
cloud
light rain
part cloud
part cloud
clear
clear
clear
part cloud
cloud
light rain
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
some clouds
clear
some clouds
some clouds
some clouds
clear
clear
clear
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
some clouds
light rain
cloudy
cloudy
light rain
some clouds
some clouds
clear
clear
clear
some clouds
cloudy
light rain
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
clear
clear
clear
clear
km/h
20
SSW
25
NW
15
N
5
ENE
15
SSE
20
SSE
15
S
15
SSE
15
W
20
N
15
ENE
10
E
15
SE
15
S
15
WSW
10
WSW
15
SSE
10
E
30
ESE
30
ESE
20
SE
20
S
20
SSE
20
S
25
S
30
SSW
20
SSW
15
SW
25
S
25
SE
30
S
25
SW
15
WSW
5
NE
15
E
15
NNE
15
N
15
N
20
N
25
NNE
25
NE
15
NNE
20
NE
15
NE
15
NNE
15
NNE
15
ENE
 mm
1
3
1
max °C
20
21
14
15
15
16
18
22
21
16
16
15
16
18
17
17
17
17
17
19
23
20
21
19
20
20
17
17
19
17
17
16
16
16
16
15
17
19
14
18
17
16
18
19
15
17
17
Moonrise
5:46
5:58
6:09
6:21
6:33
6:49
7:09
7:38
8:20
9:21
10:37
12:04
1:32
2:57
4:20
Moonset
2:31
3:48
5:06
6:25
7:46
9:10
10:39
12:07
1:31
2:42
3:34
4:09
4:34
4:51
5:05
5:18
Sunrise
6:41
6:41
6:43
6:46
6:47
6:48
6:50
6:52
6:54
6:56
6:56
6:58
7:01
7:01
7:03
7:05
Sunset
6:52
6:49
6:46
6:45
6:42
6:39
6:37
6:35
6:32
6:30
6:28
6:25
6:23
6:22
6:19
6:16
Today's sea temperature in Harwich is
18.4°C
(Statistics for 23 Sep 1981-2005 – mean: 16.5 max: 18.4 min: 14.3°C)
Issued (local time): 12 pm Wednesday 23 Sep 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest