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

Moderate rain (total 13mm), heaviest on Fri night. Cool air temperatures (max 13°C on Sun afternoon, min 5°C on Thu night). Winds increasing (light winds from the SW on Thu night, near gales from the S by Fri night).

Days 5–7 Weather Summary

Light rain (total 9mm), mostly falling on Mon night. Cool air temperatures (max 14°C on Tue afternoon, min 10°C on Sun night). Winds increasing (moderate winds from the SSW on Mon afternoon, strong winds from the SSW by Wed morning).

Days 8–10 Weather Summary

Some drizzle, heaviest during Fri night. Very mild (max 11°C on Fri morning, min 8°C on Wed night). Mainly fresh winds.

Days 11–13 Weather Summary

Light rain (total 5mm), mostly falling on Tue afternoon. Very mild (max 12°C on Sun morning, min 6°C on Mon night). Winds increasing (light winds from the WSW on Sun night, strong winds from the WSW by Tue night).

Friday
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tue
16
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
10:58PM4.01m
11:20AM4.10m
11:46PM4.01m
12:11PM4.13m
00:32AM3.98m
1:01PM4.09m
1:18AM3.93m
1:50PM4.00m
2:03AM3.85m
2:40PM3.87m
2:49AM3.76m
3:31PM3.72m
3:36AM3.66m
4:24PM3.57m
4:27AM3.55m
5:21PM3.46m
5:26AM3.46m
6:23PM3.40m
6:32AM3.40m
7:30PM3.42m
7:45AM3.40m
8:34PM3.49m
8:53AM3.46m
Low Tide
4:49AM0.57m
5:15PM0.50m
5:38AM0.48m
6:03PM0.60m
6:28AM0.43m
6:50PM0.75m
7:19AM0.44m
7:37PM0.91m
8:10AM0.49m
8:25PM1.08m
9:04AM0.57m
9:14PM1.24m
10:03AM0.68m
10:10PM1.36m
11:06AM0.77m
11:14PM1.43m
12:08PM0.84m
00:20AM1.42m
1:10PM0.88m
1:23AM1.36m
2:08PM0.90m
2:24AM1.25m
3:02PM0.91m
Wave
height (m) 
direction
period (s) 
0.4
SSE
4
0.2
SSW
2
0.7
S
4
1.9
SSE
7
1.1
S
5
1
SSW
5
1
SW
4
0.4
SSW
4
1
SSE
4
1.1
SSW
5
0.8
SSW
4
0.7
SSW
4
0.8
S
4
1.2
S
5
1.3
S
5
1.2
S
5
1.4
SSE
5
1.3
SW
5
0.5
SW
4
0.4
SSW
3
0.6
S
4
0.9
SSE
4
0.9
SSE
5
0.8
SSE
4
0.8
S
4
0.7
S
4
0.7
S
4
0.8
SSE
5
0.8
S
4
0.5
S
4
0.3
S
3
0.2
SSW
2
0.1
SW
2
0.2
WSW
2
0.3
SW
3
1
S
4
clear
part cloud
cloud
rain showers
cloud
light rain
rain showers
cloud
mod rain
rain showers
cloud
cloud
light rain
light rain
light rain
clear
cloud
clear
clear
clear
clear
part cloud
cloud
cloud
light rain
cloud
cloud
light rain
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
rain showers
clear
some clouds
cloudy
rain shwrs
cloudy
light rain
rain shwrs
cloudy
mod rain
rain shwrs
cloudy
cloudy
light rain
light rain
light rain
clear
cloudy
clear
clear
clear
clear
some clouds
cloudy
cloudy
light rain
cloudy
cloudy
light rain
some clouds
clear
some clouds
some clouds
some clouds
clear
some clouds
rain shwrs
 km/h
15
WSW
15
SW
35
S
45
S
35
SW
40
SW
40
WSW
15
SSW
35
SSE
40
W
30
SW
25
SW
30
SSW
40
SSW
40
SW
35
SSW
50
SSW
50
W
20
WSW
20
SSW
20
S
30
SSE
25
S
30
S
25
SSW
25
S
25
S
25
SSW
30
SSW
20
SW
15
WSW
15
W
15
W
15
W
20
WSW
45
SSW
 mm 
5
1
1
6
1
4
3
1
1
1
4
max°C
7
8
9
11
10
11
10
11
13
13
13
13
12
13
14
13
13
10
9
10
10
10
11
11
11
11
11
11
12
12
10
8
9
7
8
10
Moonrise
3:35
4:47
6:14
7:43
9:09
10:29
11:45
12:58
2:11
3:23
4:36
Moonset
8:57
10:05
10:51
11:20
11:40
11:55
12:06
12:16
12:26
12:37
12:49
1:04
Sunrise
7:45
7:46
7:47
7:48
7:50
7:50
7:52
7:52
7:54
7:54
7:54
7:56
Sunset
3:44
3:44
3:44
3:42
3:42
3:42
3:42
3:42
3:42
3:42
3:42
3:42
Today's sea temperature in Harwich is
9.1° C
(Statistics for 04 Dec 1981-2005 – mean: 10.7 max: 12.2 min: 9.0°C)
Issued (local time): 11 pm Thursday 04 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest